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74
A
C
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74ACT138
Absolute Maximum Ratings(Note 1)
Recommended Operating
Conditions
Note 1: Absolute maximum ratings are those values beyond which damage
to the device may occur. The databook specifications should be met, with-
out exception, to ensure that the system design is reliable over its power
supply, temperature, and output/input loading variables. Fairchild does not
recommend operation of FACT
circuits outside databook specifications.
DC Electrical Characteristics for AC
Note 2: All outputs loaded; thresholds on input associated with output under test.
Note 3: Maximum test duration 2.0 ms, one output loaded at a time.
Note 4: IIN and ICC @ 3.0V are guaranteed to be less than or equal to the respective limit @ 5.5V VCC.
Supply Voltage (VCC)
0.5V to +7.0V
DC Input Diode Current (IIK)
VI = 0.5V
20 mA
VI = VCC + 0.5V
+20 mA
DC Input Voltage (VI)
0.5V to V
CC + 0.5V
DC Output Diode Current (IOK)
VO = 0.5V
20 mA
VO = VCC + 0.5V
+20 mA
DC Output Voltage (VO)
0.5V to V
CC + 0.5V
DC Output Source
or Sink Current (IO)
卤50 mA
DC VCC or Ground Current
per Output Pin (ICC or IGND)
卤50 mA
Storage Temperature (TSTG)
65掳C to +150掳C
Junction Temperature (TJ)
PDIP
140
掳C
Supply Voltage (VCC)
AC
2.0V to 6.0V
ACT
4.5V to 5.5V
Input Voltage (VI)0V to VCC
Output Voltage (VO)0V to VCC
Operating Temperature (TA)
40掳C to +85掳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
Minimum Input Edge Rate (
V/t)
ACT Devices
VIN from 0.8V to 2.0V
VCC @ 4.5V, 5.5V
125 mV/ns
Symbol
Parameter
VCC
TA = +25掳CTA = 40掳C to +85掳C
Units
Conditions
(V)
Typ
Guaranteed Limits
VIH
Minimum HIGH Level
3.0
1.5
2.1
VOUT = 0.1V
Input Voltage
4.5
2.25
3.15
V
or VCC 0.1V
5.5
2.75
3.85
VIL
Maximum LOW Level
3.0
1.5
0.9
VOUT = 0.1V
Input Voltage
4.5
2.25
1.35
V
or VCC 0.1V
5.5
2.75
1.65
VOH
Minimum HIGH Level
3.0
2.99
2.9
Output Voltage
4.5
4.49
4.4
V
IOUT = 50 A
5.5
5.49
5.4
VIN = VIL or VIH
3.0
2.56
2.46
IOH = 12 mA
4.5
3.86
3.76
V
IOH = 24 mA
5.5
4.86
4.76
IOH = 24 mA (Note 2)
VOL
Maximum LOW Level
3.0
0.002
0.1
Output Voltage
4.5
0.001
0.1
V
IOUT = 50 A
5.5
0.001
0.1
VIN = VIL or VIH
3.0
0.36
0.44
IOL = 12 mA
4.5
0.36
0.44
V
IOL = 24 mA 0
5.5
0.36
0.44
IOL = 24 mA (Note 2)
IIN
Maximum Input
5.5
卤0.1
卤1.0
AV
I = VCC, GND
(Note 4)
Leakage Current
IOLD
Minimum Dynamic
5.5
75
mA
VOLD = 1.65V Max
IOHD
Output Current (Note 3)
5.5
75
mA
VOHD = 3.85V Min
ICC
(Note 4)
Maximum Quiescent
Supply Current
5.5
4.0
40.0
AV
IN = VCC or GND