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Part Name
Description
DM74LS253N View Datasheet(PDF) - Fairchild Semiconductor
Part Name
Description
Manufacturer
DM74LS253N
3-STATE Data Selector/Multiplexer
Fairchild Semiconductor
DM74LS253N Datasheet PDF : 6 Pages
1
2
3
4
5
6
Switching Characteristics
at V
CC
=
5V and T
A
=
25
°
C
Symbol
Parameter
t
PLH
Propagation Delay Time
LOW-to-HIGH Level Output
t
PHL
Propagation Delay Time
HIGH-to-LOW Level Output
t
PLH
Propagation Delay Time
LOW-to-HIGH Level Output
t
PHL
Propagation Delay Time
HIGH-to-LOW Level Output
t
PZH
Output Enable Time to
HIGH Level Output
t
PZL
Output Enable Time to
LOW Level Output
t
PHZ
Output Disable Time from
HIGH Level Output (Note 6)
t
PLZ
Output Disable Time from
LOW Level Output (Note 6)
Note 6:
C
L
=
5 pF.
From (Input)
To (Output)
Data to Y
Data to Y
Select to Y
Select to Y
Output
Control to Y
Output
Control to Y
Output
Control to Y
Output
Control to Y
R
L
=
667
Ω
C
L
=
45 pF
C
L
=
150 pF
Min
Max
Min
Max
25
35
20
30
45
54
32
44
18
32
23
35
41
27
Units
ns
ns
ns
ns
ns
ns
ns
ns
www.fairchildsemi.com
4
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