7490 Просмотр технического описания (PDF) - Fairchild Semiconductor
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7490 Datasheet PDF : 5 Pages
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AC Switching Characteristics at VCC = 5V and TA = 25°C
Symbol
Parameter
From (Input)
To (Output)
fMAX
tPLH
tPHL
tPLH
tPHL
tPLH
tPHL
tPLH
tPHL
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
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
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
A to QA
B to QB
A to QA
A to QA
A to QD
A to QD
B to QB
B to QB
B to QC
B to QC
B to QD
B to QD
SET-9 to
QA, QD
SET-9 to
QB, QC
SET-0
Any Q
RL = 400Ω
CL = 15 pF
Min
Max
32
16
16
18
48
50
16
21
32
35
32
35
30
40
40
Units
MHz
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
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