SN74AS280 - 9 位奇偶校验发生器/校验器

SN74AS280是TI德州仪器公司的一款计数器/算术/奇偶校验功能产品，SN74AS280是9 位奇偶校验发生器/校验器，本站介绍了SN74AS280的封装应用图解、特点和优点、功能等，并给出了与SN74AS280相关的TI元器件型号供参考。

SN74AS280 - 9 位奇偶校验发生器/校验器 - 计数器/算术/奇偶校验功能 - 特殊逻辑 - 德州仪器

产品描述

These universal 9-bit parity generators/checkers utilize advanced Schottky high-performance

circuitry and feature odd ( ODD) and even ( 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 SN74AS180 parity 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.

产品特性

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

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