FST16210MTD [FAIRCHILD]

20-Bit Bus Switch; 20位总线开关
FST16210MTD
型号: FST16210MTD
厂家: FAIRCHILD SEMICONDUCTOR    FAIRCHILD SEMICONDUCTOR
描述:

20-Bit Bus Switch
20位总线开关

开关
文件: 总4页 (文件大小:118K)
中文:  中文翻译
下载:  下载PDF数据表文档文件
November 1998  
Revised June 2005  
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.  
4 switch 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  
OE1  
OE2  
1A, 1B  
2A, 2B  
2A 2B  
Z
Pin Name  
Description  
L
L
L
H
L
1A 1B  
OE1, OE2  
1A, 2A  
Bus Switch Enables  
Bus A  
1A 1B  
H
H
Z
Z
2A 2B  
Z
1B, 2B  
Bus B  
H
© 2005 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 Ratingsare 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 Conditionstable 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  
Min  
Typ  
(Note 4)  
Max  
V
V
V
Clamp Diode Voltage  
4.5  
4.05.5  
4.05.5  
5.5  
1.2  
V
V
V
A
A
A
I
18mA  
IK  
IN  
HIGH Level Input Voltage  
LOW Level Input Voltage  
Input Leakage Current  
2.0  
IH  
IL  
0.8  
1.0  
10  
1.0  
7
I
0
V
5.5V  
I
IN  
0
V
0
5.5V  
A, B  
0V, I  
IN  
I
OFF-STATE Leakage Current  
Switch On Resistance  
(Note 5)  
5.5  
V
CC  
OZ  
R
4.5  
4
4
V
V
V
V
V
64mA  
30mA  
ON  
IN  
IN  
IN  
IN  
IN  
IN  
4.5  
7
0V, I  
IN  
4.5  
8
12  
20  
3
2.4V, I  
2.4V, I  
15mA  
15mA  
IN  
IN  
4.0  
11  
I
Quiescent Supply Current  
5.5  
A
V
or GND, I  
OUT  
0
CC  
CC  
I
Increase in I per Input  
5.5  
2.5  
mA  
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,  
50pF, RU RD 500  
A
C
L
Figure  
No.  
Symbol  
Parameter  
Units  
Conditions  
V
4.5 – 5.5V  
V
4.0V  
Max  
CC  
CC  
Min  
Max  
Min  
t
t
,t  
Propagation Delay Bus to Bus  
(Note 6)  
0.25  
0.25  
ns  
ns  
V
OPEN  
7V for t  
Figures  
1, 2  
PHL PLH  
I
, t  
Output Enable Time  
1.5  
1.5  
6.0  
7.0  
6.5  
V
V
V
V
Figures  
1, 2  
PZH PZL  
I
I
I
I
PZL  
OPEN for t  
PZH  
PHZ  
t
, t  
Output Disable Time  
7.2  
ns  
7V for t  
Figures  
1, 2  
PHZ PLZ  
PLZ  
OPEN for t  
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  
5.0V  
C
Control Pin Input Capacitance  
3
pF  
V
V
IN  
CC  
CC  
C
Input/Output Capacitance  
6
pF  
, OE 5.0V  
I/O  
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  
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  
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 Fairchilds 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  
FAIRCHILDS 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

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