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MC74AC138_15 Datasheet, PDF (5/10 Pages) ON Semiconductor – 1-of-8 Decoder/Demultiplexer
MC74AC138, MC74ACT138
DC CHARACTERISTICS
74AC
74AC
Symbol
Parameter
VCC
(V)
TA = +25°C
TA =
−40°C to +85°C
Unit
Conditions
Typ
Guaranteed Limits
VIH
Minimum High Level
Input Voltage
3.0
1.5 2.1
2.1
4.5 2.25 3.15
3.15
5.5 2.75 3.85
3.85
VOUT = 0.1 V
V
or VCC − 0.1 V
VIL
Maximum Low Level
Input Voltage
3.0
1.5 0.9
0.9
4.5 2.25 1.35
1.35
5.5 2.75 1.65
1.65
VOUT = 0.1 V
V
or VCC − 0.1 V
VOH
Minimum High Level
Output Voltage
3.0 2.99 2.9
2.9
4.5 4.49 4.4
4.4
5.5 5.49 5.4
5.4
IOUT = −50 μA
V
3.0
− 2.56
2.46
4.5
− 3.86
3.76
5.5
− 4.86
4.76
*VIN = VIL or VIH
−12 mA
V
IOH
−24 mA
−24 mA
VOL
Maximum Low Level
Output Voltage
3.0 0.002 0.1
0.1
4.5 0.001 0.1
0.1
5.5 0.001 0.1
0.1
IOUT = 50 μA
V
3.0
− 0.36
0.44
4.5
− 0.36
0.44
5.5
− 0.36
0.44
*VIN = VIL or VIH
V
IOL
12 mA
24 mA
24 mA
IIN
Maximum Input
Leakage Current
5.5
− ±0.1
±1.0
μA
VI = VCC, GND
IOLD
IOHD
†Minimum Dynamic
Output Current
5.5
−
−
75
5.5
−
−
−75
mA
VOLD = 1.65 V Max
mA
VOHD = 3.85 V Min
ICC
Maximum Quiescent
Supply Current
5.5
−
8.0
80
μA
VIN = VCC or GND
*All outputs loaded; thresholds on input associated with output under test.
†Maximum test duration 2.0 ms, one output loaded at a time.
NOTE: IIN and ICC @ 3.0 V are guaranteed to be less than or equal to the respective limit @ 5.5 V VCC.
AC CHARACTERISTICS
74AC
74AC
Symbol
Parameter
VCC*
(V)
TA = +25°C
CL = 50 pF
TA = −40°C to +85°C
CL = 50 pF
Unit
Fig.
No.
Min Typ Max
Min
Max
Propagation Delay
tPLH
An to On
Propagation Delay
tPHL
An to On
Propagation Delay
tPLH
E1 or E2 to On
Propagation Delay
tPHL
E1 or E2 to On
Propagation Delay
tPLH
E3 to On
Propagation Delay
tPHL
E3 to On
*Voltage Range 3.3 V is 3.3 V ±0.3 V.
*Voltage Range 5.0 V is 5.0 V ±0.5 V.
3.3 1.5 8.5 13.0
1.5
5.0 1.5 6.5 9.5
1.5
3.3 1.5 8.0 12.5
1.5
5.0 1.5 6.0 9.0
1.5
3.3 1.5 11.0 15.0
1.5
5.0 1.5 8.0 11.0
1.5
3.3 1.5 9.5 13.5
1.5
5.0 1.5 7.0 9.5
1.5
3.3 1.5 11.0 15.5
1.5
5.0 1.5 8.0 11.0
1.5
3.3 1.5 8.5 13.0
1.5
5.0 1.5 6.0 8.0
1.0
15.0
10.5
ns
3−6
14.0
10.5
ns
3−6
16.0
12.0
ns
3−6
15.0
10.5
ns
3−6
16.5
12.5
ns
3−6
14.0
9.5
ns
3−6
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