This document describes the product specification of the 74F280B 9-bit odd/even parity generator/checker. The IC features high-impedance NPN base inputs for reduced loading, buffered inputs, and easy word length expansion by cascading. It is commonly used for error detection in high-speed data transmission or retrieval systems. The IC provides both even and odd parity outputs for generating or checking parity on up to 9 bits. Expansion to larger word sizes can be achieved by connecting the even parity outputs of multiple parallel devices to the data inputs of the final stage. The IC operates at industrial temperature range and has a fast propagation delay and low supply current.
