32-bit Radiation-Tolerant MCU

17 May 2024

The SAMD21RT microcontroller unit (MCU) from Microchip is based on an Arm Cortex-M0+ processing core that can run at a 48MHz operational speeds.

It has 128kBytes of flash and 16kBytes of SRAM memory reserve, plus multi-channel data conversion capabilities. USB 2.0, I2C and SPI interfacing are all included. Highly suited to use in space applications, the device displays strong resilience to radiation exposure. It can cope with a 50kRad total ionising dose (TID) and exhibits a 78MeV.cm²/mg single event latch-up (SEL) immunity. A working temperature range of -40°C to 125°C is supported. 

“The advantage of working with Microchip is that we have the history, knowledge and capability to do the design and testing in house for our radiation-tolerant and radiation-hardened devices,” notes Bob Vampola, Microchip’s VP for Aerospace & Defence. “We continue to bring newer technologies like Ethernet, AI and ML, which have evolved in the commercial and industrial markets, and improve them with radiation performance to meet the needs of space missions. We also continue to provide higher computing performance and integration of newer technologies into smaller packages, reducing weight and size.”

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