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54LS253 Datasheet(PDF) 3 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor.
Part No. 54LS253
Description  TRI-STATE Data Selectors/Multiplexers
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Maker  NSC [National Semiconductor (TI)]
Homepage  http://www.national.com
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54LS253 Datasheet(HTML) 3 Page - National Semiconductor (TI)

   
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Switching Characteristics at VCC e 5V and TA e 25 C (See Section 1 for Test Waveforms and Output Load)
From (Input)
RL e 667X
Symbol
Parameter
To (Output)
CL e 45 pF
CL e 150 pF
Units
Min
Max
Min
Max
tPLH
Propagation Delay Time
Data
25
35
ns
Low to High Level Output
to Y
tPHL
Propagation Delay Time
Data
20
30
ns
High to Low Level Output
to Y
tPLH
Propagation Delay Time
Select
45
54
ns
Low to High Level Output
to Y
tPHL
Propagation Delay Time
Select
32
44
ns
High to Low Level Output
to Y
tPZH
Output Enable Time
Output
18
32
ns
to High Level Output
Control to Y
tPZL
Output Enable Time
Output
23
35
ns
to Low Level Output
Control to Y
tPHZ
Output Disable Time
Output
41
ns
from High Level Output (Note 1)
Control to Y
tPLZ
Output Disable Time
Output
27
ns
from Low Level Output (Note 1)
Control to Y
Note 1
CL e 5 pF
Logic Diagram
TLF6416 – 2
3


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