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SN74ALS257ADRE4 PDF预览

SN74ALS257ADRE4

更新时间: 2024-01-29 06:59:14
品牌 Logo 应用领域
德州仪器 - TI 光电二极管逻辑集成电路
页数 文件大小 规格书
22页 1123K
描述
Quadruple 2-Line To 1-Line Data Selectors/Multiplexers With 3-State Outputs 16-SOIC 0 to 70

SN74ALS257ADRE4 技术参数

是否无铅: 不含铅是否Rohs认证: 符合
生命周期:Obsolete零件包装代码:SOIC
包装说明:SOP, SOP16,.25针数:16
Reach Compliance Code:unknownHTS代码:8542.39.00.01
风险等级:5.45系列:ALS
JESD-30 代码:R-PDSO-G16JESD-609代码:e4
长度:9.9 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封装等效代码:SOP16,.25
封装形状:RECTANGULAR封装形式:SMALL OUTLINE
包装方法:TAPE AND REEL峰值回流温度(摄氏度):260
电源:5 V最大电源电流(ICC):12 mA
Prop。Delay @ Nom-Sup:12 ns传播延迟(tpd):12 ns
认证状态:Not Qualified座面最大高度:1.75 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: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:3.9 mmBase Number Matches:1

SN74ALS257ADRE4 数据手册

 浏览型号SN74ALS257ADRE4的Datasheet PDF文件第2页浏览型号SN74ALS257ADRE4的Datasheet PDF文件第3页浏览型号SN74ALS257ADRE4的Datasheet PDF文件第4页浏览型号SN74ALS257ADRE4的Datasheet PDF文件第5页浏览型号SN74ALS257ADRE4的Datasheet PDF文件第6页浏览型号SN74ALS257ADRE4的Datasheet PDF文件第7页 
ꢃꢄ  
ꢊ ꢋꢄꢌ ꢍꢋꢎ ꢅ ꢏ ꢆ ꢐꢅ ꢑꢁꢏ ꢒ ꢓ ꢔ ꢐꢅ ꢑꢁꢏ ꢌꢄꢒꢄ ꢀꢏ ꢅꢏ ꢕꢒꢓ ꢍꢀꢖ ꢗꢋ ꢅꢒ ꢑ ꢎꢅ ꢏꢘ ꢏ ꢍ  
SDAS124C − APRIL 1982 − REVISED AUGUST 1996  
SN54ALS257A, SN54ALS258A . . . J PACKAGE  
SN74ALS257A, SN74ALS258A, SN74AS257,  
SN74AS258 . . . D OR N PACKAGE  
(TOP VIEW)  
D
D
D
3-State Outputs Interface Directly With  
System Bus  
Provide Bus Interface From Multiple  
Sources in High-Performance Systems  
A/B  
1A  
1B  
1Y  
2A  
2B  
2Y  
GND  
V
CC  
15 OE  
1
2
3
4
5
6
7
8
16  
Package Options Include Plastic  
Small-Outline (D) Packages, Ceramic Chip  
Carriers (FK), and Standard Plastic (N) and  
Ceramic (J) 300-mil DIPs  
4A  
4B  
14  
13  
12 4Y  
3A  
10 3B  
3Y  
description  
11  
These data selectors/multiplexers are designed  
9
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.  
SN54ALS257A, SN54ALS258A . . . FK PACKAGE  
(TOP VIEW)  
The SN54ALS257A and SN54ALS258A are  
characterized for operation over the full military  
temperature range of −55°C to 125°C. The  
SN74ALS257A, SN74ALS258A, SN74AS257,  
and SN74AS258 are 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  
9 10 11 12 13  
NC − No internal connection  
FUNCTION TABLE  
OUTPUT Y  
SN54ALS257A SN54ALS258A  
INPUTS  
DATA  
SN74ALS257A  
SN74AS257  
SN74ALS258A  
SN74AS258  
OE A/B  
A
B
H
L
L
L
L
X
L
X
L
X
X
X
L
Z
L
Z
H
L
L
H
X
X
H
L
H
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.  
ꢒꢧ  
Copyright 1996, Texas Instruments Incorporated  
ꢣ ꢧ ꢤ ꢣꢜ ꢝꢱ ꢟꢞ ꢢ ꢪꢪ ꢨꢢ ꢠ ꢢ ꢡ ꢧ ꢣ ꢧ ꢠ ꢤ ꢬ  
1
POST OFFICE BOX 655303 DALLAS, TEXAS 75265  
POST OFFICE BOX 1443 HOUSTON, TEXAS 77251−1443  

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