74VHC238 查看數據表（PDF） - STMicroelectronics
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74VHC238 Datasheet PDF : 12 Pages
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74VHC238
Table 6: DC Specifications
Test Condition
Value
Symbol
Parameter
VIH High Level Input
Voltage
VIL Low Level Input
Voltage
VOH High Level Output
Voltage
VOL Low Level Output
Voltage
II
Input Leakage
Current
ICC Quiescent Supply
Current
VCC
(V)
2.0
3.0 to
5.5
2.0
3.0 to
5.5
2.0
3.0
4.5
3.0
4.5
2.0
3.0
4.5
3.0
4.5
0 to
5.5
5.5
TA = 25°C
-40 to 85°C -55 to 125°C Unit
Min. Typ. Max. Min. Max. Min. Max.
1.5
0.7VCC
1.5
1.5
0.7VCC
0.7VCC
V
0.5
0.3VCC
0.5
0.3VCC
0.5
0.3VCC V
IO=-50 µA
IO=-50 µA
IO=-50 µA
IO=-4 mA
IO=-8 mA
IO=50 µA
IO=50 µA
IO=50 µA
IO=4 mA
IO=8 mA
1.9 2.0
1.9
1.9
2.9 3.0
2.9
2.9
4.4 4.5
4.4
4.4
V
2.58
2.48
2.4
3.94
3.8
3.7
0.0 0.1
0.1
0.1
0.0 0.1
0.1
0.1
0.0 0.1
0.1
0.1 V
0.36
0.44
0.55
0.36
0.44
0.55
VI = 5.5V or GND
± 0.1
±1
± 1 µA
VI = VCC or GND
4
40
40 µA
Table 7: AC Electrical Characteristics (Input tr = tf = 3ns)
Test Condition
Symbol
Parameter
VCC CL
(V) (pF)
tPLH Propagation Delay 3.3(*) 15
tPHL Time
A, B, C, to Y
3.3(*) 50
5.0(**) 15
5.0(**) 50
tPLH Propagation Delay 3.3(*) 15
tPHL Time
G1 to Y
3.3(*) 50
5.0(**) 15
5.0(**) 50
tPLH Propagation Delay 3.3(*) 15
tPHL Time
G2A, G2B to Y
3.3(*) 50
5.0(**) 15
5.0(**) 50
(*) Voltage range is 3.3V ± 0.3V
(**) Voltage range is 5.0V ± 0.5V
Value
TA = 25°C
-40 to 85°C -55 to 125°C Unit
Min. Typ. Max. Min. Max. Min. Max.
8.0 12.3 1.0 14.5 1.0 14.5
10.5 15.8 1.0 18.0 1.0 18.0
ns
5.5 8.1 1.0 9.5 1.0 9.5
7.0 10.1 1.0 11.5 1.0 11.5
8.1 12.8 1.0 15.0 1.0 15.0
10.6 16.3 1.0 18.5 1.0 18.5
ns
5.4 8.1 1.0 9.5 1.0 9.5
6.9 10.1 1.0 11.5 1.0 11.5
8.1 12.3 1.0 14.5 1.0 14.5
10.6 15.8 1.0 18.0 1.0 18.0
ns
5.7 8.1 1.0 9.5 1.0 9.5
7.2 10.1 1.0 11.5 1.0 11.5
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