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DM5490 Datasheet(PDF) 5 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor.
Part No. DM5490
Description  Decade and Binary Counters
Download  10 Pages
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Maker  NSC [National Semiconductor (TI)]
Homepage  http://www.national.com
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 5 page
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’93A Switching Characteristics
at VCC e 5V and TA e 25 C (See Section 1 for Test Waveforms and Output Load)
From (Input)
RL e 400X
Symbol
Parameter
To (Output)
CL e 15 pF
Units
Min
Max
fMAX
Maximum Clock
A to QA
32
MHz
Frequency
BtoQB
16
tPLH
Propagation Delay Time
A to
16
ns
Low to High Level Output
QA
tPHL
Propagation Delay Time
A to
18
ns
High to Low Level Output
QA
tPLH
Propagation Delay Time
A to
70
ns
Low to High Level Output
QD
tPHL
Propagation Delay Time
A to
70
ns
High to Low Level Output
QD
tPLH
Propagation Delay Time
B to
16
ns
Low to High Level Output
QB
tPHL
Propagation Delay Time
B to
21
ns
High to Low Level Output
QB
tPLH
Propagation Delay Time
B to
32
ns
Low to High Level Output
QC
tPHL
Propagation Delay Time
B to
35
ns
High to Low Level Output
QC
tPLH
Propagation Delay Time
B to
51
ns
Low to High Level Output
QD
tPHL
Propagation Delay Time
B to
51
ns
High to Low Level Output
QD
tPHL
Propagation Delay Time
SET-0
High to Low Level Output
to
40
ns
Any Q
5




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