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SN54AHC257J PDF预览

SN54AHC257J

更新时间： 2024-11-02 09:18:15
品牌 Logo 应用领域
德州仪器 - TI 解复用器逻辑集成电路输出元件
页数 文件大小 规格书
9页 134K
描述
QUADRUPLE 2-LINE TO 1-LINE DATA SELECTORS/MULTIPLEXERS WITH 3-STATE OUTPUTS

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SN54AHC257J 技术参数

生命周期：Obsolete零件包装代码：DIP
包装说明：DIP,针数：16
Reach Compliance Code：unknownHTS代码：8542.39.00.01
风险等级：5.84系列：AHC
JESD-30 代码：R-GDIP-T16长度：19.56 mm
逻辑集成电路类型：MULTIPLEXER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：125 °C
最低工作温度：-55 °C输出特性：3-STATE
输出极性：TRUE封装主体材料：CERAMIC, GLASS-SEALED
封装代码：DIP封装形状：RECTANGULAR
封装形式：IN-LINE认证状态：Not Qualified
座面最大高度：5.08 mm最大供电电压 (Vsup)：5.5 V
最小供电电压 (Vsup)：2 V标称供电电压 (Vsup)：3.3 V
表面贴装：NO技术：CMOS
温度等级：MILITARY端子形式：THROUGH-HOLE
端子节距：2.54 mm端子位置：DUAL
宽度：7.62 mmBase Number Matches：1

SN54AHC257J 数据手册

 浏览型号SN54AHC257J的Datasheet PDF文件第2页浏览型号SN54AHC257J的Datasheet PDF文件第3页浏览型号SN54AHC257J的Datasheet PDF文件第4页浏览型号SN54AHC257J的Datasheet PDF文件第5页浏览型号SN54AHC257J的Datasheet PDF文件第6页浏览型号SN54AHC257J的Datasheet PDF文件第7页 
SN54AHC257, SN74AHC257  
QUADRUPLE 2-LINE TO 1-LINE DATA SELECTORS/MULTIPLEXERS  
WITH 3-STATE OUTPUTS  
SCLS349C – MAY 1996 – REVISED JULY 1998  
SN54AHC257 . . . J OR W PACKAGE  
SN74AHC257 . . . D, DB, DGV, N, OR PW PACKAGE  
(TOP VIEW)  
Operating Range 2-V to 5.5-V V  
CC  
EPIC (Enhanced-Performance Implanted  
CMOS) Process  
A/B  
1A  
V
CC  
1
2
3
4
5
6
7
8
16  
15  
14  
13  
Package Options Include Plastic  
Small-Outline (D), Shrink Small-Outline  
(DB), Thin Very Small-Outline (DGV), Thin  
Shrink Small-Outline (PW), and Ceramic  
Flat (W) Packages, Ceramic Chip Carriers  
(FK), and Standard Plastic (N) and Ceramic  
(J) DIPs  
OE  
4A  
4B  
1B  
1Y  
2A  
12 4Y  
11  
10  
9
2B  
3A  
3B  
3Y  
2Y  
GND  
description  
These quadruple 2-line to 1-line data  
selectors/multiplexers are designed for 2-V to  
SN54AHC257 . . . FK PACKAGE  
(TOP VIEW)  
5.5-V V  
operation.  
CC  
The ’AHC257 devices 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 a high logic level.  
3
2
1 20 19  
18  
4A  
1B  
1Y  
NC  
2A  
2B  
4
5
6
7
8
17 4B  
16  
NC  
15  
4Y  
To ensure the high-impedance state during power  
14  
3A  
up or power down, OE should be tied to V  
CC  
9 10 11 12 13  
through a pullup resistor; the minimum value of  
the resistor is determined by the current-sinking  
capability of the driver.  
NC – No internal connection  
The SN54AHC257 is characterized for operation  
over the full military temperature range of –55°C  
to 125°C. The SN74AHC257 is characterized for  
operation from –40°C to 85°C.  
FUNCTION TABLE  
INPUTS  
OUTPUT  
Y
A/B  
A
X
L
B
X
X
X
L
OE  
H
L
X
L
Z
L
L
L
H
X
X
H
L
L
H
H
L
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 1998, Texas Instruments Incorporated  
PRODUCT PREVIEW information concerns products in the formative or  
design phase of development. Characteristic data and other  
specifications are design goals. Texas Instruments reserves the right to  
change or discontinue these products without notice.  
1
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265  
1234567...9

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