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DM54LS165 Datasheet(PDF) 3 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor.
Part No. DM54LS165
Description  8-Bit Parallel In/Serial Output Shift Registers
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Maker  NSC [National Semiconductor (TI)]
Homepage  http://www.national.com
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DM54LS165 Datasheet(HTML) 3 Page - National Semiconductor (TI)

   
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Switching Characteristics at VCC e 5V and TA e 25 C
DM54LS
DM74LS
DM74LS
Symbol
Parameter
From (Input)
CL e 15 pF
CL e 15 pF
RL e 2kX
Units
To (Output)
CL e 50 pF
Min
Max
Min
Max
Min
Max
fMAX
Maximum Clock Frequency
25
25
20
MHz
tPLH
Propagation Delay Time
Load to
30
35
37
ns
Low to High Level Output
Any Q
tPHL
Propagation Delay Time
Load to
30
35
42
ns
High to Low Level Output
Any Q
tPLH
Propagation Delay Time
Clock to
30
40
42
ns
Low to High Level Output
Any Q
tPHL
Propagation Delay Time
Clock to
30
40
47
ns
High to Low Level Output
Any Q
tPLH
Propagation Delay Time
H
20
25
27
ns
Low to High Level Output
to QH
tPHL
Propagation Delay Time
H
30
30
37
ns
High to Low Level Output
to QH
tPLH
Propagation Delay Time
H
30
30
32
ns
Low to High Level Output
to QH
tPHL
Propagation Delay Time
H
25
25
32
ns
High to Low Level Output
to QH
Timing Diagram
Typical Shift Load and Inhibit Sequences
TLF6399 – 3
3


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