5962-9957201NUA

Overview

The AMD 5962-9957201NUA is a military-grade radiation-hardened-by-design (RHBD) static random-access memory (SRAM) chip. It features a 4-megabit capacity organized as 512K words by 9 bits, incorporating eight bit error correction code (ECC) bits for enhanced data integrity in harsh environments. The device operates within an extended temperature range of -55°C to +125°C and utilizes a 32-pin ceramic dual in-line package (CDIP). Designed for high-reliability applications, it supports single-voltage operation with specific access times suitable for aerospace and defense systems requiring robust memory solutions.

Feature Summary

• Radiation-hardened-by-design architecture ensures reliable operation in high-radiation environments typical of space missions.
• Integrated ECC logic provides automatic detection and correction of single-bit errors to maintain data integrity.
• Military-grade construction supports extended operating temperatures from -55°C to +125°C for extreme condition resilience.

Applications

• Satellite onboard data handling systems
• Spacecraft flight control computers
• High-altitude unmanned aerial vehicle (UAV) avionics

Procurement Notes

Verify the component authenticity through authorized distributors or direct manufacturer channels due to its specialized military specification status. Confirm that the part number suffix matches the required speed grade and package variant. Ensure compliance with relevant export control regulations when sourcing this radiation-hardened semiconductor for international projects.

Selection Notes

Select this component when designing systems for orbital or deep-space environments where standard commercial SRAMs would fail due to total ionizing dose effects. Compare against other RHBD SRAM families based on power consumption requirements and pin compatibility. Validate that the 9-bit word width including ECC aligns with the target processor's memory interface specifications.

Part Context

This part belongs to AMD's legacy radiation-hardened product portfolio, originally developed for defense contractors. It represents a mature technology node optimized for reliability rather than raw performance density. The numbering convention indicates a specific military lot traceability and qualification standard distinct from commercial variants.

Replacement Considerations

Direct pin-to-pin replacements are limited due to the specialized RHBD nature of the chip. Evaluate newer generation AMD RHBD SRAMs only if they offer backward-compatible pinouts and similar ECC configurations. Verify that any substitute maintains the same thermal and radiation hardness qualifications.