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74ACT11257

更新时间： 2024-11-17 23:00:15
品牌 Logo 应用领域
德州仪器 - TI 复用器输出元件
页数 文件大小 规格书
6页 101K
描述
QUADRUPLE 2-LINE TO 1-LINE DATA SELECTOR/MULTIPLEXER WITH 3-STATE OUTPUTS

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74ACT11257 数据手册

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74ACT11257  
QUADRUPLE 2-LINE TO 1-LINE DATA SELECTOR/MULTIPLEXER  
WITH 3-STATE OUTPUTS  
SCAS053B – JANUARY 1989 – REVISED APRIL 1996  
DB, DW, OR N PACKAGE  
Inputs Are TTL-Voltage Compatible  
(TOP VIEW)  
3-State Outputs Interface Directly With  
System Bus  
A/B  
1Y  
2Y  
GND  
GND  
GND  
GND  
3Y  
1A  
1B  
2A  
2B  
V
1
2
3
4
5
6
7
8
9
10  
20  
19  
18  
17  
16  
15  
Flow-Through Architecture Optimizes  
PCB Layout  
Center-Pin V  
Minimize High-Speed Switching Noise  
and GND Configurations  
CC  
CC  
EPIC (Enhanced-Performance Implanted  
CMOS) 1- m Process  
V
CC  
14 3A  
13 3B  
500-mA Typical Latch-Up Immunity at  
125°C  
12  
11  
4Y  
OE  
4A  
4B  
Provides Bus Interface From Multiple  
Sources in High-Performance Systems  
Package Options Include Plastic  
Small-Outline (DW) and Shrink  
Small-Outline (DB) Packages, and Standard  
Plastic 300-mil DIPs (N)  
description  
The 74ACT11257 is designed to multiplex signals from 4-bit data sources to four output data lines in  
bus-organized systems. The 3-state outputs do not load the data lines when the output-enable (OE) input is at  
a high logic level.  
The 74ACT11257 is characterized for operation from –40°C to 85°C.  
FUNCTION TABLE  
INPUTS  
OUTPUT  
DATA  
SELECT  
A/B  
Y
OE  
A
X
L
B
X
X
X
L
H
L
L
L
L
X
L
Z
L
L
H
X
X
H
L
H
H
H
H
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.  
EPIC is a trademark of Texas Instruments Incorporated.  
Copyright 1996, 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.  
1
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265  
123456

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74ACT11257DB TI

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 		QUADRUPLE 2-LINE TO 1-LINE DATA SELECTOR/MULTIPLEXER WITH 3-STATE OUTPUTS
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74ACT11257DWG4 TI

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 		QUADRUPLE 2-LINE TO 1-LINE DATA SELECTOR/MULTIPLEXER WITH 3-STATE OUTPUTS

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