dm74als257 Fairchild Semiconductor, dm74als257 Datasheet - Page 2

• Manufacturer Part Number: dm74als257
• Description: Dm74als257, Dm74als258 3-state Quad 1-of-2-line Data Selector/multiplexer
• Manufacturer: Fairchild Semiconductor

©1984 Fairchild Semiconductor Corporation
DM74ALS257, DM74ALS258 Rev. 1.2
Connection Diagram
Function Table
H
L
X
Z
Output Control
LOW Level
High Impedance (OFF)
Don't Care
HIGH Level
H
L
L
L
L
Inputs
Select
X
H
H
L
L
A
X
H
X
X
L
B
X
X
X
H
L
DM74ALS257
2
H
H
Z
L
L
Output Y
DM74ALS258
H
H
Z
L
L
www.fairchildsemi.com