74163 查看數據表（PDF） - Fairchild Semiconductor
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74163 Datasheet PDF : 11 Pages
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AC Operating Requirements for ACT
Symbol
Parameter
tS
Setup Time, HIGH or LOW
Pn to CP
tH
Hold Time, HIGH or LOW
Pn to CP
tS
Setup Time, HIGH or LOW
SR to CP
tH
Hold Time, HIGH or LOW
SR to CP
tS
Setup Time, HIGH or LOW
PE to CP
tH
Hold Time, HIGH or LOW
PE to CP
tS
Setup Time, HIGH or LOW
CEP or CET to CP
tH
Hold Time, HIGH or LOW
CEP or CET to CP
tW
Clock Pulse Width (Load)
HIGH or LOW
tW
Clock Pulse Width
(Count) HIGH or LOW
Note 10: Voltage Range 5.0 is 5.0V ± 0.5V
Capacitance
VCC
(V)
(Note 10)
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
TA = +25°C
CL = 50 pF
Typ
TA = −40°C to +85°C
CL = 50 pF
Guaranteed Minimum
4.0
10.0
12.0
−5.0
0.5
0.5
4.0
10.0
11.5
−5.5
−0.5
−0.5
4.0
8.5
10.5
−5.5
−0.5
0
2.5
5.5
6.5
−3.0
0
0.5
2.0
3.5
3.5
2.0
3.5
3.5
Symbol
CIN
CPD
Parameter
Input Capacitance
Power Dissipation Capacitance
Typ
Units
Conditions
4.5
45.0
pF
VCC = OPEN
pF
VCC = 5.0V
Units
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
7
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