74VHC240(1999) 查看數據表（PDF） - STMicroelectronics
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74VHC240 Datasheet PDF : 8 Pages
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74VHC240
DC SPECIFICATIONS
Symb ol
Parameter
VIH High Level Input
Voltage
VIL Low Level Input
Voltage
VOH High Level Output
Voltage
VOL Low Level Output
Voltage
IOZ High Impedance
Output Leakage
Current
II Input Leakage Current
ICC Quiescent Supply
Current
Test Conditions
V CC
( 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
5.5
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
VI = VIH orVIL
VO = VCC orGND
0 to 5.5
5.5
VI = 5.5V or GND
VI = VCC orGND
Value
TA = 25 oC
-40 to 85 oC
Min. Typ . Max. Min . Max.
1.5
1.5
0.7VCC
0.7VCC
0.5
0.5
0.3VCC
0.3VCC
1.9 2.0
1.9
2.9 3.0
2.9
4.4 4.5
4.4
2.58
2.48
3.94
3.8
0.0 0.1
0.1
0.0 0.1
0.1
0.0 0.1
0.1
0.36
0.44
0.36
0.44
±0.25
±2.5
Un it
V
V
V
V
µA
±0.1
±1.0 µA
4
40
µA
AC ELECTRICAL CHARACTERISTICS (Input tr = tf =3 ns)
Symb ol
Parameter
Test Condition
V CC
CL
( V)
(pF)
tPLH Propagation Delay
tPHL Time
3.3(*)
15
3.3(*)
50
5.0(**)
15
5.0(**)
50
tPZL Output Enable Time
tPZH
tPLZ
tPHZ
tOSLH
tOSHL
Output Disable Time
Output to Output Skew
Time (note 1)
3.3(*)
3.3(*)
5.0(**)
5.0(**)
3.3(*)
5.0(**)
3.3(*)
5.0(**)
15
RL = 1KΩ
50
RL = 1KΩ
15
RL= 1KΩ
50
RL= 1KΩ
50
RL = 1KΩ
50
RL = 1KΩ
50
50
(*) Voltage range is 3.3V ± 0.3V
(**) Voltage range is 5V ± 0.5V
Note 1: Parameter guaranteed by design. tsoLH = |tpLHm- tpLHn|, tsoHL = |tpHLm - tpHLn|
Value
TA = 25 oC
Min. Typ. Max.
5.3 7.5
7.8 11.0
3.6 5.5
5.1 7.5
6.6 10.6
9.1 14.1
4.7 7.3
6.2 9.3
10.3 14.0
6.7 9.2
1.5
1.0
-40 to 85 oC
Min . Max.
1.0 9.0
1.0 12.5
1.0 6.5
1.0 8.5
1.0 12.5
1.0 16.0
1.0 8.5
1.0 10.5
1.0 16.0
1.0 10.5
1.5
1.0
Unit
ns
ns
ns
ns
3/8
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