Rad-hard Arm Cortex-M7 MCUs for space

Rad-hard Arm Cortex-M7 MCUs for space

“The introduction of Arm technologies for space applications opens up new perspectives by enabling the use of the same ecosystem well in place in the consumer and industrial sectors,” said CNES component specialist David Dangla. “The SAMRH71 is the first Cortex M7-based rad-hard microprocessor. It offers developers a single-core processor and the performance of an advanced architecture without having to implement heavy mitigation techniques as is required for non-space components.”

  • MPU SAMRH71 offers more than 200 Dhrystone MIPS (DMIPS) and interfaces such as SpaceWire, MIL-STD-1553, CAN FD and Ethernet with IEEE 1588 generalized precision time protocol (gPTP).
    The device is ESCC-qualified with support from CNES and compliant with MIL standard Class V and Q high-reliability grades.
    Ceramic packaged devices are available with QMLQ (SAMRH71F20C-7GB-MQ) and QMLV (SAMRH71F20C-7GB-SV) equivalent qualification levels, plus there is a plastic BGA plastic version.
  • MCU SAMRH707 has a 12bit ADC and a DAC alongside a >100DMIPS processor with DSP capability, embedded SRAM and embedded flash. Communication interfaces include SpaceWire, MIL-STD-1553 and CAN FD.
    It is sampling in a CQFP164 ceramic package as SAMRH707F18A-DRB-E.

“Integration of digital-to-analogue and analogue-to-digital converters together with a powerful processor core is a key requirement for addressing challenges in aerospace applications,” according to ESA on-board computer engineer Kostas Marinis.

For developers, each IC has an evaluation board (SAMRH71F20-EK and SAMRH707F18-EK) and is covered by Microchip’s MPLAB Harmony v3.0 tool suite. There are also third-party software services for space applications, added the company.