
SN54AHC157, SN74AHC157
QUADRUPLE 2-LINE TO 1-LINE DATA SELECTORS/MULTIPLEXERS
SCLS345I – MAY 1996 – REVISED JULY 2003
1
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
Operating Range 2-V to 5.5-V V
CC
Latch-Up Performance Exceeds 250 mA Per
JESD 17
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)
3
2 1 20 19
9 10 11 12 13
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)
1
A
N
3
3
V
G
2
G
N
C
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)
1
16
8
9
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
3
V
G
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
TA
PACKAGE
ORDERABLE
PART NUMBER
TOP-SIDE
MARKING
QFN – RGY
PDIP – N
Tape and reel
Tube
SN74AHC157RGYR
SN74AHC157N
HA157
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
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.
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.