Data Selectors/Multiplexer. SN54F157A Datasheet

SN54F157A Selectors/Multiplexer. Datasheet pdf. Equivalent


Part SN54F157A
Description Quadruple 2-Line To 1-Line Data Selectors/Multiplexer
Feature SN54F157A, SN74F157A QUADRUPLE 2ĆLINE TO 1ĆLINE DATA SELECTORS/MULTIPLEXERS ą SDFS053A − MARCH 1987 .
Manufacture etcTI
Datasheet
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SN54F157A, SN74F157A QUADRUPLE 2ĆLINE TO 1ĆLINE DATA SELECTO SN54F157A Datasheet
Recommendation Recommendation Datasheet SN54F157A Datasheet




SN54F157A
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 VCC
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
POST OFFICE BOX 655303 DALLAS, TEXAS 75265
POST OFFICE BOX 1443 HOUSTON, TEXAS 77251−1443
2−1



SN54F157A
SN54F157A, SN74F157A
QUADRUPLE 2ĆLINE TO 1ĆLINE DATA SELECTORS/MULTIPLEXERS
ą
SDFS053A − MARCH 1987 − REVISED OCTOBER 1993
logic symbol
logic diagram (positive logic)
15
G
1
A /B
2
1A
3
1B
5
2A
6
2B
11
3A
10
3B
14
4A
13
4B
EN
G1
1 MUX
1
4
1Y
7
2Y
9
3Y
12
4Y
This symbol is in accordance with ANSI/IEEE Std 91-1984 and
IEC Publication 617-12.
Pin numbers shown are for the D, J, and N packages.
2
1A
3
1B
5
2A
6
2B
11
3A
10
3B
14
4A
13
4B
15
G
1
A /B
4
1Y
7
2Y
9
3Y
12
4Y
absolute maximum ratings over operating free-air temperature range (unless otherwise noted)
Supply voltage range, VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −0.5 V to 7 V
Input voltage range (see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −1.2 V to 7 V
Input current range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −30 mA to 5 mA
Voltage range applied to any output in the high state . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −0.5 V to VCC
Current into any output in the low state . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40 mA
Operating free-air temperature range: SN54F157A . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −55°C to 125°C
SN74F157A . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0°C to 70°C
Storage temperature range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −65°C to 150°C
Stresses beyond those listed under “absolute maximum ratings” may cause permanent damage to the device. These are stress ratings only and
functional operation of the device at these or any other conditions beyond those indicated under “recommended operating conditions” is not
implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
NOTE 1: The input voltage rating may be exceeded provided that the input current rating is observed.
recommended operating conditions
VCC
VIH
VIL
IIK
IOH
IOL
TA
Supply voltage
High-level input voltage
Low-level input voltage
Input clamp current
High-level output current
Low-level output current
Operating free-air temperature
SN54F157A
MIN NOM MAX
4.5
5 5.5
2
0.8
− 18
−1
20
− 55
125
SN74F157A
MIN NOM MAX
4.5
5 5.5
2
0.8
− 18
−1
20
0
70
UNIT
V
V
V
mA
mA
mA
°C
2−2
POST OFFICE BOX 655303 DALLAS, TEXAS 75265
POST OFFICE BOX 1443 HOUSTON, TEXAS 77251−1443







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