74VHCT14 查看數據表（PDF） - STMicroelectronics
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74VHCT14 Datasheet PDF : 7 Pages
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74VHCT14A
DC SPECIFICATIONS
Symb ol
Parameter
Vt+ High Level Threshold
Voltage
Vt- Low Level Threshold
Voltage
Vh Hysteresis Voltage
VOH High Level Output
Voltage
VOL Low Level Output
Voltage
II Input Leakage Current
ICC Quiescent Supply
Current
∆ICC Additional Worst Case
Supply Current
IOPD Output Leakage
Current
Test Conditions
V CC
( V)
4 .5
5.5
4 .5
5.5
4 .5
5.5
4.5
4.5
4.5
4.5
0 to 5.5
5.5
IO=-50 µA
IO=-8 mA
IO=50 µA
IO=8 mA
VI = 5.5V or GND
VI = VCC or GND
Value
TA = 25 oC
Min. Typ. Max.
2.0
2.0
0.6
0.6
0.4
1.4
0.4
1.5
4.4 4.5
3.94
0.0 0.1
0.36
±0.1
2
-40 to 85 oC
Min . Max.
2.0
2.0
0.6
0.6
0.4 1.4
0.4 1.5
4.4
3.8
0.1
0.44
±1.0
20
5.5
One Input at 3.4V,
other input at VCC or
GND
0
VOUT = 5.5V
1.35
1.5
0.5
5.0
Un it
V
V
V
V
V
µA
µA
mA
µA
AC ELECTRICAL CHARACTERISTICS (Input tr = tf =3 ns)
Symb ol
Parameter
tPLH Propagation Delay
tPHL Time
(*) Voltage range is 5V ± 0.5V
Test Condition
VCC (*) CL
( V)
(pF)
5.0
15
5.0
50
Value
TA = 25 oC
Min. Typ. Max.
4.0 7.0
5.5 8.0
-40 to 85 oC
Min . Max.
1.0 8.0
1.0 9.0
Unit
ns
CAPACITIVE CHARACTERISTICS
Symb ol
Parameter
Test Conditions
Value
Un it
TA = 25 oC
-40 to 85 oC
Min. Typ . Max. Min . Max.
CIN Input Capacitance
4
10
10
pF
CPD Power Dissipation
Capacitance (note 1)
12
pF
1) CPD isdefined as the value of the IC’sinternal equivalent capacitance which is calculated fromthe operating current consumption without load. (Referto
Test Circuit).Average operating current can be obtained by the following equation. ICC(opr) = CPD • VCC • fIN + ICC/6 (per Gate)
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