CS82C55A Programmable Parallel I O for Control Hardware

CS82C55A is intended for processor boards that need more programmable parallel input and output without adding extra interface logic. It is useful in control systems, test equipment, and embedded hardware that still rely on direct digital I O for sensors, switches, and peripheral connections. CS82C55A provides 24 programmable I O pins arranged in 2 groups of 12 and supports 3 major operating modes. The 44-pin PLCC package also makes it a practical fit for replacement boards and continued support of established architectures where parallel interfacing remains part of the original design. Use CS82C55A when stable, configurable digital I O is still central to the system. Request a quote for CS82C55A.