951200601

Overview

The Microchip SAMRH71 (Part Number 951200601) is a radiation-hardened Arm Cortex-M7 microcontroller designed for space applications. It operates at 100 MHz with over 200 DMIPS performance. The device features 128 KB embedded Flash and 384 KB SRAM with ECC, plus 768 KB multiport SRAM. It includes SpaceWire, MIL-STD-1553B, CAN FD, and Ethernet GMAC interfaces. Qualified to ESCC QPL standards in a CQFP256 hermetic ceramic package.

Feature Summary

• Radiation-hardened design supporting extreme temperature ranges and high reliability
• Integrated SpaceWire interface with RMAP support and embedded router
• MIL-STD-1553B compliant communication interface with redundant links
• High-performance Arm Cortex-M7 core with hardware floating-point unit

Applications

• Spacecraft onboard computers
• Satellite payload processing systems
• Deep space mission control units
• Harsh environment industrial controllers

Procurement Notes

Verify the specific ordering suffix against the manufacturer's current product selection guide to ensure correct qualification level. Confirm package type and thermal specifications match system requirements. Check for availability of engineering samples or production quantities through authorized distributors. Ensure compliance with project-specific radiation tolerance thresholds before procurement.

Selection Notes

Select this component when high processing power is required alongside space-grade connectivity. Consider the CQFP256 package for hermetic sealing needs. Evaluate memory configurations if external memory access via HEMC is necessary. Verify software ecosystem compatibility with FreeRTOS or RTEMS for development efficiency.

Part Context

This part belongs to the SAMRH71 family of radiation-hardened MCUs based on the Arm Cortex-M7 architecture. It represents an expansion of Microchip's portfolio for aerospace missions, offering a balance of computational performance and specialized space interfaces. It serves as a robust alternative to traditional non-radiation-hardened processors in orbital environments.

Replacement Considerations

Direct replacements include other SAMRH71 variants such as 951200601R for RHA equivalent qualification. Cross-referencing with ESA or CNES approved parts lists is recommended for mission-critical redundancy planning.