KK74LS157 Datasheet, PDF (1/4 Pages) KODENSHI KOREA CORP. – Quad 2-Input Data Selector/Multiplexer

TECHNICAL DATA
Quad 2-Input Data Selector/Multiplexer
KK74LS157
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.
• Buffered Inputs and Outputs
• Common Strobe/Select input for all 4 circuits
ORDERING INFORMATION
KK74LS157N Plastic
KK74LS157D SOIC
T_A =0° to 70° C for all packages
LOGIC DIAGRAM
PIN ASSIGNMENT
PIN 16 =V_CC
PIN 8 = GND
FUNCTION TABLE
Inputs
Outputs
Output
Enable
Select Y0-Y3
H
X
L
L
L
A0-A3
L
H
B0-B3
X=don’t care
A0-A3,B0-B3=the levels of the respective
Data-Word Inputs
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