Datasheet

SN54AHCT157, SN74AHCT157
QUADRUPLE 2-LINE TO 1-LINE DATA SELECTORS/MULTIPLEXERS
SCLS347K – MAY 1996 – REVISED JULY 2003
1
POST OFFICE BOX 655303 DALLAS, TEXAS 75265
Inputs Are TTL-Voltage Compatible
Latch-Up Performance Exceeds 250 mA Per
JESD 17
description/ordering information
These quadruple 2-line to 1-line data
selectors/multiplexers are designed for 4.5-V to
5.5-V V
CC
operation.
The ’AHCT157 devices feature 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 devices provide true data.
ORDERING INFORMATION
T
A
PACKAGE
ORDERABLE
PART NUMBER
TOP-SIDE
MARKING
PDIP – N Tube SN74AHCT157N SN74AHCT157N
SOIC – D
Tube SN74AHCT157D
AHCT157
SOIC
D
Tape and reel SN74AHCT157DR
AHCT157
–40
°
Cto85
°
C
SOP – NS Tape and reel SN74AHCT157NSR AHCT157
40°C
to
85°C
SSOP – DB Tape and reel SN74AHCT157DBR HB157
TSSOP PW
Tube SN74AHCT157PW
HB157
TSSOP
PW
Tape and reel SN74AHCT157PWR
HB157
TVSOP – DGV Tape and reel SN74AHCT157DGVR HB157
CDIP – J Tube SNJ54AHCT157J SNJ54AHCT157J
–55°C to 125°C
CFP – W Tube SNJ54AHCT157W SNJ54AHCT157W
LCCC – FK Tube SNJ54AHCT157K SNJ54AHCT157FK
Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines are
available at www.ti.com/sc/package.
Copyright 2003, Texas Instruments Incorporated
UNLESS OTHERWISE NOTED this document contains PRODUCTION
DATA information 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.
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
SN54AHCT157 ...J OR W PACKAGE
SN74AHCT157 . . . D, DB, DGV, N, NS, OR PW PACKAGE
(TOP VIEW)
3212019
910111213
4
5
6
7
8
18
17
16
15
14
4A
4B
NC
4Y
3A
1B
1Y
NC
2A
2B
SN54AHCT157 . . . FK PACKAGE
(TOP VIEW)
1A
A/B
NC
3Y
3B
V
G
2Y
GND
NC
CC
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
A/B
1A
1B
1Y
2A
2B
2Y
GND
V
CC
G
4A
4B
4Y
3A
3B
3Y
NC – No internal connection

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