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DM5490 Datasheet(PDF) 3 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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DM5490 Datasheet(HTML) 3 Page - National Semiconductor (TI)

 
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’90A 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
AtoQA
16
ns
Low to High Level Output
tPHL
Propagation Delay Time
AtoQA
18
ns
High to Low Level Output
tPLH
Propagation Delay Time
AtoQD
48
ns
Low to High Level Output
tPHL
Propagation Delay Time
AtoQD
50
ns
High to Low Level Output
tPLH
Propagation Delay Time
BtoQB
16
ns
Low to High Level Output
tPHL
Propagation Delay Time
BtoQB
21
ns
High to Low Level Output
tPLH
Propagation Delay Time
BtoQC
32
ns
Low to High Level Output
tPHL
Propagation Delay Time
BtoQC
35
ns
High to Low Level Output
tPLH
Propagation Delay Time
BtoQD
32
ns
Low to High Level Output
tPHL
Propagation Delay Time
BtoQD
35
ns
High to Low Level Output
tPLH
Propagation Delay Time
SET-9 to
30
ns
Low to High Level Output
QA QD
tPHL
Propagation Delay Time
SET-9 to
40
ns
High to Low Level Output
QB QC
tPHL
Propagation Delay Time
SET-0
40
ns
High to Low Level Output
Any Q
3


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