74ACT374SCTR [FAIRCHILD]

Bus Driver, ACT Series, 1-Func, 8-Bit, True Output, CMOS, PDSO20, 0.300 INCH, LEAD FREE, MS-013AC, SOIC-20;
74ACT374SCTR
型号: 74ACT374SCTR
厂家: FAIRCHILD SEMICONDUCTOR    FAIRCHILD SEMICONDUCTOR
描述:

Bus Driver, ACT Series, 1-Func, 8-Bit, True Output, CMOS, PDSO20, 0.300 INCH, LEAD FREE, MS-013AC, SOIC-20

驱动 光电二极管 逻辑集成电路
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January 2008  
74AC374, 74ACT374  
Octal D-Type Flip-Flop with 3-STATE Outputs  
Features  
General Description  
I and I reduced by 50%  
The AC/ACT374 is a high-speed, low-power octal D-type  
flip-flop featuring separate D-type inputs for each flip-flop  
and 3-STATE outputs for bus-oriented applications. A  
buffered Clock (CP) and Output Enable (OE) are com-  
mon to all flip-flops.  
CC  
OZ  
Buffered positive edge-triggered clock  
3-STATE outputs for bus-oriented applications  
Outputs source/sink 24mA  
See 273 for reset version  
See 377 for clock enable version  
See 373 for transparent latch version  
See 574 for broadside pinout version  
See 564 for broadside pinout version with inverted  
outputs  
ACT374 has TTL-compatible inputs  
Ordering Information  
Order  
Number  
Package  
Number  
Package Description  
74AC374SC  
74AC374SJ  
74AC374MTC  
M20B  
M20D  
20-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300" Wide  
20-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide  
MTC20  
20-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 4.4mm  
Wide  
74AC374PC  
N20A  
M20B  
20-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300" Wide  
20-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300" Wide  
20-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide  
74ACT374SC  
74ACT374SJ  
74ACT374MSA  
74ACT374MTC  
M20D  
MSA20  
MTC20  
20-Lead Shrink Small Outline Package (SSOP), JEDEC MO-150, 5.3mm Wide  
20-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 4.4mm  
Wide  
74ACT374PC  
N20A  
20-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300" Wide  
Device also available in Tape and Reel. Specify by appending suffix letter “X” to the ordering number.  
All packages are lead free per JEDEC: J-STD-020B standard.  
©1988 Fairchild Semiconductor Corporation  
74AC374, 74ACT374 Rev. 1.5.0  
www.fairchildsemi.com  
Connection Diagram  
Logic Symbols  
IEEE/IEC  
Pin Description  
Pin  
Names  
Description  
D –D  
Data Inputs  
0
7
CP  
OE  
Clock Pulse Input  
3-STATE Output Enable Input  
3-STATE Outputs  
O –O  
0
7
Truth Table  
Functional Description  
Inputs  
Outputs  
The AC/ACT374 consists of eight edge-triggered flip-  
flops with individual D-type inputs and 3-STATE true out-  
puts. The buffered clock and buffered Output Enable are  
common to all flip-flops. The eight flip-flops will store the  
state of their individual D inputs that meet the setup and  
hold time requirements on the LOW-to-HIGH Clock (CP)  
transition. With the Output Enable (OE) LOW, the con-  
tents of the eight flip-flops are available at the outputs.  
When the OE is HIGH, the outputs go to the high imped-  
ance state. Operation of the OE input does not affect the  
state of the flip-flops.  
D
CP  
OE  
L
O
n
n
H
H
L
L
L
Z
X
X
H
H = HIGH Voltage Level  
L = LOW Voltage Level  
X = Immaterial  
Z = High Impedance  
= LOW-to-HIGH Transition  
©1988 Fairchild Semiconductor Corporation  
74AC374, 74ACT374 Rev. 1.5.0  
www.fairchildsemi.com  
2
Logic Diagram  
Please note that this diagram is provided only for the understanding of logic operations and should not be used to  
estimate propagation delays.  
©1988 Fairchild Semiconductor Corporation  
74AC374, 74ACT374 Rev. 1.5.0  
www.fairchildsemi.com  
3
Absolute Maximum Ratings  
Stresses exceeding the absolute maximum ratings may damage the device. The device may not function or be  
operable above the recommended operating conditions and stressing the parts to these levels is not recommended.  
In addition, extended exposure to stresses above the recommended operating conditions may affect device reliability.  
The absolute maximum ratings are stress ratings only.  
Symbol  
Parameter  
Rating  
V
I
Supply Voltage  
0.5V to +7.0V  
CC  
IK  
DC Input Diode Current  
V = −0.5V  
20mA  
+20mA  
I
V = V + 0.5  
I
CC  
V
DC Input Voltage  
0.5V to V + 0.5V  
I
CC  
I
DC Output Diode Current  
OK  
V
= −0.5V  
20mA  
+20mA  
O
V
= V + 0.5V  
CC  
O
V
DC Output Voltage  
DC Output Source or Sink Current  
0.5V to V + 0.5V  
O
CC  
I
±50mA  
±50mA  
O
I
or I  
DC V or Ground Current per Output Pin  
CC  
GND  
STG  
CC  
T
Storage Temperature  
Junction Temperature  
65°C to +150°C  
140°C  
T
J
Recommended Operating Conditions  
The Recommended Operating Conditions table defines the conditions for actual device operation. Recommended  
operating conditions are specified to ensure optimal performance to the datasheet specifications. Fairchild does not  
recommend exceeding them or designing to absolute maximum ratings.  
Symbol  
Parameter  
Rating  
V
Supply Voltage  
AC  
CC  
2.0V to 6.0V  
4.5V to 5.5V  
ACT  
V
Input Voltage  
Output Voltage  
Operating Temperature  
0V to V  
0V to V  
I
CC  
CC  
V
O
T
40°C to +85°C  
A
V / t  
Minimum Input Edge Rate, AC Devices:  
from 30% to 70% of V , V @ 3.3V, 4.5V, 5.5V  
125mV/ns  
V
IN  
CC CC  
V / t  
Minimum Input Edge Rate, ACT Devices:  
from 0.8V to 2.0V, V @ 4.5V, 5.5V  
125mV/ns  
V
IN  
CC  
©1988 Fairchild Semiconductor Corporation  
74AC374, 74ACT374 Rev. 1.5.0  
www.fairchildsemi.com  
4
DC Electrical Characteristics for AC  
T = +25°C T = −40°C to +85°C  
A
A
Symbol  
Parameter  
V
(V)  
Conditions  
Typ.  
Guaranteed Limits  
Units  
CC  
V
Minimum HIGH Level  
Input Voltage  
3.0  
V
= 0.1V or  
OUT  
1.5  
2.1  
2.1  
V
IH  
V
– 0.1V  
CC  
4.5  
5.5  
3.0  
4.5  
5.5  
3.0  
4.5  
5.5  
3.0  
2.25  
2.75  
1.5  
3.15  
3.85  
0.9  
3.15  
3.85  
0.9  
V
Maximum LOW Level  
Input Voltage  
V
V
= 0.1V or  
– 0.1V  
V
V
IL  
OUT  
CC  
2.25  
2.75  
2.99  
4.49  
5.49  
1.35  
1.65  
2.9  
1.35  
1.65  
2.9  
V
Minimum HIGH Level  
Output Voltage  
I
= –50µA  
OH  
OUT  
4.4  
4.4  
5.4  
5.4  
V
= V or V ,  
2.56  
2.46  
IN  
IL  
IH  
I
= –12mA  
OH  
4.5  
5.5  
V
= V or V ,  
3.86  
4.86  
3.76  
4.76  
IN  
IL  
IH  
I
= –24mA  
OH  
V
= V or V ,  
IN  
IL  
IH  
(1)  
I
I
= –24mA  
OH  
V
Maximum LOW Level  
Output Voltage  
3.0  
4.5  
5.5  
3.0  
= 50µA  
0.002  
0.001  
0.001  
0.1  
0.1  
0.1  
0.1  
V
OL  
OUT  
0.1  
0.1  
V
= V or V ,  
0.36  
0.44  
IN  
IL  
IH  
I
= 12mA  
OL  
4.5  
5.5  
V
= V or V ,  
0.36  
0.36  
0.44  
0.44  
IN  
IL  
IH  
I
= 24mA  
OL  
V
= V or V ,  
IN  
IL  
IH  
(1)  
I
= 24mA  
OL  
(2)  
I
Maximum Input  
Leakage Current  
5.5  
5.5  
V = V , GND  
±0.1  
±1.0  
±2.5  
µA  
µA  
IN  
I
CC  
I
Maximum 3-STATE  
Leakage Current  
V (OE) = V , V ;  
±0.25  
OZ  
I
IL IH  
V = V , GND;  
I
CC  
V
= V , GND  
O
CC  
I
Minimum Dynamic  
Output Current  
5.5  
5.5  
5.5  
V
V
V
= 1.65V Max.  
= 3.85V Min.  
75  
mA  
mA  
µA  
OLD  
OLD  
OHD  
(3)  
I
75  
40.0  
OHD  
(2)  
I
Maximum Quiescent  
Supply Current  
= V or GND  
4.0  
CC  
IN  
CC  
Notes:  
1. All outputs loaded; thresholds on input associated with output under test.  
2. I and I @ 3.0V are guaranteed to be less than or equal to the respective limit @ 5.5V V .  
CC  
IN  
CC  
3. Maximum test duration 2.0ms, one output loaded at a time.  
©1988 Fairchild Semiconductor Corporation  
74AC374, 74ACT374 Rev. 1.5.0  
www.fairchildsemi.com  
5
DC Electrical Characteristics for ACT  
T = +25°C T = −40°C to +85°C  
A
A
Symbol  
Parameter  
V
(V)  
Conditions  
Typ.  
Guaranteed Limits  
Units  
CC  
V
Minimum HIGH Level  
Input Voltage  
4.5  
V
= 0.1V or  
OUT  
1.5  
1.5  
2.0  
2.0  
0.8  
0.8  
4.4  
5.4  
2.0  
2.0  
0.8  
0.8  
4.4  
5.4  
V
IH  
V
0.1V  
CC  
5.5  
4.5  
5.5  
4.5  
5.5  
4.5  
V
Maximum LOW  
Level Input Voltage  
V
V
= 0.1V or  
0.1V  
1.5  
V
V
IL  
OUT  
CC  
1.5  
V
Minimum HIGH Level  
Output Voltage  
I
= −50µA  
4.49  
5.49  
OH  
OUT  
V
= V or V ,  
3.86  
3.76  
IN  
IL  
IH  
I
= −24mA  
OH  
5.5  
V
= V or V ,  
4.86  
4.76  
IN  
IL  
IH  
(4)  
I
I
= −24mA  
OH  
V
Maximum LOW  
4.5  
5.5  
4.5  
= 50µA  
0.001  
0.001  
0.1  
0.1  
0.1  
0.1  
V
OL  
OUT  
Level Output Voltage  
V
= V or V ,  
0.36  
0.44  
IN  
IL  
IH  
I
= 24mA  
OL  
5.5  
V
= V or V ,  
0.36  
0.44  
IN  
IL  
IH  
(4)  
I
= 24mA  
OL  
I
Maximum Input  
Leakage Current  
5.5  
5.5  
V = V , GND  
±0.1  
±1.0  
±2.5  
µA  
µA  
IN  
I
CC  
I
Maximum 3-STATE  
Leakage Current  
V = V , V ;  
±0.25  
OZ  
I
IL IH  
V
= V , GND  
O
CC  
I
I
Maximum I /Input  
5.5  
5.5  
5.5  
5.5  
V = V 2.1V  
0.6  
1.5  
75  
mA  
mA  
mA  
µA  
CCT  
OLD  
OHD  
CC  
I
CC  
Minimum Dynamic  
V
V
V
= 1.65V Max.  
OLD  
OHD  
(5)  
Output Current  
I
= 3.85V Min.  
75  
40.0  
I
Maximum Quiescent  
Supply Current  
= V or GND  
4.0  
CC  
IN  
CC  
Notes:  
4. All outputs loaded; thresholds on input associated with output under test.  
5. Maximum test duration 2.0ms, one output loaded at a time.  
©1988 Fairchild Semiconductor Corporation  
74AC374, 74ACT374 Rev. 1.5.0  
www.fairchildsemi.com  
6
AC Electrical Characteristics for AC  
T = +25°C,  
T = −40°C to +85°,  
A
A
C = 50pF  
C = 50pF  
L
L
(6)  
Symbol  
Parameter  
V
(V)  
Min.  
60  
Typ. Max.  
Min.  
Max.  
Units  
CC  
f
Maximum Clock Frequency  
3.3  
110  
155  
11.0  
8.0  
60  
100  
1.5  
1.5  
2.0  
1.5  
1.5  
1.0  
1.5  
1.0  
2.0  
2.0  
1.0  
1.0  
MHz  
MAX  
5.0  
3.3  
5.0  
3.3  
5.0  
3.3  
5.0  
3.3  
5.0  
3.3  
5.0  
3.3  
5.0  
100  
3.0  
2.5  
2.5  
2.0  
3.0  
2.0  
2.5  
2.0  
3.0  
2.0  
2.0  
1.5  
t
Propagation Delay,  
13.5  
9.5  
15.5  
10.5  
14.0  
10.0  
13.0  
9.5  
ns  
ns  
ns  
ns  
ns  
ns  
PLH  
PHL  
PZH  
CP to O  
n
t
Propagation Delay,  
CP to O  
10.0  
7.0  
12.5  
9.0  
n
t
Output Enable Time  
Output Enable Time  
Output Disable Time  
Output Disable Time  
9.5  
11.5  
8.5  
7.0  
t
9.0  
11.5  
8.5  
13.0  
9.5  
PZL  
6.5  
t
10.5  
8.0  
12.5  
11.0  
11.5  
8.5  
14.5  
12.5  
12.5  
10.0  
PHZ  
t
8.0  
PLZ  
6.5  
Note:  
6. Voltage range 3.3 is 3.3V ± 0.3V. Voltage range 5.0 is 5.0V ± 0.5V.  
AC Operating Requirements for AC  
T = +25°C,  
T = −40°C to +85°C,  
A
A
C = 50pF  
C = 50pF  
L
L
(7)  
Symbol  
Parameter  
V
(V)  
Typ.  
Guaranteed Minimum  
Units  
CC  
t
Setup Time, HIGH or LOW,  
3.3  
2.0  
1.0  
1.0  
0
5.5  
6.0  
4.5  
1.0  
1.5  
6.0  
4.5  
ns  
S
D to CP  
n
5.0  
3.3  
5.0  
3.3  
5.0  
4.0  
1.0  
1.5  
5.5  
4.0  
t
Hold Time, HIGH or LOW,  
ns  
ns  
H
D to CP  
n
t
CP Pulse Width, HIGH or LOW  
4.0  
2.5  
W
Note:  
7. Voltage range 3.3 is 3.3V ± 0.3V. Voltage range 5.0 is 5.0V ± 0.5V.  
©1988 Fairchild Semiconductor Corporation  
74AC374, 74ACT374 Rev. 1.5.0  
www.fairchildsemi.com  
7
AC Electrical Characteristics for ACT  
T = +25°C,  
T = −40°C to +85°C,  
A
A
C = 50pF  
C = 50pF  
L
L
(8)  
Symbol  
Parameter  
V
(V)  
Min. Typ. Max.  
Min.  
Max.  
Units  
CC  
f
Maximum Clock  
Frequency  
5.0  
100  
2.0  
2.0  
160  
8.5  
8.0  
90  
2.0  
1.5  
MHz  
MAX  
t
Propagation Delay,  
5.0  
5.0  
10.0  
9.5  
11.5  
11.0  
ns  
ns  
PLH  
PHL  
PZH  
CP to O  
n
t
Propagation Delay,  
CP to O  
n
t
Output Enable Time  
Output Enable Time  
Output Disable Time  
Output Disable Time  
5.0  
5.0  
5.0  
5.0  
2.0  
1.5  
1.5  
1.5  
8.0  
8.0  
8.5  
7.0  
9.5  
9.0  
1.5  
1.5  
1.0  
1.0  
10.5  
10.5  
12.5  
10.0  
ns  
ns  
ns  
ns  
t
PZL  
PHZ  
t
11.5  
8.5  
t
PLZ  
Note:  
8. Voltage range 5.0 is 5.0V ± 0.5V.  
AC Operating Requirements for ACT  
T = +25°C,  
T = −40°C to +85°C,  
A
A
C = 50pF  
C = 50pF  
L
L
(9)  
Symbol  
Parameter  
V
(V)  
Typ.  
Guaranteed Minimum  
Units  
CC  
t
Setup Time, HIGH or LOW,  
5.0  
1.0  
5.5  
5.5  
1.5  
5.0  
ns  
S
D to CP  
n
t
Hold Time, HIGH or LOW,  
5.0  
5.0  
0
1.5  
5.0  
ns  
ns  
H
D to CP  
n
t
CP Pulse Width,  
HIGH or LOW  
2.5  
W
Note:  
9. Voltage range 5.0 is 5.0V ± 0.5V.  
Capacitance  
Symbol  
Parameter  
Conditions  
Typ.  
Units  
C
Input Capacitance  
V
= OPEN  
4.5  
pF  
IN  
CC  
©1988 Fairchild Semiconductor Corporation  
74AC374, 74ACT374 Rev. 1.5.0  
www.fairchildsemi.com  
8
Physical Dimensions  
13.00  
12.60  
A
11.43  
20  
11  
B
9.50  
10.65 7.60  
10.00 7.40  
2.25  
1
10  
0.65  
0.51  
0.35  
1.27  
PIN ONE  
INDICATOR  
1.27  
M
0.25  
C B A  
LAND PATTERN RECOMMENDATION  
SEE DETAIL A  
2.65 MAX  
0.33  
0.20  
C
0.10  
C
0.30  
0.10  
SEATING PLANE  
0.75  
0.25  
X 45°  
NOTES: UNLESS OTHERWISE SPECIFIED  
(R0.10)  
(R0.10)  
A) THIS PACKAGE CONFORMS TO JEDEC  
MS-013, VARIATION AC, ISSUE E  
GAGE PLANE  
B) ALL DIMENSIONS ARE IN MILLIMETERS.  
C) DIMENSIONS DO NOT INCLUDE MOLD  
FLASH OR BURRS.  
0.25  
8°  
0°  
D) CONFORMS TO ASME Y14.5M-1994  
1.27  
0.40  
SEATING PLANE  
E) LANDPATTERN STANDARD: SOIC127P1030X265-20L  
F) DRAWING FILENAME: MKT-M20BREV3  
(1.40)  
DETAIL A  
SCALE: 2:1  
Figure 1. 20-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300" Wide  
Package drawings are provided as a service to customers considering Fairchild components. Drawings may change in any manner  
without notice. Please note the revision and/or date on the drawing and contact a Fairchild Semiconductor representative to verify or  
obtain the most recent revision. Package specifications do not expand the terms of Fairchild’s worldwide terms and conditions,  
specifically the warranty therein, which covers Fairchild products.  
Always visit Fairchild Semiconductor’s online packaging area for the most recent package drawings:  
http://www.fairchildsemi.com/packaging/  
©1988 Fairchild Semiconductor Corporation  
74AC374, 74ACT374 Rev. 1.5.0  
www.fairchildsemi.com  
9
Physical Dimensions (Continued)  
Figure 2. 20-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide  
Package drawings are provided as a service to customers considering Fairchild components. Drawings may change in any manner  
without notice. Please note the revision and/or date on the drawing and contact a Fairchild Semiconductor representative to verify or  
obtain the most recent revision. Package specifications do not expand the terms of Fairchild’s worldwide terms and conditions,  
specifically the warranty therein, which covers Fairchild products.  
Always visit Fairchild Semiconductor’s online packaging area for the most recent package drawings:  
http://www.fairchildsemi.com/packaging/  
©1988 Fairchild Semiconductor Corporation  
74AC374, 74ACT374 Rev. 1.5.0  
www.fairchildsemi.com  
10  
Physical Dimensions (Continued)  
Figure 3. 20-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 4.4mm Wide  
Package drawings are provided as a service to customers considering Fairchild components. Drawings may change in any manner  
without notice. Please note the revision and/or date on the drawing and contact a Fairchild Semiconductor representative to verify or  
obtain the most recent revision. Package specifications do not expand the terms of Fairchild’s worldwide terms and conditions,  
specifically the warranty therein, which covers Fairchild products.  
Always visit Fairchild Semiconductor’s online packaging area for the most recent package drawings:  
http://www.fairchildsemi.com/packaging/  
©1988 Fairchild Semiconductor Corporation  
74AC374, 74ACT374 Rev. 1.5.0  
www.fairchildsemi.com  
11  
Physical Dimensions (Continued)  
26.92  
24.89  
PIN #1  
7.11  
6.09  
3.43  
3.17  
5.33 MAX  
(0.97)  
1.78  
7.87  
7.62  
7° TYP  
1.14  
7° TYP  
3.55  
2.54  
0.36  
3.17  
0.38 MIN  
10.92 MAX  
0.56  
0.20  
0.35  
.001[.025]  
C
NOTES:  
Figure 4. 20-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300" Wide  
Package drawings are provided as a service to customers considering Fairchild components. Drawings may change in any manner  
without notice. Please note the revision and/or date on the drawing and contact a Fairchild Semiconductor representative to verify or  
obtain the most recent revision. Package specifications do not expand the terms of Fairchild’s worldwide terms and conditions,  
specifically the warranty therein, which covers Fairchild products.  
Always visit Fairchild Semiconductor’s online packaging area for the most recent package drawings:  
http://www.fairchildsemi.com/packaging/  
©1988 Fairchild Semiconductor Corporation  
74AC374, 74ACT374 Rev. 1.5.0  
www.fairchildsemi.com  
12  
Physical Dimensions (Continued)  
Figure 5. 20-Lead Shrink Small Outline Package (SSOP), JEDEC MO-150, 5.3mm Wide  
Package drawings are provided as a service to customers considering Fairchild components. Drawings may change in any manner  
without notice. Please note the revision and/or date on the drawing and contact a Fairchild Semiconductor representative to verify or  
obtain the most recent revision. Package specifications do not expand the terms of Fairchild’s worldwide terms and conditions,  
specifically the warranty therein, which covers Fairchild products.  
Always visit Fairchild Semiconductor’s online packaging area for the most recent package drawings:  
http://www.fairchildsemi.com/packaging/  
©1988 Fairchild Semiconductor Corporation  
74AC374, 74ACT374 Rev. 1.5.0  
www.fairchildsemi.com  
13  
TRADEMARKS  
The following includes registered and unregistered trademarks and service marks, owned by Fairchild Semiconductor and/or its global  
subsidiaries, and is not intended to be an exhaustive list of all such trademarks.  
ACEx®  
PDP-SPM™  
SyncFET™  
®
FPS  
Power220®  
Build it Now™  
CorePLUS™  
CROSSVOLT™  
CTL™  
Current Transfer Logic™  
EcoSPARK®  
EZSWITCH™ *  
FRFET®  
Power247®  
Global Power ResourceSM  
Green FPS™  
Green FPSe-Series™  
GTO™  
i-Lo™  
IntelliMAX™  
ISOPLANAR™  
MegaBuck™  
MICROCOUPLER™  
MicroFET™  
The Power Franchise®  
POWEREDGE®  
Power-SPM™  
PowerTrench®  
Programmable Active Droop™  
QFET®  
TinyBoost™  
TinyBuck™  
TinyLogic®  
TINYOPTO™  
TinyPower™  
TinyPWM™  
TinyWire™  
µSerDes™  
UHC®  
QS™  
QT Optoelectronics™  
Quiet Series™  
RapidConfigure™  
SMART START™  
SPM®  
STEALTH™  
SuperFET™  
SuperSOT-3  
SuperSOT-6  
SuperSOT-8  
®
Fairchild®  
Fairchild Semiconductor®  
FACT Quiet Series™  
FACT®  
MicroPak™  
MillerDrive™  
Motion-SPM™  
OPTOLOGIC®  
Ultra FRFET™  
UniFET™  
VCX™  
FAST®  
OPTOPLANAR®  
FastvCore™  
®
FlashWriter® *  
* EZSWITCH™ and FlashWriter® are trademarks of System General Corporation, used under license by Fairchild Semiconductor.  
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. THESE SPECIFICATIONS DO NOT EXPAND THE TERMS OF FAIRCHILD’S  
WORLDWIDE TERMS AND CONDITIONS, SPECIFICALLY THE WARRANTY THEREIN, WHICH COVERS THESE PRODUCTS.  
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 2. A critical component in any component of a life support,  
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 of the user.  
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  
This datasheet contains the design specifications for product  
development. Specifications may change in any manner without notice.  
Advance Information  
Formative or In Design  
This datasheet contains preliminary data; supplementary data will be  
published at a later date. Fairchild Semiconductor reserves the right to  
make changes at any time without notice to improve design.  
Preliminary  
First Production  
Full Production  
Not In Production  
This datasheet contains final specifications. Fairchild Semiconductor  
reserves the right to make changes at any time without notice to improve  
the design.  
No Identification Needed  
Obsolete  
This datasheet contains specifications on a product that has been  
discontinued by Fairchild Semiconductor. The datasheet is printed for  
reference information only.  
Rev. I32  
©1988 Fairchild Semiconductor Corporation  
74AC374, 74ACT374 Rev. 1.5.0  
www.fairchildsemi.com  
14  

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