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SN74AS280D PDF预览

SN74AS280D

更新时间: 2024-11-13 23:03:11
品牌 Logo 应用领域
德州仪器 - TI /
页数 文件大小 规格书
12页 345K
描述
9-BIT PARITY GENERATORS/CHECKERS

SN74AS280D 技术参数

是否Rohs认证: 符合生命周期:Obsolete
零件包装代码:SOIC包装说明:SOP, SOP14,.25
针数:14Reach Compliance Code:compliant
HTS代码:8542.39.00.01Factory Lead Time:1 week
风险等级:5.54其他特性:ODD/EVEN PARITY GENERATOR
系列:ASJESD-30 代码:R-PDSO-G14
JESD-609代码:e4长度:8.65 mm
负载电容(CL):50 pF逻辑集成电路类型:PARITY GENERATOR/CHECKER
湿度敏感等级:1位数:9
功能数量:1端子数量:14
最高工作温度:70 °C最低工作温度:
输出特性:3-STATE输出极性:COMPLEMENTARY
封装主体材料:PLASTIC/EPOXY封装代码:SOP
封装等效代码:SOP14,.25封装形状:RECTANGULAR
封装形式:SMALL OUTLINE峰值回流温度(摄氏度):260
电源:5 V最大电源电流(ICC):35 mA
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:Arithmetic Circuits
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 mm
Base Number Matches:1

SN74AS280D 数据手册

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SN74ALS280, SN74AS280  
9-BIT PARITY GENERATORS/CHECKERS  
SDAS038C – DECEMBER 1982 – REVISED DECEMBER 1994  
D OR N PACKAGE  
(TOP VIEW)  
Generate Either Odd or Even Parity for Nine  
Data Lines  
Cascadable for n-Bit Parity  
G
H
NC  
V
F
E
D
C
B
A
1
2
3
4
5
6
7
14  
13  
12  
11  
10  
9
CC  
Can Be Used to Upgrade Existing Systems  
Using MSI Parity Circuits  
Package Options Include Plastic  
Small-Outline (D) Packages and Standard  
Plastic (N) 300-mil DIPs  
I
Σ EVEN  
Σ ODD  
GND  
8
description  
NC – No internal connection  
These universal 9-bit parity generators/checkers  
utilize advanced Schottky high-performance  
circuitry and feature odd (Σ ODD) and even (Σ EVEN) outputs to facilitate operation of either odd- or even-parity  
applications. The word-length capability is easily expanded by cascading.  
These devices can be used to upgrade the performance of most systems utilizing the SN74ALS180 and  
SN74AS180parity generators/checkers. Although the SN74ALS280 and SN74AS280 are implemented without  
expander inputs, the corresponding function is provided by the availability of an input (I) at terminal 4 and the  
absence of any internal connection at terminal 3. This permits the SN74ALS280 and SN74AS280 to be  
substituted for the SN74ALS180 and SN74AS180 in existing designs to produce an identical function even if  
the devices are mixed with existing SN74ALS180 and SN74AS180 devices.  
All SN74AS280 inputs are buffered to lower the drive requirements.  
The SN74ALS280 and SN74AS280 are characterized for operation from 0°C to 70°C.  
FUNCTION TABLE  
NO. OF INPUTS  
A–I  
THAT ARE HIGH  
OUTPUTS  
Σ EVEN  
Σ ODD  
0, 2, 4, 6, 8  
1, 3, 5, 7, 9  
H
L
L
H
logic symbol  
2k  
8
A
B
C
D
E
F
G
H
I
9
10  
11  
12  
13  
1
5
6
Σ EVEN  
Σ ODD  
2
4
This symbol is in accordance with ANSI/IEEE Std 91-1984 and IEC Publication 617-12.  
Copyright 1994, 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.  
1
POST OFFICE BOX 655303 DALLAS, TEXAS 75265  

SN74AS280D 替代型号

型号 品牌 替代类型 描述 数据表
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