74LS393 查看數據表（PDF） - Fairchild Semiconductor
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74LS393 Datasheet PDF : 6 Pages
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Switching Characteristics
at VCC = 5V and TA = 25°C
Symbol
Parameter
fMAX
tPLH
tPHL
tPLH
tPHL
tPHL
Maximum Clock Frequency
Propagation Delay Time
LOW-to-HIGH Level Output
Propagation Delay Time
HIGH-to-LOW Level Output
Propagation Delay Time
LOW-to-HIGH Level Output
Propagation Delay Time
HIGH-to-LOW Level Output
Propagation Delay Time
HIGH-to-LOW Level Output
From (Input)
To (Output)
A to QA
A to QA
A to QA
A to QD
A to QD
Clear to Any Q
RL = 2 kΩ
CL = 15 pF
CL = 50 pF
Min
Max
Min
Max
25
20
20
24
20
30
60
87
60
87
39
45
Units
MHz
ns
ns
ns
ns
ns
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