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SN74F257NSRE4 PDF预览

SN74F257NSRE4

更新时间: 2024-11-21 14:44:51
品牌 Logo 应用领域
德州仪器 - TI 光电二极管输出元件
页数 文件大小 规格书
5页 72K
描述
F/FAST SERIES, QUAD 2 LINE TO 1 LINE MULTIPLEXER, TRUE OUTPUT, PDSO16, SOP-16

SN74F257NSRE4 技术参数

是否无铅: 含铅是否Rohs认证: 符合
生命周期:Obsolete零件包装代码:SOIC
包装说明:SOP,针数:16
Reach Compliance Code:unknownHTS代码:8542.39.00.01
风险等级:5.48系列:F/FAST
JESD-30 代码:R-PDSO-G16JESD-609代码:e4
长度:10.2 mm逻辑集成电路类型:MULTIPLEXER
湿度敏感等级:1功能数量:4
输入次数:2输出次数:1
端子数量:16最高工作温度:70 °C
最低工作温度:输出特性:3-STATE
输出极性:TRUE封装主体材料:PLASTIC/EPOXY
封装代码:SOP封装形状:RECTANGULAR
封装形式:SMALL OUTLINE峰值回流温度(摄氏度):260
传播延迟(tpd):7 ns认证状态:Not Qualified
座面最大高度:2 mm最大供电电压 (Vsup):5.5 V
最小供电电压 (Vsup):4.5 V标称供电电压 (Vsup):5 V
表面贴装:YES技术:TTL
温度等级:COMMERCIAL端子面层:Nickel/Palladium/Gold (Ni/Pd/Au)
端子形式:GULL WING端子节距:1.27 mm
端子位置:DUAL处于峰值回流温度下的最长时间:NOT SPECIFIED
宽度:5.3 mmBase Number Matches:1

SN74F257NSRE4 数据手册

 浏览型号SN74F257NSRE4的Datasheet PDF文件第2页浏览型号SN74F257NSRE4的Datasheet PDF文件第3页浏览型号SN74F257NSRE4的Datasheet PDF文件第4页浏览型号SN74F257NSRE4的Datasheet PDF文件第5页 
SN54F257, SN74F257  
QUADRUPLE 2-LINE TO 1-LINE DATA SELECTORS/MULTIPLEXERS  
WITH 3-STATE OUTPUTS  
SDFS065A – D2932, MARCH 1987 – REVISED OCTOBER 1993  
SN54F257 . . . J PACKAGE  
SN74F257 . . . D OR N PACKAGE  
(TOP VIEW)  
3-State Outputs Interface Directly With  
System Bus  
Provides Bus Interface From Multiple  
Sources in High-Performance Systems  
V
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
CC  
Package Options Include Plastic  
Small-Outline Packages, Ceramic Chip  
Carriers, and Standard Plastic and Ceramic  
300-mil DIPs  
OE  
4A  
4B  
4Y  
3A  
3B  
3Y  
description  
The F257 is designed to multiplex signals from  
4-bit data sources to 4-output data lines in  
bus-organized systems. The 3-state outputs will  
not load the data lines when the output enable  
(OE) input is at a high logic level.  
SN54F257 . . . FK PACKAGE  
(TOP VIEW)  
The SN54F257 is characterized for operation over  
the full military temperature range of 55°C to  
125°C. The SN74F257 is characterized for  
operation from 0°C to 70°C.  
3
2
1
20 19  
18  
4A  
4B  
NC  
4Y  
3A  
1B  
1Y  
NC  
2A  
2B  
4
5
6
7
8
17  
16  
15  
14  
FUNCTION TABLE  
INPUTS  
OUTPUT  
9 10 11 12 13  
Y
Z
L
OE  
H
L
A/B  
X
A
X
L
B
X
X
X
L
L
L
L
H
X
X
H
L
NC – No internal connection  
L
H
L
H
H
H
logic symbol  
15  
1
EN  
G1  
OE  
A/B  
2
1A  
1B  
2A  
2B  
3A  
3B  
4A  
4B  
MUX  
4
1
1
3
1Y  
5
7
6
2Y  
11  
10  
14  
13  
9
3Y  
12  
4Y  
This symbol is in accordance with ANSI/IEEE Std 91-1984 and IEC Publication 617-12.  
Pin numbers shown are for the D, J, and N packages.  
Copyright 1993, 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.  
2–1  
POST OFFICE BOX 655303 DALLAS, TEXAS 75265  

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