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SN74ALS157AN

Description
ALS SERIES, QUAD 2 LINE TO 1 LINE MULTIPLEXER, TRUE OUTPUT, PDSO16
Categorysemiconductor    logic   
File Size707KB,20 Pages
ManufacturerTACHYONICS
Websitehttp://www.tachyonics.co.kr/
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SN74ALS157AN Overview

ALS SERIES, QUAD 2 LINE TO 1 LINE MULTIPLEXER, TRUE OUTPUT, PDSO16

SN74ALS157AN Parametric

Parameter NameAttribute value
Number of functions4
Number of terminals16
Minimum operating temperature0.0 Cel
Maximum operating temperature70 Cel
Rated supply voltage5
Minimum supply/operating voltage4.5 V
Maximum supply/operating voltage5.5 V
Processing package descriptionGREEN,PLASTIC, SO-16
each_compliYes
EU RoHS regulationsYes
China RoHS regulationsYes
stateActive
Logic IC typeMULTIPLEXER
sub_categoryMultiplexer/Demultiplexer
seriesALS
jesd_30_codeR-PDSO-G16
jesd_609_codee4
load_capacitance__cl_50 pF
Load preset inputYES
max_i_ol_0.0080 Amp
moisture_sensitivity_level1
Number of inputs2
Number of outputs1
Output polarityTRUE
Packaging MaterialsPLASTIC/EPOXY
ckage_codeSOP
ckage_equivalence_codeSOP16,.25
packaging shapeRECTANGULAR
Package SizeSMALL OUTLINE
cking_methodTAPE AND REEL
eak_reflow_temperature__cel_260
wer_supplies__v_5
wer_supply_current_max__icc_11 mA
._delay_nom_su14 ns
propagation delay TPD17 ns
qualification_statusCOMMERCIAL
seated_height_max1.75 mm
surface mountYES
CraftsmanshipTTL
Temperature levelCOMMERCIAL
terminal coatingNICKEL PALLADIUM GOLD
Terminal formGULL WING
Terminal spacing1.27 mm
Terminal locationDUAL
ime_peak_reflow_temperature_max__s_NOT SPECIFIED
length9.9 mm
width3.9 mm
SN54ALS157A, SN54ALS158
SN74ALS157A, SN74ALS158, SN74AS157, SN74AS158
QUADRUPLE 1 OF 2 DATA SELECTORS/MULTIPLEXERS
Buffered Inputs and Outputs
Package Options Include Plastic
Small-Outline (D) Packages, Ceramic Chip
Carriers (FK), and Standard Plastic (N) and
Ceramic (J) 300-mil DIPs
SN54ALS157A, SN54ALS158 . . . J PACKAGE
SN74ALS157A, SN74ALS158,
SN74AS157, SN74AS158
. . .
D OR N PACKAGE
(TOP VIEW)
SDAS081C − APRIL 1982 − REVISED DECEMBER 1994
description
These data selectors/multiplexers contain
inverters and drivers to supply full data selection
to the four output gates. A separate strobe (G)
input is provided. A 4-bit word is selected from one
of two sources and is routed to the four outputs.
The
′ALS157A
and SN74AS157 present true
data. The
′ALS158
and SN74AS158 present
inverted data to minimize propagation delay time.
The SN54ALS157A and SN54ALS158 are
characterized for operation over the full military
temperature range of − 55°C to 125°C. The
SN74ALS157A, SN74ALS158, SN74AS157, and
SN74AS158 are characterized for operation from
0°C to 70°C.
A /B
1A
1B
1Y
2A
2B
2Y
GND
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
V
CC
G
4A
4B
4Y
3A
3B
3Y
SN54ALS157A, SN54ALS158 . . . FK PACKAGE
(TOP VIEW)
1A
A/B
NC
V
CC
3
4
5
6
7
8
1B
1Y
NC
2A
2B
2 1 20 19
18
17
16
15
G
4A
4B
NC
4Y
3A
14
9 10 11 12 13
NC − No internal connection
FUNCTION TABLE
INPUTS
DATA
G
H
L
L
L
L
A /B
X
L
L
H
H
A
X
L
H
X
X
B
X
X
X
L
H
OUTPUT Y
′ALS157A
ALS157A
SN74AS157
L
L
H
L
H
′ALS158
ALS158
SN74AS158
H
H
L
H
L
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
1994, Texas Instruments Incorporated
POST OFFICE BOX 655303
POST OFFICE BOX 1443
HOUSTON, TEXAS 77251−1443
DALLAS, TEXAS 75265
2Y
GND
NC
3Y
3B
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