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54AC20
Dual 4-Input NAND Gate
General Description
The ’AC20 contains four 4-input NAND gates.
Features
n ICC reduced by 50%
n Outputs source/sink 24 mA
n Standard Military Drawing (SMD)
n ’AC20: 5962-87613
Logic Symbol
IEEE/IEC
July 1998
Pin Names
An, Bn, Cn, Dn
On
Description
Inputs
Outputs
Connection Diagrams
Pin Assignment
for DIP and Flatpak
DS100264-1
Pin Assignment
for LCC
DS100264-3
FACT™ is a trademark of Fairchild Semiconductor Corporation.
© 1998 National Semiconductor Corporation DS100264
DS100264-2
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Absolute Maximum Ratings (Note 1)
If Military/Aerospace specified devices are required,
please contact the National Semiconductor Sales Office/
Distributors for availability and specifications.
Junction Temperature (TJ)
CDIP
Recommended Operating
175˚C
Supply Voltage (VCC)
DC Input Diode Current (IIK)
VI = −0.5V
VI = VCC + 0.5V
DC Input Voltage (VI)
DC Output Diode Current (IOK)
VO = −0.5V
VO = VCC + 0.5V
DC Output Voltage (VO)
DC Output Source
or Sink Current (IO)
DC VCC or Ground Current
per Output Pin (ICC or IGND)
Storage Temperature (TSTG)
−0.5V to +7.0V
−20 mA
+20 mA
−0.5V to VCC + 0.5V
−20 mA
+20 mA
−0.5V to VCC + 0.5V
±50 mA
±50 mA
−65˚C to +150˚C
Conditions
Supply Voltage (VCC)
’AC
2.0V to 6.0V
Input Voltage (VI)
Output Voltage (VO)
Operating Temperature (TA)
54AC
0V to VCC
0V to VCC
−55˚C to +125˚C
Minimum Input Edge Rate (∆V/∆t)
’AC Devices
VIN from 30% to 70% of VCC
VCC @ 3.3V, 4.5V, 5.5V
125 mV/ns
Note 1: Absolute maximum ratings are those values beyond which damage
to the device may occur. The databook specifications should be met, without
exception, to ensure that the system design is reliable over its power supply,
temperature, and output/input loading variables. National does not recom-
mend operation of FACT™ circuits outside databook specifications.
DC Characteristics for ’AC Family Devices
Symbol
Parameter
VCC
(V)
VIH
VIL
VOH
VOL
IIN
IOLD
IOHD
Minimum High Level
Input Voltage
Maximum Low Level
Input Voltage
Minimum High Level
Output Voltage
Maximum Low Level
Output Voltage
Maximum Input
Leakage Current
Minimum Dynamic
Output Current (Note 3)
3.0
4.5
5.5
3.0
4.5
5.5
3.0
4.5
5.5
3.0
4.5
5.5
3.0
4.5
5.5
3.0
4.5
5.5
5.5
5.5
5.5
54AC
TA =
−55˚C to
+125˚C
Guaranteed
Limits
2.1
3.15
3.85
0.9
1.35
1.65
2.9
4.4
5.4
2.4
3.7
4.7
0.1
0.1
0.1
0.5
0.5
0.5
±1.0
50
−50
Units
Conditions
VOUT = 0.1V
V or VCC − 0.1V
VOUT = 0.1V
V or VCC − 0.1V
IOUT = −50 µA
V
(Note 2)
VIN = VIL or VIH
IOH = −12 mA
V IOH = −24 mA
IOH = −24 mA
IOUT = 50 µA
V
(Note 2)
VIN = VIL or VIH
IOL = 12 mA
V IOL = 24 mA
IOL = 24 mA
µA VI = VCC, GND
mA VOLD = 1.65V Max
mA VOHD = 3.85V Min
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