74VHCT14A 查看數據表（PDF） - STMicroelectronics
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74VHCT14A Datasheet PDF : 15 Pages
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Electrical characteristics
4
Electrical characteristics
74VHCT14A
Table 6. DC specifications
Test condition
Value
Symbol
Parameter
VCC
(V)
TA = 25°C
-40 to 85°C
-55 to
125°C
Unit
Min. Typ. Max. Min. Max. Min. Max.
Vt+ High level
4.5
threshold voltage
5.5
2.0
2.0
2.0 V
2.0
2.0
2.0
Vt- Low level
4.5
threshold voltage 5.5
0.6
0.6
0.6
V
0.6
0.6
0.6
Vh Hysteresis voltage 4.5
5.5
0.4
1.4 0.4 1.4 0.4 1.4 V
0.4
1.5 0.4 1.5 0.4 1.5
VOH High level output 4.5
IO=-50 µA
4.4 4.5
4.4
4.4
V
voltage
4.5
IO=-8 mA
3.94
3.8
3.7
VOL Low level output
4.5
voltage
4.5
IO=50 µA
IO=8 mA
0.0 0.1
0.1
0.1 V
0.36
0.44
0.55
II
Input leakage
current
0 to VI = 5.5V or GND
5.5
± 0.1
± 1.0
± 1.0 µA
ICC Quiescent supply 5.5 VI = VCC or GND
current
2
20
20 µA
+ICC
Additional worst
case supply
current
5.5 One Input at 3.4V,
other input at VCC
or GND
1.35
1.5
1.5 mA
IOPD Output leakage
0
VOUT = 5.5V
current
0.5
5.0
5.0 µA
6/15
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