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SN74F257NSR PDF预览

SN74F257NSR

更新时间: 2024-11-18 13:00:27
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
5页 77K
描述
Quadruple 2-Line To 1-Line Data Selectors/Multiplexers With 3-State Outputs 16-SO 0 to 70

SN74F257NSR 技术参数

是否无铅: 不含铅是否Rohs认证: 符合
生命周期:Active零件包装代码:SOIC
包装说明:SOP,针数:16
Reach Compliance Code:compliantECCN代码:EAR99
HTS代码:8542.39.00.01Factory Lead Time:6 weeks
风险等级:1.38系列:F/FAST
JESD-30 代码:R-PDSO-G16JESD-609代码:e4
长度:10.3 mm负载电容(CL):50 pF
逻辑集成电路类型:MULTIPLEXER最大I(ol):0.024 A
湿度敏感等级:1位数:4
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
包装方法:TR峰值回流温度(摄氏度):260
最大电源电流(ICC):23 mAProp。Delay @ Nom-Sup:7 ns
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

SN74F257NSR 数据手册

 浏览型号SN74F257NSR的Datasheet PDF文件第2页浏览型号SN74F257NSR的Datasheet PDF文件第3页浏览型号SN74F257NSR的Datasheet PDF文件第4页浏览型号SN74F257NSR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  

SN74F257NSR 替代型号

型号 品牌 替代类型 描述 数据表
SN74F257DR TI

完全替代

QUADRUPLE 2-LINE TO 1-LINE TO 1-LINE DATA SELECTORS/MULTIPLEXERS WITH 3-STATE OUTPUTS
SN74F257N TI

完全替代

QUADRUPLE 2-LINE TO 1-LINE DATA SELECTORS/MULTIPLEXERS WITH 3-STATE OUTPUTS
SN74F257D TI

完全替代

QUADRUPLE 2-LINE TO 1-LINE DATA SELECTORS/MULTIPLEXERS WITH 3-STATE OUTPUTS

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