5962-9958602QYC

Overview

The Microchip Technology part number 5962-9958602QYC is a standard SRAM component manufactured by Cobham Semiconductor Solutions under the UT9Q512E designation. It features a memory organization of 512K words by 8 bits, providing a total capacity of 4,194,304 bits. The device operates asynchronously with a maximum access time of 25 nanoseconds at a 5-volt supply. It utilizes CMOS technology and is housed in a 36-lead ceramic flatpack (CDFP) package.

Feature Summary

• Radiation tolerant design suitable for harsh environments
• Single Event Upset immunity up to 52 cm²·MeV/mg
• TTL compatible inputs and output levels

Applications

• Geosynchronous orbit satellite systems
• Military aerospace avionics
• High-reliability industrial control units

Procurement Notes

Verify the manufacturer origin as Cobham Semiconductor Solutions despite the Microchip Technology branding on the ordering suffix. Confirm the specific radiation qualification standards required for your deployment environment. Ensure the ceramic flatpack package dimensions match your PCB footprint constraints before finalizing procurement orders.

Selection Notes

Select this component when high radiation tolerance and single-event upset immunity are critical requirements. The asynchronous interface ensures compatibility with industry-standard logic families. Consider the 25ns access speed against system timing budgets. Verify that the 5V supply voltage aligns with the target circuit design specifications.

Part Context

This part belongs to the UT9Q512E family of rad-tolerant static RAMs. It is designed for applications requiring robust performance in high-radiation environments. The 512K x 8 configuration provides substantial storage density for embedded processing tasks in space-constrained aerospace platforms.

Replacement Considerations

Public confirmed substitute part numbers include 5962L0053602QYC from Cobham Semiconductor Solutions. Verify pinout and electrical parameter compatibility before substitution.