SN54AHC157, SN74AHC157
QUADRUPLE 2-LINE TO 1-LINE DATA SELECTORS/MULTIPLEXERS


SCLS345I – MAY 1996 – REVISED JULY 2003
1POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
C0068 Operating Range 2-V to 5.5-V V
CC
C0068 Latch-Up Performance Exceeds 250 mA Per
JESD 17
C0068 ESD Protection Exceeds JESD 22
– 2000-V Human-Body Model (A114-A)
– 200-V Machine Model (A115-A)
– 1000-V Charged-Device Model (C101)
SN54AHC157 ...J OR W PACKAGE
SN74AHC157 . . . 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
SN54AHC157 . . . 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
SN74AHC157 . . . RGY PACKAGE
(TOP VIEW)
116
89
2
3
4
5
6
7
15
14
13
12
11
10
G
4A
4B
4Y
3A
3B
1A
1B
1Y
2A
2B
2Y
A/B
3Y
V
GND
CC
description/ordering information
These quadruple 2-line to 1-line data selectors/multiplexers are designed for 2-V to 5.5-V V
CC
operation.
The ’AHC157 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
QFN – RGY Tape and reel SN74AHC157RGYR HA157
PDIP – N Tube SN74AHC157N SN74AHC157N
SOIC – D
Tube SN74AHC157D
AHC157 –
Tape and reel SN74AHC157DR
–40°C to 85°C
SOP – NS Tape and reel SN74AHC157NSR AHC157
SSOP – DB Tape and reel SN74AHC157DBR HA157
TSSOP PW
Tube SN74AHC157PW
HA157 –
Tape and reel SN74AHC157PWR
TVSOP – DGV Tape and reel SN74AHC157DGVR HA157
CDIP – J Tube SNJ54AHC157J SNJ54AHC157J
–55°C to 125°C CFP – W Tube SNJ54AHC157W SNJ54AHC157W
LCCC – FK Tube SNJ54AHC157FK SNJ54AHC157FK
†
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
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.
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.
On products compliant to MIL-PRF-38535, all parameters are tested
unless otherwise noted. On all other products, production
processing does not necessarily include testing of all parameters.