SN74F157ADR Datasheet, PDF (1/5 Pages) Texas Instruments – QUAADRUPLE 2-LINE TO 1-LINE DATA SELECTORS/MULTIPLEXERS

SN54F157A, SN74F157A
QUADRUPLE 2ĆLINE TO 1ĆLINE DATA SELECTORS/MULTIPLEXERS
ą
SDFS053A − MARCH 1987 − REVISED OCTOBER 1993
• Buffered Inputs and Outputs
• Package Options Include Plastic
Small-Outline Packages, Ceramic Chip
Carriers, and Standard Plastic and Ceramic
300-mil DIPs
description
The ′F157A is a quadruple 2-input data
selector/multiplexer featuring a common strobe
(G) input. When the strobe is high, all outputs are
low. When the strobe is low, a 4-bit word is
selected from one of two sources and is routed to
the four outputs. The ′F157A provides true data.
The SN54F157A is characterized for operation
over the full military temperature range of − 55°C
to 125°C. The SN74F157A is characterized for
operation from 0°C to 70°C.
FUNCTION TABLE
INPUTS
G A /B A
OUTPUT
B
Y
H
X
X
X
L
L
L
L
X
L
SN54F157A . . . J PACKAGE
SN74F157A . . . D OR N PACKAGE
(TOP VIEW)
A /B 1
1A 2
1B 3
1Y 4
2A 5
2B 6
2Y 7
GND 8
16 V_CC
15 G
14 4A
13 4B
12 4Y
11 3A
10 3B
9 3Y
SN54F157A . . . FK PACKAGE
(TOP VIEW)
1B
3 2 1 20 19
4
18
4A
1Y ₅
17 ^4B
NC 6
16 NC
2A 7
15 4Y
2B 8
14 3A
9 10 11 12 13
L
L
H
X
H
L
H
X
L
L
L
H
X
H
H
NC − No internal connection
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of Texas Instruments
standard warranty. Production processing does not necessarily include
testing of all parameters.
Copyright  1993, Texas Instruments Incorporated
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