SN54AHCT157_08 Datasheet, PDF (1/17 Pages) Texas Instruments – QUADRUPLE 2-LINE TO 1-LINE DATA SELECTORS/MULTIPLEXERS

SN54AHCT157, SN74AHCT157
QUADRUPLE 2-LINE TO 1-LINE DATA SELECTORS/MULTIPLEXERS
D Inputs Are TTL-Voltage Compatible
D 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.
SCLS347K – MAY 1996 – REVISED JULY 2003
SN54AHCT157 . . . J OR W PACKAGE
SN74AHCT157 . . . D, DB, DGV, N, NS, OR PW 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
SN54AHCT157 . . . 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
NC – No internal connection
ORDERING INFORMATION
TA
PACKAGE†
ORDERABLE
PART NUMBER
TOP-SIDE
MARKING
PDIP – N
Tube
SN74AHCT157N
SN74AHCT157N
SOIC – D
Tube
Tape and reel
SN74AHCT157D
SN74AHCT157DR
AHCT157
–40°C to 85°C
SOP – NS
SSOP – DB
Tape and reel
Tape and reel
SN74AHCT157NSR
SN74AHCT157DBR
AHCT157
HB157
TSSOP – PW
Tube
Tape and reel
SN74AHCT157PW
SN74AHCT157PWR
HB157
TVSOP – DGV
Tape and reel SN74AHCT157DGVR HB157
–55°C to 125°C
CDIP – J
CFP – W
Tube
Tube
SNJ54AHCT157J
SNJ54AHCT157W
SNJ54AHCT157J
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.
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.
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.
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Copyright  2003, Texas Instruments Incorporated
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