ID82C52

The Renesas ID82C52 is a CMOS serial controller interface belonging to the 82C52 family, functioning as a full-duplex universal asynchronous receiver-transmitter (UART) for integrating serial data links into microprocessor-based systems. Designed with a programmable baud rate generator, selectable word lengths, and a flexible interrupt structure, this device enables efficient asynchronous communication while minimizing CPU overhead. Housed in a CDIP (ceramic dual in-line package), it provides hermetic sealing, extended industrial or military temperature operation, and enhanced immunity to mechanical and environmental stress, making it a preferred choice where reliability under harsh conditions is a design requirement.

Typical applications span defense avionics, missile guidance telemetry, ruggedized industrial automation controllers, and aerospace data acquisition systems where the part serves as a command/data interface for embedded processors or FPGAs. Procurement engineers should note that the ID82C52 and its variants frequently appear in legacy, long-lifecycle programs, elevating the importance of obsolescence management. The ceramic DIP configuration and the availability of military-grade screening options, such as MIL-STD-883 processing, support use in high-reliability and qualified defense platforms but can also mean extended lead times and last-time-buy constraints as the product matures. Verifying current production status, authorized distribution sources, and any recommended second-source or drop-in replacements is essential for maintaining continuity in deployed systems and new redesigns.