WS512K32N-17H1M

The Microchip Technology WS512K32N-17H1M is a high-reliability (HiRel) 512K x 32-bit static RAM module, providing 16 Mbit of asynchronous memory in a rugged 66-pin ceramic pin grid array (CPGA-66) package. It delivers a 17 ns access time, making it suitable for high-speed embedded processing, and integrates four 512K x 8 SRAM dice within a hermetic ceramic enclosure that withstands extreme temperature cycling, mechanical shock, and vibration. The module operates from a single 5 V supply and uses a standard asynchronous SRAM interface, simplifying memory expansion in legacy and new high-reliability designs.

Typical applications include aerospace flight computers, military radar and signal processing systems, satellite payloads, and industrial controllers where deterministic read/write timing and data integrity are critical for buffering or scratchpad operations. The M-grade screening reflects compliance with MIL-STD-883, covering an extended operating temperature range of -55°C to +125°C and comprehensive burn-in testing to eliminate early-life failures. For procurement, the part should be sourced through authorized Microchip aerospace and defense channels to mitigate counterfeit risks. As a specialized HiRel memory module, it can face extended lead times and eventual obsolescence; proactive lifecycle management and last-time-buy planning are essential considerations for sustaining long-term production programs.