MM74HC374 查看數據表（PDF） - Fairchild Semiconductor
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MM74HC374 Datasheet PDF : 8 Pages
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AC Electrical Characteristics
VCC 5V, TA 25qC, tr tf 6 ns
Symbol
Parameter
Conditions
fMAX
tPHL, tPLH
tPZH, tPZL
tPHZ, tPLZ
tS
tH
tW
Maximum Operating
Frequency
Maximum Propagation
Delay Clock to Q
Maximum Output Enable
Time
Maximum Output Disable
Time
Minimum Setup Time
Minimum Hold Time
Minimum Pulse Width
CL 45 pF
RL k:
CL 45 pF
RL k:
CL 5 pF
Guaranteed
Typ
Units
Limit
50
35
MHz
20
32
ns
19
28
ns
17
25
ns
20
ns
5
ns
9
16
ns
3
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