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SN74AHCT157NSRE4 参数 Datasheet PDF下载

SN74AHCT157NSRE4图片预览
型号: SN74AHCT157NSRE4
PDF下载: 下载PDF文件 查看货源
内容描述: 四路2号线到1线数据选择器/多路复用器 [QUADRUPLE 2-LINE TO 1-LINE DATA SELECTORS/MULTIPLEXERS]
分类和应用: 解复用器逻辑集成电路光电二极管
文件页数/大小: 17 页 / 591 K
品牌: TI [ TEXAS INSTRUMENTS ]
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SN54AHCT157, SN74AHCT157
QUADRUPLE 2-LINE TO 1-LINE DATA SELECTORS/MULTIPLEXERS
SCLS347K – MAY 1996 – REVISED JULY 2003
D
D
Inputs Are TTL-Voltage Compatible
Latch-Up Performance Exceeds 250 mA Per
JESD 17
SN54AHCT157 . . . J OR W PACKAGE
SN74AHCT157 . . . D, DB, DGV, N, NS, OR PW PACKAGE
(TOP VIEW)
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.
A /B
1A
1B
1Y
2A
2B
2Y
GND
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
V
CC
G
4A
4B
4Y
3A
3B
3Y
SN54AHCT157 . . . FK PACKAGE
(TOP VIEW)
1A
A/B
NC
V
CC
G
1B
1Y
NC
2A
2B
3
4
5
6
7
8
2 1 20 19
18
17
16
15
14
9 10 11 12 13
4A
4B
NC
4Y
3A
NC – No internal connection
ORDERING INFORMATION
TA
PDIP – N
SOIC – D
SOP – NS
SSOP – DB
TSSOP – PW
TVSOP – DGV
CDIP – J
–55°C to 125°C
CFP – W
LCCC – FK
PACKAGE†
Tube
Tube
Tape and reel
–40°C to 85°C
Tape and reel
Tape and reel
Tube
Tape and reel
Tape and reel
Tube
Tube
Tube
ORDERABLE
PART NUMBER
SN74AHCT157N
SN74AHCT157D
SN74AHCT157DR
SN74AHCT157NSR
SN74AHCT157DBR
SN74AHCT157PW
SN74AHCT157PWR
SN74AHCT157DGVR
SNJ54AHCT157J
SNJ54AHCT157W
SNJ54AHCT157K
AHCT157
HB157
HB157
HB157
SNJ54AHCT157J
SNJ54AHCT157W
SNJ54AHCT157FK
TOP-SIDE
MARKING
SN74AHCT157N
AHCT157
† 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.
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.
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
2Y
GND
NC
3Y
3B
1