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74VHC20 数据表(PDF) 3 Page - STMicroelectronics

部件名 74VHC20
功能描述  DUAL 4-INPUT NAND GATE
PDF  7 Pages
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制造商  STMICROELECTRONICS [STMicroelectronics]
网页  http://www.st.com
标志 STMICROELECTRONICS - STMicroelectronics

74VHC20 数据表(HTML) 3 Page - STMicroelectronics

  74VHC20 Datasheet HTML 1Page - STMicroelectronics 74VHC20 Datasheet HTML 2Page - STMicroelectronics 74VHC20 Datasheet HTML 3Page - STMicroelectronics 74VHC20 Datasheet HTML 4Page - STMicroelectronics 74VHC20 Datasheet HTML 5Page - STMicroelectronics 74VHC20 Datasheet HTML 6Page - STMicroelectronics 74VHC20 Datasheet HTML 7Page - STMicroelectronics  
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DC SPECIFICATIONS
Symb ol
Parameter
T est Cond ition s
Val ue
Un it
VCC
(V)
TA =25
oC
-40 to 85
oC
Min.
Typ .
Max.
Min .
Max.
VIH
High Level Input
Voltage
2.0
1.5
1.5
V
3.0 to 5.5
0.7VCC
0.7VCC
VIL
Low Level Input
Voltage
2.0
0.5
0.5
V
3.0 to 5.5
0.3VCC
0.3VCC
VOH
High Level Output
Voltage
2.0
IO=-50
µA
1.9
2.0
1.9
V
3.0
IO=-50
µA
2.9
3.0
2.9
4.5
IO=-50
µA
4.4
4.5
4.4
3.0
IO=-4 mA
2.58
2.48
4.5
IO=-8 mA
3.94
3.8
VOL
Low Level Output
Voltage
2.0
IO=50
µA
0.0
0.1
0.1
V
3.0
IO=50
µA
0.0
0.1
0.1
4.5
IO=50
µA
0.0
0.1
0.1
3.0
IO=4 mA
0.36
0.44
4.5
IO=8 mA
0.36
0.44
II
Input Leakage Current
0 to 5.5
VI = 5.5V or GND
±0.1
±1.0
µA
ICC
Quiescent Supply
Current
5.5
VI =VCC or GND
2
20
µA
CAPACITIVE CHARACTERISTICS
Symb ol
Parameter
T est Cond ition s
Val ue
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)
19
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/4 (per Gate)
AC ELECTRICAL CHARACTERISTICS (Input tr =tf =3 ns)
Symb ol
Parameter
Test Co nditi on
Val ue
Un it
VCC
(V)
CL
(pF )
TA =25
oC
-40 to 85
oC
Min.
Typ .
Max.
Min .
Max.
tPLH
tPHL
Propagation Delay
Time
3.3
(*)
15
4.6
6.6
1.0
8.0
ns
3.3
(*)
50
7.1
10.1
1.0
11.5
5.0
(**)
15
3.3
5.0
1.0
6.0
5.0
(**)
50
4.8
7.0
1.0
8.0
(*) Voltage range is 3.3V
± 0.3V
(**) Voltage range is 5V
± 0.5V
74VHC20
3/7



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