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 VCC 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 VCC 15 G 14 4A 13 4B 12 4Y 11 3A 10 3B 9 3Y
SN54AHCT157 . . . FK PACKAGE (TOP VIEW)
VCC
G
NC
A/B
1A
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
3B
3Y
NC
GND
2Y
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 cu...
SN54AHCT157 PDF File
