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SN74HCT257N PDF预览

SN74HCT257N

更新时间: 2024-11-04 23:03:15
品牌 Logo 应用领域
德州仪器 - TI 解复用器逻辑集成电路光电二极管输出元件
页数 文件大小 规格书
6页 113K
描述
QUADRUPLE 2-LINE TO 1-LINE DATA SELECTORS/MULTIPLEXERS WITH 3-STATE OUTPUTS

SN74HCT257N 技术参数

是否Rohs认证: 符合生命周期:Active
零件包装代码:DIP包装说明:DIP, DIP16,.3
针数:16Reach Compliance Code:compliant
ECCN代码:EAR99HTS代码:8542.39.00.01
风险等级:0.83系列:HCT
JESD-30 代码:R-PDIP-T16JESD-609代码:e4
长度:19.3 mm负载电容(CL):150 pF
逻辑集成电路类型:MULTIPLEXER最大I(ol):0.006 A
位数:2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:85 °C
最低工作温度:-40 °C输出特性:3-STATE
输出极性:TRUE封装主体材料:PLASTIC/EPOXY
封装代码:DIP封装等效代码:DIP16,.3
封装形状:RECTANGULAR封装形式:IN-LINE
包装方法:TUBE峰值回流温度(摄氏度):NOT SPECIFIED
电源:5 V最大电源电流(ICC):0.08 mA
Prop。Delay @ Nom-Sup:38 ns传播延迟(tpd):48 ns
认证状态:Not Qualified座面最大高度:5.08 mm
子类别:Multiplexer/Demultiplexers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:NO技术:CMOS
温度等级:INDUSTRIAL端子面层:Nickel/Palladium/Gold (Ni/Pd/Au)
端子形式:THROUGH-HOLE端子节距:2.54 mm
端子位置:DUAL处于峰值回流温度下的最长时间:NOT SPECIFIED
宽度:6.35 mmBase Number Matches:1

SN74HCT257N 数据手册

 浏览型号SN74HCT257N的Datasheet PDF文件第2页浏览型号SN74HCT257N的Datasheet PDF文件第3页浏览型号SN74HCT257N的Datasheet PDF文件第4页浏览型号SN74HCT257N的Datasheet PDF文件第5页浏览型号SN74HCT257N的Datasheet PDF文件第6页 
SN54HCT257, SN74HCT257  
QUADRUPLE 2-LINE TO 1-LINE DATA SELECTORS/MULTIPLEXERS  
WITH 3-STATE OUTPUTS  
SCLS072B – NOVEMBER 1988 – REVISED MAY 1997  
SN54HCT257 . . . J PACKAGE  
SN74HCT257 . . . N PACKAGE  
(TOP VIEW)  
Inputs Are TTL-Voltage Compatible  
Provide Bus Interface From Multiple  
Sources in High-Performance Systems  
High-Current 3-State Outputs Interface  
Directly With System Bus  
A/B  
1A  
V
CC  
1
2
3
4
5
6
7
8
16  
15  
14  
13  
OE  
4A  
4B  
1B  
Buffered Inputs and Outputs  
1Y  
Package Options Include Ceramic Chip  
Carriers (FK) and Standard Plastic (N) and  
Ceramic (J) 300-mil DIPs  
2A  
12 4Y  
11  
10  
9
2B  
3A  
3B  
3Y  
2Y  
GND  
description  
The ’HCT257 are designed to multiplex signals  
from 4-bit data sources to 4-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 the high logic level.  
SN54HCT257 . . . FK PACKAGE  
(TOP VIEW)  
3
2
1
20 19  
18  
The SN54HCT257 is characterized for operation  
over the full military temperature range of –55°C  
to 125°C. The SN74HCT257 is characterized for  
operation from –40°C to 85°C.  
4A  
4B  
NC  
1B  
1Y  
NC  
2A  
2B  
4
5
6
7
8
17  
16  
15 4Y  
14  
9 10 11 12 13  
3A  
FUNCTION TABLE  
INPUTS  
OUTPUT  
DATA  
SELECT  
A/B  
Y
OE  
A
X
L
B
X
X
X
L
NC – No internal connection  
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.  
Copyright 1997, 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.  
1
POST OFFICE BOX 655303 DALLAS, TEXAS 75265  

SN74HCT257N 替代型号

型号 品牌 替代类型 描述 数据表
SN74HCT257NE4 TI

完全替代

QUADRUPLE 2-LINE TO 1-LINE DATA SELECTORS/MULTIPLEXERS WITH 3-STATE OUTPUTS
CD74HCT257E TI

类似代替

High Speed CMOS Logic Quad 2-Input Multiplexer with Three-State Non-Inverting Outputs
CD74HCT257EE4 TI

功能相似

High-Speed CMOS Logic Quad 2-Input Multiplexer with Three-State Non-Inverting Outputs

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