SN74AS280

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

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数据手册

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SN74AS280 数据手册

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

• 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

Σ EVEN

Σ ODD

GND

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

†

logic symbol

Σ EVEN

Σ ODD

†

This symbol is in accordance with ANSI/IEEE Std 91-1984 and IEC Publication 617-12.

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.

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

12 3 4 5 6 7...12

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与SN74AS280相关器件

型号	品牌	获取价格	描述	数据表
SN74AS280D	TI	获取价格	9-BIT PARITY GENERATORS/CHECKERS
SN74AS280D3	ROCHESTER	获取价格	Parity Generator/Checker
SN74AS280DE4	TI	获取价格	9-BIT PARITY GENERATORS/CHECKERS
SN74AS280DG4	TI	获取价格	9-BIT PARITY GENERATORS/CHECKETS
SN74AS280DP3	TI	获取价格	IC,PARITY GENERATOR/CHECKER,AS-TTL,SOP,14PIN,PLASTIC
SN74AS280DR	TI	获取价格	9-BIT PARITY GENERATORS/CHECKERS
SN74AS280DRE4	TI	获取价格	9-BIT PARITY GENERATORS/CHECKERS
SN74AS280DRG4	TI	获取价格	9-BIT PARITY GENERATORS/CHECKETS
SN74AS280FN	TI	获取价格	AS SERIES, 9-BIT PARITY GENERATOR/CHECKER, COMPLEMENTARY OUTPUT, PQCC20
SN74AS280N	TI	获取价格	9-BIT PARITY GENERATORS/CHECKERS