5962-8981703XA

The Teledyne e2v 5962-8981703XA is a military-grade ultraviolet erasable programmable read-only memory (UV EPROM) that functions as a 256K-bit non-volatile storage device organized as 32K x 8 bits, supplied in a 28-pin windowed ceramic dual-in-line package (CERDIP). As a member of the CY7C271 family, this component provides a typical access time in the 35 ns range, enabling efficient interfacing with high-speed microprocessors and digital signal processors in legacy embedded architectures. The quartz window integrated into the ceramic package allows the complete erasure of stored content via controlled UV light exposure, after which the array can be reprogrammed using standard EPROM programmers, a feature valued during prototyping, field upgrades, and post-deployment maintenance cycles.

This device is typically deployed in avionics flight control computers, missile guidance systems, and secure military communication terminals, where radiation-tolerant, hermetically sealed storage is necessary for firmware, calibration tables, or cryptographic keys. The 5962 prefix and associated military processing, qualifying it under MIL-PRF-38535 standards, ensure reliable operation across stringent temperature extremes and high-vibration environments. From a procurement standpoint, UV EPROMs in this class face escalating obsolescence risk as original wafer fabrication has been phased out in favor of flash and EEPROM technologies. Supply commonly relies on new old stock or certified aftermarket sources, requiring rigorous verification of date codes, lot traceability, hermetic seal integrity, and anti-counterfeit measures to maintain the long-term reliability mandated by defense and aerospace sustainment programs.