SN54S280 - 9 位奇/偶校验发生器/检测器

SN54S280是TI德州仪器公司的一款计数器/算术/奇偶校验功能产品，SN54S280是9 位奇/偶校验发生器/检测器，本站介绍了SN54S280的封装应用图解、特点和优点、功能等，并给出了与SN54S280相关的TI元器件型号供参考。

SN54S280 - 9 位奇/偶校验发生器/检测器 - 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, monolithic, nine-bit parity generators/checkers utilize Schottky-clamped TTL high-performance circuitry and feature odd/even outputs to facilitate operation of either odd or even parity application. The word-length capability is easily expanded by cascading as shown under typical application data.

Series 54LS/74LS and Series 54S/74S parity generators/checkers offer the designer a trade-off between reduced power consumption and high performance. These devices can be used to upgrade the performance of most systems utilizing the '180 parity generator/checker. Although the 'LS280 and 'S280 are implemented without expander inputs, the corresponding function is provided by the availability of an input at pin 4 and the absence of any internal connection at pin 3. This permits the 'LS280 and 'S280 to be substituted for the '180 in existing designs to produce an identical function even if 'LS280's and 'S280's are mixed with existing '180's.

These devices are fully compatible with most other TTL circuits. All 'LS280 and 'S280 inputs are buffered to lower the drive requirements to one Series 54LS/74LS or Series 54S/74S standard load, respectively.

产品特性

Generates Either Odd or Even Parity for Nine Data Lines
Cascadable for n-Bits
Can Be Used to Upgrade Existing Systems using MSI Parity Circuits
Typical Data-to-Output Delay of Only 14 ns for 'S280 and 33 ns for 'LS280
Typical Power Dissipation:
- 'LS280 … 80 mW
- 'S280 … 335 mW

logic symbol

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