FSTU6800A [ETC]

;
FSTU6800A
型号: FSTU6800A
厂家: ETC    ETC
描述:

文件: 总178页 (文件大小:3945K)
中文:  中文翻译
下载:  下载PDF数据表文档文件
Index of /ds/FS/  
Name  
Last modified  
Size Description  
Parent Directory  
FSB560.pdf  
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22-Dec-99 00:08 208K  
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31-Dec-99 00:00 98K  
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31-Dec-99 00:00 96K  
FSB560A.pdf  
FSB619.pdf  
FSB660.pdf  
FSB660A.pdf  
FSB6726.pdf  
FSBCW30.pdf  
FST16209.pdf  
FST16210.pdf  
FST16211.pdf  
FST16212.pdf  
FST16213.pdf  
FST16232.pdf  
FST16233.pdf  
FST162861.pdf  
FST16292.pdf  
FST16861.pdf  
FST3125.pdf  
FST3126.pdf  
FST3244.pdf  
FST3245.pdf  
FST3253.pdf  
FST3257.pdf  
FST3345.pdf  
FST3383.pdf  
FST3384.pdf  
FST3384A.pdf  
FST6800.pdf  
FSTD16211.pdf  
FSTU32160.pdf  
FSTU32160A.pdf  
FSTU3257.pdf  
FSTU3384.pdf  
FSTU6800.pdf  
FSTU6800A.pdf  
31-Dec-99 00:00 119K  
22-Dec-99 00:08 50K  
31-Dec-99 00:00 99K  
22-Dec-99 00:08 90K  
31-Dec-99 00:00 121K  
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31-Dec-99 00:00 182K  
July 1998  
FSB560 / FSB560A  
C
E
B
SuperSOTTM-3 (SOT-23)  
NPN Low Saturation Transistor  
These devices are designed with high current gain and low saturation voltage with collector currents up to 2A  
continuous.  
Absolute Maximum Ratings*  
TA = 25°C unless otherwise noted  
FSB560/FSB560A  
Symbol  
Parameter  
Units  
Collector-Emitter Voltage  
60  
V
VCEO  
Collector-Base Voltage  
Emitter-Base Voltage  
80  
5
V
V
VCBO  
VEBO  
Collector Current - Continuous  
2
A
IC  
Operating and Storage Junction Temperature Range  
-55 to +150  
°C  
TJ, Tstg  
*These ratings are limiting values above which the serviceability of any semiconductor device may be impaired.  
NOTES:  
1) These ratings are based on a maximum junction temperature of 150°C.  
2) These are steady state limits. The factory should be consulted on applications involving pulsed or low duty cycle operations.  
Thermal Characteristics  
TA = 25°C unless otherwise noted  
Max  
Characteristic  
Symbol  
Units  
FSB560/FSB560A  
Total Device Dissipation  
Thermal Resistance, Junction to Ambient  
500  
mW  
PD  
250  
°C/W  
RqJA  
ã 1998 Fairchild Semiconductor Corporation  
fsb560.lwpPrNA 7/1098 RevB  
 
NPN Low Saturation Transistor  
(continued)  
Electrical Characteristics  
TA = 25°C unless otherwise noted  
Symbol  
Parameter  
Test Conditions  
Min  
Max  
Units  
OFF CHARACTERISTICS  
Collector-Emitter Breakdown Voltage  
Collector-Base Breakdown Voltage  
Emitter-Base Breakdown Voltage  
Collector Cutoff Current  
60  
80  
5
V
V
V
BVCEO  
BVCBO  
BVEBO  
ICBO  
IC = 10 mA  
IC = 100 mA  
IE = 100 mA  
100  
10  
nA  
uA  
VCB = 30 V  
VCB = 30 V, TA=100°C  
Emitter Cutoff Current  
100  
nA  
IEBO  
VEB = 4V  
ON CHARACTERISTICS*  
DC Current Gain  
hFE  
70  
100  
250  
80  
-
IC = 100 mA, VCE = 2 V  
IC=500mA, VCE =2V FSB560  
FSB560A  
300  
550  
IC = 1 A, VCE = 2 V  
IC = 2 A, VCE = 2 V  
40  
Collector-Emitter Saturation Voltage  
300  
350  
300  
1.25  
mV  
VCE(sat)  
IC = 1 A, IB = 100 mA  
IC = 2 A, IB=200 mA FSB560  
FSB560A  
Base-Emitter Saturation Voltage  
Base-Emitter On Voltage  
V
V
VBE(sat)  
VBE(on)  
IC = 1 A, IB = 100 mA  
IC = 1 A, VCE = 2 V  
1
SMALL SIGNAL CHARACTERISTICS  
Output Capacitance  
Cobo  
30  
pF  
-
V
CB = 10 V, IE = 0, f = 1MHz  
Transition Frequency  
fT  
75  
IC = 100 mA,VCE = 5 V, f=100MHz  
*Pulse Test: Pulse Width £ 300 ms, Duty Cycle £ 2.0%  
ã 1998 Fairchild Semiconductor Corporation  
fsb560.lwpPrNA 7/1098 RevB  
Typical Characteristics  
Base-Emitter Saturation  
Voltage vs Collector Current  
Base-Emitter On Voltage vs.  
Collector Current  
1.4  
1.4  
1.2  
1
β = 10  
Vce = 2.0V  
1.2  
1
- 40 °C  
- 40 °C  
0.8  
0.8  
0.6  
0.4  
25 °C  
0.6  
25 °C  
0.4  
125 °C  
125 °C  
0.2  
0.2  
0.001  
0.01  
0.1  
1
10  
0.0001  
0.001  
0.01  
0.1  
1
10  
I C- COLLECTOR CURRENT (A)  
I C - COLLECTOR CURRENT (A)  
Collector-Emitter Saturation  
Voltage vs Collector Current  
Input/Output Capacitance vs.  
Reverse Bias Voltage  
450  
400  
350  
300  
250  
200  
150  
100  
50  
0.8  
0.6  
0.4  
0.2  
0
f
= 1.0 MHz  
β = 10  
Cibo  
25°C  
125°C  
- 40°C  
Cobo  
0
0.1 0.2  
0.5  
1
2
5
10 20  
50 100  
0.001  
0.01  
0.1  
1
10  
VCE - COLLECTOR VOLTAGE (V)  
IC- COLLECTOR CURRENT (mA)  
Current Gain vs. Collector Current  
700  
Vce = 2.0V  
600  
500  
400  
300  
200  
100  
0
125°C  
25°C  
- 40°C  
0
0.5  
1
1.5  
2
2.5  
3
3.5  
I C - COLLECTOR CURRENT (mA)  
NA  
SuperSOTTM-3 Tape and Reel Data and Package Dimensions  
SSOT-3 Packaging  
Configuration: Figure 1.0  
Packaging Description:  
SSOT-3 parts are shipped in tape. The carrier tape is  
Customize Label  
made from dissipative (carbon filled) polycarbonate  
a
resin. The cover tape is a multilayer film (Heat Activated  
Adhesive in nature) primarily composed of polyester film,  
adhesive layer, sealant, and anti-static sprayed agent.  
These reeled parts in standard option are shipped with  
3,000 units per 7" or 177cm diameter reel. The reels are  
dark blue in color and is made of polystyrene plastic (anti-  
static coated). Other option comes in 10,000 units per 13"  
or 330cm diameter reel. This and some other options are  
described in the Packaging Information table.  
Antistatic Cover Tape  
These full reels are individually labeled and placed inside  
a
standard intermediate made of recyclable corrugated  
brown paper with a Fairchild logo printing. One pizza box  
contains eight reels maximum. And these intermediate  
boxes are placed inside  
a labeled shipping box which  
comes in different sizes depending on the number of parts  
shipped.  
Human Readable  
Label  
Embossed  
Carrier Tape  
3P  
3P  
3P  
3P  
SSOT-3 Std Packaging Information  
Standard  
(no flow code)  
Packaging Option  
D87Z  
Packaging type  
TNR  
TNR  
10,000  
13"  
SSOT-3 Std Unit Orientation  
Qty per Reel/Tube/Bag  
Reel Size  
3,000  
7" Dia  
Box Dimension (mm)  
Max qty per Box  
187x107x183 343x343x64  
343mm x 342mm x 64mm  
Intermediate box for D87Z Option  
Human Readable Label  
24,000  
0.0097  
0.1230  
30,000  
0.0097  
0.4150  
Weight per unit (gm)  
Weight per Reel (kg)  
Note/Comments  
Human Readable Label sample  
Human Readable  
Label  
187mm x 107mm x 183mm  
SSOT-3 Tape Leader and Trailer  
Intermediate Box for Standard Option  
Configuration: Figure 2.0  
Carrier Tape  
Cover Tape  
Components  
Trailer Tape  
Leader Tape  
300mm minimum or  
75 empty pockets  
500mm minimum or  
125 empty pockets  
August 1999, Rev. C  
SuperSOTTM-3 Tape and Reel Data and Package Dimensions, continued  
SSOT-3 Embossed Carrier Tape  
Configuration: Figure 3.0  
P0  
P2  
D0  
D1  
T
E1  
E2  
W
F
Wc  
B0  
Tc  
K0  
A0  
P1  
User Direction of Feed  
Dimensions are in millimeter  
E1 E2  
A0  
B0  
W
D0  
D1  
F
P1  
P0  
K0  
T
Wc  
Tc  
Pkg type  
SSOT-3  
(8mm)  
3.15  
+/-0.10  
2.77  
+/-0.10  
8.0  
+/-0.3  
1.55  
+/-0.05  
1.125  
+/-0.125  
1.75  
+/-0.10  
6.25  
min  
3.50  
+/-0.05  
4.0  
+/-0.1  
4.0  
+/-0.1  
1.30  
+/-0.10  
0.228  
+/-0.013  
5.2  
+/-0.3  
0.06  
+/-02  
Notes: A0, B0, and K0 dimensions are determined with respect to the EIA/Jedec RS-481  
rotational and lateral movement requirements (see sketches A, B, and C).  
0.5mm  
maximum  
20 deg maximum  
Typical  
component  
cavity  
center line  
0.5mm  
maximum  
B0  
20 deg maximum component rotation  
Typical  
component  
center line  
Sketch A (Side or Front Sectional View)  
Component Rotation  
Sketch C (Top View)  
Component lateral movement  
A0  
Sketch B (Top View)  
Component Rotation  
SSOT-3 Reel Configuration: Figure 4.0  
W1 Measured at Hub  
Dim A  
Max  
Dim A  
max  
See detail AA  
Dim N  
7"Diameter Option  
B Min  
Dim C  
See detail AA  
Dim D  
min  
W3  
13" Diameter Option  
W2 max Measured at Hub  
DETAIL AA  
Dim W2  
Dimensions are in inches and millimeters  
Reel  
Option  
Tape Size  
8mm  
Dim A  
Dim B  
Dim C  
Dim D  
Dim N  
Dim W1  
Dim W3 (LSL-USL)  
7.00  
177.8  
0.059  
1.5  
512 +0.020/-0.008  
13 +0.5/-0.2  
0.795  
20.2  
2.165  
55  
0.331 +0.059/-0.000  
8.4 +1.5/0  
0.567  
14.4  
0.311 – 0.429  
7.9 – 10.9  
7" Dia  
13.00  
330  
0.059  
1.5  
512 +0.020/-0.008  
13 +0.5/-0.2  
0.795  
20.2  
4.00  
100  
0.331 +0.059/-0.000  
8.4 +1.5/0  
0.567  
14.4  
0.311 – 0.429  
7.9 – 10.9  
8mm  
13" Dia  
July 1999, Rev. C  
SuperSOTTM-3 Tape and Reel Data and Package Dimensions, continued  
SuperSOT -3 (FS PKG Code 32)  
1 : 1  
Scale 1:1 on letter size paper  
Dimensions shown below are in:  
inches [millimeters]  
Part Weight per unit (gram): 0.0097  
September 1998, Rev. A  
TRADEMARKS  
The following are registered and unregistered trademarks Fairchild Semiconductor owns or is authorized to use and is  
not intended to be an exhaustive list of all such trademarks.  
ACEx™  
CoolFET™  
ISOPLANAR™  
MICROWIRE™  
POP™  
PowerTrench™  
QS™  
UHC™  
VCX™  
CROSSVOLT™  
E2CMOSTM  
FACT™  
FACT Quiet Series™  
Quiet Series™  
SuperSOT™-3  
SuperSOT™-6  
SuperSOT™-8  
TinyLogic™  
FAST®  
FASTr™  
GTO™  
HiSeC™  
DISCLAIMER  
FAIRCHILD SEMICONDUCTOR RESERVES THE RIGHT TO MAKE CHANGES WITHOUT FURTHER  
NOTICE TO ANY PRODUCTS HEREIN TO IMPROVE RELIABILITY, FUNCTION OR DESIGN. FAIRCHILD  
DOES NOT ASSUME ANY LIABILITY ARISING OUT OF THE APPLICATION OR USE OF ANY PRODUCT  
OR CIRCUIT DESCRIBED HEREIN; NEITHER DOES IT CONVEY ANY LICENSE UNDER ITS PATENT  
RIGHTS, NOR THE RIGHTS OF OTHERS.  
LIFE SUPPORT POLICY  
FAIRCHILD’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT  
DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF FAIRCHILD SEMICONDUCTOR CORPORATION.  
As used herein:  
1. Life support devices or systems are devices or  
systems which, (a) are intended for surgical implant into  
the body, or (b) support or sustain life, or (c) whose  
failure to perform when properly used in accordance  
with instructions for use provided in the labeling, can be  
reasonably expected to result in significant injury to the  
user.  
2. A critical component is any component of a life  
support device or system whose failure to perform can  
be reasonably expected to cause the failure of the life  
support device or system, or to affect its safety or  
effectiveness.  
PRODUCT STATUS DEFINITIONS  
Definition of Terms  
Datasheet Identification  
Product Status  
Definition  
Advance Information  
Formative or  
In Design  
This datasheet contains the design specifications for  
product development. Specifications may change in  
any manner without notice.  
Preliminary  
First Production  
This datasheet contains preliminary data, and  
supplementary data will be published at a later date.  
Fairchild Semiconductor reserves the right to make  
changes at any time without notice in order to improve  
design.  
No Identification Needed  
Obsolete  
Full Production  
This datasheet contains final specifications. Fairchild  
Semiconductor reserves the right to make changes at  
any time without notice in order to improve design.  
Not In Production  
This datasheet contains specifications on a product  
that has been discontinued by Fairchild semiconductor.  
The datasheet is printed for reference information only.  
Discrete Power & Signal  
Technologies  
July 1998  
FSB619  
C
E
B
SuperSOTTM-3 (SOT-23)  
NPN Low Saturation Transistor  
These devices are designed with high current gain and low saturation voltage with collector currents up to 3A  
continuous.  
Absolute Maximum Ratings*  
TA = 25°C unless otherwise noted  
FSB619  
Symbol  
VCEO  
VCBO  
VEBO  
IC  
Parameter  
Units  
Collector-Emitter Voltage  
50  
V
Collector-Base Voltage  
Emitter-Base Voltage  
50  
V
V
5
Collector Current - Continuous  
2
A
Operating and Storage Junction Temperature Range  
-55 to +150  
°C  
TJ, Tstg  
*These ratings are limiting values above which the serviceability of any semiconductor device may be impaired.  
NOTES:  
1) These ratings are based on a maximum junction temperature of 150°C.  
2) These are steady state limits. The factory should be consulted on applications involving pulsed or low duty cycle operations.  
Thermal Characteristics  
TA = 25°C unless otherwise noted  
Max  
Characteristic  
Symbol  
Units  
FSB619  
Total Device Dissipation*  
Derate above 25°C  
500  
4
mW  
mW/°C  
PD  
Thermal Resistance, Junction to Ambient  
250  
°C/W  
RqJA  
ã
1998 Fairchild Semiconductor Corporation  
Page 1 of 2  
 
*Device mounted on FR-4 PCB 4.5” X 5”; mounting pad 0.02 in2 of 2oz copper.  
NPN Low Saturation Transistor  
(continued)  
Electrical Characteristics  
TA = 25°C unless otherwise noted  
Symbol  
Parameter  
Test Conditions  
Min  
Max  
Units  
OFF CHARACTERISTICS  
Collector-Emitter Breakdown Voltage  
50  
50  
5
V
V
V
BVCEO  
BVCBO  
BVEBO  
ICBO  
IC = 10 mA  
Collector-Base Breakdown Voltage  
Emitter-Base Breakdown Voltage  
Collector Cutoff Current  
IC = 100 mA  
IE = 100 mA  
VCB = 40 V  
VEB = 4V  
100  
100  
100  
nA  
nA  
nA  
Emitter Cutoff Current  
IEBO  
Collector Emitter Cutoff Current  
ICES  
VCES = 40 V  
ON CHARACTERISTICS*  
DC Current Gain  
hFE  
200  
300  
200  
100  
-
IC = 10 mA, VCE = 2V  
IC = 200 mA, VCE = 2V  
IC = 1A, VCE = 2V  
IC = 2A, VCE = 2V  
Collector-Emitter Saturation Voltage  
20  
mV  
VCE(sat)  
IC = 100 mA, IB = 10 mA  
IC = 1 A, IB = 10 mA  
IC = 2 A, IB = 50 mA  
235  
320  
Base-Emitter Saturation Voltage  
Base-Emitter On Voltage  
1
1
V
V
VBE(sat)  
VBE(on)  
IC = 2 A, IB = 50 mA  
IC = 2 A, VCE = 2 V  
SMALL SIGNAL CHARACTERISTICS  
Output Capacitance  
Cobo  
30  
pF  
-
VCB = 10 V, IE = 0, f = 1MHz  
Transition Frequency  
fT  
100  
IC = 50 mA,VCE = 10 V, f=100MHz  
*Pulse Test: Pulse Width £ 300 ms, Duty Cycle £ 2.0%  
Page 2 of 2  
fsb619.lwpPrNA 7/10/98 revC  
July 1998  
FSB660 / FSB660A  
C
E
B
SuperSOTTM-3 (SOT-23)  
PNP Low Saturation Transistor  
These devices are designed with high current gain and low saturation voltage with collector currents up to 2A  
continuous.  
Absolute Maximum Ratings*  
TA = 25°C unless otherwise noted  
FSB660/FSB660A  
Symbol  
Parameter  
Units  
Collector-Emitter Voltage  
60  
V
VCEO  
Collector-Base Voltage  
Emitter-Base Voltage  
80  
5
V
V
VCBO  
VEBO  
Collector Current - Continuous  
2
A
IC  
Operating and Storage Junction Temperature Range  
-55 to +150  
°C  
TJ, Tstg  
*These ratings are limiting values above which the serviceability of any semiconductor device may be impaired.  
NOTES:  
1) These ratings are based on a maximum junction temperature of 150°C.  
2) These are steady state limits. The factory should be consulted on applications involving pulsed or low duty cycle operations.  
Thermal Characteristics  
TA = 25°C unless otherwise noted  
Max  
Characteristic  
Symbol  
Units  
FSB660/FSB660A  
Total Device Dissipation  
Thermal Resistance, Junction to Ambient  
500  
mW  
PD  
250  
°C/W  
RqJA  
ã
1998 Fairchild Semiconductor Corporation  
fsb660.lwpPrPA 7/10/98 RevB  
 
PNP Low Saturation Transistor  
(continued)  
Electrical Characteristics  
TA = 25°C unless otherwise noted  
Symbol  
Parameter  
Test Conditions  
Min  
Max  
Units  
OFF CHARACTERISTICS  
Collector-Emitter Breakdown Voltage  
Collector-Base Breakdown Voltage  
Emitter-Base Breakdown Voltage  
Collector Cutoff Current  
60  
80  
5
V
V
V
BVCEO  
BVCBO  
BVEBO  
ICBO  
IC = 10 mA  
IC = 100 mA  
IE = 100 mA  
100  
10  
nA  
uA  
VCB = 30 V  
VCB = 30 V, TA=100°C  
Emitter Cutoff Current  
100  
nA  
IEBO  
VEB = 4V  
ON CHARACTERISTICS*  
DC Current Gain  
hFE  
70  
100  
250  
80  
-
IC = 100 mA, VCE = 2 V  
IC=500mA, VCE =2V FSB660  
FSB660A  
300  
550  
IC = 1 A, VCE = 2 V  
IC = 2 A, VCE = 2 V  
40  
Collector-Emitter Saturation Voltage  
300  
350  
300  
1.25  
mV  
VCE(sat)  
IC = 1 A, IB = 100 mA  
IC = 2 A, IB=200 mA FSB660  
FSB660A  
Base-Emitter Saturation Voltage  
Base-Emitter On Voltage  
V
V
VBE(sat)  
VBE(on)  
IC = 1 A, IB = 100 mA  
IC = 1 A, VCE = 2 V  
1
SMALL SIGNAL CHARACTERISTICS  
Output Capacitance  
Cobo  
30  
pF  
-
V
CB = 10 V, IE = 0, f = 1MHz  
Transition Frequency  
fT  
75  
IC = 100 mA,VCE = 5 V, f=100MHz  
*Pulse Test: Pulse Width £ 300 ms, Duty Cycle £ 2.0%  
fsb660.lwpPrPA 7/10/98 RevB  
Typical Characteristics  
Base-Emitter Saturation  
Voltage vs Collector Current  
Base-Emitter On Voltage vs.  
Collector Current  
1.4  
1.6  
1.4  
1.2  
1
Vce = 2.0V  
β = 10  
1.2  
1
- 40°C  
0.8  
- 40°C  
0.8  
0.6  
0.4  
25°C  
0.6  
25°C  
125°C  
0.4  
125°C  
0.2  
0.2  
0.001  
0.01  
0.1  
1
10  
0.0001  
0.001  
0.01  
0.1  
1
10  
I C - COLLECTOR CURRENT (A)  
I C - COLLECTOR CURRENT (A)  
Collector-Emitter Saturation  
Voltage vs Collector Current  
Input/Output Capacitance vs.  
Reverse Bias Voltage  
0.8  
400  
350  
300  
250  
200  
150  
100  
50  
f = 1.0MHz  
β = 10  
0.7  
0.6  
0.5  
0.4  
0.3  
0.2  
0.1  
0
Cobo  
125°C  
25°C  
Cibo  
- 40°C  
0
0.01  
0.1  
1
10  
0.1  
0.5  
1
10 20  
50 100  
I C - COLLECTOR CURRENT (mA)  
VCE - COLLECTOR VOLTAGE (V)  
Current Gain vs. Collector Current  
1000  
Vce = 2.0V  
125°C  
900  
800  
700  
600  
500  
400  
300  
200  
100  
0
25°C  
- 40°C  
0.0001  
0.001  
0.01  
0.1  
1
10  
I C - COLLECTOR CURRENT (mA)  
PA  
SuperSOTTM-3 Tape and Reel Data and Package Dimensions  
SSOT-3 Packaging  
Configuration: Figure 1.0  
Packaging Description:  
SSOT-3 parts are shipped in tape. The carrier tape is  
Customize Label  
made from dissipative (carbon filled) polycarbonate  
a
resin. The cover tape is a multilayer film (Heat Activated  
Adhesive in nature) primarily composed of polyester film,  
adhesive layer, sealant, and anti-static sprayed agent.  
These reeled parts in standard option are shipped with  
3,000 units per 7" or 177cm diameter reel. The reels are  
dark blue in color and is made of polystyrene plastic (anti-  
static coated). Other option comes in 10,000 units per 13"  
or 330cm diameter reel. This and some other options are  
described in the Packaging Information table.  
Antistatic Cover Tape  
These full reels are individually labeled and placed inside  
a
standard intermediate made of recyclable corrugated  
brown paper with a Fairchild logo printing. One pizza box  
contains eight reels maximum. And these intermediate  
boxes are placed inside  
a labeled shipping box which  
comes in different sizes depending on the number of parts  
shipped.  
Human Readable  
Label  
Embossed  
Carrier Tape  
3P  
3P  
3P  
3P  
SSOT-3 Std Packaging Information  
Standard  
(no flow code)  
Packaging Option  
D87Z  
Packaging type  
TNR  
TNR  
10,000  
13"  
SSOT-3 Std Unit Orientation  
Qty per Reel/Tube/Bag  
Reel Size  
3,000  
7" Dia  
Box Dimension (mm)  
Max qty per Box  
187x107x183 343x343x64  
343mm x 342mm x 64mm  
Intermediate box for D87Z Option  
Human Readable Label  
24,000  
0.0097  
0.1230  
30,000  
0.0097  
0.4150  
Weight per unit (gm)  
Weight per Reel (kg)  
Note/Comments  
Human Readable Label sample  
Human Readable  
Label  
187mm x 107mm x 183mm  
SSOT-3 Tape Leader and Trailer  
Intermediate Box for Standard Option  
Configuration: Figure 2.0  
Carrier Tape  
Cover Tape  
Components  
Trailer Tape  
Leader Tape  
300mm minimum or  
75 empty pockets  
500mm minimum or  
125 empty pockets  
August 1999, Rev. C  
SuperSOTTM-3 Tape and Reel Data and Package Dimensions, continued  
SSOT-3 Embossed Carrier Tape  
Configuration: Figure 3.0  
P0  
P2  
D0  
D1  
T
E1  
E2  
W
F
Wc  
B0  
Tc  
K0  
A0  
P1  
User Direction of Feed  
Dimensions are in millimeter  
E1 E2  
A0  
B0  
W
D0  
D1  
F
P1  
P0  
K0  
T
Wc  
Tc  
Pkg type  
SSOT-3  
(8mm)  
3.15  
+/-0.10  
2.77  
+/-0.10  
8.0  
+/-0.3  
1.55  
+/-0.05  
1.125  
+/-0.125  
1.75  
+/-0.10  
6.25  
min  
3.50  
+/-0.05  
4.0  
+/-0.1  
4.0  
+/-0.1  
1.30  
+/-0.10  
0.228  
+/-0.013  
5.2  
+/-0.3  
0.06  
+/-02  
Notes: A0, B0, and K0 dimensions are determined with respect to the EIA/Jedec RS-481  
rotational and lateral movement requirements (see sketches A, B, and C).  
0.5mm  
maximum  
20 deg maximum  
Typical  
component  
cavity  
center line  
0.5mm  
maximum  
B0  
20 deg maximum component rotation  
Typical  
component  
center line  
Sketch A (Side or Front Sectional View)  
Component Rotation  
Sketch C (Top View)  
Component lateral movement  
A0  
Sketch B (Top View)  
Component Rotation  
SSOT-3 Reel Configuration: Figure 4.0  
W1 Measured at Hub  
Dim A  
Max  
Dim A  
max  
See detail AA  
Dim N  
7"Diameter Option  
B Min  
Dim C  
See detail AA  
Dim D  
min  
W3  
13" Diameter Option  
W2 max Measured at Hub  
DETAIL AA  
Dim W2  
Dimensions are in inches and millimeters  
Reel  
Option  
Tape Size  
8mm  
Dim A  
Dim B  
Dim C  
Dim D  
Dim N  
Dim W1  
Dim W3 (LSL-USL)  
7.00  
177.8  
0.059  
1.5  
512 +0.020/-0.008  
13 +0.5/-0.2  
0.795  
20.2  
2.165  
55  
0.331 +0.059/-0.000  
8.4 +1.5/0  
0.567  
14.4  
0.311 – 0.429  
7.9 – 10.9  
7" Dia  
13.00  
330  
0.059  
1.5  
512 +0.020/-0.008  
13 +0.5/-0.2  
0.795  
20.2  
4.00  
100  
0.331 +0.059/-0.000  
8.4 +1.5/0  
0.567  
14.4  
0.311 – 0.429  
7.9 – 10.9  
8mm  
13" Dia  
July 1999, Rev. C  
SuperSOTTM-3 Tape and Reel Data and Package Dimensions, continued  
SuperSOT -3 (FS PKG Code 32)  
1 : 1  
Scale 1:1 on letter size paper  
Dimensions shown below are in:  
inches [millimeters]  
Part Weight per unit (gram): 0.0097  
September 1998, Rev. A  
TRADEMARKS  
The following are registered and unregistered trademarks Fairchild Semiconductor owns or is authorized to use and is  
not intended to be an exhaustive list of all such trademarks.  
ACEx™  
CoolFET™  
ISOPLANAR™  
MICROWIRE™  
POP™  
PowerTrench™  
QS™  
UHC™  
VCX™  
CROSSVOLT™  
E2CMOSTM  
FACT™  
FACT Quiet Series™  
Quiet Series™  
SuperSOT™-3  
SuperSOT™-6  
SuperSOT™-8  
TinyLogic™  
FAST®  
FASTr™  
GTO™  
HiSeC™  
DISCLAIMER  
FAIRCHILD SEMICONDUCTOR RESERVES THE RIGHT TO MAKE CHANGES WITHOUT FURTHER  
NOTICE TO ANY PRODUCTS HEREIN TO IMPROVE RELIABILITY, FUNCTION OR DESIGN. FAIRCHILD  
DOES NOT ASSUME ANY LIABILITY ARISING OUT OF THE APPLICATION OR USE OF ANY PRODUCT  
OR CIRCUIT DESCRIBED HEREIN; NEITHER DOES IT CONVEY ANY LICENSE UNDER ITS PATENT  
RIGHTS, NOR THE RIGHTS OF OTHERS.  
LIFE SUPPORT POLICY  
FAIRCHILD’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT  
DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF FAIRCHILD SEMICONDUCTOR CORPORATION.  
As used herein:  
1. Life support devices or systems are devices or  
systems which, (a) are intended for surgical implant into  
the body, or (b) support or sustain life, or (c) whose  
failure to perform when properly used in accordance  
with instructions for use provided in the labeling, can be  
reasonably expected to result in significant injury to the  
user.  
2. A critical component is any component of a life  
support device or system whose failure to perform can  
be reasonably expected to cause the failure of the life  
support device or system, or to affect its safety or  
effectiveness.  
PRODUCT STATUS DEFINITIONS  
Definition of Terms  
Datasheet Identification  
Product Status  
Definition  
Advance Information  
Formative or  
In Design  
This datasheet contains the design specifications for  
product development. Specifications may change in  
any manner without notice.  
Preliminary  
First Production  
This datasheet contains preliminary data, and  
supplementary data will be published at a later date.  
Fairchild Semiconductor reserves the right to make  
changes at any time without notice in order to improve  
design.  
No Identification Needed  
Obsolete  
Full Production  
This datasheet contains final specifications. Fairchild  
Semiconductor reserves the right to make changes at  
any time without notice in order to improve design.  
Not In Production  
This datasheet contains specifications on a product  
that has been discontinued by Fairchild semiconductor.  
The datasheet is printed for reference information only.  
FSB6726  
C
E
B
SuperSOTTM-3  
PNP General Purpose Amplifier  
This device is designed for general purpose medium power amplifiers and switches requiring collector currents  
to 1.0 A. Sourced from Process 77.  
Absolute Maximum Ratings*  
TA = 25°C unless otherwise noted  
FSB660/FSB660A  
Symbol  
Parameter  
Units  
Collector-Emitter Voltage  
30  
V
VCEO  
Collector-Base Voltage  
Emitter-Base Voltage  
40  
5
V
V
VCBO  
VEBO  
Collector Current - Continuous  
1.5  
A
IC  
Operating and Storage Junction Temperature Range  
-55 to +150  
°C  
TJ, Tstg  
*These ratings are limiting values above which the serviceability of any semiconductor device may be impaired.  
NOTES:  
1) These ratings are based on a maximum junction temperature of 150°C.  
2) These are steady state limits. The factory should be consulted on applications involving pulsed or low duty cycle operations.  
Thermal Characteristics  
TA = 25°C unless otherwise noted  
Max  
Characteristic  
Symbol  
Units  
FSB6726  
Total Device Dissipation  
Thermal Resistance, Junction to Ambient  
500  
mW  
PD  
250  
°C/W  
RqJA  
ã
1999 Fairchild Semiconductor Corporation  
Page 1 of 2  
fsb6726lwp Pr77 RevA  
 
PNP General Purpose Amplifier  
(continued)  
Electrical Characteristics  
TA = 25°C unless otherwise noted  
Symbol  
Parameter  
Test Conditions  
Min  
Max  
Units  
OFF CHARACTERISTICS  
Collector-Emitter Breakdown Voltage  
Collector-Base Breakdown Voltage  
Emitter-Base Breakdown Voltage  
Collector Cutoff Current  
30  
40  
5
V
V
BVCEO  
BVCBO  
BVEBO  
ICBO  
IC = 10 mA  
IC = 100 mA  
IE = 100 mA  
VCB = 40 V  
V
100  
100  
nA  
Emitter Cutoff Current  
nA  
IEBO  
VEB = 5V  
ON CHARACTERISTICS*  
DC Current Gain  
hFE  
60  
50  
-
-
IC = 100 mA, VCE = 1 V  
250  
500  
IC = 1 A,  
VCE = 1V  
Collector-Emitter Saturation Voltage  
mV  
V
VCE(sat)  
IC = 1 A, IB = 100 mA  
Base-Emitter On Voltage  
1.2  
VBE(on)  
IC = 1 A, VCE = 1 V  
SMALL SIGNAL CHARACTERISTICS  
Collector-Base Capacitance  
Ccb  
30  
25  
pF  
-
VCB = 10 V, f = 1MHz  
hfe  
Small Signal Current Gain  
2.5  
IC= 50 mA,VCE = 10V, f=20MHz  
*Pulse Test: Pulse Width £ 300 ms, Duty Cycle £ 2.0%  
Page 2 of 2  
fsb6726lwp Pr77 RevA  
TRADEMARKS  
The following are registered and unregistered trademarks Fairchild Semiconductor owns or is authorized to use and is  
not intended to be an exhaustive list of all such trademarks.  
ACEx™  
CoolFET™  
ISOPLANAR™  
MICROWIRE™  
POP™  
PowerTrench™  
QS™  
UHC™  
VCX™  
CROSSVOLT™  
E2CMOSTM  
FACT™  
FACT Quiet Series™  
Quiet Series™  
SuperSOT™-3  
SuperSOT™-6  
SuperSOT™-8  
TinyLogic™  
FAST®  
FASTr™  
GTO™  
HiSeC™  
DISCLAIMER  
FAIRCHILD SEMICONDUCTOR RESERVES THE RIGHT TO MAKE CHANGES WITHOUT FURTHER  
NOTICE TO ANY PRODUCTS HEREIN TO IMPROVE RELIABILITY, FUNCTION OR DESIGN. FAIRCHILD  
DOES NOT ASSUME ANY LIABILITY ARISING OUT OF THE APPLICATION OR USE OF ANY PRODUCT  
OR CIRCUIT DESCRIBED HEREIN; NEITHER DOES IT CONVEY ANY LICENSE UNDER ITS PATENT  
RIGHTS, NOR THE RIGHTS OF OTHERS.  
LIFE SUPPORT POLICY  
FAIRCHILD’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT  
DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF FAIRCHILD SEMICONDUCTOR CORPORATION.  
As used herein:  
1. Life support devices or systems are devices or  
systems which, (a) are intended for surgical implant into  
the body, or (b) support or sustain life, or (c) whose  
failure to perform when properly used in accordance  
with instructions for use provided in the labeling, can be  
reasonably expected to result in significant injury to the  
user.  
2. A critical component is any component of a life  
support device or system whose failure to perform can  
be reasonably expected to cause the failure of the life  
support device or system, or to affect its safety or  
effectiveness.  
PRODUCT STATUS DEFINITIONS  
Definition of Terms  
Datasheet Identification  
Product Status  
Definition  
Advance Information  
Formative or  
In Design  
This datasheet contains the design specifications for  
product development. Specifications may change in  
any manner without notice.  
Preliminary  
First Production  
This datasheet contains preliminary data, and  
supplementary data will be published at a later date.  
Fairchild Semiconductor reserves the right to make  
changes at any time without notice in order to improve  
design.  
No Identification Needed  
Obsolete  
Full Production  
This datasheet contains final specifications. Fairchild  
Semiconductor reserves the right to make changes at  
any time without notice in order to improve design.  
Not In Production  
This datasheet contains specifications on a product  
that has been discontinued by Fairchild semiconductor.  
The datasheet is printed for reference information only.  
Discr ete P OWER & Sign a l  
Tech n ologies  
FSBCW30  
C
E
B
SuperSOTTM-3  
PNP General Purpose Amplifier  
This device is designed for general purpose medium power  
amplifiers and switches requiring collector currents to 300 mA.  
Sourced from Process 68. See BC857A for characteristics.  
Absolute Maximum Ratings*  
TA = 25°C unless otherwise noted  
Symbol  
Parameter  
Value  
Units  
VCEO  
VCBO  
VEBO  
IC  
Collector-Emitter Voltage  
32  
32  
V
V
Collector-Base Voltage  
Emitter-Base Voltage  
5.0  
V
Collector Current - Continuous  
Operating and Storage Junction Temperature Range  
500  
mA  
°C  
-55 to +150  
TJ, Tstg  
*These ratings are limiting values above which the serviceability of any semiconductor device may be impaired.  
NOTES:  
1) These ratings are based on a maximum junction temperature of 150 degrees C.  
2) These are steady state limits. The factory should be consulted on applications involving pulsed or low duty cycle operations.  
Thermal Characteristics  
TA = 25°C unless otherwise noted  
Symbol  
Characteristic  
Max  
Units  
FSBCW30  
PD  
Total Device Dissipation  
Derate above 25°C  
Thermal Resistance, Junction to Ambient  
500  
4
250  
mW  
mW/°C  
°C/W  
RθJA  
*Device mounted on FR-4 PCB 4.5" x 5"; mounting pad 0.02 in2 of 2oz copper.  
1998 Fairchild Semiconductor Corporation  
FSBCW30, Rev B  
 
PNP General Purpose Amplifier  
(continued)  
Electrical Characteristics  
TA = 25°C unless otherwise noted  
Symbol  
Parameter  
Test Conditions  
Min  
Max  
Units  
OFF CHARACTERISTICS  
BVCEO  
Collector-Em itter Breakdown  
IC = 2.0 m A, IB = 0  
32  
V
Voltage  
BVCBO  
BVCES  
Collector-Base Breakdown Voltage  
32  
32  
V
V
IC = 10 µA, IE = 0  
IC = 10 µA, IE = 0  
Collector-Em itter Breakdown  
Voltage  
BVEBO  
ICBO  
Em itter-Base Breakdown Voltage  
5.0  
V
IE = 10 µA, IC = 0  
Collector-Cutoff Current  
VCB = 32 V, IE = 0  
VCB = 32 V, IE = 0, TA = +100  
100  
10  
nA  
µA  
°C  
ON CHARACTERISTICS  
hFE  
DC Current Gain  
VCE = 5.0 V, IC = 2.0 mA  
215  
500  
0.30  
0.75  
Collector-Emitter Saturation Voltage IC = 10 mA, IB = 0.5 mA  
Base-Emitter On Voltage VCE = 5.0 V, IC = 2.0 mA  
V
V
VCE(sat)  
VBE(on)  
0.60  
SMALL SIGNAL CHARACTERISTICS  
NF  
Noise Figure  
10  
dB  
VCE = 5.0 V, I = 200 A,  
µ
C
R = 2.0 k , f = 1.0 kHz,  
S
BW = 200 Hz  
FSBCW30, Rev  
B
PNP General Purpose Amplifier  
(continued)  
Typical Characteristics  
Typical Pulsed Current Gain  
vs Collector Current  
Collector-Emitter Saturation  
Voltage vs Collector Current  
500  
400  
300  
200  
100  
0
0.3  
0.25  
0.2  
VCE = 5V  
125 °C  
β
= 10  
0.15  
0.1  
25 °C  
25 °C  
- 40 °C  
0.05  
125 ºC  
- 40 ºC  
0
0.1  
1
10  
100  
300  
0.01  
0.1  
1
10  
100  
I C - COLLECTOR CURRENT (mA)  
IC - COLLECTOR CURRENT (mA)  
Base-Emitter Saturation  
Voltage vs Collector Current  
Base Emitter ON Voltage vs  
Collector Current  
1.2  
1
0.8  
0.6  
0.4  
0.2  
0
β
= 10  
1
0.8  
0.6  
0.4  
0.2  
0
- 40 ºC  
25 °C  
- 40 ºC  
25 °C  
125 ºC  
125 ºC  
V
= 5V  
CE  
0.1  
1
10  
100  
300  
0.1  
1
10  
100 200  
I C - COLLECTOR CURRENT (mA)  
I C - COLLECTOR CURRENT (mA)  
Collector-Cutoff Current  
vs. Ambient Temperature  
Collector-Emitter Breakdown  
Voltage with Resistance  
Between Emitter-Base  
100  
10  
V
= 50V  
CB  
95  
90  
85  
80  
75  
70  
1
0.1  
0.01  
25  
50  
75  
100  
125  
0.1  
1
10  
100  
1000  
TA- AMBIENT TEMPERATURE (ºC)  
RESISTANCE (k)  
FSBCW30, Rev  
B
PNP General Purpose Amplifier  
(continued)  
Typical Characteristics (continued)  
Input and Output Capacitance  
vs Reverse Voltage  
Collector Saturation Region  
4
100  
Ta = 25°C  
f = 1.0 MHz  
3
2
Ic =  
100 uA  
300 mA  
10  
50 mA  
Cib  
1
0
Cob  
100  
300  
700  
2000 4000  
0.1  
1
10  
100  
I
- BASE CURRENT (uA)  
B
V
- COLLECTOR VOLTAGE(V)  
ce  
Switching Times vs  
Collector Current  
Gain Bandwidth Product  
vs Collector Current  
300  
270  
240  
210  
180  
150  
120  
90  
40  
t
V
= 5V  
s
ce  
30  
20  
10  
0
IB1 = IB2 = Ic / 10  
V
= 10 V  
cc  
t
f
t
r
60  
30  
t
d
0
10  
20  
30  
50  
100  
200 300  
1
10  
20  
50  
100 150  
IC - COLLECTOR CURRENT (mA)  
IC- COLLECTOR CURRENT (mA)  
Power Dissipation vs  
Ambient Temperature  
700  
600  
500  
TO-92  
SOT-23  
400  
300  
200  
100  
0
0
25  
50  
75  
100  
125  
150  
TEMPERATURE (oC)  
FSBCW30, Rev  
B
TRADEMARKS  
The following are registered and unregistered trademarks Fairchild Semiconductor owns or is authorized to use and is  
not intended to be an exhaustive list of all such trademarks.  
ACEx™  
CoolFET™  
ISOPLANAR™  
MICROWIRE™  
POP™  
PowerTrench™  
QS™  
CROSSVOLT™  
E2CMOSTM  
FACT™  
FACT Quiet Series™  
Quiet Series™  
SuperSOT™-3  
SuperSOT™-6  
SuperSOT™-8  
TinyLogic™  
FAST®  
FASTr™  
GTO™  
HiSeC™  
DISCLAIMER  
FAIRCHILD SEMICONDUCTOR RESERVES THE RIGHT TO MAKE CHANGES WITHOUT FURTHER  
NOTICE TO ANY PRODUCTS HEREIN TO IMPROVE RELIABILITY, FUNCTION OR DESIGN. FAIRCHILD  
DOES NOT ASSUME ANY LIABILITY ARISING OUT OF THE APPLICATION OR USE OF ANY PRODUCT  
OR CIRCUIT DESCRIBED HEREIN; NEITHER DOES IT CONVEY ANY LICENSE UNDER ITS PATENT  
RIGHTS, NOR THE RIGHTS OF OTHERS.  
LIFE SUPPORT POLICY  
FAIRCHILD’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT  
DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF FAIRCHILD SEMICONDUCTOR CORPORATION.  
As used herein:  
1. Life support devices or systems are devices or  
systems which, (a) are intended for surgical implant into  
the body, or (b) support or sustain life, or (c) whose  
failure to perform when properly used in accordance  
with instructions for use provided in the labeling, can be  
reasonably expected to result in significant injury to the  
user.  
2. A critical component is any component of a life  
support device or system whose failure to perform can  
be reasonably expected to cause the failure of the life  
support device or system, or to affect its safety or  
effectiveness.  
PRODUCT STATUS DEFINITIONS  
Definition of Terms  
Datasheet Identification  
Product Status  
Definition  
Advance Information  
Formative or  
In Design  
This datasheet contains the design specifications for  
product development. Specifications may change in  
any manner without notice.  
Preliminary  
First Production  
This datasheet contains preliminary data, and  
supplementary data will be published at a later date.  
Fairchild Semiconductor reserves the right to make  
changes at any time without notice in order to improve  
design.  
No Identification Needed  
Obsolete  
Full Production  
This datasheet contains final specifications. Fairchild  
Semiconductor reserves the right to make changes at  
any time without notice in order to improve design.  
Not In Production  
This datasheet contains specifications on a product  
that has been discontinued by Fairchild semiconductor.  
The datasheet is printed for reference information only.  
September 1997  
Revised December 1999  
FST16209  
18-Bit Bus Exchange Switch  
General Description  
Features  
The Fairchild Switch FST16209 provides 18-bits of high-  
speed CMOS TTL-compatible bus switching or exchang-  
ing. The low on resistance of the switch allows inputs to be  
connected to outputs without adding propagation delay or  
generating additional ground bounce noise.  
4switch connection between two ports.  
Minimal propagation delay through the switch.  
Low lCC  
.
Zero bounce in flow-through mode.  
Control inputs compatible with TTL level.  
The device operates as a 18-bit bus switch or a 9-bit bus  
exchanger, which allows data exchange between the four  
signal ports via the data-select terminals.  
Ordering Code:  
Order Number  
FST16209MEA  
FST16209MTD  
Package Number  
MS48A  
Package Description  
48-Lead Small Shrink Outline Package (SSOP), JEDEC MO-118, 0.300 Wide  
48-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 6.1mm Wide  
MTD48  
Devices also available in Tape and Reel. Specify by appending the suffix letter “X” to the ordering code.  
Logic Diagram  
Connection Diagram  
Truth Table  
S2  
S1  
S0  
A1  
A2  
Function  
L
L
L
L
L
H
L
Z
B1  
B2  
Z
Z
Z
Disconnect  
A1 = B1  
A1 = B2  
A2 = B1  
A2 = B2  
L
H
H
L
Z
Pin Descriptions  
L
H
L
B1  
B2  
Z
H
H
H
H
Z
Pin Name  
S2, S1, S0  
A1, A2  
Description  
Data-select inputs  
Bus A  
L
H
L
Z
Disconnect  
H
H
B1  
B2  
B2  
B1  
A
A
1 = B1, A2 = B2  
1 = B2, A2 = B1  
H
B1, B2  
Bus B  
© 1999 Fairchild Semiconductor Corporation  
DS500056  
www.fairchildsemi.com  
 
Absolute Maximum Ratings(Note 1)  
Recommended Operating  
Conditions (Note 3)  
Supply Voltage (VCC  
)
0.5V to +7.0V  
0.5V to +7.0V  
0.5V to +7.0V  
50mA  
DC Switch Voltage (VS)  
Power Supply Operating (VCC  
Input Voltage (VIN  
Output Voltage (VOUT  
)
4.0V to 5.5V  
0V to 5.5V  
0V to 5.5V  
DC Input Voltage (VIN)(Note 2)  
DC Input Diode Current (lIK) VIN<0V  
DC Output (IOUT) Sink Current  
)
)
128mA  
Input Rise and Fall Time (tr, tf)  
Switch Control Input  
DC VCC/GND Current (ICC/IGND  
)
+/100mA  
0nS/V to 5nS/V  
0nS/V to DC  
Storage Temperature Range (TSTG  
)
65°C to +150 °C  
Switch I/O  
Free Air Operating Temperature (TA)  
40 °C to +85 °C  
Note 1: The “Absolute Maximum Ratings” are those values beyond which  
the safety of the device cannot be guaranteed. The device should not be  
operated at these limits. The parametric values defined in the Electrical  
Characteristics tables are not guaranteed at the absolute maximum rating.  
The “Recommended Operating Conditions” table will define the conditions  
for actual device operation.  
Note 2: The input and output negative voltage ratings may be exceeded if  
the input and output diode current ratings are observed.  
Note 3: Unused control inputs must be held HIGH or LOW. They may not  
float.  
DC Electrical Characteristics  
T
A = −40 °C to +85 °C  
VCC  
(V)  
Symbol  
Parameter  
Units  
Conditions  
Typ  
(Note 4)  
Min  
Max  
VIK  
Clamp Diode Voltage  
4.5  
4.0–5.5  
4.0–5.5  
5.5  
1.2  
V
V
IIN = −18mA  
VIH  
VIL  
II  
HIGH Level Input Voltage  
LOW Level Input Voltage  
Input Leakage Current  
2.0  
0.8  
±1.0  
10  
±1.0  
7
V
µA  
µA  
µA  
0 VIN 5.5V  
IN = 5.5V  
0 A, B VCC  
0
V
IOFF  
RON  
OFF-STATE Leakage Current  
Switch On Resistance  
(Note 5)  
5.5  
4.5  
4
4
V
V
V
V
V
IN = 0V, IIN = 64mA  
4.5  
7
IN = 0V, IIN = 30mA  
4.5  
8
12  
20  
3
IN = 2.4V, IIN = 15mA  
IN = 2.4V, IIN = 15mA  
IN = VCC or GND, IOUT = 0  
4.0  
14  
ICC  
Quiescent Supply Current  
Increase in ICC per Input  
5.5  
µA  
mA  
ICC  
5.5  
2.5  
One input at 3.4V  
Other inputs at VCC or GND  
Note 4: Typical values are at VCC = 5.0V and TA = +25°C  
Note 5: Measured by the voltage drop between A and B pins at the indicated current through the switch. On resistance is determined by the lower of the  
voltages on the two (A or B) pins.  
www.fairchildsemi.com  
2
AC Electrical Characteristics  
T
A = −40 °C to +85 °C,  
L = 50pF, RU = RD = 500Ω  
CC = 4.5 5.5V CC = 4.0V  
C
Symbol  
Parameter  
Units  
Conditions  
Figure No.  
V
V
Min  
Max  
Min  
Max  
t
PHL, tPLH  
Prop Delay Bus to Bus (Note 6)  
Prop Delay S to Bus  
0.25  
0.25  
ns  
ns  
ns  
VI = OPEN  
Figure 1  
Figure 2  
tPHL, tPLH  
PZH, tPZL  
1.5  
1.5  
7.0  
7.5  
7.0  
8.0  
VI = OPEN  
Figure 1  
Figure 2  
t
Output Enable Time, S to A or B  
VI = 7V for tPZL  
Figure 1  
Figure 2  
VI = OPEN for tPZH  
VI = 7V for tPLZ  
tPHZ, tPLZ  
Output Disable Time S to A or B  
1.0  
8.5  
9.0  
ns  
Figure 1  
Figure 2  
VI = OPEN for tPHZ  
Note 6: This parameter is guaranteed by design but is not tested. The bus switch contributes no propagation delay other than the RC delay of the typical On  
resistance of the switch and the 50pF load capacitance, when driven by an ideal voltage source (zero output impedance).  
Capacitance (Note 7)  
Symbol  
CIN  
CI/O  
Parameter  
Typ  
Max  
Units  
Conditions  
CC = 5.0V  
CC = 5.0V,  
Control pin Input Capacitance  
Input/Output Capacitance  
3
pF  
pF  
V
V
10  
S0, S1, and S2 = GND  
Note 7: TA = +25°C, f = 1 MHz, Capacitance is characterized but not tested.  
AC Loading and Waveforms  
Note: Input driven by 50 source terminated in 50 Ω  
Note: CL includes load and stray capacitance  
Note: Input PRR = 1.0 MHz, tW = 500 ns  
FIGURE 1. AC Test Circuit  
FIGURE 2. AC Waveforms  
3
www.fairchildsemi.com  
Physical Dimensions inches (millimeters) unless otherwise noted  
48-Lead Small Shrink Outline Package (SSOP), JEDEC MO-118, 0.300 Wide  
Package Number MS48A  
www.fairchildsemi.com  
4
Physical Dimensions inches (millimeters) unless otherwise noted (Continued)  
48-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 6.1mm Wide  
Package Number MTD48  
Technology Description  
The Fairchild Switch family derives from and embodies Fairchild’s proven switch technology used for several years in its  
74LVX3L384 (FST3384) bus switch product.  
Fairchild does not assume any responsibility for use of any circuitry described, no circuit patent licenses are implied and  
Fairchild reserves the right at any time without notice to change said circuitry and specifications.  
LIFE SUPPORT POLICY  
FAIRCHILD’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT  
DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT OF FAIRCHILD  
SEMICONDUCTOR CORPORATION. As used herein:  
1. Life support devices or systems are devices or systems  
which, (a) are intended for surgical implant into the  
body, or (b) support or sustain life, and (c) whose failure  
to perform when properly used in accordance with  
instructions for use provided in the labeling, can be rea-  
sonably expected to result in a significant injury to the  
user.  
2. A critical component in any component of a life support  
device or system whose failure to perform can be rea-  
sonably expected to cause the failure of the life support  
device or system, or to affect its safety or effectiveness.  
www.fairchildsemi.com  
5
www.fairchildsemi.com  
November 1998  
Revised December 1999  
FST16210  
20-Bit Bus Switch  
General Description  
Features  
The Fairchild Switch FST16210 provides 20-Bits of high-  
speed CMOS TTL-compatible bus switching. The low on  
resistance of the switch allows inputs to be connected to  
outputs without adding propagation delay or generating  
additional ground bounce noise.  
4switch connection between two ports.  
Minimal propagation delay through the switch.  
Low lCC  
.
Zero bounce in flow-through mode.  
Control inputs compatible with TTL level.  
The device is organized as a 10-bit or 20-Bit bus switch.  
When OE1 is LOW, the switch is ON and Port 1A is con-  
nected to Port 1B. When OE2 is LOW, Port 2A is connected  
to Port 2B.  
Ordering Code:  
Order Number Package Number  
Package Description  
FST16210MTD  
MTD48  
48-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 6.1mm Wide  
Devices also available in Tape and Reel. Specify by appending the suffix letter “X” to the ordering code.  
Connection Diagram  
Logic Diagram  
Truth Table  
Pin Descriptions  
Inputs  
Inputs/Outputs  
Pin Name  
Description  
OE1  
OE2  
1A, 1B  
2A, 2B  
L
L
L
H
L
1A = 1B  
2A = 2B  
OE1, OE2  
1A, 2A  
Bus Switch Enables  
Bus A  
1A = 1B  
Z
2A = 2B  
Z
H
H
Z
Z
1B, 2B  
Bus B  
H
© 1999 Fairchild Semiconductor Corporation  
DS500193  
www.fairchildsemi.com  
 
Absolute Maximum Ratings(Note 1)  
Recommended Operating  
Conditions (Note 3)  
Supply Voltage (VCC  
)
0.5V to +7.0V  
0.5V to +7.0V  
0.5V to +7.0V  
50mA  
DC Switch Voltage (VS)  
Power Supply Operating (VCC)  
4.0V to 5.5V  
0V to 5.5V  
0V to 5.5V  
DC Input Voltage (VIN) (Note 2)  
DC Input Diode Current (lIK) VIN<0V  
DC Output (IOUT) Sink Current  
Input Voltage (VIN  
)
Output Voltage (VOUT  
)
128mA  
Input Rise and Fall Time (tr, tf)  
Switch Control Input  
DC VCC/GND Current (ICC/IGND  
)
+/100mA  
0nS/V to 5nS/V  
0nS/V to DC  
Storage Temperature Range (TSTG  
)
65°C to +150 °C  
Switch I/O  
Free Air Operating Temperature (TA)  
-40 °C to +85 °C  
Note 1: The “Absolute Maximum Ratings” are those values beyond which  
the safety of the device cannot be guaranteed. The device should not be  
operated at these limits. The parametric values defined in the Electrical  
Characteristics tables are not guaranteed at the absolute maximum rating.  
The “Recommended Operating Conditions” table will define the conditions  
for actual device operation.  
Note 2: The input and output negative voltage ratings may be exceeded if  
the input and output diode current ratings are observed.  
Note 3: Unused control inputs must be held high or low. They may not float.  
DC Electrical Characteristics  
T
A = −40 °C to +85 °C  
VCC  
(V)  
Symbol  
Parameter  
Units  
Conditions  
Typ  
Min  
Max  
(Note 4)  
VIK  
Clamp Diode Voltage  
4.5  
4.0–5.5  
4.0–5.5  
5.5  
1.2  
V
V
IIN = −18mA  
VIH  
VIL  
II  
HIGH Level Input Voltage  
LOW Level Input Voltage  
Input Leakage Current  
2.0  
0.8  
±1.0  
10  
±1.0  
7
V
µA  
µA  
µA  
0VIN 5.5V  
IN = 5.5V  
0 A, B VCC  
0
V
IOZ  
OFF-STATE Leakage Current  
Switch On Resistance  
(Note 5)  
5.5  
RON  
4.5  
4
4
V
V
V
V
V
IN = 0V, IIN = 64mA  
4.5  
7
IN = 0V, IIN = 30mA  
4.5  
8
12  
20  
3
IN = 2.4V, IIN = 15mA  
IN = 2.4V, IIN = 15mA  
IN = VCC or GND, IOUT = 0  
4.0  
11  
ICC  
Quiescent Supply Current  
Increase in ICC per Input  
5.5  
µA  
mA  
ICC  
5.5  
2.5  
One input at 3.4V  
Other inputs at VCC or GND  
Note 4: Typical values are at VCC = 5.0V and TA = +25°C  
Note 5: Measured by the voltage drop between A and B pins at the indicated current through the switch. On resistance is determined by the lower of the  
voltages on the two (A or B) pins.  
www.fairchildsemi.com  
2
AC Electrical Characteristics  
T
A = −40 °C to +85 °C,  
L = 50pF, RU = RD = 500Ω  
CC = 4.5 – 5.5V CC = 4.0V  
C
Symbol  
Parameter  
Units  
Conditions  
Figure No.  
V
V
Min  
Max  
Min  
Max  
t
PHL,tPLH  
Prop Delay Bus to Bus  
(Note 6)  
0.25  
0.25  
ns  
ns  
VI = OPEN  
Figure 1,  
Figure 2  
tPZH, tPZL  
Output Enable Time  
1.5  
1.5  
6.0  
7.0  
6.5  
7.2  
VI = 7V for tPZL  
Figure 1,  
Figure 2  
VI = OPEN for tPZH  
VI = 7V for tPLZ  
tPHZ, tPLZ  
Output Disable Time  
ns  
Figure 1,  
Figure 2  
VI = OPEN for tPHZ  
Note 6: This parameter is guaranteed by design but is not tested. The bus switch contributes no propagation delay other than the RC delay of the typical On  
resistance of the switch and the 50pF load capacitance, when driven by an ideal voltage source (zero output impedance).  
Capacitance (Note 7)  
Symbol  
CIN  
CI/O  
Parameter  
Typ  
Max  
Units  
Conditions  
CC = 5.0V  
VCC, OE = 5.0V  
Control pin Input Capacitance  
Input/Output Capacitance  
3
6
pF  
pF  
V
Note 7: TA = +25°C, f = 1 MHz, Capacitance is characterized but not tested.  
AC Loading and Waveforms  
Note: Input driven by 50 source terminated in 50 Ω  
Note: CL includes load and stray capacitance  
Note: Input PRR = 1.0 MHz, tW = 500 ns  
FIGURE 1. AC Test Circuit  
FIGURE 2. AC Waveforms  
3
www.fairchildsemi.com  
Physical Dimensions inches (millimeters) unless otherwise noted  
48-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 6.1mm Wide  
Package Number MTD48  
Technology Description  
The Fairchild Switch family derives from and embodies Fairchild’s proven switch technology used for several years in its  
74LVX3L384(FST3384) bus switch product.  
Fairchild does not assume any responsibility for use of any circuitry described, no circuit patent licenses are implied and  
Fairchild reserves the right at any time without notice to change said circuitry and specifications.  
LIFE SUPPORT POLICY  
FAIRCHILD’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT  
DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT OF FAIRCHILD  
SEMICONDUCTOR CORPORATION. As used herein:  
1. Life support devices or systems are devices or systems  
which, (a) are intended for surgical implant into the  
body, or (b) support or sustain life, and (c) whose failure  
to perform when properly used in accordance with  
instructions for use provided in the labeling, can be rea-  
sonably expected to result in a significant injury to the  
user.  
2. A critical component in any component of a life support  
device or system whose failure to perform can be rea-  
sonably expected to cause the failure of the life support  
device or system, or to affect its safety or effectiveness.  
www.fairchildsemi.com  
www.fairchildsemi.com  
4
July 1997  
Revised December 1999  
FST16211  
24-Bit Bus Switch  
General Description  
Features  
The Fairchild Switch FST16211 provides 24-bits of high-  
speed CMOS TTL-compatible bus switching. The low on  
resistance of the switch allows inputs to be connected to  
outputs without adding propagation delay or generating  
additional ground bounce noise.  
4switch connection between two ports.  
Minimal propagation delay through the switch.  
Low lCC  
.
Zero bounce in flow-through mode.  
Control inputs compatible with TTL level.  
The device is organized as a 12-bit or 24-bit bus switch.  
When OE1 is LOW, the switch is ON and Port 1A is con-  
nected to Port 1B. When OE2 is LOW, Port 2A is connected  
to Port 2B.  
Ordering Code:  
Order Number  
FST16211MEA  
FST16211MTD  
Package Number  
MS56A  
Package Description  
56-Lead Shrink Small Outline Package (SSOP), JEDEC MO-118, 0.300 Wide  
56-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 6.1mm Wide  
MTD56  
Devices also available in Tape and Reel. Specify by appending the suffix letter “X” to the ordering code.  
Logic Diagram  
Connection Diagram  
Truth Table  
Inputs  
Inputs/Outputs  
Pin Descriptions  
OE1  
OE2  
1A, 1B  
2A, 2B  
Pin Name  
Description  
L
L
L
H
L
1A = 1B  
2A = 2B  
1A = 1B  
Z
2A = 2B  
Z
OE1, OE2  
1A, 2A  
Bus Switch Enables  
Bus A  
H
H
Z
Z
H
1B, 2B  
Bus B  
© 1999 Fairchild Semiconductor Corporation  
DS500037  
www.fairchildsemi.com  
 
Absolute Maximum Ratings(Note 1)  
Recommended Operating  
Conditions (Note 3)  
Supply Voltage (VCC  
)
0.5V to +7.0V  
0.5V to +7.0V  
0.5V to +7.0V  
50mA  
DC Switch Voltage (VS)  
Power Supply Operating (VCC)  
4.0V to 5.5V  
0V to 5.5V  
0V to 5.5V  
DC Input Voltage (VIN) (Note 2)  
DC Input Diode Current (lIK) VIN<0V  
DC Output (IOUT) Sink Current  
Input Voltage (VIN  
)
Output Voltage (VOUT  
)
128mA  
Input Rise and Fall Time (tr, tf)  
Switch Control Input  
DC VCC/GND Current (ICC/IGND  
)
+/100mA  
0nS/V to 5nS/V  
0nS/V to DC  
Storage Temperature Range (TSTG  
)
65°C to +150 °C  
Switch I/O  
Free Air Operating Temperature (TA)  
-40 °C to +85 °C  
Note 1: The “Absolute Maximum Ratings” are those values beyond which  
the safety of the device cannot be guaranteed. The device should not be  
operated at these limits. The parametric values defined in the Electrical  
Characteristics tables are not guaranteed at the absolute maximum rating.  
The “Recommended Operating Conditions” table will define the conditions  
for actual device operation.  
Note 2: The input and output negative voltage ratings may be exceeded if  
the input and output diode current ratings are observed.  
Note 3: Unused control inputs must be held HIGH or LOW. They may not  
float.  
DC Electrical Characteristics  
T
A = −40 °C to +85 °C  
VCC  
(V)  
Symbol  
Parameter  
Units  
Conditions  
Typ  
Min  
Max  
(Note 4)  
VIK  
Clamp Diode Voltage  
4.5  
4.0–5.5  
4.0–5.5  
5.5  
1.2  
V
V
IIN = −18mA  
VIH  
VIL  
II  
HIGH Level Input Voltage  
LOW Level Input Voltage  
Input Leakage Current  
2.0  
0.8  
±1.0  
10  
±1.0  
7
V
µA  
µA  
µA  
0VIN 5.5V  
IN = 5.5V  
0 A, B VCC  
0
V
IOZ  
OFF-STATE Leakage Current  
Switch On Resistance  
(Note 5)  
5.5  
RON  
4.5  
4
4
V
V
V
V
V
IN = 0V, IIN = 64mA  
4.5  
7
IN = 0V, IIN = 30mA  
4.5  
8
12  
20  
3
IN = 2.4V, IIN = 15mA  
IN = 2.4V, IIN = 15mA  
IN = VCC or GND, IOUT = 0  
4.0  
11  
ICC  
Quiescent Supply Current  
Increase in ICC per Input  
5.5  
µA  
mA  
ICC  
5.5  
2.5  
One input at 3.4V  
Other inputs at VCC or GND  
Note 4: Typical values are at VCC = 5.0V and TA = +25°C  
Note 5: Measured by the voltage drop between A and B pins at the indicated current through the switch. On resistance is determined by the lower of the  
voltages on the two (A or B) pins.  
www.fairchildsemi.com  
2
AC Electrical Characteristics  
T
A = −40 °C to +85 °C,  
L = 50pF, RU = RD = 500Ω  
CC = 4.5 – 5.5V CC = 4.0V  
C
Symbol  
Parameter  
Units  
Conditions  
Figure No.  
V
V
Min  
Max  
Min  
Max  
t
PHL,tPLH  
Prop Delay Bus to Bus (Note 6)  
Output Enable Time  
0.25  
0.25  
ns  
ns  
VI = OPEN  
Figure 1  
Figure 2  
tPZH, tPZL  
1.5  
1.5  
6.0  
7.0  
6.5  
7.2  
VI = 7V for tPZL  
Figure 1  
Figure 2  
VI = OPEN for tPZH  
VI = 7V for tPLZ  
tPHZ, tPLZ  
Output Disable Time  
ns  
Figure 1  
Figure 2  
VI = OPEN for tPHZ  
Note 6: This parameter is guaranteed by design but is not tested. The bus switch contributes no propagation delay other than the RC delay of the typical On  
resistance of the switch and the 50pF load capacitance, when driven by an ideal voltage source (zero output impedance).  
Capacitance (Note 7)  
Symbol  
Parameter  
Control pin Input Capacitance  
Input/Output Capacitance  
Typ  
3
Max  
Units  
pF  
Conditions  
CC = 5.0V  
VCC, OE = 5.0V  
CIN  
V
CI/O  
6
pF  
Note 7: TA = +25°C, f = 1 MHz, Capacitance is characterized but not tested.  
AC Loading and Waveforms  
Note: Input driven by 50 source terminated in 50 Ω  
Note: CL includes load and stray capacitance  
Note: Input PRR = 1.0 MHz, tW = 500 ns  
FIGURE 1. AC Test Circuit  
FIGURE 2. AC Waveforms  
3
www.fairchildsemi.com  
Physical Dimensions inches (millimeters) unless otherwise noted  
56-Lead Shrink Small Outline Package (SSOP), JEDEC MO-118, 0.300 Wide  
Package Number MS56A  
www.fairchildsemi.com  
4
Physical Dimensions inches (millimeters) unless otherwise noted (Continued)  
56-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 6.1mm Wide  
Package Number MTD56  
Technology Description  
The Fairchild Switch family derives from and embodies Fairchild’s proven switch technology used for several years in its  
74LVX3L384 (FST3384) bus switch product.  
Fairchild does not assume any responsibility for use of any circuitry described, no circuit patent licenses are implied and  
Fairchild reserves the right at any time without notice to change said circuitry and specifications.  
LIFE SUPPORT POLICY  
FAIRCHILD’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT  
DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT OF FAIRCHILD  
SEMICONDUCTOR CORPORATION. As used herein:  
1. Life support devices or systems are devices or systems  
which, (a) are intended for surgical implant into the  
body, or (b) support or sustain life, and (c) whose failure  
to perform when properly used in accordance with  
instructions for use provided in the labeling, can be rea-  
sonably expected to result in a significant injury to the  
user.  
2. A critical component in any component of a life support  
device or system whose failure to perform can be rea-  
sonably expected to cause the failure of the life support  
device or system, or to affect its safety or effectiveness.  
www.fairchildsemi.com  
5
www.fairchildsemi.com  
July 1997  
Revised December 1999  
FST16212  
24-Bit Bus Exchange Switch  
General Description  
Features  
The Fairchild Switch FST16212 provides 24-bits of high-  
speed CMOS TTL-compatible bus switching or exchang-  
ing. The low on resistance of the switch allows inputs to be  
connected to outputs without adding propagation delay or  
generating additional ground bounce noise.  
4switch connection between two ports.  
Minimal propagation delay through the switch.  
Low lCC  
.
Zero bounce in flow-through mode.  
Control inputs compatible with TTL level.  
The device operates as a 24-bit bus switch or a 12-bit bus  
exchanger, which allows data exchange between the four  
signal ports via the data-select terminals.  
Ordering Code:  
Order Number  
FST16212MEA  
FST16212MTD  
Package Number  
MS56A  
Package Description  
56-Lead Shrink Small Outline Package (SSOP), JEDEC MO-118, 0.300 Wide  
56-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 6.1mm Wide  
MTD56  
Devices also available in Tape and Reel. Specify by appending the suffix letter “X” to the ordering code.  
Logic Diagram  
Connection Diagram  
Truth Table  
A1  
A2  
S2  
L
S1  
L
S0  
L
Function  
Z
B1  
B2  
Z
Z
Z
Disconnect  
L
L
H
L
A1 = B1  
A1 = B2  
A2 = B1  
A2 = B2  
L
H
H
L
Z
Pin Descriptions  
L
H
L
B1  
B2  
Z
Pin Name  
S2, S1, S0  
A1, A2  
Description  
Data-select inputs  
Bus A  
H
H
H
H
Z
L
H
L
Z
Disconnect  
H
H
B1  
B2  
B2  
B1  
A
A
1 = B1, A2 = B2  
1 = B2, A2 = B1  
B1, B2  
Bus B  
H
© 1999 Fairchild Semiconductor Corporation  
DS500038  
www.fairchildsemi.com  
 
Absolute Maximum Ratings(Note 1)  
Recommended Operating  
Conditions (Note 3)  
Supply Voltage (VCC  
)
0.5V to +7.0V  
0.5V to +7.0V  
0.5V to +7.0V  
50mA  
DC Switch Voltage (VS)  
Power Supply Operating (VCC  
Input Voltage (VIN  
Output Voltage (VOUT  
)
4.0V to 5.5V  
0V to 5.5V  
0V to 5.5V  
DC Input Voltage (VIN) (Note 2)  
DC Input Diode Current (lIK) VIN<0V  
DC Output (IOUT) Sink Current  
)
)
128mA  
Input Rise and Fall Time (tr, tf)  
Switch Control Input  
DC VCC/GND Current (ICC/IGND  
)
+/100mA  
0nS/V to 5nS/V  
0nS/V to DC  
Storage Temperature Range (TSTG  
)
65°C to +150 °C  
Switch I/O  
Free Air Operating Temperature (TA)  
40 °C to +85 °C  
Note 1: The “Absolute Maximum Ratings” are those values beyond which  
the safety of the device cannot be guaranteed. The device should not be  
operated at these limits. The parametric values defined in the Electrical  
Characteristics tables are not guaranteed at the absolute maximum rating.  
The “Recommended Operating Conditions” table will define the conditions  
for actual device operation.  
Note 2: The input and output negative voltage ratings may be exceeded if  
the input and output diode current ratings are observed.  
Note 3: Unused control inputs must be held high or low. They may not float.  
DC Electrical Characteristics  
T
A = −40 °C to +85 °C  
VCC  
(V)  
Symbol  
Parameter  
Units  
Conditions  
Typ  
Min  
Max  
(Note 4)  
VIK  
Clamp Diode Voltage  
4.5  
4.0–5.5  
4.0–5.5  
5.5  
1.2  
V
V
IIN = −18mA  
VIH  
VIL  
II  
HIGH Level Input Voltage  
LOW Level Input Voltage  
Input Leakage Current  
2.0  
0.8  
±1.0  
10  
±1.0  
7
V
µA  
µA  
µA  
0VIN 5.5V  
IN = 5.5V  
0 A, B VCC  
0
V
IOZ  
OFF-STATE Leakage Current  
Switch On Resistance  
(Note 5)  
5.5  
RON  
4.5  
4
4
V
V
V
V
V
IN = 0V, IIN = 64mA  
4.5  
7
IN = 0V, IIN = 30mA  
4.5  
8
12  
20  
3
IN = 2.4V, IIN = 15mA  
IN = 2.4V, IIN = 15mA  
IN = VCC or GND, IOUT = 0  
4.0  
14  
ICC  
Quiescent Supply Current  
Increase in ICC per Input  
5.5  
µA  
mA  
ICC  
5.5  
2.5  
One input at 3.4V  
Other inputs at VCC or GND  
Note 4: Typical values are at VCC = 5.0V and TA=+25°C  
Note 5: Measured by the voltage drop between A and B pins at the indicated current through the switch. On resistance is determined by the lower of the  
voltages on the two (A or B) pins.  
www.fairchildsemi.com  
2
AC Electrical Characteristics  
T
A = −40 °C to +85 °C,  
L = 50pF, RU = RD = 500Ω  
VCC = 4.5 – 5.5V CC = 4.0V  
C
Symbol  
Parameter  
Units  
Conditions  
Figure No.  
V
Min  
Max  
Min  
Max  
t
PHL,tPLH  
Prop Delay Bus to Bus (Note 6)  
Prop Delay S to Bus  
0.25  
0.25  
ns  
ns  
ns  
VI = OPEN  
Figure 1  
Figure 2  
tPHL,tPLH  
PZH, tPZL  
1.5  
1.5  
7.0  
7.5  
7.5  
8.0  
VI = OPEN  
Figure 1  
Figure 2  
t
Output Enable Time, S to A or B  
VI = 7V for tPZL  
Figure 1  
Figure 2  
VI = OPEN for tPZH  
VI = 7V for tPLZ  
tPHZ, tPLZ  
Output Disable Time S to A or B  
1.0  
8.5  
9.0  
ns  
Figure 1  
Figure 2  
VI = OPEN for tPHZ  
Note 6: This parameter is guaranteed by design but is not tested. The bus switch contributes no propagation delay other than the RC delay of the typical On  
resistance of the switch and the 50pF load capacitance, when driven by an ideal voltage source (zero output impedance).  
Capacitance (Note 7)  
Symbol  
CIN  
CI/O  
Parameter  
Typ  
Max  
Units  
Conditions  
Control pin Input Capacitance  
Input/Output Capacitance  
3
pF  
pF  
V
CC = 5.0V  
CC = 5.0V, S0, S1, or S2 =GND  
10  
V
Note 7: TA = +25°C, f = 1 MHz, Capacitance is characterized but not tested.  
AC Loading and Waveforms  
Note: Input driven by 50 source terminated in 50 Ω  
Note: CL includes load and stray capacitance  
Note Input PRR = 1.0 MHz, tW = 500 ns  
FIGURE 1. AC Test Circuit  
FIGURE 2. AC Waveforms  
3
www.fairchildsemi.com  
Physical Dimensions inches (millimeters) unless otherwise noted  
56-Lead Shrink Small Outline Package (SSOP), JEDEC MO-118, 0.300 Wide  
Package Number MS56A  
www.fairchildsemi.com  
4
Physical Dimensions inches (millimeters) unless otherwise noted (Continued)  
56-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 6.1mm Wide  
Package Number MTD56  
Technology Description  
The Fairchild Switch family derives from and embodies Fairchild’s proven switch technology used for several years in its  
74LVX3L384 (FST3384) bus switch product.  
Fairchild does not assume any responsibility for use of any circuitry described, no circuit patent licenses are implied and  
Fairchild reserves the right at any time without notice to change said circuitry and specifications.  
LIFE SUPPORT POLICY  
FAIRCHILD’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT  
DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT OF FAIRCHILD  
SEMICONDUCTOR CORPORATION. As used herein:  
1. Life support devices or systems are devices or systems  
which, (a) are intended for surgical implant into the  
body, or (b) support or sustain life, and (c) whose failure  
to perform when properly used in accordance with  
instructions for use provided in the labeling, can be rea-  
sonably expected to result in a significant injury to the  
user.  
2. A critical component in any component of a life support  
device or system whose failure to perform can be rea-  
sonably expected to cause the failure of the life support  
device or system, or to affect its safety or effectiveness.  
www.fairchildsemi.com  
5
www.fairchildsemi.com  
July 1997  
Revised December 1999  
FST16213  
24-Bit Bus Exchange Switch  
General Description  
Features  
The Fairchild Switch FST16213 provides 24-bits of high-  
speed CMOS TTL-compatible bus switching or exchang-  
ing. The low on resistance of the switch allows inputs to be  
connected to outputs without adding propagation delay or  
generating additional ground bounce noise.  
4switch connection between two ports.  
Minimal propagation delay through the switch.  
Low lCC  
.
Zero bounce in flow-through mode.  
Control inputs compatible with TTL level.  
The device operates as a 24-bit bus switch or a 12-bit bus  
exchanger, which allows data exchange between the four  
signal ports via the data-select terminals.  
Ordering Code:  
Order Number  
FST16213MEA  
FST16213MTD  
Package Number  
MS56A  
Package Description  
56-Lead Shrink Small Outline Package (SSOP), JEDEC MO-118, 0.300 Wide  
56-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 6.1mm Wide  
MTD56  
Devices also available in Tape and Reel. Specify by appending the suffix letter “X” to the ordering code.  
Logic Diagram  
© 1999 Fairchild Semiconductor Corporation  
DS500039  
www.fairchildsemi.com  
 
Connection Diagram  
Pin Descriptions  
Pin Name  
S2, S1, S0  
A1, A2  
Description  
Data-select inputs  
Bus A  
B1, B2  
Bus B  
Truth Table  
S2 S1 S0  
A1  
A2  
Function  
L
L
L
L
L
H
L
Z
B1  
B2  
Z
Z
Z
Disconnect  
A
A
A
A
1 = B1  
1 = B2  
2 = B1  
2 = B2  
L
H
H
L
Z
L
H
L
B1  
B2  
H
H
H
H
Z
L
H
L
A2 and B2 A1 and B2  
A1 = A2 = B2  
H
H
B1  
B2  
B2  
B1  
A1 = B1, A2 = B2  
A1 = B2, A2 = B1  
H
www.fairchildsemi.com  
2
Absolute Maximum Ratings(Note 1)  
Recommended Operating  
Conditions (Note 3)  
Supply Voltage (VCC  
)
0.5V to +7.0V  
0.5V to +7.0V  
0.5V to +7.0V  
50mA  
DC Switch Voltage (VS)  
Power Supply Operating (VCC  
Input Voltage (VIN  
Output Voltage (VOUT  
)
4.0V to 5.5V  
0V to 5.5V  
0V to 5.5V  
DC Input Voltage (VIN) (Note 2)  
DC Input Diode Current (lIK) VIN<0V  
DC Output (IOUT) Sink Current  
)
)
128mA  
Input Rise and Fall Time (tr, tf)  
Switch Control Input  
DC VCC/GND Current (ICC/IGND  
)
+/100mA  
0nS/V to 5nS/V  
0nS/V to DC  
Storage Temperature Range (TSTG  
)
65°C to +150 °C  
Switch I/O  
Free Air Operating Temperature (TA)  
40 °C to +85 °C  
Note 1: The “Absolute Maximum Ratings” are those values beyond which  
the safety of the device cannot be guaranteed. The device should not be  
operated at these limits. The parametric values defined in the Electrical  
Characteristics tables are not guaranteed at the absolute maximum rating.  
The “Recommended Operating Conditions” table will define the conditions  
for actual device operation.  
Note 2: The input and output negative voltage ratings may be exceeded if  
the input and output diode current ratings are observed.  
Note 3: Unused control inputs must be held high or low. They may not float.  
DC Electrical Characteristics  
T
A = −40 °C to +85 °C  
VCC  
(V)  
Symbol  
Parameter  
Units  
Conditions  
Typ  
Min  
Max  
(Note 4)  
VIK  
Clamp Diode Voltage  
4.5  
4.0–5.5  
4.0–5.5  
5.5  
1.2  
V
V
IIN = −18mA  
VIH  
VIL  
II  
HIGH Level Input Voltage  
LOW Level Input Voltage  
Input Leakage Current  
2.0  
0.8  
±1.0  
10  
±1.0  
7
V
µA  
µA  
µA  
0VIN 5.5V  
IN = 5.5V  
0 A, B VCC  
0
V
IOZ  
OFF-STATE Leakage Current  
Switch On Resistance  
A to B or B to A  
5.5  
RON  
4.5  
4
V
V
V
V
V
V
V
V
V
IN = 0V, IIN = 64mA  
4.5  
4
7
IN = 0V, IIN = 30mA  
IN = 2.4V, IIN = 15mA  
IN = 2.4V, IIN = 15mA  
IN = 0V, IIN = 64mA  
IN = 0V, IIN = 30mA  
IN = 2.4V, IIN = 15mA  
IN = 2.4V, IIN = 15mA  
IN = VCC or GND, IOUT = 0  
(Note 5)  
4.5  
8
12  
20  
14  
14  
22  
30  
3
4.0  
11  
10  
10  
16  
22  
Switch On Resistance  
A1 to A2  
4.5  
4.5  
(Note 5)  
4.5  
4.0  
ICC  
Quiescent Supply Current  
Increase in ICC per Input  
5.5  
µA  
mA  
ICC  
5.5  
2.5  
One input at 3.4V  
Other inputs at VCC or GND  
Note 4: Typical values are at VCC = 5.0V and TA = +25°C  
Note 5: Measured by the voltage drop between A and B pins at the indicated current through the switch. On resistance is determined by the lower of the  
voltages on the two (A or B) pins.  
3
www.fairchildsemi.com  
AC Electrical Characteristics  
T
A = −40 °C to +85 °C,  
L = 50pF, RU = RD = 500Ω  
CC = 4.5 5.5V CC = 4.0V  
C
Symbol  
Parameter  
Units  
Conditions  
Figure No.  
V
V
Min  
Max  
Min  
Max  
t
PHL,tPLH  
tPHL,tPLH  
PZH, tPZL  
Prop Delay Bus to Bus (Note 6)  
Prop Delay A1 to A2  
0.25  
0.25  
ns  
ns  
ns  
VI = OPEN  
Figure 1  
Figure 2  
0.5  
7.5  
0.5  
8.0  
VI = OPEN  
Figure 1  
Figure 2  
t
Output Enable Time, S to A or B  
1.5  
1.0  
1.5  
1.5  
VI = 7V for tPZL  
Figure 1  
Figure 2  
VI = OPEN for tPZH  
VI = 7V for tPLZ  
tPHZ, tPLZ  
tPZH, tPZL  
tPHZ, tPLZ  
Output Disable Time S to A or B  
8.5  
9.5  
9.0  
9.0  
10.0  
10.0  
ns  
ns  
ns  
Figure 1  
Figure 2  
VI = OPEN for tPHZ  
VI = 7V for tPZL  
Output Enable Time, S0 to A2 and B2  
Output Disable Time, S0 to A2 and B2  
Figure 1  
Figure 2  
VI = OPEN for tPZH  
VI = 7V for tPLZ  
Figure 1  
Figure 2  
VI = OPEN for tPHZ  
Note 6: This parameter is guaranteed by design but is not tested. The bus switch contributes no propagation delay other than the RC delay of the typical On  
resistance of the switch and the 50pF load capacitance, when driven by an ideal voltage source (zero output impedance).  
Capacitance (Note 7)  
Symbol  
CIN  
CI/O  
Parameter  
Typ  
Max  
Units  
Conditions  
CC = 5.0V  
CC = 5.0V  
Control pin Input Capacitance  
Input/Output Capacitance  
3
pF  
pF  
V
V
10  
S0, S1, or S2 = GND  
Note 7: TA = +25°C, f = 1 MHz, Capacitance is characterized but not tested.  
AC Loading and Waveforms  
Note: Input driven by 50 source terminated in 50 Ω  
Note: CL includes load and stray capacitance  
Note: Input PRR = 1.0 MHz, tW = 500 ns  
FIGURE 1. AC Test Circuit  
FIGURE 2. AC Waveforms  
www.fairchildsemi.com  
4
Physical Dimensions inches (millimeters) unless otherwise noted  
56-Lead Shrink Small Outline Package (SSOP), JEDEC MO-118, 0.300 Wide  
Package Number MS56A  
5
www.fairchildsemi.com  
Physical Dimensions inches (millimeters) unless otherwise noted (Continued)  
56-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 6.1mm Wide  
Package Number MTD56  
Technology Description  
The Fairchild Switch family derives from and embodies Fairchild’s proven switch technology used for several years in its  
74LVX3L384 (FST3384) bus switch product.  
Fairchild does not assume any responsibility for use of any circuitry described, no circuit patent licenses are implied and  
Fairchild reserves the right at any time without notice to change said circuitry and specifications.  
LIFE SUPPORT POLICY  
FAIRCHILD’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT  
DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT OF FAIRCHILD  
SEMICONDUCTOR CORPORATION. As used herein:  
1. Life support devices or systems are devices or systems  
which, (a) are intended for surgical implant into the  
body, or (b) support or sustain life, and (c) whose failure  
to perform when properly used in accordance with  
instructions for use provided in the labeling, can be rea-  
sonably expected to result in a significant injury to the  
user.  
2. A critical component in any component of a life support  
device or system whose failure to perform can be rea-  
sonably expected to cause the failure of the life support  
device or system, or to affect its safety or effectiveness.  
www.fairchildsemi.com  
www.fairchildsemi.com  
6
July 1997  
Revised December 1999  
FST16232  
Synchronous 16-Bit to 32-Bit  
Multiplexer/Demultiplexer Bus Switch  
General Description  
Features  
4switch connection between two ports.  
The Fairchild Switch FST16232 is a 16-bit to 32-bit high-  
speed CMOS TTL-compatible synchronous multiplexer/  
demultiplexer bus switch. The low on resistance of the  
switch allows inputs to be connected to outputs without  
adding propagation delay or generating additional ground  
bounce noise.  
Minimal propagation delay through the switch.  
Low lCC  
.
Zero bounce in flow-through mode.  
Control inputs compatible with TTL level.  
The device allows two separate datapaths to be multi-  
plexed onto, or demultiplexed from, a single path. Two con-  
trol select pins (S1, S0) are synchronous and clocked on  
the rising edge of CLK when CLKEN is LOW.  
Ordering Code:  
Order Number  
FST16232MEA  
FST16232MTD  
Package Number  
MS56A  
Package Description  
56-Lead Shrink Small Outline Package (SSOP), JEDEC MO-118, 0.300 Wide  
56-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 6.1mm Wide  
MTD56  
Devices also available in Tape and Reel. Specify by appending the suffix letter “X” to the ordering code.  
Logic Diagram  
© 1999 Fairchild Semiconductor Corporation  
DS500054  
www.fairchildsemi.com  
 
Connection Diagram  
Pin Descriptions  
Pin Name  
S1, S0  
Description  
Control Pins  
Clock Input  
Clock Enable Input  
Bus A  
CLK  
CLKEN  
1A, 2A  
1B, 2B  
Bus B  
Truth Table  
Inputs  
Function  
S1  
S0  
CLK  
CLKEN  
X
L
X
L
X
H
L
L
L
L
Last State  
Disconnect  
A = B1 and A = B2  
A = B1  
L
H
L
H
H
H
A = B2  
www.fairchildsemi.com  
2
Absolute Maximum Ratings(Note 1)  
Recommended Operating  
Conditions (Note 3)  
Supply Voltage (VCC  
)
0.5V to +7.0V  
0.5V to +7.0V  
0.5V to +7.0V  
50mA  
DC Switch Voltage (VS)  
Power Supply Operating (VCC)  
4.0V to 5.5V  
0V to 5.5V  
0V to 5.5V  
DC Input Voltage (VIN)(Note 2)  
DC Input Diode Current (lIK) VIN<0V  
DC Output (IOUT) Sink Current  
Input Voltage (VIN  
)
Output Voltage (VOUT  
)
128mA  
Input Rise and Fall Time (tr, tf)  
Switch Control Input  
DC VCC/GND Current (ICC/IGND  
)
+/100mA  
0nS/V to 5nS/V  
0nS/V to DC  
Storage Temperature Range (TSTG  
)
65°C to +150 °C  
Switch I/O  
Free Air Operating Temperature (TA)  
40 °C to +85 °C  
Note 1: The “Absolute Maximum Ratings” are those values beyond which  
the safety of the device cannot be guaranteed. The device should not be  
operated at these limits. The parametric values defined in the Electrical  
Characteristics tables are not guaranteed at the absolute maximum rating.  
The “Recommended Operating Conditions” table will define the conditions  
for actual device operation.  
Note 2: The input and output negative voltage ratings may be exceeded if  
the input and output diode current ratings are observed.  
Note 3: Unused control inputs must be held HIGH or LOW. They may not  
float.  
DC Electrical Characteristics  
T
A = −40 °C to +85 °C  
VCC  
(V)  
Symbol  
Parameter  
Units  
Conditions  
Typ  
Min  
Max  
(Note 4)  
VIK  
Clamp Diode Voltage  
4.5  
4.0–5.5  
4.0–5.5  
5.5  
1.2  
V
V
IIN = −18mA  
VIH  
VIL  
II  
HIGH Level Input Voltage  
LOW Level Input Voltage  
Input Leakage Current  
2.0  
0.8  
±1.0  
10  
±1.0  
7
V
µA  
µA  
µA  
0VIN 5.5V  
IN = 5.5V  
0 A, B VCC  
0
V
IOFF  
RON  
OFF-STATE Leakage Current  
Switch On Resistance  
(Note 5)  
5.5  
4.5  
4
4
V
V
V
V
V
IN = 0V, IIN = 64mA  
4.5  
7
IN = 0V, IIN = 30mA  
4.5  
8
12  
20  
3
IN = 2.4V, IIN = 15mA  
IN = 2.4V, IIN = 15mA  
IN = VCC or GND, IOUT = 0  
4.0  
11  
ICC  
Quiescent Supply Current  
Increase in ICC per Input  
5.5  
µA  
mA  
ICC  
5.5  
2.5  
One input at 3.4V  
Other inputs at VCC or GND  
Note 4: Typical values are at VCC = 5.0V and TA = +25°C  
Note 5: Measured by the voltage drop between A and B pins at the indicated current through the switch. On resistance is determined by the lower of the  
voltages on the two (A or B) pins.  
3
www.fairchildsemi.com  
AC Electrical Characteristics  
T
A = −40 °C to +85 °C,  
L = 50pF, RU = RD = 500Ω  
CC = 4.5 – 5.5V CC = 4.0V  
C
Figure  
No.  
Symbol  
Parameter  
Units  
Conditions  
V
V
Min  
Max  
Min  
Max  
fMAX  
tPHL, tPLH  
PHL, tPLH  
Maximum Clock Frequency  
Prop Delay Bus to Bus (Note 6)  
Prop Delay CLK to B or A  
150  
150  
MHz  
ns  
VI = OPEN  
Figure 1  
Figure 2  
0.25  
6.3  
0.25  
6.0  
VI = OPEN  
Figure 1  
Figure 2  
t
2.0  
ns  
VI = OPEN  
Figure 1  
Figure 2  
tPZH, tPZL  
Output Enable Time  
CLK to A = B1 = B2  
Output Enable Time  
CLK to A or B1 or B2  
Output Disable Time  
CLK to A or B  
VI = 7V for tPZL  
,
Figure 1  
Figure 2  
1.7  
2.0  
8.5  
6.5  
8.5  
9.0  
6.5  
9.0  
ns  
ns  
ns  
VI = OPEN for tPZH  
VI = 7V for tPZL  
VI = OPEN for tPZH  
VI = 7V for tPLZ  
,
Figure 1  
Figure 2  
tPHZ, tPLZ  
,
Figure 1  
Figure 2  
1.0  
2.5  
VI = OPEN for tPHZ  
tS  
Setup Time S1, S0 before CLK ↑  
2.8  
Figure 1  
Figure 2  
ns  
Setup Time CLKEN before CLK ↑  
Hold Time S1, S0 after CLK ↑  
1.8  
1.0  
2.0  
1.0  
tH  
Figure 1  
Figure 2  
ns  
ns  
Hold Time CLKEN after CLK ↑  
1.5  
3.1  
1.5  
3.1  
tW  
Pulse Width  
Clock HIGH or LOW  
Figure 1  
Figure 2  
Note 6: This parameter is guaranteed by design but is not tested. The bus switch contributes no propagation delay other than the RC delay of the typical On  
resistance of the switch and the 50pF load capacitance, when driven by an ideal voltage source (zero output impedance).  
Capacitance (Note 7)  
Symbol  
Parameter  
Typ  
Max  
Units  
Conditions  
CIN  
Control pin Input Capacitance  
Input/Output Capacitance  
4
7
pF  
pF  
V
V
CC = 5.0V  
CC = 5.0V, S0, S1 = 0V  
CI/O  
Note 7: TA = +25°C, f = 1 MHz, Capacitance is characterized but not tested.  
AC Loading and Waveforms  
Note: Input driven by 50 source terminated in 50 Ω  
Note: CL includes load and stray capacitance  
Note: Input PRR = 1.0 MHz, tW = 500 ns  
FIGURE 1. AC Test Circuit  
FIGURE 2. AC Waveforms  
www.fairchildsemi.com  
4
Physical Dimensions inches (millimeters) unless otherwise noted  
56-Lead Shrink Small Outline Package (SSOP), JEDEC MO-118, 0.300 Wide  
Package Number MS56A  
5
www.fairchildsemi.com  
Physical Dimensions inches (millimeters) unless otherwise noted (Continued)  
56-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 6.1mm Wide  
Package Number MTD56  
Technology Description  
The Fairchild Switch family derives from and embodies Fairchild’s proven switch technology used for several years in its  
74LVX3L384 (FST3384) bus switch product.  
Fairchild does not assume any responsibility for use of any circuitry described, no circuit patent licenses are implied and  
Fairchild reserves the right at any time without notice to change said circuitry and specifications.  
LIFE SUPPORT POLICY  
FAIRCHILD’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT  
DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT OF FAIRCHILD  
SEMICONDUCTOR CORPORATION. As used herein:  
1. Life support devices or systems are devices or systems  
which, (a) are intended for surgical implant into the  
body, or (b) support or sustain life, and (c) whose failure  
to perform when properly used in accordance with  
instructions for use provided in the labeling, can be rea-  
sonably expected to result in a significant injury to the  
user.  
2. A critical component in any component of a life support  
device or system whose failure to perform can be rea-  
sonably expected to cause the failure of the life support  
device or system, or to affect its safety or effectiveness.  
www.fairchildsemi.com  
www.fairchildsemi.com  
6
September 1997  
Revised December 1999  
FST16233  
16-Bit to 32-Bit Multiplexer/Demultiplexer Bus Switch  
General Description  
Features  
The Fairchild Switch FST16233 is a 16-bit to 32-bit high-  
speed CMOS TTL-compatible multiplexer/demultiplexer  
bus switch. The low on resistance of the switch allows  
inputs to be connected to outputs without adding propaga-  
tion delay or generating additional ground bounce noise.  
4switch connection between two ports.  
Minimal propagation delay through the switch.  
Low lCC  
.
Zero bounce in flow-through mode.  
Control inputs compatible with TTL level.  
The device can be used in applications where two buses  
need to be addressed simultaneously. The FST16233 can  
be used as two 8-bit to 16-bit multiplexers or as one 16-bit  
to 32-bit multiplexer.  
Two select (SEL1, SEL0) and two test (TEST0, TEST1)  
inputs provide switch enable and multiplexer select control.  
The FST16233 is designed to prevent through-current  
when switching buses.  
Ordering Code:  
Order Number  
FST16233MEA  
FST16233MTD  
Package Number  
MS56A  
Package Description  
56-Lead Shrink Small Outline Package (SSOP), JEDEC MO-118, 0.300 Wide  
56-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 6.1mm Wide  
MTD56  
Devices also available in Tape and Reel. Specify by appending the suffix letter “X” to the ordering code.  
Logic Diagram  
© 1999 Fairchild Semiconductor Corporation  
DS500055  
www.fairchildsemi.com  
 
Connection Diagram  
Pin Descriptions  
Pin Name  
SEL0, SEL1  
TEST0, TEST1  
A
Description  
Select Inputs  
Test Inputs  
Bus A  
B1, B2  
Bus B  
Truth Table  
Inputs  
Function  
SEL  
L
TEST  
L
L
A = B1  
A = B2  
H
X
H
A = B1 and A = B2  
www.fairchildsemi.com  
2
Absolute Maximum Ratings(Note 1)  
Recommended Operating  
Conditions (Note 3)  
Supply Voltage (VCC  
)
0.5V to +7.0V  
0.5V to +7.0V  
0.5V to +7.0V  
50mA  
DC Switch Voltage (VS)  
Power Supply Operating (VCC  
Input Voltage (VIN  
Output Voltage (VOUT  
)
4.0V to 5.5V  
0V to 5.5V  
0V to 5.5V  
DC Input Voltage (VIN) (Note 2)  
DC Input Diode Current (lIK) VIN<0V  
DC Output (IOUT) Sink Current  
)
)
128mA  
Input Rise and Fall Time (tr, tf)  
Switch Control Input  
DC VCC/GND Current (ICC/IGND  
)
+/100mA  
0nS/V to 5nS/V  
0nS/V to DC  
Storage Temperature Range (TSTG  
)
65°C to +150 °C  
Switch I/O  
Free Air Operating Temperature (TA)  
40 °C to +85 °C  
Note 1: The “Absolute Maximum Ratings” are those values beyond which  
the safety of the device cannot be guaranteed. The device should not be  
operated at these limits. The parametric values defined in the Electrical  
Characteristics tables are not guaranteed at the absolute maximum rating.  
The “Recommended Operating Conditions” table will define the conditions  
for actual device operation.  
Note 2: The input and output negative voltage ratings may be exceeded if  
the input and output diode current ratings are observed.  
Note 3: Unused control inputs must be held HIGH or LOW. They may not  
float.  
DC Electrical Characteristics  
T
A = −40 °C to +85 °C  
VCC  
(V)  
Symbol  
Parameter  
Units  
Conditions  
Typ  
Min  
Max  
(Note 4)  
VIK  
Clamp Diode Voltage  
4.5  
4.0–5.5  
4.0–5.5  
5.5  
1.2  
V
V
IIN = −18mA  
VIH  
VIL  
II  
HIGH Level Input Voltage  
LOW Level Input Voltage  
Input Leakage Current  
2.0  
0.8  
±1.0  
10  
±1.0  
7
V
µA  
µA  
µA  
0VIN 5.5V  
IN = 5.5V  
0 A, B VCC  
0
V
IOFF  
RON  
OFF-STATE Leakage Current  
Switch On Resistance  
(Note 5)  
5.5  
4.5  
4
4
V
V
V
V
V
IN = 0V, IIN = 64mA  
4.5  
7
IN = 0V, IIN = 30mA  
4.5  
8
12  
20  
3
IN = 2.4V, IIN = 15mA  
IN = 2.4V, IIN = 15mA  
IN = VCC or GND, IOUT = 0  
4.0  
11  
ICC  
Quiescent Supply Current  
Increase in ICC per Input  
5.5  
µA  
mA  
ICC  
5.5  
2.5  
One input at 3.4V  
Other inputs at VCC or GND  
Note 4: Typical values are at VCC = 5.0V and TA = +25°C  
Note 5: Measured by the voltage drop between A and B pins at the indicated current through the switch. On resistance is determined by the lower of the  
voltages on the two (A or B) pins.  
3
www.fairchildsemi.com  
AC Electrical Characteristics  
T
A = −40 °C to +85 °C,  
L = 50pF, RU= RD = 500Ω  
CC = 4.5 5.5V CC = 4.0V  
C
Symbol  
Parameter  
Units  
Conditions  
Figure No.  
V
V
Min  
Max  
Min  
Max  
t
PHL, tPLH  
A or B, to B or A (Note 6)  
SEL to A  
0.25  
0.25  
ns  
ns  
ns  
VI = OPEN  
Figure 1  
Figure 2  
tPHL,tPLH  
PZH, tPZL  
1.5  
1.0  
6.1  
6.5  
6.8  
7.2  
VI = OPEN  
Figure 1  
Figure 2  
t
Output Enable Time,  
SEL or TEST to B  
Output Disable Time,  
SEL or TEST to B  
VI = 7V for tPZL  
,
Figure 1  
Figure 2  
VI = OPEN for tPZH  
VI = 7V for tPLZ  
VI = OPEN for tPHZ  
tPHZ, tPLZ  
1.5  
7.8  
8.5  
ns  
,
Figure 1  
Figure 2  
Note 6: This parameter is guaranteed by design but is not tested. The bus switch contributes no propagation delay other than the RC delay of the typical On  
resistance of the switch and the 50pF load capacitance, when driven by an ideal voltage source (zero output impedance).  
Capacitance (Note 7)  
Symbol  
CIN  
CI/O  
Parameter  
Typ  
Max  
Units  
Conditions  
CC = 5.0V  
CC = 5.0V, Switch OFF  
Control pin Input Capacitance  
Input/Output Capacitance  
4
6
pF  
pF  
V
V
Note 7: TA = +25°C, f = 1 MHz, Capacitance is characterized but not tested.  
AC Loading and Waveforms  
Note: Input driven by 50 source terminated in 50 Ω  
Note: CL includes load and stray capacitance  
Note: Input PRR = 1.0 MHz, tW = 500 ns  
FIGURE 1. AC Test Circuit  
FIGURE 2. AC Waveforms  
www.fairchildsemi.com  
4
Physical Dimensions inches (millimeters) unless otherwise noted  
56-Lead Shrink Small Outline Package (SSOP), JEDEC MO-118, 0.300 Wide  
Package Number MS56A  
5
www.fairchildsemi.com  
Physical Dimensions inches (millimeters) unless otherwise noted (Continued)  
56-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 6.1mm Wide  
Package Number MTD56  
Technology Description  
The Fairchild Switch family derives from and embodies Fairchild’s proven switch technology used for several years in its  
74LVX3L384 (FST3384) bus switch product.  
Fairchild does not assume any responsibility for use of any circuitry described, no circuit patent licenses are implied and  
Fairchild reserves the right at any time without notice to change said circuitry and specifications.  
LIFE SUPPORT POLICY  
FAIRCHILD’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT  
DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT OF FAIRCHILD  
SEMICONDUCTOR CORPORATION. As used herein:  
1. Life support devices or systems are devices or systems  
which, (a) are intended for surgical implant into the  
body, or (b) support or sustain life, and (c) whose failure  
to perform when properly used in accordance with  
instructions for use provided in the labeling, can be rea-  
sonably expected to result in a significant injury to the  
user.  
2. A critical component in any component of a life support  
device or system whose failure to perform can be rea-  
sonably expected to cause the failure of the life support  
device or system, or to affect its safety or effectiveness.  
www.fairchildsemi.com  
www.fairchildsemi.com  
6
Preliminary  
September 1999  
Revised December 1999  
FST162861  
20-Bit Bus Switch with 25Series Resistors in Outputs  
(Preliminary)  
equivalent 25series resistors to reduce signal-reflection  
noise, eliminating the need for external terminating resis-  
tors.  
General Description  
The Fairchild Switch FST162861 provides 20-Bits of high-  
speed CMOS TTL-compatible bus switching. The low on  
resistance of the switch allows inputs to be connected to  
outputs without adding propagation delay or generating  
Features  
25switch connection between two ports.  
Minimal propagation delay through the switch.  
additional ground bounce noise.  
The device is organized as a 10-bit or 20-Bit bus switch.  
When OE1 is LOW, the switch is ON and Port 1A is con-  
Low lCC  
.
nected to Port 1B. When OE2 is LOW, Port 2A is connected  
to Port 2B. When OEX is HIGH, a high impedance state  
exists between the A and B ports. The FST162861 has an  
Zero bounce in flow-through mode.  
Control inputs compatible with TTL level.  
Ordering Code:  
Order Number Package Number  
Package Description  
FST162861MTD  
MTD48  
48-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 6.1mm Wide  
Devices also available in Tape and Reel. Specify by appending the suffix letter “X” to the ordering code.  
Connection Diagram  
Logic Diagram  
Truth Table  
Inputs  
Inputs/Outputs  
Pin Descriptions  
OE1  
OE2  
1A, 1B  
2A, 2B  
L
L
L
H
L
1A = 1B  
2A = 2B  
Pin Name  
Description  
1A = 1B  
Z
2A = 2B  
Z
OE1, OE2  
1A, 2A  
Bus Switch Enables  
Bus A  
H
H
Z
Z
H
1B, 2B  
Bus B  
© 1999 Fairchild Semiconductor Corporation  
DS500319  
www.fairchildsemi.com  
 
Preliminary  
Absolute Maximum Ratings(Note 1)  
Recommended Operating  
Conditions (Note 4)  
Supply Voltage (VCC  
)
0.5V to +7.0V  
0.5V to +7.0V  
0.5V to +7.0V  
50mA  
DC Switch Voltage (VS) (Note 2)  
DC Input Voltage (VIN) (Note 3)  
DC Input Diode Current (lIK) VIN<0V  
DC Output (IOUT) Current  
Power Supply Operating (VCC)  
4.0V to 5.5V  
0V to 5.5V  
0V to 5.5V  
Input Voltage (VIN  
)
Output Voltage (VOUT  
)
128mA  
Input Rise and Fall Time (tr, tf)  
Switch Control Input  
DC VCC/GND Current (ICC/IGND  
)
+/100mA  
0nS/V to 5nS/V  
0nS/V to DC  
Storage Temperature Range (TSTG  
)
65°C to +150 °C  
Switch I/O  
Free Air Operating Temperature (TA)  
-40 °C to +85 °C  
Note 1: The “Absolute Maximum Ratings” are those values beyond which  
the safety of the device cannot be guaranteed. The device should not be  
operated at these limits. The parametric values defined in the Electrical  
Characteristics tables are not guaranteed at the absolute maximum rating.  
The “Recommended Operating Conditions” table will define the conditions  
for actual device operation.  
Note 2: VS is the voltage observed/applied at either the A or B Port across  
the switch.  
Note 3: The input and output negative voltage ratings may be exceeded if  
the input and output diode current ratings are observed.  
Note 4: Unused control inputs must be held high or low. They may not float.  
DC Electrical Characteristics  
T
A = −40 °C to +85 °C  
VCC  
(V)  
Symbol  
Parameter  
Units  
Conditions  
Typ  
Min  
Max  
(Note 5)  
VIK  
Clamp Diode Voltage  
4.5  
4.0–5.5  
4.0–5.5  
5.5  
1.2  
V
V
IIN = −18mA  
VIH  
VIL  
II  
HIGH Level Input Voltage  
LOW Level Input Voltage  
Input Leakage Current  
2.0  
0.8  
±1.0  
10  
V
µA  
µA  
µA  
0 VIN 5.5V  
IN = 5.5V  
0 A, B VCC  
0
V
IOZ  
OFF-STATE Leakage Current  
Switch ON Resistance  
(Note 6)  
5.5  
±1.0  
38  
RON  
4.5  
20  
20  
20  
26  
28  
V
V
V
V
V
IN = 0V, IIN = 64mA  
4.5  
40  
IN = 0V, IIN = 30mA  
4.5  
35  
48  
IN = 2.4V, IIN = 15mA  
IN = 2.4V, IIN = 15mA  
IN = VCC or GND, IOUT = 0  
4.0  
TBD  
TBD  
3
ICC  
Quiescent Supply Current  
Increase in ICC per Input  
5.5  
µA  
mA  
ICC  
5.5  
2.5  
One input at 3.4V  
Other inputs at VCC or GND  
Note 5: Typical values are at VCC = 5.0V and TA = +25°C  
Note 6: Measured by the voltage drop between A and B pins at the indicated current through the switch. On resistance is determined by the lower of the  
voltages on the two (A or B) pins.  
www.fairchildsemi.com  
2
Preliminary  
AC Electrical Characteristics  
TA = −40 °C to +85 °C,  
CL = 50 pF, RU = RD = 500Ω  
Symbol  
Parameter  
Units  
Conditions  
Figure No.  
V
CC = 4.5 – 5.5V CC = 4.0V  
V
Min  
Max  
Min  
Max  
t
PHL,tPLH  
Prop Delay Bus to Bus (Note 7)  
Output Enable Time  
1.25  
1.25  
ns  
ns  
VI = OPEN  
Figure 1,  
Figure 2  
tPZH, tPZL  
1.5  
1.5  
6.0  
6.0  
6.5  
6.5  
VI = 7V for tPZL  
Figure 1,  
Figure 2  
VI = OPEN for tPZH  
VI = 7V for tPLZ  
tPHZ, tPLZ  
Output Disable Time  
ns  
Figure 1,  
Figure 2  
VI = OPEN for tPHZ  
Note 7: This parameter is guaranteed by design but is not tested. The bus switch contributes no propagation delay other than the RC delay of the typical On  
resistance of the switch and the 50pF load capacitance, when driven by an ideal voltage source (zero output impedance).  
Capacitance (Note 8)  
Symbol  
CIN  
CI/O  
Parameter  
Typ  
Max  
Units  
Conditions  
Control Pin Input Capacitance  
3
6
pF  
pF  
pF  
V
CC = 5.0V, VIN = 0V  
Input/Output Capacitance “OFF State”  
VCC, OE = 5.0V, VIN = 0V  
Input/Output Capacitance “ON State”  
12  
V
CC = 5.0V, OE = 0.0V, VIN = 0V  
Note 8: TA = +25°C, f = 1 MHz, Capacitance is characterized but not tested.  
AC Loading and Waveforms  
Note: Input driven by 50source terminated in 50Ω  
Note: CL includes load and stray capacitance  
Note: Input PRR = 1.0 MHz, tW = 500 ns  
FIGURE 1. AC Test Circuit  
FIGURE 2. AC Waveforms  
3
www.fairchildsemi.com  
Preliminary  
Physical Dimensions inches (millimeters) unless otherwise noted  
48-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 6.1mm Wide  
Package Number MTD48  
Technology Description  
The Fairchild Switch family derives from and embodies Fairchild’s proven switch technology used for several years in its  
74LVX3L384(FST3384) bus switch product.  
www.fairchildsemi.com  
4
Preliminary  
Fairchild does not assume any responsibility for use of any circuitry described, no circuit patent licenses are implied and  
Fairchild reserves the right at any time without notice to change said circuitry and specifications.  
LIFE SUPPORT POLICY  
FAIRCHILD’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT  
DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT OF FAIRCHILD  
SEMICONDUCTOR CORPORATION. As used herein:  
1. Life support devices or systems are devices or systems  
which, (a) are intended for surgical implant into the  
body, or (b) support or sustain life, and (c) whose failure  
to perform when properly used in accordance with  
instructions for use provided in the labeling, can be rea-  
sonably expected to result in a significant injury to the  
user.  
2. A critical component in any component of a life support  
device or system whose failure to perform can be rea-  
sonably expected to cause the failure of the life support  
device or system, or to affect its safety or effectiveness.  
www.fairchildsemi.com  
5
www.fairchildsemi.com  
July 1997  
Revised December 1999  
FST16292  
12-Bit to 24-Bit Multiplexer/Demultiplexer Bus Switch  
General Description  
Features  
The Fairchild Switch FST16292 provides twelve 2:1 high-  
speed CMOS TTL-compatible multiplexer/demultiplexer  
bus switches. The low on resistance of the switch allows  
inputs to be connected to outputs without adding propaga-  
tion delay or generating additional ground bounce noise.  
4switch connection between two ports.  
Minimal propagation delay through the switch.  
Low lCC  
.
Zero bounce in flow-through mode.  
Control inputs compatible with TTL level.  
Internal 500pull-down resistor on A2 port.  
The select pin connects the A Port to the selected B Port  
output. The A2 Ports are not externally connected, thus  
have a 500pull-down resistor to ground.  
Ordering Code:  
Order Number  
FST16292MEA  
FST16292MTD  
Package Number  
MS56A  
Package Description  
56-Lead Shrink Small Outline Package (SSOP), JEDEC MO-118, 0.300 Wide  
56-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 6.1mm Wide  
MTD56  
Devices also available in Tape and Reel. Specify by appending the suffix letter “X” to the ordering code.  
Logic Diagram  
Connection Diagram  
Pin Descriptions  
Truth Table  
Pin Name  
SO  
Description  
Data-select input  
Bus A  
S0  
A1  
A2  
Function  
L
B1  
B2  
B2  
B1  
A
A
1 = B1, A2 = B2  
1 = B2, A2 = B1  
A1  
H
B1, B2  
Bus B  
© 1999 Fairchild Semiconductor Corporation  
DS500104  
www.fairchildsemi.com  
 
Absolute Maximum Ratings(Note 1)  
Recommended Operating  
Conditions  
Supply Voltage (VCC  
)
0.5V to +7.0V  
0.5V to +7.0V  
0.5V to +7.0V  
50mA  
DC Switch Voltage (VS)  
Power Supply Operating (VCC)  
4.0V to 5.5V  
0V to 5.5V  
0V to 5.5V  
DC Input Voltage (VIN) (Note 2)  
DC Input Diode Current (lIK) VIN<0V  
DC Output (IOUT) Sink Current  
Input Voltage (VIN  
)
Output Voltage (VOUT  
)
128mA  
Input Rise and Fall Time (tr, tf)  
Switch Control Input  
DC VCC/GND Current (ICC/IGND  
)
+/100mA  
0ns/V to 5ns/V  
0ns/V to DC  
Storage Temperature Range (TSTG  
)
65°C to +150 °C  
Switch I/O  
Free Air Operating Temperature (TA)  
40 °C to +85 °C  
Note 1: The “Absolute Maximum Ratings” are those values beyond which  
the safety of the device cannot be guaranteed. The device should not be  
operated at these limits. The parametric values defined in the Electrical  
Characteristics tables are not guaranteed at the absolute maximum rating.  
The “Recommended Operating Conditions” table will define the conditions  
for actual device operation.  
Note 2: The input and output negative voltage ratings may be exceeded if  
the input and output diode current ratings are observed.  
DC Electrical Characteristics  
T
A = −40 °C to +85 °C  
VCC  
(V)  
Symbol  
Parameter  
Units  
Conditions  
Typ  
Min  
Max  
(Note 3)  
VIK  
Clamp Diode Voltage  
4.5  
4.0–5.5  
4.0–5.5  
5.5  
1.2  
V
V
IIN = −18mA  
VIH  
VIL  
II  
HIGH Level Input Voltage  
LOW Level Input Voltage  
Input Leakage Current  
2.0  
0.8  
±1.0  
10  
±1.0  
7
V
µA  
µA  
µA  
0VIN 5.5V  
IN = 5.5V  
0 A, B VCC  
0
V
IOZ  
OFF-STATE Leakage Current  
Switch On Resistance  
(Note 4)  
5.5  
RON  
4.5  
4
4
V
V
V
V
V
IN = 0V, IIN = 64mA  
4.5  
7
IN = 0V, IIN = 30mA  
4.5  
8
12  
20  
3
IN = 2.4V, IIN = 15mA  
IN = 2.4V, IIN = 15mA  
IN = VCC or GND, IOUT = 0  
4.0  
14  
ICC  
Quiescent Supply Current  
Increase in ICC per Input  
5.5  
µA  
mA  
ICC  
5.5  
2.5  
One input at 3.4V  
Other inputs at VCC or GND  
Note 3: Typical values are at VCC = 5.0V and TA =+25°C  
Note 4: Measured by the voltage drop between A and B pins at the indicated current through the switch. On resistance is determined by the lower of the  
voltages on the two (A or B) pins.  
www.fairchildsemi.com  
2
AC Electrical Characteristics  
TA = −40 °C to +85 °C,  
C
L = 50pF, RU = RD = 500Ω  
Symbol  
Parameter  
Units  
Conditions  
Figure No.  
V
CC = 4.5 – 5.5V  
VCC = 4.0V  
Min  
Max  
Min  
Max  
t
PHL,tPLH  
Prop Delay Bus to Bus (Note 5)  
Prop Delay S0 to A1  
0.25  
0.25  
7.4  
ns  
ns  
VI = OPEN  
Figure 1  
Figure 2  
tPHL,tPLH  
PZL, tPZH  
1.5  
7.0  
VI = OPEN  
Figure 1  
Figure 2  
t
Output Enable Time  
S0 to B1 or B2  
VI = 7V for tPZL  
Figure 1  
Figure 2  
1.0  
1.0  
6.7  
7.5  
7.0  
7.8  
ns  
ns  
VI = OPEN for tPZH  
VI = 7V for tPLZ  
tPLZ, tPHZ  
Output Disable Time  
S0 to B1 or B2  
Figure 1  
Figure 2  
VI = OPEN for tPHZ  
Note 5: This parameter is guaranteed by design but is not tested. The bus switch contributes no propagation delay other than the RC delay of the typical On  
resistance of the switch and the 50pF load capacitance, when driven by an ideal voltage source (zero output impedance).  
Capacitance (Note 6)  
Symbol  
Parameter  
Typ  
Max  
Units  
Conditions  
CC = 5.0V  
CIN  
Control pin Input Capacitance  
Input/Output Capacitance  
3
pF  
pF  
V
V
CI/O  
10  
CC = 5.0V, S0 =GND  
Note 6: TA = +25°C, f = 1 MHz, Capacitance is characterized but not tested.  
AC Loading and Waveforms  
Note: Input driven by 50 source terminated in 50 Ω  
Note: CL includes load and stray capacitance  
Note: Input PRR = 1.0 MHz, tW = 500 ns  
FIGURE 1. AC Test Circuit  
FIGURE 2. AC Waveforms  
3
www.fairchildsemi.com  
Physical Dimensions inches (millimeters) unless otherwise noted  
56-Lead Shrink Small Outline Package (SSOP), JEDEC MO-118, 0.300 Wide  
Package Number MS56A  
www.fairchildsemi.com  
4
Physical Dimensions inches (millimeters) unless otherwise noted (Continued)  
56-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 6.1mm Wide  
Package Number MTD56  
Technology Description  
The Fairchild Switch family derives from and embodies Fairchild’s proven switch technology used for several years in its  
74LVX3L384 (FST3384) bus switch product.  
Fairchild does not assume any responsibility for use of any circuitry described, no circuit patent licenses are implied and  
Fairchild reserves the right at any time without notice to change said circuitry and specifications.  
LIFE SUPPORT POLICY  
FAIRCHILD’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT  
DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT OF FAIRCHILD  
SEMICONDUCTOR CORPORATION. As used herein:  
1. Life support devices or systems are devices or systems  
which, (a) are intended for surgical implant into the  
body, or (b) support or sustain life, and (c) whose failure  
to perform when properly used in accordance with  
instructions for use provided in the labeling, can be rea-  
sonably expected to result in a significant injury to the  
user.  
2. A critical component in any component of a life support  
device or system whose failure to perform can be rea-  
sonably expected to cause the failure of the life support  
device or system, or to affect its safety or effectiveness.  
www.fairchildsemi.com  
5
www.fairchildsemi.com  
Preliminary  
September 1999  
Revised December 1999  
FST16861  
20-Bit Bus Switch (Preliminary)  
General Description  
Features  
The Fairchild Switch FST16861 provides 20-Bits of high-  
speed CMOS TTL-compatible bus switching. The low ON  
resistance of the switch allows inputs to be connected to  
outputs without adding propagation delay or generating  
additional ground bounce noise.  
4switch connection between two ports.  
Minimal propagation delay through the switch.  
Low lCC  
.
Zero bounce in flow-through mode.  
Control inputs compatible with TTL level.  
The device is organized as a 10-bit or 20-Bit bus switch.  
When OE1 is LOW, the switch is ON and Port 1A is con-  
nected to Port 1B. When OE2 is LOW, Port 2A is connected  
to Port 2B. When OEX is HIGH, a high impedance state  
exists between the A and B Ports.  
Ordering Code:  
Order Number Package Number  
Package Description  
FST16861MTD  
MTD48  
48-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 6.1mm Wide  
Devices also available in Tape and Reel. Specify by appending the suffix letter “X” to the ordering code.  
Connection Diagram  
Logic Diagram  
Truth Table  
Pin Descriptions  
Inputs  
Inputs/Outputs  
Pin Name  
Description  
OE1  
OE2  
1A, 1B  
2A, 2B  
L
L
L
H
L
1A = 1B  
2A = 2B  
OE1, OE2  
1A, 2A  
Bus Switch Enables  
Bus A  
1A = 1B  
Z
2A = 2B  
Z
H
H
Z
Z
1B, 2B  
Bus B  
H
© 1999 Fairchild Semiconductor Corporation  
DS500318  
www.fairchildsemi.com  
 
Preliminary  
Absolute Maximum Ratings(Note 1)  
Recommended Operating  
Conditions (Note 4)  
Supply Voltage (VCC  
)
0.5V to +7.0V  
0.5V to +7.0V  
0.5V to +7.0V  
50mA  
DC Switch Voltage (VS) (Note 2)  
DC Input Voltage (VIN) (Note 3)  
DC Input Diode Current (lIK) VIN<0V  
DC Output (IOUT) Current  
Power Supply Operating (VCC)  
4.0V to 5.5V  
0V to 5.5V  
0V to 5.5V  
Input Voltage (VIN  
)
Output Voltage (VOUT  
)
128mA  
Input Rise and Fall Time (tr, tf)  
Switch Control Input  
DC VCC/GND Current (ICC/IGND  
)
+/100mA  
0nS/V to 5nS/V  
0nS/V to DC  
Storage Temperature Range (TSTG  
)
65°C to +150 °C  
Switch I/O  
Free Air Operating Temperature (TA)  
-40 °C to +85 °C  
Note 1: The “Absolute Maximum Ratings” are those values beyond which  
the safety of the device cannot be guaranteed. The device should not be  
operated at these limits. The parametric values defined in the Electrical  
Characteristics tables are not guaranteed at the absolute maximum rating.  
The “Recommended Operating Conditions” table will define the conditions  
for actual device operation.  
Note 2: V is the voltage observed/applied at either the A or B Ports across  
S
the switch.  
Note 3: The input and output negative voltage ratings may be exceeded if  
the input and output diode current ratings are observed.  
Note 4: Unused control inputs must be held high or low. They may not float.  
DC Electrical Characteristics  
T
= −40 °C to +85 °C  
A
V
(V)  
CC  
Symbol  
Parameter  
Units  
Conditions  
Typ  
Min  
Max  
(Note 5)  
V
V
V
Clamp Diode Voltage  
4.5  
4.0–5.5  
4.0–5.5  
5.5  
1.2  
V
V
I
= −18mA  
IN  
IK  
HIGH Level Input Voltage  
LOW Level Input Voltage  
Input Leakage Current  
2.0  
IH  
IL  
0.8  
±1.0  
10  
±1.0  
7
V
I
µA  
µA  
µA  
0V 5.5V  
IN  
I
0
V
= 5.5V  
IN  
I
OFF-STATE Leakage Current  
Switch On Resistance  
(Note 6)  
5.5  
0 A, B V  
CC  
OZ  
R
4.5  
4
4
V
V
V
V
V
= 0V, I = 64mA  
IN  
ON  
IN  
IN  
IN  
IN  
IN  
4.5  
7
= 0V, I = 30mA  
IN  
4.5  
8
12  
20  
3
= 2.4V, I = 15mA  
IN  
4.0  
11  
= 2.4V, I = 15mA  
IN  
I
Quiescent Supply Current  
5.5  
µA  
mA  
= V or GND, I  
= 0  
OUT  
CC  
CC  
I  
Increase in I per Input  
5.5  
2.5  
One input at 3.4V  
Other inputs at V or GND  
CC  
CC  
CC  
Note 5: Typical values are at V = 5.0V and T = +25°C  
CC  
A
Note 6: Measured by the voltage drop between A and B pins at the indicated current through the switch. On resistance is determined by the lower of the  
voltages on the two (A or B) pins.  
www.fairchildsemi.com  
2
Preliminary  
AC Electrical Characteristics  
T
= −40 °C to +85 °C,  
A
C
= 50pF, RU = RD = 500Ω  
L
Symbol  
Parameter  
Units  
Conditions  
Figure No.  
V
= 4.5 – 5.5V  
V
= 4.0V  
CC  
CC  
Min  
Max  
Min  
Max  
t
,t  
Prop Delay Bus-to-Bus (Note 7)  
Output Enable Time  
0.25  
0.25  
ns  
ns  
V = OPEN  
Figure 1,  
Figure 2  
PHL PLH  
I
t
, t  
1.5  
1.5  
6.0  
6.0  
6.5  
V = 7V for t  
I PZL  
PZH PZL  
Figure 1,  
Figure 2  
V = OPEN for t  
I
PZH  
t
, t  
Output Disable Time  
6.5  
ns  
V = 7V for t  
I PLZ  
PHZ PLZ  
Figure 1,  
Figure 2  
V = OPEN for t  
I
PHZ  
Note 7: This parameter is guaranteed by design but is not tested. The bus switch contributes no propagation delay other than the RC delay of the typical On  
resistance of the switch and the 50pF load capacitance, when driven by an ideal voltage source (zero output impedance).  
Capacitance (Note 8)  
Symbol  
Parameter  
Typ  
Max  
Units  
Conditions  
= 5.0V, V = 0V  
C
C
Control Pin Input Capacitance  
3
6
pF  
pF  
pF  
V
V
V
IN  
I/O  
CC  
CC  
CC  
IN  
Input/Output Capacitance “OFF State”  
, OE = 5.0V, V = 0V  
IN  
Input/Output Capacitance “ON State”  
12  
= 5.0V, OE = 0.0V, V = 0V  
IN  
Note 8: T = +25°C, f = 1 Mhz, Capacitance is characterized but not tested.  
A
AC Loading and Waveforms  
Note: Input driven by 50source terminated in 50Ω  
Note: C includes load and stray capacitance  
L
Note: Input PRR = 1.0 MHz, T = 500 ns  
W
FIGURE 1. AC Test Circuit  
FIGURE 2. AC Waveforms  
3
www.fairchildsemi.com  
Preliminary  
Physical Dimensions inches (millimeters) unless otherwise noted  
48-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 6.1mm Wide  
Package Number MTD48  
Technology Description  
The Fairchild Switch family derives from and embodies Fairchild’s proven switch technology used for several years in its  
74LVX3L384(FST3384) bus switch product.  
www.fairchildsemi.com  
4
Preliminary  
Fairchild does not assume any responsibility for use of any circuitry described, no circuit patent licenses are implied and  
Fairchild reserves the right at any time without notice to change said circuitry and specifications.  
LIFE SUPPORT POLICY  
FAIRCHILD’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT  
DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT OF FAIRCHILD  
SEMICONDUCTOR CORPORATION. As used herein:  
1. Life support devices or systems are devices or systems  
which, (a) are intended for surgical implant into the  
body, or (b) support or sustain life, and (c) whose failure  
to perform when properly used in accordance with  
instructions for use provided in the labeling, can be rea-  
sonably expected to result in a significant injury to the  
user.  
2. A critical component in any component of a life support  
device or system whose failure to perform can be rea-  
sonably expected to cause the failure of the life support  
device or system, or to affect its safety or effectiveness.  
www.fairchildsemi.com  
5
www.fairchildsemi.com  
August 1997  
Revised December 1999  
FST3125  
Quad Bus Switch  
General Description  
Features  
The Fairchild Switch FST3125 provides four high-speed  
CMOS TTL-compatible bus switches. The low on resis-  
tance of the switch allows inputs to be connected to out-  
puts without adding propagation delay or generating  
additional ground bounce noise.  
4switch connection between two ports.  
Minimal propagation delay through the switch.  
Low lCC  
.
Zero bounce in flow-through mode.  
Control inputs compatible with TTL level.  
The device is organized as four 1-bit switches with sepa-  
rate OE inputs. When OE is LOW, the switch is ON and  
Port A is connected to Port B. When OE is HIGH, the  
switch is OPEN and  
between the two ports.  
a high-impedance state exists  
Ordering Code:  
Order Number  
FST3125M  
Package Number  
Package Description  
M14A  
MQA16  
MTC14  
14-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-120, 0.150 Narrow  
16-Lead Quarter Size Outline Package (QSOP), JEDEC MO-137, 0.150 Wide  
14-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 4.4mm Wide  
FST3125QSC  
FST3125MTC  
Devices also available in Tape and Reel. Specify by appending the suffix letter “X” to the ordering code.  
Logic Diagram  
Connection Diagrams  
Pin Assignment for SOIC and TSSOP  
Pin Assignment for QSOP  
Pin Descriptions  
Truth Table  
Pin Name  
Description  
Inputs  
Inputs/Outputs  
Bus Switch Enables  
OE1, OE2, OE3, OE4  
1A, 2A, 3A, 4A  
1B, 2B, 3B, 4B  
NC  
Bus A  
Bus B  
OE  
L
A,B  
A = B  
Z
Not Connected  
H
© 1999 Fairchild Semiconductor Corporation  
DS500043  
www.fairchildsemi.com  
 
Absolute Maximum Ratings(Note 1)  
Recommended Operating  
Conditions (Note 3)  
Supply Voltage (VCC  
)
0.5V to +7.0V  
0.5V to +7.0V  
0.5V to +7.0V  
50mA  
DC Switch Voltage (VS)  
Power Supply Operating (VCC  
Input Voltage (VIN  
Output Voltage (VOUT  
)
4.0V to 5.5V  
0V to 5.5V  
0V to 5.5V  
DC Input Voltage (VIN)(Note 2)  
DC Input Diode Current (lIK) VIN<0V  
DC Output (IOUT) Sink Current  
)
)
128mA  
Input Rise and Fall Time (tr, tf)  
Switch Control Input  
DC VCC/GND Current (ICC/IGND  
)
+/100mA  
0ns/V to 5ns/V  
0ns/V to DC  
Storage Temperature Range (TSTG  
)
65°C to +150 °C  
Switch I/O  
Free Air Operating Temperature (TA)  
40 °C to +85 °C  
Note 1: The “Absolute Maximum Ratings” are those values beyond which  
the safety of the device cannot be guaranteed. The device should not be  
operated at these limits. The parametric values defined in the Electrical  
Characteristics tables are not guaranteed at the absolute maximum rating.  
The “Recommended Operating Conditions” table will define the conditions  
for actual device operation.  
Note 2: The input and output negative voltage ratings may be exceeded if  
the input and output diode current ratings are observed.  
Note 3: Unused control inputs must be held high or low. They may not float.  
DC Electrical Characteristics  
T
A = −40 °C to +85 °C  
VCC  
(V)  
Symbol  
Parameter  
Units  
Conditions  
Min  
Typ  
Max  
(Note 4)  
VIK  
Clamp Diode Voltage  
High Level Input Voltage  
Low Level Input Voltage  
Input Leakage Current  
OFF-STATE Leakage Current  
Switch On Resistance  
(Note 5)  
4.5  
4.0–5.5  
4.0–5.5  
5.5  
1.2  
V
V
IIN = −18mA  
VIH  
VIL  
II  
2.0  
0.8  
±1.0  
±1.0  
7
V
µA  
µA  
0VIN 5.5V  
0 A, B VCC  
IOZ  
RON  
5.5  
4.5  
4
4
V
V
V
V
V
IN = 0V, IIN = 64mA  
IN = 0V, IIN = 30mA  
IN = 2.4V, IIN = 15mA  
IN = 2.4V, IIN = 15mA  
IN = VCC or GND,  
4.5  
7
4.5  
8
15  
20  
3
4.0  
11  
ICC  
Quiescent Supply Current  
Increase in ICC per Input  
5.5  
µA  
I
OUT = 0  
ICC  
5.5  
2.5  
mA  
One input at 3.4V.  
Other inputs at VCC or GND  
Note 4: Typical values are at VCC = 5.0V and TA = +25°C  
Note 5: Measured by the voltage drop between A and B pins at the indicated current through the switch. On resistance is determined by the lower of the  
voltages on the two (A or B) pins.  
www.fairchildsemi.com  
2
AC Electrical Characteristics  
T
A = −40 °C to +85 °C,  
CL = 50pF, RU = RD = 500Ω  
Symbol  
Parameter  
Units  
Conditions  
Figure No.  
V
CC = 4.5 – 5.5V CC = 4.0V  
V
Min  
Max  
Min  
Max  
t
PHL,tPLH  
Prop Delay Bus to Bus (Note 6)  
Output Enable Time  
0.25  
0.25  
ns  
ns  
VI = OPEN  
Figure 1  
Figure 2  
tPZH, tPZL  
1.0  
1.5  
5.0  
5.3  
5.5  
5.6  
VI = 7V for tPZL  
Figure 1  
Figure 2  
VI = OPEN for tPZH  
VI = 7V for tPLZ  
tPHZ, tPLZ  
Output Disable Time  
ns  
Figure 1  
Figure 2  
VI = OPEN for tPHZ  
Note 6: This parameter is guaranteed by design but is not tested. The bus switch contributes no propagation delay other than the RC delay of the typical On  
resistance of the switch and the 50pF load capacitance, when driven by an ideal voltage source (zero output impedance).  
Capacitance (Note 7)  
Symbol  
CIN  
CI/O  
Parameter  
Typ  
Max  
Units  
Conditions  
Control Pin Input Capacitance  
3
pF  
VCC = 5.0V  
VCC, OE = 5.0V  
Input/Output Capacitance  
5
pF  
Note 7: TA = +25°C, f = 1 MHz, Capacitance is characterized but not tested.  
AC Loading and Waveforms  
Note: Input driven by 50 source terminated in 50 Ω  
Note: CL includes load and stray capacitance  
Note: Input PRR = 1.0 MHz, tW = 500ns  
FIGURE 1. AC Test Circuit  
FIGURE 2. AC Waveforms  
3
www.fairchildsemi.com  
Physical Dimensions inches (millimeters) unless otherwise noted  
14-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-120, 0.150 Narrow  
Package Number M14A  
16-Lead Quarter Size Outline Package (QSOP), JEDEC MO-137, 0.150 Wide  
Package Number MQA16  
www.fairchildsemi.com  
4
Physical Dimensions inches (millimeters) unless otherwise noted (Continued)  
14-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 4.4mm Wide  
Package Number MTC14  
Technology Description  
The Fairchild Switch family derives from and embodies Fairchild’s proven switch technology used for several years in its  
74LVX3L384 (FST3384) bus switch product.  
5
www.fairchildsemi.com  
Fairchild does not assume any responsibility for use of any circuitry described, no circuit patent licenses are implied and  
Fairchild reserves the right at any time without notice to change said circuitry and specifications.  
LIFE SUPPORT POLICY  
FAIRCHILD’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT  
DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT OF FAIRCHILD  
SEMICONDUCTOR CORPORATION. As used herein:  
1. Life support devices or systems are devices or systems  
which, (a) are intended for surgical implant into the  
body, or (b) support or sustain life, and (c) whose failure  
to perform when properly used in accordance with  
instructions for use provided in the labeling, can be rea-  
sonably expected to result in a significant injury to the  
user.  
2. A critical component in any component of a life support  
device or system whose failure to perform can be rea-  
sonably expected to cause the failure of the life support  
device or system, or to affect its safety or effectiveness.  
www.fairchildsemi.com  
www.fairchildsemi.com  
6
August 1997  
Revised December 1999  
FST3126  
Quad Bus Switch  
General Description  
Features  
The Fairchild Switch FST3126 provides four high-speed  
CMOS TTL-compatible bus switches. The low on resis-  
tance of the switch allows inputs to be connected to out-  
puts without adding propagation delay or generating  
additional ground bounce noise.  
4switch connection between two ports.  
Minimal propagation delay through the switch.  
Low lCC  
.
Zero bounce in flow-through mode.  
Control inputs compatible with TTL level.  
The device is organized as four 1-bit switches with sepa-  
rate OE inputs. When OE is HIGH, the switch is ON and  
Port A is connected to Port B. When OE is LOW, the switch  
is OPEN and a high-impedance state exists between the  
two ports.  
Ordering Code:  
Order Number  
FST3126M  
Package Number  
M14A  
Package Description  
14-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-120, 0.150 Narrow  
16-Lead Quarter Size Outline Package (QSOP), JEDEC MO-137, 0.150 Wide  
14-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 4.4mm Wide  
FST3126QSC  
FST3126MTC  
MQA16  
MTC14  
Devices also available in Tape and Reel. Specify by appending the suffix letter “X” to the ordering code.  
Logic Diagram  
Connection Diagrams  
Pin Assignment for SOIC and TSSOP  
Pin Assignment for QSOP  
Pin Descriptions  
Truth Table  
Pin Name  
Description  
Inputs  
Inputs/Outputs  
OE1, OE2, OE3, OE4 Bus Switch Enables  
OE  
L
A,B  
Z
1A, 2A, 3A, 4A  
1B, 2B, 3B, 4B  
NC  
Bus A  
Bus B  
H
A = B  
Not Connected  
© 1999 Fairchild Semiconductor Corporation  
DS500044  
www.fairchildsemi.com  
 
Absolute Maximum Ratings(Note 1)  
Recommended Operating  
Conditions (Note 3)  
Supply Voltage (VCC  
)
0.5V to +7.0V  
0.5V to +7.0V  
0.5V to +7.0V  
50mA  
DC Switch Voltage (VS)  
Power Supply Operating (VCC)  
4.0V to 5.5V  
0V to 5.5V  
0V to 5.5V  
DC Input Voltage (VIN) (Note 2)  
DC Input Diode Current (lIK) VIN<0V  
DC Output (IOUT) Sink Current  
Input Voltage (VIN  
)
Output Voltage (VOUT  
)
128mA  
Input Rise and Fall Time (tr, tf)  
Switch Control Input  
DC VCC/GND Current (ICC/IGND  
)
+/100mA  
0nS/V to 5nS/V  
0nS/V to DC  
Storage Temperature Range (TSTG  
)
65°C to +150 °C  
Switch I/O  
Free Air Operating Temperature (TA)  
40 °C to +85 °C  
Note 1: The “Absolute Maximum Ratings” are those values beyond which  
the safety of the device cannot be guaranteed. The device should not be  
operated at these limits. The parametric values defined in the Electrical  
Characteristics tables are not guaranteed at the absolute maximum rating.  
The “Recommended Operating Conditions” table will define the conditions  
for actual device operation.  
Note 2: The input and output negative voltage ratings may be exceeded if  
the input and output diode current ratings are observed.  
Note 3: Unused control inputs must be held high or low. They may not float.  
DC Electrical Characteristics  
T
A = −40 °C to +85 °C  
VCC  
(V)  
Symbol  
Parameter  
Units  
Conditions  
Typ  
Min  
Max  
(Note 4)  
VIK  
Clamp Diode Voltage  
HIGH Level Input Voltage  
LOW Level Input Voltage  
Input Leakage Current  
OFF-STATE Leakage Current  
Switch On Resistance  
(Note 5)  
4.5  
4.0–5.5  
4.0–5.5  
5.5  
1.2  
V
V
IIN = −18mA  
VIH  
VIL  
II  
2.0  
0.8  
±1.0  
±1.0  
7
V
µA  
µA  
0VIN 5.5V  
0 A, B VCC  
IOZ  
RON  
5.5  
4.5  
4
4
VIN = 0V, IIN = 64mA  
VIN = 0V, IIN = 30mA  
VIN = 2.4V, IIN = 15mA  
VIN = 2.4V, IIN = 15mA  
VIN = VCC or GND,  
4.5  
7
4.5  
8
15  
20  
3
4.0  
11  
ICC  
Quiescent Supply Current  
Increase in ICC per Input  
5.5  
µA  
I
OUT = 0  
ICC  
5.5  
2.5  
mA  
One input at 3.4V.  
Other inputs at VCC or GND  
Note 4: Typical values are at VCC = 5.0V and TA = +25°C  
Note 5: Measured by the voltage drop between A and B pins at the indicated current through the switch. On resistance is determined by the lower of the  
voltages on the two (A or B) pins.  
www.fairchildsemi.com  
2
AC Electrical Characteristics  
TA = −40 °C to +85 °C,  
CL = 50pF, RU = RD = 500Ω  
Symbol  
Parameter  
Units  
Conditions  
Figure No.  
V
CC = 4.5 5.5V CC = 4.0V  
V
Min  
Max  
0.25  
4.5  
Min  
Max  
0.25  
5.0  
t
PHL,tPLH  
Prop Delay Bus to Bus (Note 6)  
Output Enable Time  
VI=OPEN  
Figure 1  
Figure 2  
ns  
ns  
tPZH, tPZL  
1.0  
1.5  
VI = 7V for tPZL  
Figure 1  
Figure 2  
VI = OPEN for tPZH  
VI = 7V for tPLZ  
tPHZ, tPLZ  
Output Disable Time  
5.7  
6.2  
ns  
Figure 1  
Figure 2  
VI = OPEN for tPHZ  
Note 6: This parameter is guaranteed by design but is not tested. The bus switch contributes no propagation delay other than the RC delay of the typical On  
resistance of the switch and the 50pF load capacitance, when driven by an ideal voltage source (zero output impedance).  
Capacitance (Note 7)  
Symbol  
CIN  
CI/O  
Parameter  
Typ  
Max  
Units  
Conditions  
Control Pin Input Capacitance  
Input/Output Capacitance  
3
5
pF  
pF  
V
CC = 5.0V  
CC = 5.0V, OE = 0V  
V
Note 7: TA = +25°C, f = 1 MHz, Capacitance is characterized but not tested.  
AC Loading and Waveforms  
Note: Input driven by 50 source terminated in 50 Ω  
Note: CL includes load and stray capacitance  
Note: Input PRR = 1.0MHz, tW = 500ns  
FIGURE 1. AC Test Circuit  
FIGURE 2. AC Waveforms  
3
www.fairchildsemi.com  
Physical Dimensions inches (millimeters) unless otherwise noted  
14-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-120, 0.150 Narrow  
Package Number M14A  
16-Lead Quarter Size Outline Package (QSOP), JEDEC MO-137, 0.150 Wide  
Package Number MQA16  
www.fairchildsemi.com  
4
Physical Dimensions inches (millimeters) unless otherwise noted (Continued)  
14-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 4.4mm Wide  
Package Number MTC14  
Technology Description  
The Fairchild Switch family derives from and embodies Fairchild’s proven switch technology used for several years in its  
74LVX3L384 (FST3384) bus switch product.  
5
www.fairchildsemi.com  
Fairchild does not assume any responsibility for use of any circuitry described, no circuit patent licenses are implied and  
Fairchild reserves the right at any time without notice to change said circuitry and specifications.  
LIFE SUPPORT POLICY  
FAIRCHILD’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT  
DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT OF FAIRCHILD  
SEMICONDUCTOR CORPORATION. As used herein:  
1. Life support devices or systems are devices or systems  
which, (a) are intended for surgical implant into the  
body, or (b) support or sustain life, and (c) whose failure  
to perform when properly used in accordance with  
instructions for use provided in the labeling, can be rea-  
sonably expected to result in a significant injury to the  
user.  
2. A critical component in any component of a life support  
device or system whose failure to perform can be rea-  
sonably expected to cause the failure of the life support  
device or system, or to affect its safety or effectiveness.  
www.fairchildsemi.com  
www.fairchildsemi.com  
6
June 1997  
Revised December 1999  
FST3244  
Octal Bus Switch  
General Description  
Features  
The Fairchild Switch FST3244 provides 8-bits of high-  
speed CMOS TTL-compatible bus switching in a standard  
’244 pin-out. The low on resistance of the switch allows  
inputs to be connected to outputs without adding propaga-  
tion delay or generating additional ground bounce noise.  
4switch connection between two ports.  
Minimal propagation delay through the switch.  
Low lCC  
.
Zero bounce in flow-through mode.  
Control inputs compatible with TTL level.  
The device is organized as two 4-bit switches with separate  
OE inputs. When OE is LOW, the switch is ON and Port A  
is connected to Port B. When OE is HIGH, the switch is  
OPEN and a high-impedance state exists between the two  
ports.  
Ordering Code:  
Order Number  
FST3244WM  
FST3244QSC  
FST3244MTC  
Package Number  
M20B  
Package Description  
20-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300 Wide  
20-Lead Quarter Size Outline Package (QSOP), JEDEC MO-137, 0.150 Wide  
20-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 4.4mm Wide  
MQA20  
MTC20  
Devices also available in Tape and Reel. Specify by appending the suffix letter “X” to the ordering code.  
Logic Diagram  
Connection Diagram  
Truth Table  
Inputs  
Inputs/Outputs  
Pin Descriptions  
OE1  
L
OE2  
L
1A, 1B  
1A = 1B  
1A = 1B  
Z
2A, 2B  
2A = 2B  
Z
Pin Name  
Description  
OE1, OE2  
1A, 2A  
Bus Switch Enable  
Bus A  
L
H
H
L
2A = 2B  
Z
1B, 2B  
Bus B  
H
H
Z
© 1999 Fairchild Semiconductor Corporation  
DS500021  
www.fairchildsemi.com  
 
Absolute Maximum Ratings(Note 1)  
Recommended Operating  
Conditions (Note 3)  
Supply Voltage (VCC  
)
0.5V to +7.0V  
0.5V to +7.0V  
0.5V to +7.0V  
50mA  
DC Switch Voltage (VS)  
Power Supply Operating (VCC  
Input Voltage (VIN  
Output Voltage (VOUT  
)
4.0V to 5.5V  
0V to 5.5V  
0V to 5.5V  
DC Input Voltage (VIN) (Note 2)  
DC Input Diode Current (lIK) VIN<0V  
DC Output (IOUT) Sink Current  
)
)
128mA  
Input Rise and Fall Time (tr, tf)  
Switch Control Input  
DC VCC/GND Current (ICC/IGND  
)
+/100mA  
0nS/V to 5nS/V  
0nS/V to DC  
Storage Temperature Range (TSTG  
)
65°C to +150 °C  
Switch I/O  
Free Air Operating Temperature (TA)  
40 °C to +85 °C  
Note 1: The Absolute Maximum Ratings are those values beyond which  
the safety of the device cannot be guaranteed. The device should not be  
operated at these limits. The parametric values defined in the Electrical  
Characteristics tables are not guaranteed at the absolute maximum rating.  
The Recommended Operating Conditions tables will define the conditions  
for actual device operation.  
Note 2: The input and output negative voltage ratings may be exceeded if  
the input and output diode current ratings are observed.  
Note 3: Unused control inputs must be held HIGH or LOW. They may not  
float.  
DC Electrical Characteristics  
T
= −40 °C to +85 °C  
A
V
(V)  
CC  
Symbol  
Parameter  
Units  
Conditions  
Typ  
Min  
Max  
(Note 4)  
V
V
V
Clamp Diode Voltage  
High Level Input Voltage  
Low Level Input Voltage  
Input Leakage Current  
OFF-STATE Leakage Current  
Switch On Resistance  
(Note 5)  
4.5  
4.0–5.5  
4.0–5.5  
5.5  
1.2  
V
V
I
= −18mA  
IN  
IK  
2.0  
IH  
IL  
0.8  
±1.0  
±1.0  
7
V
I
I
µA  
µA  
0V 5.5V  
IN  
I
5.5  
0 A, B V  
CC  
OZ  
R
4.5  
4
4
V
V
V
V
V
= 0V, I = 64mA  
IN  
ON  
IN  
IN  
IN  
IN  
IN  
4.5  
7
= 0V, I = 30mA  
IN  
4.5  
8
15  
20  
3
= 2.4V, I = 15mA  
IN  
4.0  
11  
= 2.4V, I = 15mA  
IN  
I
Quiescent Supply Current  
5.5  
µA  
mA  
= V or GND, I  
= 0  
OUT  
CC  
CC  
I  
Increase in I per Input  
5.5  
2.5  
One input at 3.4V  
Other inputs at V or GND  
CC  
CC  
CC  
Note 4: Typical values are at V = 5.0V and T = +25°C  
CC  
A
Note 5: Measured by the voltage drop between A and B pins at the indicated current through the switch. On resistance is determined by the lower of the  
voltages on the two (A or B) pins.  
www.fairchildsemi.com  
2
AC Electrical Characteristics  
T
= −40 °C to +85 °C,  
A
C
= 50pF, RU = RD = 500Ω  
L
Symbol  
Parameter  
Units  
Conditions  
Figure No.  
V
= 4.5 – 5.5V  
V
= 4.0V  
CC  
CC  
Min  
Max  
Min  
Max  
t
t
,t  
Prop Delay Bus to Bus(Note 6)  
Output Enable Time  
0.25  
0.25  
ns  
ns  
V = OPEN  
Figure 1  
Figure 2  
PHL PLH  
I
, t  
1.0  
1.0  
5.6  
6.2  
6.1  
V = 7V for t  
I PZL  
PZH PZL  
Figure 1  
Figure 2  
V = OPEN for t  
I
PZH  
t
, t  
Output Disable Time  
5.6  
ns  
V = 7V for t  
I PLZ  
PHZ PLZ  
Figure 1  
Figure 2  
V = OPEN for t  
I
PHZ  
Note 6: This parameter is guaranteed by design but is not tested. The bus switch contributes no propagation delay other than the RC delay of the typical On  
resistance of the switch and the 50pF load capacitance, when driven by an ideal voltage the source (zero output impedance).  
Capacitance (Note 7)  
Symbol  
Parameter  
Typ  
Max  
Units  
Conditions  
= 5.0V  
C
C
Control Pin Input Capacitance  
3
pF  
V
V
IN  
CC  
Input/Output Capacitance  
5
pF  
, OE = 5.0V  
I/O  
CC  
Note 7: T = +25°C, f = 1 MHz, Capacitance is characterized but not tested.  
A
AC Loading and Waveforms  
Note: Input driven by 50 source terminated in 50 Ω  
Note: C includes load and stray capacitance  
L
Note: Input PRR = 1.0 MHz, t = 500 nS  
W
FIGURE 1. AC Test Circuit  
FIGURE 2. AC Waveforms  
3
www.fairchildsemi.com  
Physical Dimensions inches (millimeters) unless otherwise noted  
20-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300 Wide  
Package Number M20B  
20-Lead Quarter Size Outline Package (QSOP), JEDEC MO-137, 0.150 Wide  
Package Number MQA20  
www.fairchildsemi.com  
4
Physical Dimensions inches (millimeters) unless otherwise noted (Continued)  
20-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 4.4mm Wide  
Package Number MTC20  
Technology Description  
The Fairchild Switch family derives from and embodies Fairchild’s proven switch technology used for several years in its  
74LVX3L384 (FST3384) bus switch product.  
Fairchild does not assume any responsibility for use of any circuitry described, no circuit patent licenses are implied and  
Fairchild reserves the right at any time without notice to change said circuitry and specifications.  
LIFE SUPPORT POLICY  
FAIRCHILD’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT  
DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT OF FAIRCHILD  
SEMICONDUCTOR CORPORATION. As used herein:  
1. Life support devices or systems are devices or systems  
which, (a) are intended for surgical implant into the  
body, or (b) support or sustain life, and (c) whose failure  
to perform when properly used in accordance with  
instructions for use provided in the labeling, can be rea-  
sonably expected to result in a significant injury to the  
user.  
2. A critical component in any component of a life support  
device or system whose failure to perform can be rea-  
sonably expected to cause the failure of the life support  
device or system, or to affect its safety or effectiveness.  
www.fairchildsemi.com  
5
www.fairchildsemi.com  
June 1997  
Revised December 1999  
FST3245  
Octal Bus Switch  
General Description  
Features  
The Fairchild Switch FST3245 provides 8-bits of high-  
speed CMOS TTL-compatible bus switching in a standard  
’245 pin-out. The low on resistance of the switch allows  
inputs to be connected to outputs without adding propaga-  
tion delay or generating additional ground bounce noise.  
4switch connection between two ports.  
Minimal propagation delay through the switch.  
Low lCC  
.
Zero bounce in flow-through mode.  
Control inputs compatible with TTL level.  
The device is organized as an 8-bit switch. When OE is  
LOW, the switch is ON and Port A is connected to Port B.  
When OE is HIGH, the switch is OPEN and a high-imped-  
ance state exists between the two ports.  
Ordering Code:  
Order Number  
FST3245WM  
FST3245QSC  
FST3245MTC  
Package Number  
M20B  
Package Description  
20-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300 Wide  
20-Lead Quarter Size Outline Package (QSOP), JEDEC MO-137, 0.150 Wide  
20-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 4.4mm Wide  
MQA20  
MTC20  
Devices also available in Tape and Reel. Specify by appending the suffix letter “X” to the ordering code.  
Logic Diagram  
Connection Diagram  
Truth Table  
Pin Descriptions  
Pin Name  
Description  
Input OE  
Function  
Connect  
OE  
A
Bus Switch Enable  
Bus A  
L
H
Disconnect  
B
Bus B  
© 1999 Fairchild Semiconductor Corporation  
DS500020  
www.fairchildsemi.com  
 
Absolute Maximum Ratings(Note 1)  
Recommended Operating  
Conditions (Note 3)  
Supply Voltage (VCC  
)
0.5V to +7.0V  
0.5V to +7.0V  
0.5V to +7.0V  
50mA  
DC Switch Voltage (VS)  
Power Supply Operating (VCC  
Input Voltage (VIN  
Output Voltage (VOUT  
)
4.0V to 5.5V  
0V to 5.5V  
0V to 5.5V  
DC Input Voltage (VIN) (Note 2)  
DC Input Diode Current (lIK) VIN < 0V  
DC Output (IOUT) Sink Current  
)
)
128mA  
Input Rise and Fall Time (tr, tf)  
Switch Control Input  
DC VCC/GND Current (ICC/IGND  
)
+/100mA  
0nS/V to 5nS/V  
0nS/V to DC  
Storage Temperature Range (TSTG  
)
65°C to +150 °C  
Switch I/O  
Free Air Operating Temperature (TA)  
40 °C to +85 °C  
Note 1: The Absolute Maximum Ratings are those values beyond which  
the safety of the device cannot be guaranteed. The device should not be  
operated at these limits. The parametric values defined in the Electrical  
Characteristics tables are not guaranteed at the absolute maximum rating.  
The “Recommended Operating Conditions” table will define the conditions  
for actual device operation.  
Note 2: The input and output negative voltage ratings may be exceeded if  
the input and output diode current ratings are observed.  
Note 3: Unused control inputs must be held HIGH or LOW. They may not  
float.  
DC Electrical Characteristics  
T
= −40 °C to +85 °C  
A
V
(V)  
CC  
Symbol  
Parameter  
Units  
Conditions  
Typ  
Min  
Max  
(Note 4)  
V
V
V
Clamp Diode Voltage  
HIGH Level Input Voltage  
LOW Level Input Voltage  
Input Leakage Current  
OFF-STATE Leakage Current  
Switch On Resistance  
(Note 5)  
4.5  
4.0–5.5  
4.0–5.5  
5.5  
1.2  
V
V
I
= −18 mA  
IN  
IK  
2.0  
IH  
IL  
0.8  
±1.0  
±1.0  
7
V
I
I
µA  
µA  
0V 5.5V  
IN  
I
5.5  
0 A, B V  
CC  
OZ  
R
4.5  
4
4
V
V
V
V
V
= 0V, I = 64 mA  
IN  
ON  
IN  
IN  
IN  
IN  
IN  
4.5  
7
= 0V, I = 30 mA  
IN  
4.5  
8
15  
20  
3
= 2.4V, I = 15 mA  
IN  
4.0  
11  
= 2.4V, I = 15 mA  
IN  
I
Quiescent Supply Current  
5.5  
µA  
mA  
= V or GND, I  
= 0  
CC  
CC  
OUT  
I  
Increase in I per Input  
5.5  
2.5  
One input at 3.4V  
Other inputs at V or GND  
CC  
CC  
CC  
Note 4: Typical values are at V = 5.0V and T = +25°C  
CC  
A
Note 5: Measured by the voltage drop between A and B pins at the indicated current through the switch. On resistance is determined by the lower of the  
voltages on the two (A or B) pins.  
www.fairchildsemi.com  
2
AC Electrical Characteristics  
T
= −40 °C to +85 °C,  
A
C
= 50pF, RU = RD = 500Ω  
L
Symbol  
Parameter  
Units  
Conditions  
Figure No.  
V
= 4.5 – 5.5V  
V
= 4.0V  
CC  
CC  
Min  
Max  
Min  
Max  
t
t
,t  
Prop Delay Bus to Bus (Note 6)  
Output Enable Time  
0.25  
0.25  
ns  
ns  
V = OPEN  
Figure 1  
Figure 2  
PHL PLH  
I
, t  
1.5  
1.5  
5.9  
6.0  
6.4  
V = 7V for t  
PZL  
Figure 1  
Figure 2  
PZH PZL  
I
V = OPEN for t  
I
PZH  
PHZ  
t
, t  
Output Disable Time  
5.7  
ns  
V = 7V for t  
PLZ  
Figure 1  
Figure 2  
PHZ PLZ  
I
V = OPEN for t  
I
Note 6: This parameter is guaranteed by design but is not tested. The bus switch contributes no propagation delay other than the RC delay of the typical On  
resistance of the switch and the 50pF load capacitance, when driven by an ideal voltage the source (zero output impedance).  
Capacitance (Note 7)  
Symbol  
Parameter  
Control Pin Input Capacitance  
Input/Output Capacitance  
Typ  
3
Max  
Units  
pF  
Conditions  
= 5.0V  
C
V
V
IN  
CC  
C
5
pF  
, OE = 5.0V  
I/O  
CC  
Note 7: T = +25°C, f = 1 MHz, Capacitance is characterized but not tested.  
A
AC Loading and Waveforms  
Note: Input driven by 50 source terminated in 50 Ω  
Note: C includes load and stray capacitance  
L
Note: Input PRR = 1.0 MHz t = 500 ns  
W
FIGURE 1. AC Test Circuit  
FIGURE 2. AC Waveforms  
3
www.fairchildsemi.com  
Physical Dimensions inches (millimeters) unless otherwise noted  
20-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300 Wide  
Package Number M20B  
20-Lead Quarter Size Outline Package (QSOP), JEDEC MO-137, 0.150 Wide  
Package Number MQA20  
www.fairchildsemi.com  
4
Physical Dimensions inches (millimeters) unless otherwise noted (Continued)  
20-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 4.4mm Wide  
Package Number MTC20  
Technology Description  
The Fairchild Switch family derives from and embodies Fairchild’s proven switch technology used for several years in its  
74LVX3L384 (FST3384) bus switch product.  
5
www.fairchildsemi.com  
Fairchild does not assume any responsibility for use of any circuitry described, no circuit patent licenses are implied and  
Fairchild reserves the right at any time without notice to change said circuitry and specifications.  
LIFE SUPPORT POLICY  
FAIRCHILD’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT  
DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT OF FAIRCHILD  
SEMICONDUCTOR CORPORATION. As used herein:  
1. Life support devices or systems are devices or systems  
which, (a) are intended for surgical implant into the  
body, or (b) support or sustain life, and (c) whose failure  
to perform when properly used in accordance with  
instructions for use provided in the labeling, can be rea-  
sonably expected to result in a significant injury to the  
user.  
2. A critical component in any component of a life support  
device or system whose failure to perform can be rea-  
sonably expected to cause the failure of the life support  
device or system, or to affect its safety or effectiveness.  
www.fairchildsemi.com  
www.fairchildsemi.com  
6
September 1997  
Revised December 1999  
FST3253  
Dual 4:1 Multiplexer/Demultiplexer Bus Switch  
General Description  
Features  
The Fairchild Switch FST3253 is a dual 4:1 high-speed  
CMOS TTL-compatible multiplexer/demultiplexer bus  
switch. The low on resistance of the switch allows inputs to  
be connected to outputs without adding propagation delay  
or generating additional ground bounce noise.  
4switch connection between two ports.  
Minimal propagation delay through the switch.  
Low lCC  
.
Zero bounce in flow-through mode.  
Control inputs compatible with TTL level.  
When OE is LOW, S0 and S1 connect the A Port to the  
selected B Port output. When OE is HIGH, the switch is  
OPEN and a high-impedance state exists between the two  
ports.  
Ordering Code:  
Order Number  
FST3253M  
Package Number  
M16A  
Package Description  
16-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-012, 0.150 Narrow  
16-Lead Quarter Size Outline Package (QSOP), JEDEC MO-137, 0.150 Wide  
16-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 4.4mm Wide  
FST3253QSC  
FST3253MTC  
MQA16  
MTC16  
Device also available in Tape and Reel. Specify by appending suffix letter “X” to the ordering code.  
Logic Diagram  
Connection Diagram  
Truth Table  
S1  
S0  
OE1  
OE2  
Function  
Disconnect 1A  
Disconnect 2A  
A = B1  
Pin Descriptions  
X
X
L
X
X
L
H
X
L
L
L
L
X
H
L
L
L
L
Pin Name  
Description  
OE1, OE2  
S0, S1  
Bus Switch Enables  
Select Inputs  
Bus A  
L
H
L
A = B2  
H
H
A = B3  
A
H
A = B4  
B1, B2, B3, B4  
Bus B  
© 1999 Fairchild Semiconductor Corporation  
DS500058  
www.fairchildsemi.com  
 
Absolute Maximum Ratings(Note 1)  
Recommended Operating  
Conditions (Note 3)  
Supply Voltage (VCC  
)
0.5V to +7.0V  
0.5V to +7.0V  
0.5V to +7.0V  
50mA  
DC Switch Voltage (VS)  
Power Supply Operating (VCC)  
4.0V to 5.5V  
0V to 5.5V  
0V to 5.5V  
DC Input Voltage (VIN)(Note 2)  
DC Input Diode Current (lIK) VIN<0V  
DC Output (IOUT) Sink Current  
Input Voltage (VIN  
)
Output Voltage (VOUT  
)
128mA  
Input Rise and Fall Time (tr, tf)  
Switch Control Input  
DC VCC/GND Current (ICC/IGND  
)
+/100mA  
0ns/V to 5ns/V  
0ns/V to DC  
Storage Temperature Range (TSTG  
)
65°C to +150 °C  
Switch I/O  
Free Air Operating Temperature (TA)  
40 °C to 85 °C  
Note 1: The Absolute Maximum Ratings are those values beyond which  
the safety of the device cannot be guaranteed. The device should not be  
operated at these limits. The parametric values defined in the Electrical  
Characteristics tables are not guaranteed at the absolute maximum rating.  
The Recommended Operating Conditions tables will define the conditions  
for actual device operation.  
Note 2: The input and output negative voltage ratings may be exceeded if  
the input and output diode current ratings are observed.  
Note 3: Unused control inputs must be held HIGH or LOW. They may not  
float.  
DC Electrical Characteristics  
T
A = −40 °C to +85 °C  
VCC  
(V)  
Symbol  
Parameter  
Units  
Conditions  
Typ  
Min  
Max  
(Note 4)  
VIK  
Clamp Diode Voltage  
High Level Input Voltage  
Low Level Input Voltage  
Input Leakage Current  
OFF-STATE Leakage Current  
Switch On Resistance  
(Note 5)  
4.5  
4.0–5.5  
4.0–5.5  
5.5  
1.2  
V
V
IIN = −18mA  
VIH  
VIL  
II  
2.0  
0.8  
±1.0  
±1.0  
7
V
µA  
µA  
0VIN 5.5V  
0 A, B VCC  
IOZ  
RON  
5.5  
4.5  
4
4
V
V
V
V
V
IN = 0V, IIN = 64mA  
4.5  
7
IN = 0V, IIN = 30mA  
4.5  
8
15  
20  
3
IN = 2.4V, IIN = 15mA  
IN = 2.4V, IIN = 15mA  
IN = VCC or GND, IOUT = 0  
4.0  
11  
ICC  
Quiescent Supply Current  
Increase in ICC per Input  
5.5  
µA  
mA  
ICC  
5.5  
2.5  
One input at 3.4V  
Other inputs at VCC or GND  
Note 4: Typical values are at VCC = 5.0V and TA = +25°C  
Note 5: Measured by the voltage drop between A and B pins at the indicated current through the switch. On resistance is determined by the lower of the  
voltages on the two (A or B) pins.  
www.fairchildsemi.com  
2
AC Electrical Characteristics  
TA = −40 °C to +85 °C  
CL = 50pF, RU = RD = 500Ω  
Symbol  
Parameter  
Units  
Conditions  
Figure No.  
V
CC = 4.5 – 5.5V CC = 4.0V  
V
Min  
Max  
0.25  
5.3  
Min  
Max  
0.25  
6.3  
t
PHL,tPLH  
tPZH, tPZL  
tPHZ, tPLZ  
Prop Delay Bus to Bus (Note 6)  
Prop Delay, Select to Bus A  
VI = OPEN  
Figure 1  
Figure 2  
ns  
ns  
ns  
1.0  
1.0  
1.0  
1.0  
1.0  
Output Enable Time, Select to Bus B  
Output Enable Time, IOE to Bus A, B  
Output Disable Time., Select to Bus B  
Output Disable Time, IOE to Bus A, B  
5.3  
6.0  
VI = 7V for tPZL  
Figure 1  
Figure 2  
5.3  
6.2  
VI = OPEN for tPZH  
VI = 7V for tPLZ  
5.8  
6.2  
Figure 1  
Figure 2  
5.5  
6.2  
VI = OPEN for tPHZ  
Note 6: This parameter is guaranteed by design but is not tested. The bus switch contributes no propagation delay other than the RC delay of the typical On  
resistance of the switch and the 50pF load capacitance, when driven by an ideal voltage the source (zero output impedance).  
Capacitance (Note 7)  
Symbol  
Parameter  
Typ  
Max  
Units  
Conditions  
VCC = 5.0V  
CIN  
CI/O  
Control Pin Input Capacitance  
3
13  
5
pF  
pF  
pF  
A Port  
B Port  
Input/Output Capacitance  
VCC, OE = 5.0V  
Note 7: TA = +25°C, f = 1 MHz, Capacitance is characterized but not tested.  
AC Loading and Waveforms  
Note: Input driven by 50 source terminated in 50 Ω  
Note: CL includes load and stray capacitance  
Note: Input PRR = 1.0 MHz, tW = 500 ns  
FIGURE 1. AC Test Circuit  
FIGURE 2. AC Waveforms  
3
www.fairchildsemi.com  
Physical Dimensions inches (millimeters) unless otherwise noted  
16-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-012, 0.150 Narrow  
Package Number M16A  
16-Lead Quarter Size Outline Package (QSOP), JEDEC MO-137, 0.150 Wide  
Package Number MQA16  
www.fairchildsemi.com  
4
Physical Dimensions inches (millimeters) unless otherwise noted (Continued)  
16-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 4.4mm Wide  
Package Number MTC16  
Technology Description  
The Fairchild Switch family derives from and embodies Fairchild’s proven switch technology used for several years in its  
74LVX3L384 (FST3384) bus switch product.  
Fairchild does not assume any responsibility for use of any circuitry described, no circuit patent licenses are implied and  
Fairchild reserves the right at any time without notice to change said circuitry and specifications.  
LIFE SUPPORT POLICY  
FAIRCHILD’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT  
DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT OF FAIRCHILD  
SEMICONDUCTOR CORPORATION. As used herein:  
1. Life support devices or systems are devices or systems  
which, (a) are intended for surgical implant into the  
body, or (b) support or sustain life, and (c) whose failure  
to perform when properly used in accordance with  
instructions for use provided in the labeling, can be rea-  
sonably expected to result in a significant injury to the  
user.  
2. A critical component in any component of a life support  
device or system whose failure to perform can be rea-  
sonably expected to cause the failure of the life support  
device or system, or to affect its safety or effectiveness.  
www.fairchildsemi.com  
5
www.fairchildsemi.com  
September 1997  
Revised December 1999  
FST3257  
Quad 2:1 Multiplexer/Demultiplexer Bus Switch  
General Description  
Features  
The Fairchild Switch FST3257 is a quad 2:1 high-speed  
CMOS TTL-compatible multiplexer/demultiplexer bus  
switch. The low on resistance of the switch allows inputs to  
be connected to outputs without adding propagation delay  
or generating additional ground bounce noise.  
4switch connection between two ports.  
Minimal propagation delay through the switch.  
Low lCC  
.
Zero bounce in flow-through mode.  
Control inputs compatible with TTL level.  
When OE is LOW, the select pin connects the A Port to the  
selected B Port output. When OE is HIGH, the switch is  
OPEN and a high-impedance state exists between the two  
ports.  
Ordering Code:  
Order Number  
FST3257M  
Package Number  
M16A  
Package Description  
16-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-012, 0.150 Narrow  
16-Lead Quarter Size Outline Package (QSOP), JEDEC MO-137, 0.150 Wide  
16-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 4.4mm Wide  
FST3257QSC  
FST3257MTC  
MQA16  
MTC16  
Device also available in Tape and Reel. Specify by appending suffix letter “X” to the ordering code.  
Logic Diagram  
Connection Diagram  
Pin Descriptions  
Truth Table  
Pin Name  
Description  
S
X
L
OE  
H
Function  
Disconnect  
A = B1  
OE  
S
Bus Switch Enable  
Select Input  
Bus A  
L
A
B1–B2  
Bus B  
H
L
A = B2  
© 1999 Fairchild Semiconductor Corporation  
DS500057  
www.fairchildsemi.com  
 
Absolute Maximum Ratings(Note 1)  
Recommended Operating  
Conditions (Note 3)  
Supply Voltage (VCC  
)
0.5V to +7.0V  
0.5V to +7.0V  
0.5V to +7.0V  
50mA  
DC Switch Voltage (VS)  
Power Supply Operating (VCC  
Input Voltage (VIN  
Output Voltage (VOUT  
)
4.0V to 5.5V  
0V to 5.5V  
0V to 5.5V  
DC Input Voltage (VIN)(Note 2)  
DC Input Diode Current (lIK) VIN<0V  
DC Output (IOUT) Sink Current  
)
)
128mA  
Input Rise and Fall Time (tr, tf)  
Switch Control Input  
DC VCC/GND Current (ICC/IGND  
)
+/100mA  
0nS/V to 5nS/V  
0nS/V to DC  
Storage Temperature Range (TSTG  
)
65°C to +150 °C  
Switch I/O  
Free Air Operating Temperature (TA)  
40 °C to +85 °C  
Note 1: The Absolute Maximum Ratings are those values beyond which  
the safety of the device cannot be guaranteed. The device should not be  
operated at these limits. The parametric values defined in the Electrical  
Characteristics tables are not guaranteed at the absolute maximum rating.  
The Recommended Operating Conditions tables will define the conditions  
for actual device operation.  
Note 2: The input and output negative voltage ratings may be exceeded if  
the input and output diode current ratings are observed.  
Note 3: Unused control inputs must be held HIGH or LOW. They may not  
float.  
DC Electrical Characteristics  
T
A = −40 °C to +85 °C  
VCC  
(V)  
Symbol  
Parameter  
Units  
Conditions  
Typ  
Min  
Max  
(Note 4)  
VIK  
Clamp Diode Voltage  
HIGH Level Input Voltage  
LOW Level Input Voltage  
Input Leakage Current  
OFF-STATE Leakage Current  
Switch On Resistance  
(Note 5)  
4.5  
4.0–5.5  
4.0–5.5  
5.5  
1.2  
V
V
IIN = −18mA  
VIH  
VIL  
II  
2.0  
0.8  
±1.0  
±1.0  
7
V
µA  
µA  
0VIN 5.5V  
0 A, B VCC  
IOZ  
RON  
5.5  
4.5  
4
4
V
V
V
V
V
IN = 0V, IIN = 64mA  
4.5  
7
IN = 0V, IIN = 30mA  
4.5  
8
15  
20  
3
IN = 2.4V, IIN = 15mA  
IN = 2.4V, IIN = 15mA  
IN = VCC or GND, IOUT = 0  
4.0  
11  
ICC  
Quiescent Supply Current  
Increase in ICC per Input  
5.5  
µA  
mA  
ICC  
5.5  
2.5  
One input at 3.4V  
Other inputs at VCC or GND  
Note 4: Typical values are at VCC = 5.0V and TA = +25°C  
Note 5: Measured by the voltage drop between A and B pins at the indicated current through the switch. On resistance is determined by the lower of the  
voltages on the two (A or B) pins.  
www.fairchildsemi.com  
2
AC Electrical Characteristics  
T
A = −40 °C to +85°C,  
L = 50 pF, RU = RD = 500Ω  
CC = 4.5 – 5.5V CC = 4.0V  
C
Symbol  
Parameter  
Units  
Conditions  
Figure No.  
V
V
Min  
Max  
0.25  
4.7  
Min  
Max  
0.25  
5.2  
t
PHL,tPLH Prop Delay Bus to Bus (Note 6)  
Prop Delay, Select to Bus A  
Figure 1  
Figure 2  
ns  
ns  
ns  
VI = OPEN  
1.0  
1.0  
tPZH, tPZL Output Enable Time, Select to Bus B  
5.2  
5.7  
VI = 7V for tPZL  
Figure 1  
Figure 2  
VI = OPEN for tPZH  
Output Enable Time, OE to Bus A, B  
tPHZ, tPLZ Output Disable Time, Select to Bus B  
Output Disable Time, Output Enable Time,  
OE to Bus A, B  
1.0  
1.0  
1.5  
5.1  
5.2  
5.5  
5.6  
5.5  
5.5  
VI = 7V for tPLZ  
Figure 1  
Figure 2  
VI = OPEN for tPHZ  
Note 6: This parameter is guaranteed by design but is not tested. The bus switch contributes no propagation delay other than the RC delay of the typical On  
resistance of the switch and the 50pF load capacitance, when driven by an ideal voltage the source (zero output impedance).  
Capacitance (Note 7)  
Symbol  
Parameter  
Typ  
Max  
Units  
Conditions  
VCC = 5.0V  
CIN  
Control Pin Input Capacitance  
3
pF  
CI/O  
A Port Input/Output Capacitance  
B Port  
7
5
pF  
pF  
VCC, OE = 5.0V  
Note 7: TA = +25°C, f = 1 MHz, Capacitance is characterized but not tested.  
AC Loading and Waveforms  
Note: Input driven by 50 source terminated in 50 Ω  
Note: CL includes load and stray capacitance  
Note: Input PRR = 1.0 MHz, tW = 500 ns  
FIGURE 1. AC Test Circuit  
FIGURE 2. AC Waveforms  
3
www.fairchildsemi.com  
Physical Dimensions inches (millimeters) unless otherwise noted  
16-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-012, 0.150 Narrow  
Package Number M16A  
16-Lead Quarter Size Outline Package (QSOP), JEDEC MO-137, 0.150 Wide  
Package Number MQA16  
www.fairchildsemi.com  
4
Physical Dimensions inches (millimeters) unless otherwise noted (Continued)  
16-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 4.4mm Wide  
Package Number MTC16  
Technology Description  
The Fairchild Switch family derives from and embodies Fairchild’s proven switch technology used for several years in its  
74LVX3L384 (FST3384) bus switch product.  
Fairchild does not assume any responsibility for use of any circuitry described, no circuit patent licenses are implied and  
Fairchild reserves the right at any time without notice to change said circuitry and specifications.  
LIFE SUPPORT POLICY  
FAIRCHILD’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT  
DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT OF FAIRCHILD  
SEMICONDUCTOR CORPORATION. As used herein:  
1. Life support devices or systems are devices or systems  
which, (a) are intended for surgical implant into the  
body, or (b) support or sustain life, and (c) whose failure  
to perform when properly used in accordance with  
instructions for use provided in the labeling, can be rea-  
sonably expected to result in a significant injury to the  
user.  
2. A critical component in any component of a life support  
device or system whose failure to perform can be rea-  
sonably expected to cause the failure of the life support  
device or system, or to affect its safety or effectiveness.  
www.fairchildsemi.com  
5
www.fairchildsemi.com  
June 1997  
Revised December 1999  
FST3345  
8-Bit Bus Switch  
General Description  
Features  
The Fairchild Switch FST3345 provides 8-bits of high-  
speed CMOS TTL-compatible bus switching. The low on  
resistance of the switch allows inputs to be connected to  
outputs without adding propagation delay or generating  
additional ground bounce noise.  
4switch connection between two ports.  
Minimal propagation delay through the switch.  
Low lCC  
.
Zero bounce in flow-through mode.  
Control inputs compatible with TTL level.  
The device is organized as an 8-bit switch bank with dual  
output enable inputs (OE and OE). When OE is LOW or  
OE is HIGH, the switch is ON and Port A is connected to  
Port B. When OE is HIGH and OE is LOW, the switch is  
OPEN and a high-impedance state exists between the two  
ports.  
Ordering Code:  
Order Number  
FST3345WM  
FST3345QSC  
FST3345MTC  
Package Number  
M20B  
Package Description  
20-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300 Wide  
20-Lead Quarter Size Outline Package (QSOP), JEDEC MO-137, 0.150 Wide  
20-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 4.4mm Wide  
MQA20  
MTC20  
Devices also available in Tape and Reel. Specify by appending the suffix letter “X” to the ordering code.  
Logic Diagram  
Connection Diagram  
Pin Descriptions  
Truth Table  
Pin Name  
Description  
Inputs  
Function  
OE, OE  
Bus Switch Enables  
Bus A  
OE  
X
OE  
L
A
B
Connect  
Connect  
Bus B  
H
X
L
H
Disconnect  
© 1999 Fairchild Semiconductor Corporation  
DS500019  
www.fairchildsemi.com  
 
Absolute Maximum Ratings(Note 1)  
Recommended Operating  
Conditions (Note 3)  
Supply Voltage (VCC  
)
0.5V to +7.0V  
0.5V to +7.0V  
0.5V to +7.0V  
50mA  
DC Switch Voltage (VS)  
Power Supply Operating (VCC  
Input Voltage (VIN  
Output Voltage (VOUT  
)
4.0V to 5.5V  
0V to 5.5V  
0V to 5.5V  
DC Input Voltage (VIN) (Note 2)  
DC Input Diode Current (lIK) VIN<0V  
DC Output (IOUT) Sink Current  
)
)
128mA  
Input Rise and Fall Time (tr, tf)  
Switch Control Input  
DC VCC/GND Current (ICC/IGND  
)
+/100mA  
0nS/V to 5nS/V  
0nS/V to DC  
Storage Temperature Range (TSTG  
)
65°C to +150 °C  
Switch I/O  
Free Air Operating Temperature (TA)  
40 °C to +85 °C  
Note 1: The Absolute Maximum Ratings are those values beyond which  
the safety of the device cannot be guaranteed. The device should not be  
operated at these limits. The parametric values defined in the Electrical  
Characteristics tables are not guaranteed at the absolute maximum rating.  
The “Recommended Operating Conditions” table will define the conditions  
for actual device operation.  
Note 2: The input and output negative voltage ratings may be exceeded if  
the input and output diode current ratings are observed.  
Note 3: Unused control inputs must be held HIGH or LOW. They may not  
float.  
DC Electrical Characteristics  
T
A = −40 °C to +85 °C  
VCC  
(V)  
Symbol  
Parameter  
Units  
Conditions  
Typ  
Min  
Max  
(Note 4)  
VIK  
Clamp Diode Voltage  
HIGH Level Input Voltage  
LOW Level Input Voltage  
Input Leakage Current  
OFF-STATE Leakage Current  
Switch On Resistance  
(Note 5)  
4.5  
4.0–5.5  
4.0–5.5  
5.5  
1.2  
V
V
IIN = -18mA  
VIH  
VIL  
II  
2.0  
0.8  
±1.0  
±1.0  
7
V
µA  
µA  
0VIN 5.5V  
0 A, B VCC  
IOZ  
RON  
5.5  
4.5  
4
4
V
V
V
V
V
IN = 0V, IIN = 64mA  
4.5  
7
IN = 0V, IIN = 30mA  
4.5  
8
15  
20  
3
IN = 2.4V, IIN = 15mA  
IN = 2.4V, IIN = 15mA  
IN = VCC or GND, IOUT = 0  
4.0  
11  
ICC  
Quiescent Supply Current  
Increase in ICC per Input  
5.5  
µA  
mA  
ICC  
5.5  
2.5  
One input at 3.4V  
Other inputs at VCC or GND  
Note 4: Typical values are at VCC = 5.0V and TA = +25°C  
Note 5: Measured by the voltage drop between A and B pins at the indicated current through the switch. On resistance is determined by the lower of the  
voltages on the two (A or B) pins.  
www.fairchildsemi.com  
2
AC Electrical Characteristics  
T
A = −40 °C to +85 °C,  
CL = 50 pF, RU = RD = 500Ω  
Symbol  
Parameter  
Units  
Conditions  
Figure No.  
V
CC = 4.5 5.5V CC = 4.0V  
V
Min  
Max  
Min  
Max  
t
PHL,tPLH  
Prop Delay Bus to Bus (Note 6)  
Output Enable Time  
0.25  
0.25  
ns  
ns  
VI = OPEN  
Figure 1  
Figure 2  
tPZH, tPZL  
1.5  
1.0  
6.5  
8.0  
7.0  
8.2  
VI = 7V for tPZL  
Figure 1  
Figure 2  
VI = OPEN for tPZH  
VI = 7V for tPLZ  
tPHZ, tPLZ  
Output Disable Time  
ns  
Figure 1  
Figure 2  
VI = OPEN for tPHZ  
Note 6: This parameter is guaranteed by design but is not tested. The bus switch contributes no propagation delay other than the RC delay of the typical On  
resistance of the switch and the 50pF load capacitance, when driven by an ideal voltage the source (zero output impedance).  
Capacitance (Note 7)  
Symbol  
CIN  
CI/O  
Parameter  
Control Pin Input Capacitance  
Input/Output Capacitance  
Typ  
4
Max  
Units  
pF  
Conditions  
CC = 5.0V  
VCC, OE = 5.0V, OE = 0V  
V
5
pF  
Note 7: TA = +25°C, f = 1 MHz, Capacitance is characterized but not tested.  
AC Loading and Waveforms  
Note: Input driven by 50 source terminated in 50 Ω  
Note: CL includes load and stray capacitance  
Note: Input PRR = 1.0 MHz tW = 500 nS  
FIGURE 1. AC Test Circuit  
FIGURE 2. AC Waveforms  
3
www.fairchildsemi.com  
Physical Dimensions inches (millimeters) unless otherwise noted  
20-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300 Wide  
Package Number M20B  
20-Lead Quarter Size Outline Package (QSOP), JEDEC MO-137, 0.150 Wide  
Package Number MQA20  
www.fairchildsemi.com  
4
Physical Dimensions inches (millimeters) unless otherwise noted (Continued)  
20-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 4.4mm Wide  
Package Number MTC20  
Technology Description  
The Fairchild Switch family derives from and embodies Fairchild’s proven switch technology used for several years in its  
74LVX3L384 (FST3384) bus switch product.  
5
www.fairchildsemi.com  
Fairchild does not assume any responsibility for use of any circuitry described, no circuit patent licenses are implied and  
Fairchild reserves the right at any time without notice to change said circuitry and specifications.  
LIFE SUPPORT POLICY  
FAIRCHILD’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT  
DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT OF FAIRCHILD  
SEMICONDUCTOR CORPORATION. As used herein:  
1. Life support devices or systems are devices or systems  
which, (a) are intended for surgical implant into the  
body, or (b) support or sustain life, and (c) whose failure  
to perform when properly used in accordance with  
instructions for use provided in the labeling, can be rea-  
sonably expected to result in a significant injury to the  
user.  
2. A critical component in any component of a life support  
device or system whose failure to perform can be rea-  
sonably expected to cause the failure of the life support  
device or system, or to affect its safety or effectiveness.  
www.fairchildsemi.com  
www.fairchildsemi.com  
6
December 1993  
Revised May 1999  
FST3383  
10-Bit Low Power Bus-Exchange Switch  
General Description  
Features  
The FST3383 provides two sets of high-speed CMOS TTL-  
compatible bus switches. The low on resistance of the  
switch allows inputs to be connected to outputs without  
adding propagation delay or generating additional ground  
bounce noise. The device operates as a 10-bit bus switch  
or a 5-bit bus exchanger. The bus exchange (BX) signal  
provides nibble swapping of the AB and CD pairs of sig-  
nals. This exchange configuration allows byte swapping of  
buses in systems. It can also be used as a quad 2-to-1  
multiplexer and to create low delay barrel shifters. The bus  
enable (BE) signal turns the switches ON.  
5switch connection between two ports  
Zero propagation delay  
Ultra low power with 0.2 µA typical ICC  
Zero ground bounce in flow-through mode  
Control inputs compatible with TTL level  
Ordering Code:  
Order Number  
FST3383WM  
FST3383QSC  
FST3383MTC  
Package Number  
M24B  
Package Description  
24-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300 Wide  
24-Lead Quarter Size Outline Package (QSOP), JEDEC MO-137, 0.150 Wide  
24-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 4.4mm Wide  
MQA24  
MTC24  
Devices also available in Tape and Reel. Specify by appending the suffix letter “X” to the ordering code.  
Logic Diagram  
Connection Diagram  
Pin Descriptions  
Truth Table  
Pin Names  
Description  
A0–A4  
B0–B4  
BE BX  
Function  
Bus Switch Enable  
BE  
H
L
L
X
L
High-Z State High-Z State Disconnect  
BX  
Bus Exchange  
Buses A, B  
C0–C4  
D0– D4  
C0–C4  
Connect  
A0–A4, B0–B4  
C0–C4, D0–D4  
H
D0–D4  
Exchange  
Buses C, D  
© 1999 Fairchild Semiconductor Corporation  
DS011652.prf  
www.fairchildsemi.com  
 
Absolute Maximum Ratings(Note 1)  
Recommended Operating  
Conditions  
Supply Voltage (VCC  
)
0.5V to +7.0V  
0.5V to +7.0V  
0.5V to +7.0V  
DC Switch Voltage (VS)  
Supply Voltage (VCC  
)
4.0V to 5.5V  
DC Input Voltage (VI) (Note 2)  
Free Air Operating Temperature (TA)  
40°C to +85°C  
DC Input Diode Current (IIN  
with VI < 0  
)
Note 1: The “Absolute Maximum Ratings” are those values beyond which  
the safety of the device cannot be guaranteed. The device should not be  
operated at these limits. The parametric values defined in the Electrical  
Characteristics tables are not guaranteed at the absolute maximum ratings.  
The “Recommended Operating Conditions” table will define the conditions  
for actual device operation.  
20 mA  
120 mA  
DC Output (IO) Sink Current  
Storage Temperature Range (TSTG  
Power Dissipation  
)
65°C to +150°C  
0.5W  
Note 2: The input and output negative voltage ratings may be exceeded if  
the input and output diode current ratings are observed.  
DC Electrical Characteristics  
T
= −40°C to +85°C  
A
V
(V)  
CC  
Symbol  
Parameter  
Units  
Conditions  
Min  
Typ  
Max  
(Note 3)  
V
V
V
Maximum Clamp Diode Voltage  
Minimum High Level Input Voltage  
Maximum Low Level Input Voltage  
Maximum Input  
4.75  
4.75–5.25  
4.75–5.25  
0
1.2  
V
V
I
= −18 mA  
IN  
IK  
2.0  
IH  
IL  
0.8  
10  
V
I
µA  
0 V 5.25V  
IN  
IN  
Leakage Current  
5.25  
±1  
I
I
Maximum 3-STATE I/O Leakage  
Short Circuit Current  
5.25  
±10  
µA  
mA  
0 A, B V  
CC  
OZ  
OS  
4.75  
100  
V (A), V (B) = 0V, V (B), V (A) = 4.75V  
I I I I  
R
Switch On Resistance (Note 4)  
4.75  
5
7
V = 0V, I = 30 mA  
I ON  
ON  
10  
0.2  
15  
10  
2.5  
V = 2.4V, I = 15 mA  
I ON  
I
Maximum Quiescent Supply Current  
5.25  
5.25  
µA  
mA  
V = V , GND, I = 0  
CC  
I
CC  
O
I  
Increase in I per Input (Note 5)  
V
= 3.15V, I = 0, Per Control Input  
O
CC  
CC  
IN  
Note 3: All typical values are at V = 5.0V, T = 25°C.  
CC  
A
Note 4: Measured by voltage drop between A and B pin at indicated current through the switch. On resistance is determined by the lower of the voltages on  
the two (A or B) pins.  
Note 5: Per TTL driven input (V = 3.15V, control inputs only). A and B pins do not contribute to I  
.
CC  
IN  
www.fairchildsemi.com  
2
AC Electrical Characteristics  
T
= −40°C to +85°C, C = 50 pF  
L
A
V
(V)  
CC  
Symbol  
Parameter  
Units  
ns  
Min  
Typ  
Max  
(Note 6)  
t
t
t
t
t
t
t
t
,
,
Data Propagation Delay  
to C , D or B to D , C (Note 7)  
4.75  
0.25  
6.5  
PLH  
PHL  
PLH  
PHL  
A
n
n
n
n
n
n
Switch Exchange Time  
BX to A , B , C , D  
4.75  
4.75  
4.75  
1.5  
1.5  
1.5  
ns  
n
n
n
n
,
Switch Enable Time  
BE to A , B , C or D  
n
6.5  
ns  
PZL  
PZH  
n
n
n
,
Switch Disable Time  
BE to A , B , C , or D  
n
5.5  
ns  
PLZ  
PHZ  
n
n
n
Note 6: All typical values are at V = 5.0V, T = 25°C.  
CC  
A
Note 7: This parameter is guaranteed by design but not tested. The bus switch contributes no propagation delay other than the RC delay of the On resis-  
tance of the switch and the load capacitance. The time constant for the switch and alone is of the order of 0.25 ns for 50 pF load. Since this time constant is  
much smaller than the rise/fall times of typical driving signals, it adds very little propagation delay to the system. Propagation delay of the bus switch when  
used in a system is determined by the driving circuit on the driving side of the switch and its interaction with the load on the driven side.  
Capacitance (Note 8)  
Symbol  
Parameter  
Control Input Capacitance  
Input/Output Capacitance  
Typ  
4
Max  
6
Units  
pF  
Conditions  
C
C
V
V
= 5.0V  
= 5.0V  
IN  
CC  
CC  
(OFF)  
9
13  
pF  
I/O  
Note 8: Capacitance is characterized but not tested.  
On-Resistance (RON) vs Input Voltage  
(VCC = 5.0V)  
3
www.fairchildsemi.com  
Physical Dimensions inches (millimeters) unless otherwise noted  
24-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300 Wide  
Package Number M24B  
24-Lead Quarter Size Outline Package (QSOP), JEDEC MO-137, 0.150 Wide  
Package Number MQA24  
www.fairchildsemi.com  
4
Physical Dimensions inches (millimeters) unless otherwise noted (Continued)  
24-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 4.4mm Wide  
Package Number MTC24  
Technology Description  
The Fairchild Switch family derives from and embodies Fairchild’s proven switch technology used for several years in its  
74LVX3L384 (FST3384) bus switch product.  
LIFE SUPPORT POLICY  
FAIRCHILD’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT  
DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT OF FAIRCHILD  
SEMICONDUCTOR CORPORATION. As used herein:  
1. Life support devices or systems are devices or systems  
which, (a) are intended for surgical implant into the  
body, or (b) support or sustain life, and (c) whose failure  
to perform when properly used in accordance with  
instructions for use provided in the labeling, can be rea-  
sonably expected to result in a significant injury to the  
user.  
2. A critical component in any component of a life support  
device or system whose failure to perform can be rea-  
sonably expected to cause the failure of the life support  
device or system, or to affect its safety or effectiveness.  
www.fairchildsemi.com  
Fairchild does not assume any responsibility for use of any circuitry described, no circuit patent licenses are implied and Fairchild reserves the right at any time without notice to change said circuitry and specifications.  
September 1997  
Revised December 1999  
FST3384  
10-Bit Low Power Bus Switch  
General Description  
Features  
4switch connection between two ports  
Minimal propagation delay through the switch  
Ultra low power with < 0.1 µA typical ICC  
The Fairchild Switch FST3384 provides 10 bits of high-  
speed CMOS TTL-compatible bus switches. The low on  
resistance of the switch allows inputs to be connected to  
outputs without adding propagation delay or generating  
additional ground bounce noise. The device is organized  
as two 5-bit switches with separate bus enable (OE) sig-  
nals. When OE is LOW, the switch is ON and Port A is con-  
nected to Port B. When OE is HIGH, the switch is OPEN  
and a high-impedance state exists between the two ports.  
Zero ground bounce in flow-through mode  
Control inputs compatible with TTL level  
Ordering Code:  
Order Number  
FST3384WM  
FST3384QSC  
FST3384MTC  
Package Number  
M24B  
Package Description  
24-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300 Wide  
24-Lead Quarter Size Outline Package (QSOP), JEDEC MO-137, 0.150 Wide  
24-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 4.4mm Wide  
MQA24  
MTC24  
Devices also available in Tape and Reel. Specify by appending the suffix letter “X” to the ordering code.  
Logic Diagram  
Connection Diagram  
Truth Table  
Pin Descriptions  
Pin Names  
Description  
OEA OEB  
B0–B4  
B5–B9  
Function  
OEA, OEB  
Bus Switch Enable  
Bus A  
Bus B  
L
L
L
H
L
A0–A4  
A0–A4  
HIGH-Z State A5–A9  
A5–A9  
Connect  
Connect  
Connect  
A0–A9  
B0–B9  
HIGH-Z State  
H
H
H
HIGH-Z State HIGH-Z State Disconnect  
© 1999 Fairchild Semiconductor Corporation  
DS500046  
www.fairchildsemi.com  
Print form created on December 13, 1999 4:03  
 
Absolute Maximum Ratings(Note 1)  
Recommended Operating  
Conditions (Note 3)  
Supply Voltage (VCC  
)
0.5V to +7.0V  
0.5V to +7.0V  
0.5V to +7.0V  
50 mA  
DC Switch Voltage (VS)  
Power Supply Operating (VCC  
Input Voltage (VIN  
Output Voltage (VOUT  
)
4.0V to 5.5V  
0V to 5.5V  
0V to 5.5V  
DC Input Voltage (VIN) (Note 2)  
DC Input Diode Current (IIK) VIN<0V  
DC Output (IOUT) Sink Current  
)
)
128 mA  
Input Rise and Fall Time (tr, tf)  
Switch Control Input  
DC VCC/GND Current (ICC/IGND  
)
+/100mA  
0nS/V to 5nS/V  
0nS/V to DC  
Storage Temperature Range (TSTG  
)
65°C to +150°C  
Switch I/O  
Free Air Operating Temperature (TA)  
40°C to +85°C  
Note 1: The “Absolute Maximum Ratings” are those values beyond which  
the safety of the device cannot be guaranteed. The device should not be  
operated at these limits. The parametric values defined in the “Electrical  
Characteristics” table are not guaranteed at the absolute maximum ratings.  
The “Recommended Operating Conditions” table will define the conditions  
for actual device operation.  
Note 2: The input and output negative voltage ratings may be exceeded if  
the input and output diode current ratings are observed.  
Note 3: Unused control inputs must be held HIGH or LOW. They may not  
float.  
DC Electrical Characteristics  
T
A = −40°C to +85°C  
VCC  
(V)  
Symbol  
Parameter  
Units  
Condition  
Typ  
Min  
Max  
(Note 4)  
VIK  
Clamp Diode Voltage  
HIGH Level Input Voltage  
LOW Level Input Voltage  
Input Leakage Current  
OFF-STATE Leakage Current  
Switch On Resistance  
(Note 5)  
4.5  
4.0-5.5  
4.0-5.5  
5.5  
1.2  
V
V
IIN= − 18mA  
VIH  
VIL  
II  
2.0  
0.8  
±1.0  
±1.0  
7
V
µA  
µA  
0 VIN 5.5V  
0 A, B VCC  
IOZ  
RON  
5.5  
4.5  
4
4
V
V
V
V
V
IN = 0V, IIN = 64mA  
4.5  
7
IN = 0V, IIN = 30mA  
4.5  
8
15  
20  
3
IN = 2.4V, IIN = 15mA  
IN = 2.4V, IIN = 15mA  
IN = VCC or GND, IOUT = 0  
4.0  
11  
ICC  
Quiescent Supply Current  
Increase in ICC per Input  
5.5  
µA  
mA  
ICC  
5.5  
2.5  
One input at 3.4V  
Other inputs at VCC or GND  
Note 4: All typical values are at VCC = 5.0V, TA = 25°C.  
Note 5: Measured by voltage drop between A and B pin at indicated current through the switch. On resistance is determined by the lower of the voltages on  
the two (A or B) pins.  
www.fairchildsemi.com  
2
AC Electrical Characteristics  
T
A = −40°C to +85°C  
L = 50 pF, RU = RD = 500Ω  
CC = 4.0V  
C
Symbol  
Parameter  
Units  
Conditions  
Figure No.  
V
CC = 4.5 5.5V  
V
Min  
Max  
Min  
Max  
t
PHL, tPLH  
Prop Delay Bus to Bus (Note 6)  
0.25  
0.25  
ns  
ns  
VI = OPEN  
Figure 1  
Figure 2  
tPZH, tPZL  
Output Enable Time  
OEA, OEB to An, Bn  
Output Disable Time  
OEA, OEB to An, Bn  
1.0  
1.5  
5.7  
5.2  
6.2  
5.5  
VI = 7V for tPZL  
Figure 1  
Figure 2  
VI = OPEN for tPZH  
II = 7V for tPLZ  
tPHZ, tPLZ  
ns  
Figure 1  
Figure 2  
VI = OPEN for tPHZ  
Note 6: This parameter is guaranteed by design but not tested. The bus switch contributes no propagation delay other than the RC delay of the typical On  
resistance of the switch and the 50pF load capacitance, when driven by an ideal voltage the source (zero output impedance).  
Capacitance (Note 7)  
Symbol  
CIN  
CI/O (OFF)  
Parameter  
Control Input Capacitance  
Input/Output Capacitance  
Typ  
3
Max  
6
Units  
pF  
Conditions  
CC = 5.0V  
VCC, OE = 5.0V  
V
5
13  
pF  
Note 7: Capacitance is characterized but not tested.  
AC Loading and Waveforms  
FST3384 VIN vs RON (Typ)  
Note: Input driven by 50 source terminated in 50 Ω  
Note: CL includes load and stray capacitance  
Note: Input PRR = 1.0 MHz, tW = 500 nS  
FIGURE 1. AC Test Circuit  
FIGURE 2. AC Waveforms  
3
www.fairchildsemi.com  
Physical Dimensions inches (millimeters) unless otherwise noted  
24-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300 Wide  
Package Number M24B  
24-Lead Quarter Size Outline Package (QSOP), JEDEC MO-137, 0.150 Wide  
Package Number MQA24  
www.fairchildsemi.com  
4
Physical Dimensions inches (millimeters) unless otherwise noted (Continued)  
24-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 4.4mm Wide  
Package Number MTC24  
Technology Description  
The Fairchild Switch family derives from and embodies Fairchild’s proven switch technology used for several years in its  
74LVX3L384 (FST3384) bus switch product.  
Fairchild does not assume any responsibility for use of any circuitry described, no circuit patent licenses are implied and  
Fairchild reserves the right at any time without notice to change said circuitry and specifications.  
LIFE SUPPORT POLICY  
FAIRCHILD’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT  
DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT OF FAIRCHILD  
SEMICONDUCTOR CORPORATION. As used herein:  
1. Life support devices or systems are devices or systems  
which, (a) are intended for surgical implant into the  
body, or (b) support or sustain life, and (c) whose failure  
to perform when properly used in accordance with  
instructions for use provided in the labeling, can be rea-  
sonably expected to result in a significant injury to the  
user.  
2. A critical component in any component of a life support  
device or system whose failure to perform can be rea-  
sonably expected to cause the failure of the life support  
device or system, or to affect its safety or effectiveness.  
www.fairchildsemi.com  
5
www.fairchildsemi.com  
February 1998  
FST3384A  
10-Bit Low Power Extended Input Voltage Bus Switch  
Typical applications include IDE bus connector interfaces,  
PCI card interfaces, backplane card interfaces, and other  
noisy environments where switches are needed.  
General Description  
The FST3384A provides 10 bits of high-speed CMOS  
TTL-compatible bus switches. The low on resistance of the  
switch allows inputs to be connected to outputs without add-  
ing propagation delay or generating additional ground  
bounce noise. The device is organized as two 5-bit switches  
with separate bus enable (BE ) signals. When BE is low, the  
switch is on and port A is connected to port B. When BE is  
high, the switch is open and a high-impedance state exists  
between the two ports.  
Features  
n Extended input voltage design tolerates input  
undershoots up to −1.5V  
n 10switch connection between two ports  
n Ultra low power with 2 µA typical ICC  
n Zero ground bounce in flow-through mode  
n Control inputs compatible with TTL level  
n Available in SOIC, QSOP and TSSOP  
The FST3384A 10-bit bus switch is pin-for-pin and function  
compatible with the FST3384 device. It has the added fea-  
ture of allowing extended negative input voltages on the I/O  
pins. The FST3384A bus switch, unlike most bus switches  
on the market, will not falsely turn on when BE is high and  
negative undershoot voltages are encountered on the I/O  
pins. Thus it is “undershoot hardened” (see related applica-  
tion note) tolerating undershoots up to −1.5V.  
Ordering Code:  
Order Number  
FST3384AQSC  
FST3384AMTC  
Package Number  
MQA24  
Package Description  
24-Lead (0.150" Wide) Shrink Small Outline Package, QSOP  
24-Lead Thin Small Outline Package, TSSOP  
MTC24  
Devices also available in Tape and Reel. Specify by appending the suffix letter “X” to the ordering code.  
Logic Diagram  
Connection Diagram  
Pin Assignment  
SOIC, QSOP and TSSOP  
DS012481-1  
DS012481-2  
© 1998 Fairchild Semiconductor Corporation  
DS012481  
www.fairchildsemi.com  
 
Pin Descriptions  
Truth Table  
Pin Names  
BE A, BE B  
A0–A9  
Description  
Bus Switch Enable  
Bus A  
B0–B9  
Bus B  
BE A  
BE B  
B0–B4  
A0–A4  
B5–B9  
A5–A9  
Function  
Connect  
L
L
L
H
L
A0–A4  
HIGH-Z State  
A5–A9  
Connect  
H
H
HIGH-Z State  
HIGH-Z State  
Connect  
H
HIGH-Z State  
Disconnect  
www.fairchildsemi.com  
2
Absolute Maximum Ratings (Note 1)  
Recommended Operating  
Conditions  
Supply Voltage (VCC  
)
−0.5V to +7.0V  
−0.5 to +7.0V  
−0.5 to +7.0V  
−20 mA  
DC Switch Voltage (VS)  
Supply Voltage (VCC  
)
4.0V to 5.5V  
DC Input Input Voltage (VI) (Note 2)  
Free Air Operating Temperature (TA)  
−40˚C to +85˚C  
<
DC Input Diode Current with (VI 0)  
Note 1: The “Absolute Maximum Ratings” are those values beyond which  
the safety of the device cannot be guaranteed. The device should not be op-  
erated at these limits. The parametric values defined in the Electrical Charac-  
teristics tables are not guaranteed at the absolute maximum ratings. The  
“Recommended Operating Conditions” table will define the conditions for ac-  
tual device operation.  
DC Output (IO) Sink Current  
120 mA  
Storage Temperature Range (TSTG  
Power Dissipation  
)
−65˚C to +150˚C  
0.5W  
Note 2: The input and output negative voltage ratings may be exceeded if  
the input and output diode current ratings are observed.  
DC Electrical Characteristics  
=
Symbol  
Parameter  
VCC  
(V)  
TA −40˚C to +85˚C  
Units  
Conditions  
Min  
Typ  
Max  
(Note 5)  
=
VIK  
VIH  
VIL  
IIN  
Maximum Clamp  
4.75  
−1.2  
V
V
IIN −18 mA  
Diode Voltage  
Minimum High  
4.75–5.25  
4.75–5.25  
2.0  
Level Input Voltage  
Maximum Low  
0.8  
10  
Level Input Voltage  
Maximum Input  
Leakage Current  
Maximum 3-STATE  
I/O Leakage  
0
µA  
µA  
0 VIN 5.25V  
0 A, B VCC  
±
5.25  
5.25  
1
±
IOZ  
10  
=
VI(A), VI(B) 0V,  
IOS  
Short Circuit Current  
4.75  
4.75  
5.25  
5.25  
100  
mA  
=
VI(B), VI(A) 4.75V  
= =  
VI 0V, ION 30 mA  
RON  
Switch On  
6
12  
= =  
VI 2.4V, ION 15 mA  
Resistance (Note 3)  
Maximum Quiescent  
Supply Current  
Increase in ICC  
15  
0.2  
25  
10  
=
VI VCC, GND  
ICC  
µA  
=
IO  
0
=
=
0
ICC  
2.5  
mA  
VIN 3.15V, IO  
Per Control Input  
per Input (Note 4)  
Note 3: Measured by voltage drop between A and B pin at indicated current through the switch. On resistance is determined by the lower of the voltages on the two  
(A or B) pins.  
=
Note 4: Per TTL driven Input (V  
IN  
3.15V, control inputs only). A and B pins do not contribute to I .  
CC  
=
=
25˚C.  
Note 5: All typical values are at V  
5.0V, T  
CC  
A
3
www.fairchildsemi.com  
AC Electrical Characteristics  
=
Symbol  
Parameter  
VCC  
(V)  
TA −40˚C to +85˚C  
Units  
=
CL 50 pF  
Min  
Typ  
Max  
(Note 6)  
tPLH  
Data Propagation Delay  
An to Bn or Bn to An  
(Note 7)  
tPHL  
4.75  
4.75  
4.75  
0.50  
6.8  
ns  
ns  
ns  
tPZL  
tPZH  
tPLZ  
tPHZ  
Switch Enable Time  
BE A, BE B to An, Bn  
Switch Disable Time  
BE A, BE B to An, Bn  
1.5  
1.5  
6.0  
=
=
25˚C.  
Note 6: All typical values are at V  
5.0V, T  
CC  
A
Note 7: This parameter is guaranteed by design but not tested. The bus switch contributes no propagation delay other than the RC delay of the On resistance of  
the switch and the load capacitance. The time constant for the switch and alone is of the order of 0.5 ns for 50 pF load. Since this time constant is much smaller than  
the rise/fall times of typical driving signals, it adds very little propagation delay to the system. Propagation delay of the bus switch when used in a system is determined  
by the driving circuit on the driving side of the switch and its interaction with the load on the driven side.  
Capacitance (Note 8)  
Symbol  
Parameter  
Control Input Capacitance  
Input/Output Capacitance  
Typ  
4
Max  
6
Units  
pF  
Conditions  
=
VCC 5.0V  
CIN  
CI/O (OFF)  
=
VCC 5.0V  
9
13  
pF  
Note 8: Capacitance is characterized but not tested.  
FST3384A VIN vs RON (Typ)  
DS012481-3  
www.fairchildsemi.com  
4
Physical Dimensions inches (millimeters) unless otherwise noted  
24-Lead (0.150" Wide) Shrink Small Outline Package, JEDEC (QSC)  
(also known as QSOP)  
Package Number MQA24  
5
www.fairchildsemi.com  
Physical Dimensions inches (millimeters) unless otherwise noted (Continued)  
24-Lead Thin Small Outline Package, JEDEC (MTC)  
Package Number MTC24  
LIFE SUPPORT POLICY  
FAIRCHILD’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DE-  
VICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT OF FAIRCHILD SEMI-  
CONDUCTOR CORPORATION. As used herein:  
1. Life support devices or systems are devices or sys-  
tems which, (a) are intended for surgical implant into  
the body, or (b) support or sustain life, and (c) whose  
failure to perform when properly used in accordance  
with instructions for use provided in the labeling, can  
be reasonably expected to result in a significant injury  
to the user.  
2. A critical component in any component of a life support  
device or system whose failure to perform can be rea-  
sonably expected to cause the failure of the life support  
device or system, or to affect its safety or effectiveness.  
Fairchild Semiconductor  
Corporation  
Fairchild Semiconductor  
Europe  
Fairchild Semiconductor  
Hong Kong Ltd.  
National Semiconductor  
Japan Ltd.  
Americas  
Customer Response Center  
Tel: 1-888-522-5372  
Fax: +49 (0) 1 80-530 85 86  
Email: europe.support@nsc.com  
Deutsch Tel: +49 (0) 8 141-35-0  
13th Floor, Straight Block,  
Ocean Centre, 5 Canton Rd.  
Tsimshatsui, Kowloon  
Hong Kong  
Tel: 81-3-5620-6175  
Fax: 81-3-5620-6179  
English Tel: +44 (0) 1 793-85-68-56  
Italy  
Tel: +39 (0) 2 57 5631  
Tel: +852 2737-7200  
Fax: +852 2314-0061  
www.fairchildsemi.com  
Fairchild does not assume any responsibility for use of any circuitry described, no circuit patent licenses are implied and Fairchild reserves the right at any time without notice to change said circuitry and specifications.  
June 1997  
Revised December 1999  
FST6800  
10-Bit Bus Switch with Pre-Charged Outputs  
General Description  
Features  
The Fairchild Switch FST6800 provides 10-bits of high-  
speed CMOS TTL-compatible bus switching. The low on  
resistance of the switch allows inputs to be connected to  
outputs without adding propagation delay or generating  
additional ground bounce noise. The device precharges  
the B Port to a selectable bias voltage (BiasV) to minimize  
live insertion noise.  
4switch connection between two ports.  
Minimal propagation delay through the switch.  
Low lCC  
.
Zero bounce in flow-through mode.  
Output precharge to minimize live insertion noise.  
Control inputs compatible with TTL level.  
The device is organized as a 10-bit switch with a bus  
enable (OE) signal. When OE is LOW, the switch is ON  
and Port A is connected to Port B. When OE is HIGH, the  
switch is OPEN and the B Port is precharged to BiasV  
through an equivalent 10-kresistor.  
Ordering Code:  
Order Number  
FST6800WM  
FST6800QSC  
FST6800MTC  
Package Number  
M24B  
Package Description  
24-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300 Wide  
24-Lead Quarter Size Outline Package (QSOP), JEDEC MO-137, 0.150 Wide  
24-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 4.4mm Wide  
MQA24  
MTC24  
Devices also available in Tape and Reel. Specify by appending the suffix letter “X” to the ordering code.  
Logic Diagram  
Connection Diagram  
Truth Table  
Pin Descriptions  
Pin Name  
Description  
OE  
B0–B9  
Function  
OE  
A
Bus Switch Enable  
Bus A  
L
A0–A9  
BiasV  
Connect  
H
Precharge  
B
Bus B  
© 1999 Fairchild Semiconductor Corporation  
DS500022  
www.fairchildsemi.com  
 
Absolute Maximum Ratings(Note 1)  
Recommended Operating  
Conditions (Note 3)  
Supply Voltage (VCC  
)
0.5V to +7.0V  
0.5V to +7.0V  
0.5V to +6.0V  
0.5V to +7.0V  
50mA  
DC Switch Voltage (VS)  
Power Supply Operating (VCC  
Precharge Supply (BiasV)  
)
4.0V to 5.5V  
1.5V to VCC  
0V to 5.5V  
0V to 5.5V  
Bias V Voltage Range  
DC Input Voltage (VIN) (Note 2)  
DC Input Diode Current (lIK) VIN<0V  
DC Output (IOUT) Sink Current  
Input Voltage (VIN  
)
Output Voltage (VOUT  
)
128mA  
Input Rise and Fall Time (tr, tf)  
Switch Control Input  
DC VCC/GND Current (ICC/IGND  
)
+/100mA  
0nS/V to 5nS/V  
0nS/V to DC  
Storage Temperature Range (TSTG  
)
65°C to +150 °C  
Switch I/O  
Free Air Operating Temperature (TA)  
40 °C to +85 °C  
Note 1: The Absolute Maximum Ratings are those values beyond which  
the safety of the device cannot be guaranteed. The device should not be  
operated at these limits. The parametric values defined in the Electrical  
Characteristics tables are not guaranteed at the absolute maximum ratings.  
The Recommended Operating Conditions tables will define the conditions  
for actual device operation.  
Note 2: The input and output negative voltage ratings may be exceeded if  
the input and output diode current ratings are observed.  
Note 3: Unused control inputs must be held HIGH or LOW. They may not  
float.  
DC Electrical Characteristics  
T
A = −40 °C to +85 °C  
VCC  
(V)  
Symbol  
Parameter  
Units  
Conditions  
Typ  
Min  
Max  
(Note 4)  
VIK  
Clamp Diode Voltage  
HIGH Level Input Voltage  
LOW Level Input Voltage  
Input Leakage Current  
Output Current  
4.5  
4.0–5.5  
4.0–5.5  
5.5  
1.2  
V
V
IIN = −18mA  
VIH  
VIL  
II  
2.0  
0.8  
V
±1.0  
µA  
mA  
µA  
0VIN 5.5V  
IO  
4.5  
0.25  
BiasV = 2.4V, B = 0  
0 A VCC  
IOZ  
RON  
OFF-STATE Leakage Current  
Switch On Resistance  
(Note 5)  
5.5  
±1.0  
7
4.5  
4
4
V
V
V
V
V
IN = 0V, IIN = 64mA  
4.5  
7
IN = 0V, IIN = 30mA  
4.5  
8
15  
20  
3
IN = 2.4V, IIN = 15mA  
IN = 2.4V, IIN = 15mA  
IN = VCC or GND, IOUT = 0  
4.0  
11  
ICC  
Quiescent Supply Current  
Increase in ICC per Input  
5.5  
µA  
mA  
ICC  
5.5  
2.5  
One input at 3.4V  
Other inputs at VCC or GND  
Note 4: Typical values are at VCC = 5.0V and TA= +25°C  
Note 5: Measured by the voltage drop between A and B pins at the indicated current through the switch. On resistance is determined by the lower of the  
voltages on the two (A or B) pins.  
www.fairchildsemi.com  
2
AC Electrical Characteristics  
TA = −40 °C to +85 °C,  
CL = 50pF, RU = RD = 500Ω  
Symbol  
Parameter  
Units  
Conditions  
Figure No.  
V
CC = 4.5 – 5.5V  
VCC = 4.0V  
Min  
Max  
Min  
Max  
t
PHL,tPLH  
Prop Delay Bus to Bus (Note 6)  
Output Enable Time  
0.25  
0.25  
ns  
VI = OPEN  
Figures 1,  
2
tPZH  
tPZL  
tPHZ  
tPLZ  
1.5  
1.5  
1.5  
1.5  
6.2  
6.2  
6.1  
7.3  
6.5  
6.5  
6.5  
6.8  
ns  
ns  
ns  
ns  
VI = OPEN, BiasV = GND  
VI = 7V, BiasV = 3V  
Figure 1  
Figure 2  
Output Disable Time  
VI = OPEN, BiasV = GND  
VI = 7V, BiasV = 3V  
Figure 1  
Figure 2  
Note 6: This parameter is guaranteed by design but is not tested. The bus switch contributes no propagation delay other than the RC delay of the typical On  
resistance of the switch and the 50pF load capacitance, when driven by an ideal voltage the source (zero output impedance).  
Capacitance (Note 7)  
Symbol  
CIN  
Parameter  
Typ  
Max  
Units  
Conditions  
VCC = 5.0V  
Control Pin Input Capacitance  
3
pF  
CI/O  
Input/Output Capacitance  
5
pF  
VCC, OE = 5.0V  
Note 7: TA = +25°C, f = 1 MHz, Capacitance is characterized but not tested.  
AC Loading and Waveforms  
Note: Input driven by 50 source terminated in 50 Ω  
Note: CL includes load and stray capacitance  
Note: Input PRR = 1.0 MHz, tW = 500 ns  
FIGURE 1. AC Test Circuit  
FIGURE 2. AC Waveforms  
3
www.fairchildsemi.com  
Physical Dimensions inches (millimeters) unless otherwise noted  
24-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300 Wide  
Package Number M24B  
24-Lead Quarter Size Outline Package (QSOP), JEDEC MO-137, 0.150 Wide  
Package Number MQA24  
www.fairchildsemi.com  
4
Physical Dimensions inches (millimeters) unless otherwise noted (Continued)  
24-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 4.4mm Wide  
Package Number MTC24  
Technology Description  
The Fairchild Switch family derives from and embodies Fairchild’s proven switch technology used for several years in its  
74LVX3L384 (FST3384) bus switch product.  
Fairchild does not assume any responsibility for use of any circuitry described, no circuit patent licenses are implied and  
Fairchild reserves the right at any time without notice to change said circuitry and specifications.  
LIFE SUPPORT POLICY  
FAIRCHILD’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT  
DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT OF FAIRCHILD  
SEMICONDUCTOR CORPORATION. As used herein:  
1. Life support devices or systems are devices or systems  
which, (a) are intended for surgical implant into the  
body, or (b) support or sustain life, and (c) whose failure  
to perform when properly used in accordance with  
instructions for use provided in the labeling, can be rea-  
sonably expected to result in a significant injury to the  
user.  
2. A critical component in any component of a life support  
device or system whose failure to perform can be rea-  
sonably expected to cause the failure of the life support  
device or system, or to affect its safety or effectiveness.  
www.fairchildsemi.com  
5
www.fairchildsemi.com  
Preliminary  
August 1999  
Revised December 1999  
FSTD16211  
24-Bit Bus Switch with Level Shifting (Preliminary)  
General Description  
Features  
The Fairchild Switch FSTD16211 provides 24-bits of high-  
speed CMOS TTL-compatible bus switching. The low on  
resistance of the switch allows inputs to be connected to  
outputs without adding propagation delay or generating  
additional ground bounce noise. A diode to VCC has been  
4switch connection between two ports.  
Minimal propagation delay through the switch.  
Low lCC  
.
Zero bounce in flow-through mode.  
Control inputs compatible with TTL level.  
integrated into the circuit to allow for level shifting between  
5V inputs and 3.3V outputs.  
The device is organized as a 12-bit or 24-bit bus switch.  
When OE1 is LOW, the switch is ON and Port 1A is con-  
nected to Port 1B. When OE2 is LOW, Port 2A is connected  
to Port 2B. When OE1/2 is HIGH, a high impedance state  
exists between the A and B Ports.  
Ordering Code:  
Order Number  
Package Number  
Package Description  
FSTD16211MTD  
MTD56  
56-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 6.1mm Wide  
Devices also available in Tape and Reel. Specify by appending the suffix letter “X” to the ordering code.  
Logic Diagram  
Connection Diagram  
Truth Table  
Inputs  
Inputs/Outputs  
Pin Descriptions  
OE1  
OE2  
1A, 1B  
2A, 2B  
Pin Name  
Description  
L
L
L
H
L
1A = 1B  
2A = 2B  
OE1, OE2  
1A, 2A  
Bus Switch Enables  
Bus A  
1A = 1B  
Z
2A = 2B  
Z
H
H
Z
Z
1B, 2B  
Bus B  
H
© 1999 Fairchild Semiconductor Corporation  
DS500313  
www.fairchildsemi.com  
 
Preliminary  
Absolute Maximum Ratings(Note 1)  
Recommended Operating  
Conditions (Note 4)  
0.5V to +7.0V  
Supply Voltage (VCC  
)
DC Switch Voltage (VS) (Note 2)  
0.5V to +7.0V Power Supply Operating (VCC)  
4.0V to 5.5V  
0V to 5.5V  
0V to 5.5V  
DC Input Control Pin Voltage (VIN)(Note 3)  
DC Input Diode Current (lIK) VIN < 0V  
0.5V to +7.0V Input Voltage (VIN  
)
50mA  
Output Voltage (VOUT  
)
DC Output (IOUT  
DC VCC/GND Current (ICC/IGND  
Storage Temperature Range (TSTG  
)
128mA Input Rise and Fall Time (tr, tf)  
)
+/100mA  
65°C to +150 °C  
Switch Control Input  
Switch I/O  
0nS/V to 5nS/V  
0nS/V to DC  
)
Free Air Operating Temperature (TA)  
-40 °C to +85 °C  
Note 1: The “Absolute Maximum Ratings” are those values beyond which  
the safety of the device cannot be guaranteed. The device should not be  
operated at these limits. The parametric values defined in the Electrical  
Characteristics tables are not guaranteed at the absolute maximum rating.  
The “Recommended Operating Conditions” table will define the conditions  
for actual device operation.  
Note 2: VS is the voltage observed/applied at either A or B Ports across the  
switch.  
Note 3: The input and output negative voltage ratings may be exceeded if  
the input and output diode current ratings are observed.  
Note 4: Unused control inputs must be held HIGH or LOW. They may not  
float.  
DC Electrical Characteristics  
T
A = −40 °C to +85 °C  
VCC  
(V)  
Symbol  
Parameter  
Units  
Conditions  
Min  
Typ  
Max  
(Note 5)  
VIK  
Clamp Diode Voltage  
HIGH Level Input Voltage  
LOW Level Input Voltage  
HIGH Level  
4.5  
4.0–5.5  
4.0–5.5  
4.0–5.5  
5.5  
1.2  
V
V
IIN = −18mA  
VIH  
VIL  
VOH  
II  
2.0  
0.8  
V
See Figure 3  
V
Input Leakage Current  
±1.0  
10  
µA  
µA  
µA  
0VIN 5.5V  
IN = 5.5V  
0 A, B VCC  
0
V
IOZ  
OFF-STATE Leakage Current  
Switch On Resistance  
(Note 6)  
5.5  
±1.0  
7
RON  
4.5  
4
4
VIN = 0V, IIN = 64mA  
VIN = 0V, IIN = 30mA  
VIN = 2.4V, IIN = 15mA  
VIN = 2.4V, IIN = 15mA  
4.5  
7
4.5  
35  
50  
4.0  
TBD  
TBD  
ICC  
Quiescent Supply Current  
Increase in ICC per Input  
OE1 = OE2 = GND  
IN = VCC or GND, IOUT = 0  
OE1 = OE2 = VCC  
IN = VCC or GND, IOUT = 0  
1.5  
10  
mA  
µA  
V
5.5  
5.5  
V
ICC  
One input at 3.4V  
2.5  
mA  
Other inputs at VCC or GND  
Note 5: Typical values are at VCC = 5.0V and TA= +25°C  
Note 6: Measured by the voltage drop between A and B pins at the indicated current through the switch. On resistance is determined by the lower of the  
voltages on the two (A or B) pins.  
www.fairchildsemi.com  
2
Preliminary  
AC Electrical Characteristics  
T
A = −40 °C to +85 °C,  
CL = 50pF, RU = RD = 500Ω  
Symbol  
Parameter  
Units  
Conditions  
Figure No.  
V
CC = 4.5 – 5.5V CC = 4.0V  
V
Min  
Max  
Min  
Max  
t
PHL,tPLH  
Prop Delay Bus to Bus (Note 7)  
Output Enable Time  
0.25  
0.25  
ns  
ns  
VI = OPEN  
VI = 7V for tPZL  
Figure 1  
Figure 2  
tPZH, tPZL  
1.5  
1.5  
10.0  
9.0  
11.0  
10.0  
Figure 1  
Figure 2  
VI = OPEN for tPZH  
VI = 7V for tPLZ  
tPHZ, tPLZ  
Output Disable Time  
ns  
Figure 1  
Figure 2  
VI = OPEN for tPHZ  
Note 7: This parameter is guaranteed by design but is not tested. The bus switch contributes no propagation delay other than the RC delay of the typical ON  
resistance of the switch and the 50pF load capacitance, when driven by an ideal voltage source (zero output impedance).  
Capacitance (Note 8)  
Symbol  
Parameter  
Control Pin Input Capacitance  
Input/Output Capacitance  
Typ  
3
Max  
Units  
pF  
Conditions  
CC = 5.0V  
VCC, OE = 5.0V  
CIN  
V
CI/O  
6
pF  
Note 8: TA = +25°C, f = 1 MHz, Capacitance is characterized but not tested.  
AC Loading and Waveforms  
Note: Input driven by 50source terminated in 50Ω  
Note: CL includes load and stray capacitance  
Note: Input PRR = 1.0 MHz, TW = 500 ns  
FIGURE 1. AC Test Circuit  
FIGURE 2. AC Waveforms  
3
www.fairchildsemi.com  
Preliminary  
Output Voltage HIGH vs. Supply Voltage  
FIGURE 3.  
www.fairchildsemi.com  
4
Preliminary  
Physical Dimensions inches (millimeters) unless otherwise noted  
56-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 6.1mm Wide  
Package Number MTD56  
Technology Description  
The Fairchild Switch family derives from and embodies Fairchild’s proven switch technology used for several years in its  
74LVX3L384 (FST3384) bus switch product.  
Fairchild does not assume any responsibility for use of any circuitry described, no circuit patent licenses are implied and  
Fairchild reserves the right at any time without notice to change said circuitry and specifications.  
LIFE SUPPORT POLICY  
FAIRCHILD’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT  
DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT OF FAIRCHILD  
SEMICONDUCTOR CORPORATION. As used herein:  
1. Life support devices or systems are devices or systems  
which, (a) are intended for surgical implant into the  
body, or (b) support or sustain life, and (c) whose failure  
to perform when properly used in accordance with  
instructions for use provided in the labeling, can be rea-  
sonably expected to result in a significant injury to the  
user.  
2. A critical component in any component of a life support  
device or system whose failure to perform can be rea-  
sonably expected to cause the failure of the life support  
device or system, or to affect its safety or effectiveness.  
www.fairchildsemi.com  
5
www.fairchildsemi.com  
May 1999  
Revised November 1999  
FSTU32160  
16-Bit to 32-Bit  
Multiplexer/Demultiplexer Bus Switch with  
2V Undershoot Hardened Circuit (UHC ) Protection  
General Description  
Features  
Undershoot hardened to 2V (A and B Ports).  
Slower Output Enable times prevent signal disruption  
4switch connection between two ports.  
The Fairchild Switch FSTU32160 is a 16-bit to 32-bit high-  
speed CMOS TTL-compatible multiplexer/demultiplexer  
bus switch. The low on resistance of the switch allows  
inputs to be connected to outputs without adding propaga-  
tion delay or generating additional ground bounce noise.  
Minimal propagation delay through the switch.  
Low lCC  
.
The device can be used in applications where two buses  
need to be addressed simultaneously. The FSTU32160 is  
designed so that the A Port demultiplexes into B1 or B2 or  
Zero bounce in flow-through mode.  
Control inputs compatible with TTL level.  
See Applications Note AN-5008 for details  
both. The A and B Ports are “undershoot hardened” with  
UHC protection to support an extended range to 2.0V  
below ground. Fairchild’s integrated Undershoot Hardened  
Circuit, UHC senses undershoot at the I/O’s, and responds  
by preventing voltage differentials from developing and  
turning on the switch.  
Two select (SEL1, SEL2) inputs provide switch enable con-  
trol. When SEL1, SEL2 are HIGH, the device precharges  
the B Port to a selectable bias voltage (Bias V) to minimize  
live insertion noise.  
Ordering Code:  
Order Number  
Package Number  
Package Description  
FSTU32160MTD  
MTD56  
56-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 6.1mm Wide  
Devices also available in Tape and Reel. Specify by appending the suffix letter “X” to the ordering code.  
UHC is a trademark of Fairchild Semiconductor Corporation.  
© 1999 Fairchild Semiconductor Corporation  
DS500244  
www.fairchildsemi.com  
 
Connection Diagram  
Pin Descriptions  
Pin Name  
SEL1, SEL2  
A
Description  
Select Inputs  
Bus A  
B1, B2  
Bus B  
Truth Table  
Inputs  
Function  
SEL1  
SEL2  
L
H
L
H
L
x A = x B1  
x A = x B2  
L
x A = x B1 and x B2  
x B1, x B2 = BiasV  
H
H
Logic Diagram  
www.fairchildsemi.com  
2
Absolute Maximum Ratings(Note 1)  
Recommended Operating  
Conditions (Note 4)  
Supply Voltage (VCC  
)
0.5V to +7.0V  
2.0V to +7.0V  
0.5V to +7.0V  
DC Switch Voltage (VS) (Note 2)  
BiasV Voltage Range  
Power Supply Operating (VCC  
Precharge Supply (BiasV)  
)
4.0V to 5.5V  
1.5 to VCC  
0V to 5.5V  
0V to 5.5V  
DC Input Control Pin Voltage  
(VIN) (Note 3)  
Input Voltage (VIN  
)
0.5V to +7.0V  
50 mA  
Output Voltage (VOUT  
)
DC Input Diode Current (lIK) VIN < 0V  
Input Rise and Fall Time (tr, tf)  
Switch Control Input  
DC Output Current (IOUT  
DC VCC/GND Current (ICC/IGND  
Storage Temperature Range (TSTG  
)
128 mA  
0nS/V to 5nS/V  
0nS/V to DC  
)
+/100 mA  
65°C to +150 °C  
Switch I/O  
)
Free Air Operating Temperature (TA)  
40 °C to +85 °C  
Note 1: The “Absolute Maximum Ratings” are those values beyond which  
the safety of the device cannot be guaranteed. The device should not be  
operated at these limits. The parametric values defined in the Electrical  
Characteristics tables are not guaranteed at the absolute maximum rating.  
The “Recommended Operating Conditions” table will define the conditions  
for actual device operation.  
Note 2: VS is the voltage observed/applied at either the A or B Ports across  
the switch.  
Note 3: The input and output negative voltage ratings may be exceeded if  
the input and output diode current ratings are observed.  
Note 4: Unused control inputs must be held HIGH or LOW. They may not  
float.  
DC Electrical Characteristics  
T
A = −40 °C to +85 °C  
Symbol  
Parameter  
VCC  
Units  
Conditions  
Min  
Typ  
Max  
(V)  
4.5  
(Note 5)  
VIK  
Clamp Diode Voltage  
1.2  
V
V
IIN = −18mA  
VIH  
VIL  
II  
HIGH Level Input Voltage  
LOW Level Input Voltage  
Input Leakage Current  
4.0–5.5  
4.0–5.5  
5.5  
2.0  
0.8  
±1.0  
10  
V
µA  
µA  
mA  
0 VIN 5.5V  
IN = 5.5V  
BiasV = 2.4V, SELX = 2.0V  
X = 0  
0
V
IO  
Output Current  
4.5  
0.25  
B
IOZH, IOZL OFF-STATE Leakage Current  
IOZH, IOZL OFF-STATE Leakage Current  
5.5  
5.5  
±1.0  
±1.0  
µA  
µA  
0 A, VCC, V  
BiasV1 = BiasV2 = 5.5V  
0 B, VCC, V  
BiasV1 = BiasV2 = FLOATING  
RON  
Switch On Resistance  
(Note 6)  
4.5  
4.5  
4.5  
4.0  
5.5  
5.5  
4
4
7
7
V
V
V
V
V
IN = 0V, IIN = 64 mA  
IN = 0V, IIN = 30 mA  
8
14  
20  
3
IN = 2.4V, IIN = 15 mA  
IN = 2.4V, IIN = 15 mA  
IN = VCC or GND, IOUT = 0  
11  
ICC  
Quiescent Supply Current  
Increase in ICC per Input  
µA  
mA  
ICC  
2.5  
One input at 3.4V  
Other inputs at VCC or GND  
SEL1, SEL2 = 0V  
IBIAS  
Bias Pin Leakage Current  
Voltage Undershoot  
5.5  
5.5  
±1.0  
2.0  
µA  
BX = 0V, BiasVX = 5.5V  
VIKU  
V
0.0 mA IIN ≥ −50 mA  
SEL1, SEL2 = 5.5V  
Note 5: Typical values are at VCC = 5.0V and TA = +25°C  
Note 6: Measured by the voltage drop between A and B pins at the indicated current through the switch. On resistance is determined by the lower of the  
voltages on the two (A or B) pins.  
3
www.fairchildsemi.com  
AC Electrical Characteristics  
T
A = −40 °C to +85 °C,  
L = 50 pF, RU= RD = 500Ω  
CC = 4.5 5.5V CC = 4.0V  
C
Symbol  
Parameter  
Units  
Conditions  
Figure No.  
V
V
Min  
Max  
Min  
Max  
t
PHL, tPLH  
A or B, to B or A (Note 7)  
0.25  
0.25  
ns  
VI = OPEN  
Figure 2  
Figure 3  
tPZH  
tPZL  
tPHZ  
tPLZ  
Output Enable Time,  
SEL to A, B  
VI = OPEN for tPZH  
BiasV = GND  
Figure 2  
Figure 3  
7.0  
7.0  
1.0  
1.0  
30.0  
30.0  
6.9  
35.0  
35.0  
7.3  
ns  
ns  
ns  
ns  
Output Enable Time,  
SEL to A, B  
VI = 7V for tPZL  
BiasV = 3V  
Figure 2  
Figure 3  
Output Disable Time,  
SEL to A, B  
VI = OPEN for tPHZ  
BiasV = GND  
Figure 2  
Figure 3  
Output Disable Time,  
SEL to A, B  
VI = 7V for tPLZ  
BiasV = 3V  
,
Figure 2  
Figure 3  
7.7  
7.7  
Note 7: This parameter is guaranteed by design but is not tested. The bus switch contributes no propagation delay other than the RC delay of the typical On  
resistance of the switch and the 50pF load capacitance, when driven by an ideal voltage source (zero output impedance).  
Capacitance (Note 8)  
Symbol  
Parameter  
Typ  
Max  
Units  
Conditions  
VCC = 5.0V  
CIN  
CI/O OFF  
Control pin Input Capacitance  
4
8
pF  
pF  
Input/Output Capacitance “OFF State”  
VCC = 5.0V, Switch OFF  
Note 8: TA = +25°C, f = 1 MHz, Capacitance is characterized but not tested.  
Undershoot Characteristic (Note 9)  
Symbol  
VOUTU  
Parameter  
Min  
Typ  
Max  
Units  
Conditions  
Output Voltage During Undershoot  
2.5  
V
OH 0.3  
V
Figure 1  
Note 9: This test is intended to characterize the device’s protective capabilities by maintaining output signal integrity during an input transient voltage  
undershoot event.  
FIGURE 1.  
Device Test Conditions  
Transient  
Input Voltage (V ) Waveform  
IN  
Parameter  
Value  
see Waveform  
100K  
Units  
VIN  
V
V
V
R1 = R2  
VTRI  
11.0  
VCC  
5.5  
www.fairchildsemi.com  
4
AC Loading and Waveforms  
Note: Input driven by 50source terminated in 50Ω  
Note: CL includes load and stray capacitance, CL = 50 pF  
Note: Input PRR = 1.0 MHz, tW = 500 ns  
FIGURE 2. AC Test Circuit  
FIGURE 3. AC Waveforms  
5
www.fairchildsemi.com  
Physical Dimensions inches (millimeters) unless otherwise noted  
56-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 6.1mm Wide  
Package Number MTD56  
Technology Description  
The Fairchild Switch family derives from and embodies Fairchild’s proven switch technology used for several years in its  
74LVX3L384 (FST3384) bus switch product.  
Fairchild does not assume any responsibility for use of any circuitry described, no circuit patent licenses are implied and  
Fairchild reserves the right at any time without notice to change said circuitry and specifications.  
LIFE SUPPORT POLICY  
FAIRCHILD’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT  
DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT OF FAIRCHILD  
SEMICONDUCTOR CORPORATION. As used herein:  
1. Life support devices or systems are devices or systems  
which, (a) are intended for surgical implant into the  
body, or (b) support or sustain life, and (c) whose failure  
to perform when properly used in accordance with  
instructions for use provided in the labeling, can be rea-  
sonably expected to result in a significant injury to the  
user.  
2. A critical component in any component of a life support  
device or system whose failure to perform can be rea-  
sonably expected to cause the failure of the life support  
device or system, or to affect its safety or effectiveness.  
www.fairchildsemi.com  
www.fairchildsemi.com  
6
June 1999  
Revised November 1999  
FSTU32160A  
16-Bit to 32-Bit  
Multiplexer/Demultiplexer Bus Switch with  
2V Undershoot Hardened Circuit (UHC ) Protection  
General Description  
Features  
Undershoot hardened to 2V (A and B Ports).  
4switch connection between two ports.  
Minimal propagation delay through the switch.  
The Fairchild Switch FSTU32160A is a 16-bit to 32-bit  
high-speed CMOS TTL-compatible multiplexer/demulti-  
plexer bus switch. The low on resistance of the switch  
allows inputs to be connected to outputs without adding  
propagation delay or generating additional ground bounce  
noise.  
Low lCC  
.
Zero bounce in flow-through mode.  
The device can be used in applications where two buses  
need to be addressed simultaneously. The FSTU32160A is  
designed so that the A Port demultiplexes into B1 or B2 or  
Control inputs compatible with TTL level.  
See Applications Note AN-5008 for details  
both. The A and B Ports are “undershoot hardened” with  
UHC protection to support an extended range to 2.0V  
below ground. Fairchild’s integrated Undershoot Hardened  
Circuit, UHC senses undershoot at the I/O’s, and responds  
by preventing voltage differentials from developing and  
turning on the switch.  
Two select (SEL1, SEL2) inputs provide switch enable con-  
trol. When SEL1, SEL2 are HIGH, the device precharges  
the B Port to a selectable bias voltage (Bias V) to minimize  
live insertion noise.  
Ordering Code:  
Order Number Package Number  
Package Description  
FSTU32160AMTD  
MTD56  
56-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 6.1mm Wide  
Devices also available in Tape and Reel. Specify by appending the suffix letter “X” to the ordering code.  
UHC is a trademark of Fairchild Semiconductor Corporation.  
© 1999 Fairchild Semiconductor Corporation  
DS500258  
www.fairchildsemi.com  
 
Connection Diagram  
Pin Descriptions  
Pin Name  
SEL1, SEL2  
A
Description  
Select Inputs  
Bus A  
B1, B2  
Bus B  
Truth Table  
Inputs  
Function  
SEL1  
SEL2  
L
H
L
H
L
x A = x B1  
x A = x B2  
L
x A = x B1 and x B2  
x B1, x B2 = BiasV  
H
H
Logic Diagram  
www.fairchildsemi.com  
2
Absolute Maximum Ratings(Note 1)  
Recommended Operating  
Conditions (Note 4)  
Supply Voltage (VCC  
)
0.5V to +7.0V  
2.0V to +7.0V  
0.5V to +7.0V  
DC Switch Voltage (VS) (Note 2)  
BiasV Voltage Range  
Power Supply Operating (VCC  
Precharge Supply (BiasV)  
)
4.0V to 5.5V  
1.5 to VCC  
0V to 5.5V  
0V to 5.5V  
DC Input Control Pin Voltage  
(VIN) (Note 3)  
Input Voltage (VIN  
)
0.5V to +7.0V  
50 mA  
Output Voltage (VOUT  
)
DC Input Diode Current (lIK) VIN < 0V  
Input Rise and Fall Time (tr, tf)  
Switch Control Input  
DC Output Current (IOUT  
DC VCC/GND Current (ICC/IGND  
Storage Temperature Range (TSTG  
)
128 mA  
0nS/V to 5nS/V  
0nS/V to DC  
)
+/100 mA  
65°C to +150 °C  
Switch I/O  
)
Free Air Operating Temperature (TA)  
40 °C to +85 °C  
Note 1: The “Absolute Maximum Ratings” are those values beyond which  
the safety of the device cannot be guaranteed. The device should not be  
operated at these limits. The parametric values defined in the Electrical  
Characteristics tables are not guaranteed at the absolute maximum rating.  
The “Recommended Operating Conditions” table will define the conditions  
for actual device operation.  
Note 2: VS is the voltage observed/applied at either the A or B Ports across  
the switch.  
Note 3: The input and output negative voltage ratings may be exceeded if  
the input and output diode current ratings are observed.  
Note 4: Unused control inputs must be held HIGH or LOW. They may not  
float.  
DC Electrical Characteristics  
T
A = −40 °C to +85 °C  
Symbol  
Parameter  
VCC  
Units  
Conditions  
Min  
Typ  
Max  
(V)  
4.5  
(Note 5)  
VIK  
Clamp Diode Voltage  
1.2  
V
V
IIN = −18mA  
VIH  
VIL  
II  
HIGH Level Input Voltage  
LOW Level Input Voltage  
Input Leakage Current  
4.0–5.5  
4.0–5.5  
5.5  
2.0  
0.8  
±1.0  
10  
V
µA  
µA  
mA  
0 VIN 5.5V  
IN = 5.5V  
BiasV = 2.4V  
X = 0  
0
V
IO  
Output Current  
4.5  
0.25  
B
IOZH, IOZL OFF-STATE Leakage Current  
IOZH, IOZL OFF-STATE Leakage Current  
5.5  
5.5  
±1.0  
±1.0  
µA  
µA  
0 A VCC, V  
BiasV1 = BiasV2 = 5.5V  
0 B VCC, V  
BiasV1 = BiasV2 = Floating  
RON  
Switch On Resistance  
(Note 6)  
4.5  
4.5  
4.5  
4.0  
5.5  
5.5  
4
4
7
7
V
V
V
V
V
IN = 0V, IIN = 64 mA  
IN = 0V, IIN = 30 mA  
8
14  
20  
3
IN = 2.4V, IIN = 15 mA  
IN = 2.4V, IIN = 15 mA  
IN = VCC or GND, IOUT = 0  
11  
ICC  
Quiescent Supply Current  
Increase in ICC per Input  
µA  
mA  
ICC  
2.5  
One input at 3.4V  
Other inputs at VCC or GND  
SEL1, SEL2 = 0V  
IBIAS  
Bias Pin Leakage Current  
Voltage Undershoot  
5.5  
5.5  
±1.0  
2.0  
µA  
BX = 0V, BiasVX = 5.5V  
VIKU  
V
0.0 mA IIN ≥ −50 mA  
SEL1, SEL2 = 5.5V  
Note 5: Typical values are at VCC = 5.0V and TA = +25°C  
Note 6: Measured by the voltage drop between A and B pins at the indicated current through the switch. On resistance is determined by the lower of the  
voltages on the two (A or B) pins.  
3
www.fairchildsemi.com  
AC Electrical Characteristics  
T
A = −40 °C to +85 °C,  
CL = 50 pF, RU= RD = 500Ω  
Symbol  
Parameter  
Units  
Conditions  
Figure No.  
V
CC = 4.5 5.5V CC = 4.0V  
V
Min  
Max  
Min  
Max  
t
PHL, tPLH  
A or B, to B or A (Note 7)  
0.25  
0.25  
ns  
VI = OPEN  
Figure 2  
Figure 3  
tPZH  
tPZL  
tPHZ  
tPLZ  
Output Enable Time,  
SEL to A, B  
VI = OPEN for tPZH  
BiasV = GND  
VI = 7V for tPZL  
BiasV = 3V  
Figure 2  
Figure 3  
0.5  
1.0  
1.0  
1.0  
4.0  
4.8  
5.9  
7.4  
4.5  
5.5  
6.9  
7.0  
ns  
ns  
ns  
ns  
Output Enable Time,  
SEL to A, B  
Figure 2  
Figure 3  
Output Disable Time,  
SEL to A, B  
VI = Open for tPHZ  
BiasV = GND  
VI = 7V for tPLZ  
BiasV = 3V  
Figure 2  
Figure 3  
Output Disable Time,  
SEL to A, B  
Figure 2  
Figure 3  
Note 7: This parameter is guaranteed by design but is not tested. The bus switch contributes no propagation delay other than the RC delay of the typical On  
resistance of the switch and the 50pF load capacitance, when driven by an ideal voltage source (zero output impedance).  
Capacitance (Note 8)  
Symbol  
CIN  
CI/O OFF  
Parameter  
Typ  
Max  
Units  
Conditions  
CC = 5.0V  
Control pin Input Capacitance  
4
8
pF  
pF  
V
V
Input/Output Capacitance “OFF State”  
CC = 5.0V, Switch OFF  
Note 8: TA = +25°C, f = 1 Mhz, Capacitance is characterized but not tested.  
Undershoot Characteristic (Note 9)  
Symbol  
VOUTU  
Parameter  
Min  
Typ  
Max  
Units  
Conditions  
Output Voltage During Undershoot  
2.5  
V
OH 0.3  
V
Figure 1  
Note 9: This is intended to characterize the device’s protective capabilities by maintaining output signal integrity during an input transient voltage undershoot  
event.  
FIGURE 1.  
Device Test Conditions  
Transient  
Input Voltage (V ) Waveform  
IN  
Parameter  
VIN  
Value  
Units  
See Waveform  
100K  
V
V
V
R1 - R2  
VTRI  
11.0  
VCC  
5.5  
www.fairchildsemi.com  
4
AC Loading and Waveforms  
Note: Input driven by 50source terminated in 50Ω  
Note: CL includes load and stray capacitance, CL = 50 pF  
Note: Input PRR = 1.0 MHz, tW = 500 ns  
FIGURE 2. AC Test Circuit  
FIGURE 3. AC Waveforms  
5
www.fairchildsemi.com  
Physical Dimensions inches (millimeters) unless otherwise noted  
56-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 6.1mm Wide  
Package Number MTD56  
Technology Description  
The Fairchild Switch family derives from and embodies Fairchild’s proven switch technology used for several years in its  
74LVX3L384 (FST3384) bus switch product.  
Fairchild does not assume any responsibility for use of any circuitry described, no circuit patent licenses are implied and  
Fairchild reserves the right at any time without notice to change said circuitry and specifications.  
LIFE SUPPORT POLICY  
FAIRCHILD’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT  
DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT OF FAIRCHILD  
SEMICONDUCTOR CORPORATION. As used herein:  
1. Life support devices or systems are devices or systems  
which, (a) are intended for surgical implant into the  
body, or (b) support or sustain life, and (c) whose failure  
to perform when properly used in accordance with  
instructions for use provided in the labeling, can be rea-  
sonably expected to result in a significant injury to the  
user.  
2. A critical component in any component of a life support  
device or system whose failure to perform can be rea-  
sonably expected to cause the failure of the life support  
device or system, or to affect its safety or effectiveness.  
www.fairchildsemi.com  
www.fairchildsemi.com  
6
August 1999  
Revised December 1999  
FSTU3257  
Quad 2:1 Multiplexer/Demultiplexer Bus Switch with  
2V Undershoot Hardened Circuit (UHC ) Protection  
General Description  
Features  
Undershoot hardened to 2V (A and B Ports)  
The Fairchild Switch FSTU3257 is a quad 2:1 high-speed  
CMOS TTL-compatible multiplexer/demultiplexer bus  
switch. The low on resistance of the switch allows inputs to  
be connected to outputs without adding propagation delay  
or generating additional ground bounce noise.  
Soft enable turn-on to minimize bus to bus charge  
sharing during enable  
4switch connection between two ports.  
Minimal propagation delay through the switch.  
When OE is LOW, the select pin connects the A Port to the  
selected B Port output. The A and B Ports are “undershoot  
hardened” with UHC protection to support an extended  
range of 2.0V below ground. Fairchild’s integrated Under-  
shoot Hardened Circuit UHC senses undershoot at the I/O  
and responds by preventing voltage differentials from  
developing and turning on the switch. When OE is HIGH,  
the switch is OPEN and a high-impedance state exists  
between the two ports.  
Low lCC  
.
Zero bounce in flow-through mode.  
Control inputs compatible with TTL level.  
See Applications Note AN-5008 for details  
Ordering Code:  
Order Number  
FSTU3257QSC  
FSTU3257MTC  
Package Number  
MQA16  
Package Description  
16-Lead Quarter Size Outline Package (QSOP), JEDEC MO-137, 0.150 Wide  
16-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 4.4mm Wide  
MTC16  
Device also available in Tape and Reel. Specify by appending suffix letter “X” to the ordering code.  
UHC is a trademark of Fairchild Semiconductor Corporation.  
© 1999 Fairchild Semiconductor Corporation  
DS500302  
www.fairchildsemi.com  
 
Logic Diagram  
Connection Diagram  
Pin Descriptions  
Truth Table  
Pin Name  
Description  
S
X
L
OE  
H
Function  
Disconnect  
A = B1  
OE  
S
Bus Switch Enable  
Select Input  
Bus A  
L
A
H
L
A = B2  
B1–B2  
Bus B  
www.fairchildsemi.com  
2
Absolute Maximum Ratings(Note 1)  
Recommended Operating  
Conditions (Note 4)  
0.5V to +7.0V  
Supply Voltage (VCC  
)
DC Switch Voltage (VS) (Note 2)  
2.0V to +7.0V Power Supply Operating (VCC  
)
4.0V to 5.5V  
0V to 5.5V  
0V to 5.5V  
DC Input Control Pin Voltage (VIN)(Note 3)  
DC Input Diode Current (lIK) VIN<0V  
0.5V to +7.0V Input Voltage (VIN  
)
50mA  
Output Voltage (VOUT  
)
DC Output (IOUT  
DC VCC/GND Current (ICC/IGND  
Storage Temperature Range (TSTG  
)
128mA Input Rise and Fall Time (tr, tf)  
)
+/100mA  
65°C to +150 °C  
Switch Control Input  
Switch I/O  
0nS/V to 5nS/V  
0nS/V to DC  
)
Free Air Operating Temperature (TA)  
40 °C to +85 °C  
Note 1: The Absolute Maximum Ratings are those values beyond which  
the safety of the device cannot be guaranteed. The device should not be  
operated at these limits. The parametric values defined in the Electrical  
Characteristics tables are not guaranteed at the absolute maximum rating.  
The Recommended Operating Conditions tables will define the conditions  
for actual device operation.  
Note 2: VS is the voltage observed/applied at either the A or B Ports across  
the switch.  
Note 3: The input and output negative voltage ratings may be exceeded if  
the input and output diode current ratings are observed.  
Note 4: Unused control inputs must be held HIGH or LOW. They may not  
float.  
DC Electrical Characteristics  
T
A = −40 °C to +85 °C  
VCC  
(V)  
Symbol  
Parameter  
Units  
Conditions  
Typ  
Min  
Max  
(Note 5)  
VIK  
Clamp Diode Voltage  
4.5  
4.0–5.5  
4.0–5.5  
5.5  
1.2  
V
V
IIN = −18mA  
VIH  
VIL  
II  
HIGH Level Input Voltage  
LOW Level Input Voltage  
Input Leakage Current  
2.0  
0.8  
±1.0  
±1.0  
7
V
µA  
µA  
0VIN 5.5V  
0 A, B VCC  
IOZ  
RON  
OFF-STATE Leakage Current  
5.5  
Switch On Resistance  
(Note 6)  
4.5  
4
4
V
V
V
V
V
IN = 0V, IIN = 64mA  
4.5  
7
IN = 0V, IIN = 30mA  
4.5  
8
15  
20  
3
IN = 2.4V, IIN = 15mA  
IN = 2.4V, IIN = 15mA  
IN = VCC or GND, IOUT = 0  
4.0  
11  
ICC  
Quiescent Supply Current  
Increase in ICC per Input  
5.5  
µA  
ICC  
One input at 3.4V  
5.5  
5.5  
2.5  
mA  
V
Other inputs at VCC or GND  
0.0 mA IIN ≥ −50 mA  
OE = 5.5V  
VIKU  
Voltage Undershoot  
2.0  
Note 5: Typical values are at VCC = 5.0V and TA = +25°C  
Note 6: Measured by the voltage drop between A and B pins at the indicated current through the switch. On resistance is determined by the lower of the  
voltages on the two (A or B) pins.  
3
www.fairchildsemi.com  
AC Electrical Characteristics  
T
A = −40 °C to +85°C,  
L = 50pF, RU = RD = 500Ω  
CC = 4.5 – 5.5V VCC = 4.0V  
Min Max  
C
Figure  
No.  
Symbol  
Parameter  
Units  
Conditions  
V
Min  
Max  
0.25  
30.0  
30.0  
Prop Delay Bus to Bus (Note 7)  
Prop Delay, Select to Bus A  
0.25  
35.0  
35.0  
Figure 2  
Figure 3  
t
PHL,tPLH  
ns VI = OPEN  
7.0  
7.0  
tPZH, tPZL Output Enable Time, Select to Bus B  
VI = 7V for tPZL  
Figure 2  
Figure 3  
ns  
ns  
VI = OPEN for tPZH  
VI = 7V for tPLZ  
Output Enable Time, OE to Bus A, B  
7.0  
1.5  
30.0  
8.4  
35.0  
9.8  
tPHZ, tPLZ Output Disable Time, Select to Bus B  
Figure 2  
Figure 3  
VI = OPEN for tPHZ  
Output Disable Time, Output Enable Time, OE to Bus A, B  
1.5  
8.8  
9.8  
Note 7: This parameter is guaranteed by design but is not tested. The bus switch contributes no propagation delay other than the RC delay of the typical On  
resistance of the switch and the 50pF load capacitance, when driven by an ideal voltage the source (zero output impedance).  
Capacitance (Note 8)  
Symbol  
Parameter  
Typ  
Max  
Units  
Conditions  
VCC = 5.0V  
CIN  
Control Pin Input Capacitance  
3
pF  
A Port  
B Port  
7.5  
5.5  
14  
pF  
pF  
pF  
CI/O  
Input/Output Capacitance  
VCC, OE = 5.0V  
CI/O ON State  
Input/Output Capacitance ON State (A or B Port)  
V
CC = 5.0V Switch ON  
Note 8: TA = +25°C, f = 1 MHz, Capacitance is characterized but not tested.  
Undershoot Characteristic (Note 9)  
Symbol  
VOUTU  
Parameter  
Min  
Typ  
OH 0.3  
Max  
Units  
Conditions  
Output Voltage During Undershoot  
2.5  
V
V
Figure 1  
Note 9: This is intended to characterize the device’s protective capabilities by maintaining output signal integrity during an input transient voltage undershoot  
event.  
FIGURE 1.  
Device Test Conditions  
Transient  
Input Voltage (V ) Waveform  
Parameter  
VIN  
Value  
Units  
IN  
See Waveform  
100K  
V
V
V
R1 - R2  
VTRI  
11.0  
VCC  
5.5  
www.fairchildsemi.com  
4
AC Loading and Waveforms  
Note: Input driven by 50source terminated in 50Ω  
Note: CL includes load and stray capacitance  
Note: Input PRR = 1.0 MHz, tW = 500 nS  
FIGURE 2. AC Test Circuit  
FIGURE 3. AC Waveforms  
5
www.fairchildsemi.com  
Physical Dimensions inches (millimeters) unless otherwise noted  
16-Lead Quarter Size Outline Package (QSOP), JEDEC MO-137, 0.150 Wide  
Package Number MQA16  
www.fairchildsemi.com  
6
Physical Dimensions inches (millimeters) unless otherwise noted (Continued)  
16-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 4.4mm Wide  
Package Number MTC16  
Technology Description  
The Fairchild Switch family derives from and embodies Fairchild’s proven switch technology used for several years in its  
74LVX3L384 (FST3384) bus switch product.  
Fairchild does not assume any responsibility for use of any circuitry described, no circuit patent licenses are implied and  
Fairchild reserves the right at any time without notice to change said circuitry and specifications.  
LIFE SUPPORT POLICY  
FAIRCHILD’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT  
DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT OF FAIRCHILD  
SEMICONDUCTOR CORPORATION. As used herein:  
1. Life support devices or systems are devices or systems  
which, (a) are intended for surgical implant into the  
body, or (b) support or sustain life, and (c) whose failure  
to perform when properly used in accordance with  
instructions for use provided in the labeling, can be rea-  
sonably expected to result in a significant injury to the  
user.  
2. A critical component in any component of a life support  
device or system whose failure to perform can be rea-  
sonably expected to cause the failure of the life support  
device or system, or to affect its safety or effectiveness.  
www.fairchildsemi.com  
7
www.fairchildsemi.com  
May 1999  
Revised December 1999  
FSTU3384  
10-Bit Bus Switch with  
2V Undershoot Hardened Circuit (UHC ) Protection  
General Description  
Features  
The Fairchild Switch FSTU3384 provides 10 bits of high-  
speed CMOS TTL-compatible bus switches. The low on  
resistance of the switch allows inputs to be connected to  
outputs without adding propagation delay generating addi-  
tional ground bounce noise. Both the A Ports and the B  
Ports are “undershoot hardened” with UHC protection to  
support an extended input range to 2.0V below ground.  
Fairchild’s integrated Undershoot Hardened Circuit, UHC  
senses undershoot at the I/Os, and responds by preventing  
voltage differentials from developing and turning on the  
switch. The device is organized as two 5-bit switches with  
separate bus enable (OE) signals. When OE is LOW, the  
switch is ON and Port A is connected to Port B. When OE  
is HIGH, the switch is OPEN and a high-impedance state  
exists between the two ports.  
4switch connection between two ports  
Undershoot Hardened to -2.0V.  
Minimal propagation delay through the switch  
Low lCC  
.
Zero ground bounce in flow-through mode  
Control inputs compatible with TTL level  
See Applications Note AN-5008 for details.  
Ordering Code:  
Order Number  
FSTU3384WM  
FSTU3384QSC  
FSTU3384MTC  
Package Number  
M24B  
Package Description  
24-Lead Small Outline Integrated Circuit (SOIC), JEDEC MO-153 4.4mm Wide  
24-Lead Quarter Size Outline Package (QSOP), JEDEC MO-137, 0.150” Wide  
24-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 4.4mm Wide  
MQA24  
MTC24  
Devices also available in Tape and Reel. Specify by appending the suffix letter “X” to the ordering code.  
Logic Diagram  
Connection Diagram  
Truth Table  
Pin Descriptions  
B0–B4  
A0–A4  
A0–A4  
HIGH-Z State A5–A9  
B5–B9  
A5–A9  
HIGH-Z State  
OEA OEB  
Function  
Connect  
Connect  
Connect  
Pin Names  
Description  
Bus Switch Enable  
Bus A  
Bus B  
L
L
L
H
L
OEA, OEB  
A0–A9  
B0–B9  
H
H
H
HIGH-Z State HIGH-Z State Disconnect  
UHC is a trademark of Fairchild Semiconductor Corporation.  
© 1999 Fairchild Semiconductor Corporation  
DS500195  
www.fairchildsemi.com  
 
Absolute Maximum Ratings(Note 1)  
Recommended Operating  
Conditions (Note 3)  
Supply Voltage (VCC  
)
0.5V to +7.0V  
2.0V to +7.0V  
0.5V to +7.0V  
50 mA  
DC Switch Voltage (VS)  
Power Supply Operating (VCC  
Input Voltage (VIN  
Output Voltage (VOUT  
)
4.0V to 5.5V  
0V to 5.5V  
0V to 5.5V  
DC Input Voltage (VIN) (Note 2)  
DC Input Diode Current (IIK) VIN<0V  
DC Output (IOUT) Sink Current  
)
)
128 mA  
Input Rise and Fall Time (tr, tf)  
Switch Control Input  
DC VCC/GND Current (ICC/IGND  
)
+/100mA  
0nS/V to 5nS/V  
0nS/V to DC  
Storage Temperature Range (TSTG  
)
65°C to +150°C  
Switch I/O  
Free Air Operating Temperature (TA)  
40°C to +85°C  
Note 1: The “Absolute Maximum Ratings” are those values beyond which  
the safety of the device cannot be guaranteed. The device should not be  
operated at these limits. The parametric values defined in the “Electrical  
Characteristics” table are not guaranteed at the absolute maximum ratings.  
The “Recommended Operating Conditions” table will define the conditions  
for actual device operation.  
Note 2: The input and output negative voltage ratings may be exceeded if  
the input and output diode current ratings are observed.  
Note 3: Unused control inputs must be held HIGH or LOW. They may not  
float.  
DC Electrical Characteristics  
T
A = −40°C to +85°C  
VCC  
(V)  
Symbol  
Parameter  
Units  
Condition  
Typ  
Min  
Max  
(Note 5)  
VIK  
Clamp Diode Voltage  
HIGH Level Input Voltage  
LOW Level Input Voltage  
Input Leakage Current  
OFF-STATE Leakage Current  
Switch On Resistance  
(Note 4)  
4.5  
4.0-5.5  
4.0-5.5  
5.5  
1.2  
V
V
IIN = − 18 mA  
VIH  
VIL  
II  
2.0  
0.8  
±1.0  
±1.0  
7
V
µA  
µA  
0 VIN 5.5V  
IOZ  
RON  
5.5  
0 A, B VCC, VIN = VIH  
4.5  
4
4
V
V
V
V
V
S = 0V, IIN = 64 mA  
4.5  
7
S = 0V, IIN = 30 mA  
4.5  
8
15  
20  
3
S = 2.4V, IIN = 15 mA  
S = 2.4V, IIN = 15 mA  
S = VCC or GND, IOUT = 0  
4.0  
11  
ICC  
Quiescent Supply Current  
Increase in ICC per Input  
5.5  
µA  
ICC  
5.5  
2.5  
mA  
OE input at 3.4V  
Other inputs at VCC or GND  
IBIAS  
IOZU  
VIKU  
Bias Pin Leakage Current  
Switch Undershoot Current  
Voltage Undershoot  
5.5  
5.5  
5.5  
±1.0  
100  
µA  
µA  
V
OE = 0V, B = 0V, BiasV = 5.5V  
I
IN= − 20 mA, OE = 5.5V, VOUT VIH  
2.0  
0.0 mA IIN ≥ − 50 mA, OE = 5.5V  
Note 4: Measured by voltage drop between A and B pin at indicated current through the switch. On resistance is determined by the lower of the voltages on  
the two (A or B) pins.  
Note 5: All typical values are at VCC = 5.0V, TA = 25°C.  
www.fairchildsemi.com  
2
AC Electrical Characteristics  
T
A = −40°C to +85°C  
CL = 50 pF, RU = RD = 500Ω  
Symbol  
Parameter  
Units  
Conditions  
Figure No.  
VCC = 4.5 5.5V  
V
CC = 4.0V  
Min  
Max  
Min  
Max  
t
PHL, tPLH  
Prop Delay Bus to Bus (Note 6)  
Output Enable Time  
0.25  
0.25  
ns  
VI = OPEN  
Figure 1,  
Figure 2  
tPZH, tPZL  
VI = 7V for tPZL  
Figure 1,  
Figure 2  
1.0  
1.5  
5.7  
5.2  
6.2  
5.5  
ns  
ns  
VI = OPEN for tPZH  
VI = 7V for tPLZ  
OEA, OEB to An, Bn  
Output Disable Time  
tPHZ, tPLZ  
Figure 1,  
Figure 2  
VI = OPEN for tPHZ  
OEA, OEB to An, Bn  
Note 6: This parameter is guaranteed by design but not tested. The bus switch contributes no propagation delay other than the RC delay of the typical On  
resistance of the switch and the 50pF load capacitance, when driven by an ideal voltage the source (zero output impedance).  
Capacitance (Note 7)  
Symbol  
CIN  
Parameter  
Typ  
Max  
Units  
Conditions  
CC = 5.0V  
Control Input Capacitance  
3
pF  
V
CI/O (OFF) Input/Output Capacitance  
5
pF  
VCC, OE = 5.0V  
Note 7: Capacitance is characterized but not tested.  
AC Loading and Waveforms  
Note: Input driven by 50 source terminated in 50 , RU = RD = 500 Ω  
Note: CL includes load and stray capacitance, CL= 50 pF  
Note: Input PRR = 1.0 MHz, tW = 500 nS  
FIGURE 1. AC Test Circuit  
FIGURE 2. AC Waveforms  
3
www.fairchildsemi.com  
Physical Dimensions inches (millimeters) unless otherwise noted  
24-Lead Small Outline Integrated Circuit (SOIC), JEDEC MO-153 4.4mm Wide  
Package Number M24B  
24-Lead Quarter Size Outline Package (QSOP), JEDEC MO-137, 0.150” Wide  
Package Number MQA24  
www.fairchildsemi.com  
4
Physical Dimensions inches (millimeters) unless otherwise noted (Continued)  
24-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 4.4mm Wide  
Package Number MTC24  
Technology Description  
The Fairchild Switch family derives from and embodies Fairchild’s proven switch technology used for several years in its  
74LVX3L384 (FST3384) bus switch product.  
Fairchild does not assume any responsibility for use of any circuitry described, no circuit patent licenses are implied and  
Fairchild reserves the right at any time without notice to change said circuitry and specifications.  
LIFE SUPPORT POLICY  
FAIRCHILD’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT  
DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT OF FAIRCHILD  
SEMICONDUCTOR CORPORATION. As used herein:  
1. Life support devices or systems are devices or systems  
which, (a) are intended for surgical implant into the  
body, or (b) support or sustain life, and (c) whose failure  
to perform when properly used in accordance with  
instructions for use provided in the labeling, can be rea-  
sonably expected to result in a significant injury to the  
user.  
2. A critical component in any component of a life support  
device or system whose failure to perform can be rea-  
sonably expected to cause the failure of the life support  
device or system, or to affect its safety or effectiveness.  
www.fairchildsemi.com  
5
www.fairchildsemi.com  
December 1998  
Revised December 1999  
FSTU6800  
10-Bit Bus Switch with Pre-Charged Outputs  
and 2V Undershoot Hardened Circuit (UHC ) Protection  
General Description  
Features  
4switch connection between two ports.  
The Fairchild Switch FSTU6800 provides 10-bits of high-  
speed CMOS TTL-compatible bus switching. The low on  
resistance of the switch allows inputs to be connected to  
outputs without adding propagation delay or generating  
additional ground bounce noise. Both the A Ports and the B  
Ports are “undershoot hardened” with UHC protection to  
support an extended input range to 2.0V below ground.  
Fairchild’s integrated Undershoot Hardened Circuit, UHC  
senses undershoot at the I/Os, and responds by preventing  
voltage differentials from developing and turning on the  
switch. The device also precharges the B Port to a select-  
able bias voltage (BiasV) to minimize live insertion noise.  
Undershoot Hardened to -2.0V.  
Soft enable turn-on to minimize bus-to-bus charge  
sharing during enable.  
Low lCC  
.
Zero bounce in flow-through mode.  
Output precharge to minimize live insertion noise.  
Control inputs compatible with TTL level.  
See Applications Note AN-5008 for details.  
The device is organized as a 10-bit switch with a bus  
enable (OE) signal. When OE is LOW, the switch is ON  
and Port A is connected to Port B. When OE is HIGH, the  
switch is OPEN and the B Port is precharged to BiasV  
through an equivalent 10-kresistor.  
Ordering Code:  
Order Number  
FSTU6800WM  
FSTU6800QSC  
FSTU6800MTC  
Package Number  
M24B  
Package Description  
24-Lead Small Outline Integrated Circuit (SOIC), JEDEC MO-153 4.4mm Wide  
24-Lead Quarter Size Outline Package (QSOP), JEDEC MO-137, 0.150” Wide  
24-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 4.4mm Wide  
MQA24  
MTC24  
Devices also available in Tape and Reel. Specify by appending the suffix letter “X” to the ordering code.  
Logic Diagram  
Connection Diagram  
Pin Descriptions  
Pin Name  
Description  
Truth Table  
OE  
A
Bus Switch Enable  
Bus A  
B0–B9  
OE  
L
Function  
Connect  
A0–A9  
BiasV  
B
Bus B  
H
Precharge  
BiasV  
Bus B Voltage Bias  
UHC is a trademark of Fairchild Semiconductor Corporation.  
© 1999 Fairchild Semiconductor Corporation  
DS500194  
www.fairchildsemi.com  
 
Absolute Maximum Ratings(Note 1)  
Recommended Operating  
Conditions (Note 3)  
Supply Voltage (VCC  
)
0.5V to +7.0V  
2.0V to +7.0V  
0.5V to +7.0V  
0.5V to +7.0V  
50mA  
DC Switch Voltage (VS)  
Power Supply Operating (VCC  
Precharge Supply (BiasV)  
)
4.0V to 5.5V  
1.5V to VCC  
0V to 5.5V  
0V to 5.5V  
Bias V Voltage Range  
DC Input Voltage (VIN) (Note 2)  
DC Input Diode Current (lIK) VIN< 0V  
DC Output (IOUT) Sink Current  
Input Voltage (VIN  
)
Output Voltage (VOUT  
)
128mA  
Input Rise and Fall Time (tr, tf)  
Switch Control Input  
DC VCC/GND Current (ICC/IGND  
)
+/100mA  
0 nS/V to 5 nS/V  
0nS/V to DC  
Storage Temperature Range (TSTG  
)
65°C to +150 °C  
Switch I/O  
Free Air Operating Temperature (TA)  
40 °C to +85 °C  
Note 1: The Absolute Maximum Ratings are those values beyond which  
the safety of the device cannot be guaranteed. The device should not be  
operated at these limits. The parametric values defined in the Electrical  
Characteristics tables are not guaranteed at the absolute maximum ratings.  
The Recommended Operating Conditions tables will define the conditions  
for actual device operation.  
Note 2: The input and output negative voltage ratings may be exceeded if  
the input and output diode current ratings are observed.  
Note 3: Unused control inputs must be held HIGH or LOW. They may not  
float.  
DC Electrical Characteristics  
TA = −40 °C to +85 °C  
VCC  
Symbol  
Parameter  
Units  
Conditions  
Typ  
(Note 5)  
(V)  
Min  
Max  
VIK  
Clamp Diode Voltage  
HIGH Level Input Voltage  
LOW Level Input Voltage  
Input Leakage Current  
Output Current  
4.5  
4.0–5.5  
4.0–5.5  
5.5  
1.2  
V
V
IIN = −18mA  
VIH  
VIL  
II  
2.0  
0.8  
V
±1.0  
µA  
mA  
µA  
0 VIN 5.5V  
IO  
4.5  
0.25  
BiasV = 2.4V, B = 0  
0 A VCC, VIN = VIH  
IOZ  
RON  
OFF-STATE Leakage Current  
Switch On Resistance  
(Note 4)  
5.5  
±1.0  
7
4.5  
4
4
V
V
V
V
V
S = 0V, IIN = 64 mA  
4.5  
7
S = 0V, IIN = 30 mA  
4.5  
8
15  
20  
3
S = 2.4V, IIN = 15 mA  
S = 2.4V, IIN = 15 mA  
S = VCC or GND, IOUT = 0  
4.0  
11  
ICC  
Quiescent Supply Current  
Increase in ICC per Input  
5.5  
µA  
ICC  
5.5  
2.5  
mA  
OE input at 3.4V  
Other inputs at VCC or GND  
IBIAS  
IOZU  
VIKU  
Bias Pin Leakage Current  
Switch Undershoot Current  
Voltage Undershoot  
5.5  
5.5  
5.5  
±1.0  
100  
µA  
µA  
V
OE = 0V, B = 0V, BiasV = 5.5V  
I
IN = −20 mA, OE = 5.5V, VOUT VIH  
2.0  
0.0 mA IIN ≥ −50 mA, OE = 5.5V  
Note 4: Measured by the voltage drop between A and B pins at the indicated current through the switch. On resistance is determined by the lower of the  
voltages on the two (A or B) pins.  
Note 5: Typical values are at VCC = 5.0V and TA= +25°C  
www.fairchildsemi.com  
2
AC Electrical Characteristics  
T
A = −40 °C to +85 °C,  
CL = 50 pF, RU = RD = 500Ω  
Symbol  
Parameter  
Units  
Conditions  
Figure No.  
V
CC = 4.5 – 5.5V  
V
CC = 4.0V  
Min  
Max  
Min  
Max  
t
PHL,tPLH  
Prop Delay Bus to Bus (Note 6)  
Output Enable Time  
0.25  
0.25  
ns  
ns  
ns  
ns  
ns  
VI = OPEN  
Figure 1  
Figure 2  
tPZH  
tPZL  
tPHZ  
tPLZ  
7.0  
7.0  
1.0  
1.0  
30.0  
30.0  
6.1  
35.0  
35.0  
6.5  
VI = OPEN  
BiasV = GND  
Figure 1  
Figure 2  
VI = 7V  
BiasV = 3V  
Output Disable Time  
VI = OPEN  
BiasV = GND  
Figure 1  
Figure 2  
7.3  
6.8  
VI = 7V  
BiasV = 3V  
Note 6: This parameter is guaranteed by design but is not tested. The bus switch contributes no propagation delay other than the RC delay of the typical On  
resistance of the switch and the 50 pF load capacitance, when driven by an ideal voltage the source (zero output impedance).  
Capacitance (Note 7)  
Symbol  
CIN  
CI/O  
Parameter  
Typ  
Max  
Units  
Conditions  
CC = 5.0V  
VCC, OE = 5.0V  
Control Pin Input Capacitance  
Input/Output Capacitance  
3
5
pF  
pF  
V
Note 7: TA = +25°C, f = 1 MHz, Capacitance is characterized but not tested.  
AC Loading and Waveforms  
Note: Input driven by 50 source terminated in 50 , RU = RD = 500 Ω  
Note: CL includes load and stray capacitance, CL= 50 pF  
Note: Input PRR = 1.0 MHz, tW = 500 nS  
FIGURE 1. AC Test Circuit  
FIGURE 2. AC Waveforms  
3
www.fairchildsemi.com  
Physical Dimensions inches (millimeters) unless otherwise noted  
24-Lead Small Outline Integrated Circuit (SOIC), JEDEC MO-153 4.4mm Wide  
Package Number M24B  
24-Lead Quarter Size Outline Package (QSOP), JEDEC MO-137, 0.150” Wide  
Package Number MQA24  
www.fairchildsemi.com  
4
Physical Dimensions inches (millimeters) unless otherwise noted (Continued)  
24-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 4.4mm Wide  
Package Number MTC24  
Technology Description  
The Fairchild Switch family derives from and embodies Fairchild’s proven switch technology used for several years in its  
74LVX3L384 (FST3384) bus switch product.  
Fairchild does not assume any responsibility for use of any circuitry described, no circuit patent licenses are implied and  
Fairchild reserves the right at any time without notice to change said circuitry and specifications.  
LIFE SUPPORT POLICY  
FAIRCHILD’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT  
DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT OF FAIRCHILD  
SEMICONDUCTOR CORPORATION. As used herein:  
1. Life support devices or systems are devices or systems  
which, (a) are intended for surgical implant into the  
body, or (b) support or sustain life, and (c) whose failure  
to perform when properly used in accordance with  
instructions for use provided in the labeling, can be rea-  
sonably expected to result in a significant injury to the  
user.  
2. A critical component in any component of a life support  
device or system whose failure to perform can be rea-  
sonably expected to cause the failure of the life support  
device or system, or to affect its safety or effectiveness.  
www.fairchildsemi.com  
5
www.fairchildsemi.com  
Preliminary  
December 1998  
Revised December 1999  
FSTU6800A  
10-Bit Bus Switch with Pre-Charged Outputs  
and 2V Undershoot Hardened Circuit (UHC ) Protection  
(Preliminary)  
General Description  
Features  
The Fairchild Switch FSTU6800A provides 10-bits of high-  
speed CMOS TTL-compatible bus switching. The low on  
resistance of the switch allows inputs to be connected to  
outputs without adding propagation delay or generating  
additional ground bounce noise. Both the A Ports and the B  
Ports are “undershoot hardened” with UHC protection to  
support an extended input range to 2.0V below ground.  
Fairchild’s integrated Undershoot Hardened Circuit, UHC  
senses undershoot at the I/Os, and responds by preventing  
voltage differentials from developing and turning on the  
switch. The device also precharges the B Port to a select-  
able bias voltage (BiasV) to minimize live insertion noise.  
4switch connection between two ports.  
Undershoot Hardened to -2.0V.  
Soft enable turn-on to minimize bus-to-bus charge  
sharing during enable.  
Low lCC  
.
Zero bounce in flow-through mode.  
Output precharge to minimize live insertion noise.  
Control inputs compatible with TTL level.  
See Applications Note AN-5008 for details.  
The device is organized as a 10-bit switch with a bus  
enable (OE) signal. When OE is LOW, the switch is ON  
and Port A is connected to Port B. When OE is HIGH, the  
switch is OPEN and the B Port is precharged to BiasV  
through an equivalent 10-kresistor.  
Ordering Code:  
Order Number  
FSTU6800AWM  
FSTU6800AQSC  
FSTU6800AMTC  
Package Number  
M24B  
Package Description  
24-Lead Small Outline Integrated Circuit (SOIC), JEDEC MO-153 4.4mm Wide  
24-Lead Quarter Size Outline Package (QSOP), JEDEC MO-137, 0.150” Wide  
24-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 4.4mm Wide  
MQA24  
MTC24  
Devices also available in Tape and Reel. Specify by appending the suffix letter “X” to the ordering code.  
UHC is a trademark of Fairchild Semiconductor Corporation.  
© 1999 Fairchild Semiconductor Corporation  
DS500209  
www.fairchildsemi.com  
 
Preliminary  
Logic Diagram  
Connection Diagram  
Pin Descriptions  
Truth Table  
Pin Name  
Description  
OE  
B0–B9  
Function  
OE  
A
Bus Switch Enable  
Bus A  
L
A0–A9  
BiasV  
Connect  
H
Precharge  
B
Bus B  
BiasV  
Bus B Voltage Bias  
www.fairchildsemi.com  
2
Preliminary  
Absolute Maximum Ratings(Note 1)  
Recommended Operating  
Conditions (Note 3)  
Supply Voltage (VCC  
)
0.5V to +7.0V  
2.0V to +7.0V  
0.5V to +7.0V  
0.5V to +7.0V  
50mA  
DC Switch Voltage (VS)  
Power Supply Operating (VCC  
Precharge Supply (BiasV)  
)
4.0V to 5.5V  
1.5V to VCC  
0V to 5.5V  
0V to 5.5V  
Bias V Voltage Range  
DC Input Voltage (VIN) (Note 2)  
DC Input Diode Current (lIK) VIN< 0V  
DC Output (IOUT) Sink Current  
Input Voltage (VIN  
)
Output Voltage (VOUT  
)
128mA  
Input Rise and Fall Time (tr, tf)  
Switch Control Input  
DC VCC/GND Current (ICC/IGND  
)
+/100mA  
0 nS/V to 5 nS/V  
0 nS/V to DC  
Storage Temperature Range (TSTG  
)
65°C to +150 °C  
Switch I/O  
Free Air Operating Temperature (TA)  
40 °C to +85 °C  
Note 1: The Absolute Maximum Ratings are those values beyond which  
the safety of the device cannot be guaranteed. The device should not be  
operated at these limits. The parametric values defined in the Electrical  
Characteristics tables are not guaranteed at the absolute maximum ratings.  
The Recommended Operating Conditions tables will define the conditions  
for actual device operation.  
Note 2: The input and output negative voltage ratings may be exceeded if  
the input and output diode current ratings are observed.  
Note 3: Unused control inputs must be held HIGH or LOW. They may not  
float.  
DC Electrical Characteristics  
TA = −40 °C to +85 °C  
VCC  
Symbol  
Parameter  
Units  
Conditions  
Typ  
(Note 5)  
(V)  
Min  
Max  
VIK  
Clamp Diode Voltage  
HIGH Level Input Voltage  
LOW Level Input Voltage  
Input Leakage Current  
Output Current  
4.5  
4.0–5.5  
4.0–5.5  
5.5  
1.2  
V
V
IIN = −18 mA  
VIH  
VIL  
II  
2.0  
0.8  
V
±1.0  
µA  
mA  
µA  
0 VIN 5.5V  
IO  
4.5  
0.25  
BiasV = 2.4V, B = 0  
0 A VCC, VIN = VIH  
IOZ  
RON  
OFF-STATE Leakage Current  
Switch On Resistance  
(Note 4)  
5.5  
±1.0  
7
4.5  
4
4
V
V
V
V
V
S = 0V, IIN = 64 mA  
4.5  
7
S = 0V, IIN = 30 mA  
4.5  
8
15  
20  
3
S = 2.4V, IIN = 15 mA  
S = 2.4V, IIN = 15 mA  
S = VCC or GND, IOUT = 0  
4.0  
11  
ICC  
Quiescent Supply Current  
Increase in ICC per Input  
5.5  
µA  
ICC  
OE input at 3.4V  
5.5  
2.5  
mA  
Other inputs at VCC or GND  
IBIAS  
IOZU  
VIKU  
Bias Pin Leakage Current  
Switch Undershoot Current  
Voltage Undershoot  
5.5  
5.5  
5.5  
±1.0  
100  
µA  
µA  
V
OE = 0V, B = 0V, BiasV = 5.5V  
I
IN = −20 mA, OE = 5.5V, VOUT VIH  
2.0  
0.0 mA IIN ≥ −50 mA, OE = 5.5V  
Note 4: Measured by the voltage drop between A and B pins at the indicated current through the switch. On resistance is determined by the lower of the  
voltages on the two (A or B) pins.  
Note 5: Typical values are at VCC = 5.0V and TA= +25°C  
3
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Preliminary  
AC Electrical Characteristics  
TA = −40 °C to +85 °C,  
CL = 50 pF, RU = RD = 500Ω  
Symbol  
Parameter  
Units  
Conditions  
Figure No.  
VCC = 4.5 – 5.5V  
VCC = 4.0V  
Min  
Max  
Min  
Max  
t
PHL, tPLH  
Prop Delay Bus to Bus (Note 6)  
Output Enable Time  
0.25  
0.25  
6.5  
6.5  
6.5  
6.8  
ns  
ns  
ns  
ns  
ns  
VI = OPEN  
Figure 1  
Figure 2  
tPZH  
tPZL  
tPHZ  
tPLZ  
1.0  
6.2  
6.2  
6.1  
7.3  
VI = OPEN  
BiasV = GND  
Figure 1  
Figure 2  
1.0  
1.0  
1.0  
VI = 7V  
BiasV = 3V  
Output Disable Time  
VI = OPEN  
BiasV = GND  
Figure 1  
Figure 2  
VI = 7V  
BiasV = 3V  
Note 6: This parameter is guaranteed by design but is not tested. The bus switch contributes no propagation delay other than the RC delay of the typical On  
resistance of the switch and the 50 pF load capacitance, when driven by an ideal voltage the source (zero output impedance).  
Capacitance (Note 7)  
Symbol  
CIN  
CI/O  
Parameter  
Typ  
Max  
Units  
Conditions  
CC = 5.0V  
VCC, OE = 5.0V  
Control Pin Input Capacitance  
Input/Output Capacitance  
3
5
pF  
pF  
V
Note 7: TA = +25°C, f = 1 MHz, Capacitance is characterized but not tested.  
AC Loading and Waveforms  
Note: Input driven by 50 source terminated in 50 , RU = RD = 500 Ω  
Note: CL includes load and stray capacitance, CL= 50 pF  
Note: Input PRR = 1.0 MHz, tW = 500 ns  
FIGURE 1. AC Test Circuit  
FIGURE 2. AC Waveforms  
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4
Preliminary  
Physical Dimensions inches (millimeters) unless otherwise noted  
24-Lead Small Outline Integrated Circuit (SOIC), JEDEC MO-153 4.4mm Wide  
Package Number M24B  
24-Lead Quarter Size Outline Package (QSOP), JEDEC MO-137, 0.150” Wide  
Package Number MQA24  
5
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Preliminary  
Physical Dimensions inches (millimeters) unless otherwise noted (Continued)  
24-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 4.4mm Wide  
Package Number MTC24  
Technology Description  
The Fairchild Switch family derives from and embodies Fairchild’s proven switch technology used for several years in its  
74LVX3L384 (FST3384) bus switch product.  
Fairchild does not assume any responsibility for use of any circuitry described, no circuit patent licenses are implied and  
Fairchild reserves the right at any time without notice to change said circuitry and specifications.  
LIFE SUPPORT POLICY  
FAIRCHILD’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT  
DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT OF FAIRCHILD  
SEMICONDUCTOR CORPORATION. As used herein:  
1. Life support devices or systems are devices or systems  
which, (a) are intended for surgical implant into the  
body, or (b) support or sustain life, and (c) whose failure  
to perform when properly used in accordance with  
instructions for use provided in the labeling, can be rea-  
sonably expected to result in a significant injury to the  
user.  
2. A critical component in any component of a life support  
device or system whose failure to perform can be rea-  
sonably expected to cause the failure of the life support  
device or system, or to affect its safety or effectiveness.  
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6

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