dm74as258 Fairchild Semiconductor, dm74as258 Datasheet - Page 5

• Manufacturer Part Number: dm74as258
• Description: Dm74as257, Dm74as258 3-state Quad 1 Of 2 Line Data Selector/multiplexers
• Manufacturer: Fairchild Semiconductor

©1986 Fairchild Semiconductor Corporation
DM74AS257, DM74AS258 Rev. 1.2
DM74AS257 Switching Characteristics
Over recommended operating free air temperature range.
DM74AS258 Switching Characteristics
Over recommended operating free air temperature range.
Symbol
Symbol
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
PZH
PHZ
PLH
PHL
PLH
PHL
PZL
PLZ
PLH
PHL
PLH
PHL
PZH
PHZ
PZL
PLZ
Propagation Delay Time,
LOW-to-HIGH Level Output
Propagation Delay Time,
HIGH-to-LOW Level Output
Propagation Delay Time,
LOW-to-HIGH Level Output
Propagation Delay Time,
HIGH-to-LOW Level Output
Output Enable Time to HIGH
Level
Output Enable Time to LOW
Level
Output Disable Time from HIGH
Level
Output Disable Time from LOW
Level
Propagation Delay Time,
LOW-to-HIGH Level Output
Propagation Delay Time,
HIGH-to-LOW Level Output
Propagation Delay Time,
LOW-to-HIGH Level Output
Propagation Delay Time,
HIGH-to-LOW Level Output
Output Enable Time to HIGH
Level
Output Enable Time to LOW
Level
Output Disable Time, from HIGH
Level
Output Disable Time from LOW
Level
Parameter
Parameter
V
C
R
V
C
R
CC
L
L
CC
L
L
Conditions
Conditions
50 pF,
500
50pF,
500
4.5V to 5.5V,
4.5V to 5.5V,
5
OUTPUT
OUTPUT
OUTPUT
OUTPUT
Control
Control
Control
Control
From
Select
Select
From
Data
Data
Any Y
Any Y
Any Y
Any Y
Any Y
Any Y
Any Y
Any Y
To
To
Min.
Min
1.5
1.5
1
1
2
2
2
2
2
1
1
2
2
2
2
2
Max.
Max
9.5
6.5
10
10
5.5
7.5
9.5
6.5
11
10
5
4
8
6
6
7
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Units
Units
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns