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DM74ALS251N

P1-P3P4-P6P7-P7
www.fairchildsemi.com 4
DM74ALS251
Switching Characteristics
over recommended operating free air temperature range
Symbol Parameter Conditions From To Min Max Units
t
PLH
Propagation Delay Time V
CC
= 4.5V to 5.5V
Select 5 18 ns
LOW-to-HIGH Level Output C
L
= 50 pF
Y
t
PHL
Propagation Delay Time R
L
= 500Ω
Select 8 24 ns
HIGH-to-LOW Level Output
t
PLH
Propagation Delay Time
Select 8 24 ns
LOW-to-HIGH Level Output
W
t
PHL
Propagation Delay Time
Select 7 23 ns
HIGH-to-LOW Level Output
t
PLH
Propagation Delay Time
Data 2 10 ns
LOW-to-HIGH Level Output
Y
t
PHL
Propagation Delay Time
Data 3 15 ns
HIGH-to-LOW Level Output
t
PLH
Propagation Delay Time
Data 3 15 ns
LOW-to-HIGH Level Output
W
t
PHL
Propagation Delay Time
Data 3 15 ns
HIGH-to-LOW Level Output
t
PZH
Output Enable Time
Output Control 3 15 ns
to HIGH Level
Y
t
PZL
Output Enable Time
Output Control 3 15 ns
to LOW Level
t
PZH
Output Enable Time
Output Control 3 15 ns
to HIGH Level
W
t
PZL
Output Enable Time
Output Control 3 15 ns
to LOW Level
t
PHZ
Output Disable Time
Output Control 2 10 ns
from HIGH Level
Y
t
PLZ
Output Disable Time
Output Control 1 10 ns
from LOW Level
t
PHZ
Output Disable Time
Output Control 2 10 ns
from HIGH Level
W
t
PLZ
Output Disable Time
Output Control 1 10 ns
from LOW Level
5 www.fairchildsemi.com
DM74ALS251
Physical Dimensions inches (millimeters) unless otherwise noted
16-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-012, 0.150 Narrow
Package Number M16A
www.fairchildsemi.com 6
DM74ALS251
Physical Dimensions inches (millimeters) unless otherwise noted (Continued)
16-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide
Package Number M16D
P1-P3P4-P6P7-P7

DM74ALS251N

Mfr. #:
Buy DM74ALS251N
Manufacturer:
ON Semiconductor / Fairchild
Description:
Encoders, Decoders, Multiplexers & Demultiplexers 3-STATE Data Sel/Mul
Lifecycle:
New from this manufacturer.
Delivery:
DHL FedEx Ups TNT EMS
Payment:
T/T Paypal Visa MoneyGram Western Union

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