74VHC245T データシートの表示（PDF） - STMicroelectronics
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74VHC245T Datasheet PDF : 8 Pages
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74VHC245
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 or VIL
VO = VCC or GND
0 to 5.5
5.5
VI = 5.5V or GND
VI = VCC or GND
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
±0.1
±1.0
4
40
Un it
V
V
V
V
µA
µA
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
tPLZ Output Disable Time
tPHZ
3.3(*)
3.3(*)
5.0(**)
15 RL = 1KΩ
50 RL = 1KΩ
15 RL = 1KΩ
tPZL Output Enable Time
5.0(**)
3.3(*)
50 RL = 1KΩ
50 RL = 1KΩ
tPZH
tOSLH Output to Output Skew
5.0(**)
3.3(*)
50 RL = 1KΩ
50
tOSHL Time (note 1)
5.0(**)
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.
5.8 8.4
8.3 11.9
4.0 5.5
5.5 7.5
8.5 13.2
11.0 16.7
5.8 8.5
7.3 10.6
11.5 15.8
7.0 9.7
1.5
1.0
-40 to 85 oC
Min . Max.
1.0 10.0
1.0 13.5
1.0 6.5
1.0 8.5
1.0 15.5
1.0 19.0
1.0 10.0
1.0 12.0
1.0 18.0
1.0 11.0
1.5
1.0
Unit
ns
ns
ns
ns
3/8
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