SL74LS157
Quad 2-Input Data Selector/Multiplexer
This monolitic data selector/multiplexer contains inverters and
drivers to supply full on-chip data selection to the four output gates. A
separate strobe input is provided. A 4-bit word is selected from one of
two sources and is routed to the four outputs. The LS157 has the same
functions and pin connections as the LS257 but the latter is provided
with 3-state outputs.
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·
Buffered Inputs and Outputs
Common Strobe/Select input for all 4 circuits
ORDERING INFORMATION
SL74LS157N Plastic
SL74LS157D SOIC
TA =0° to 70° C for all
packages
PIN ASSIGNMENT
LOGIC DIAGRAM
FUNCTION TABLE
Inputs
Output
Outputs
Y0-Y3
Select
PIN 16 =VCC
PIN 8 = GND
Enable
H
X
L
L
L
L
A0-A3
B0-B3
H
X=don’t care
A0-A3,B0-B3=the levels of the respective
Data-Word Inputs
System Logic
Semiconductor
SLS
SLS [ SYSTEM LOGIC SEMICONDUCTOR ]
