Microchip Technology Inc

Rad Tolerant Devices

Microchip has over 30 years of experience with creating integrated solutions for the aerospace industry. The new Rad Tolerant family uses Microchip AVR® and SMART ARM® widely deployed MCUs to produce Aerospace devices using proven and industry-leading technology (core and peripherals). Compatible with the Atmel Studio development platform and commercial evaluation kits, the Rad Tolerant devices make product ramp up easy while lowering BOM and time-to-market.

Rad Tolerant ATmegaS128 Block Diagram

Key Applications

  • Remote Terminal Units (RTUs)
  • Propulsion system control
  • Sensor bus control
  • Robotics applications
  • Mechanisms and motor control
  • Power control
  • OBC for nano-satellites
  • Thermal control
  • Angular sensor
  • Sun sensor
  • Simple instrumentation (particle detector, radiation monitor)

Key Features

  • Benefit from the full Microchip ecosystem to ease the development phase
  • Ceramic Hermetic Package - Radiation performance improvement compare to industrial, commercial or automotive version.
    • Latch up immune with SEL LET>60 Mev, SEU and TID performances characterization
    • Space grade quality flow
      • Full wafer lot traceability
      • Space screening
      • Space qualification

Cost Effective Solutions

Most space applications are for LEO orbit missions where the level of radiation performance is less demanding than for GEO and MEO missions. Space equipment manufacturers are looking for cost effective solutions which limits the maximum development investment in order to reduce risk and time to market. The new Rad Tolerant devices from Microchip are the answer to this increasing demand.

Microchip capitalizes on its long Aerospace market experience and strong MCU/MPU portfolio to bring to the space industry AVR and ARM devices with radiation performance improvement, a quality flow according to space grade and hermetic packages.

These Rad Tolerant solutions can also target more general aerospace applications like class A and B avionic critical cases where single event radiation impact is a key issue. A non-hermetic, plastic version can be proposed in this kind of application with the appropriate quality flow.

Tabs / Aerospace / Rad Tolerant
Other Documents
Title Date Published Type Size
ATmegaS128 Complete
Radiation-Tolerant 8-bit AVR Microcontroller

09/2016 PDF 6.06 MB

Application Notes

Title Date Published

ATmega128A-STK600 Hardware and Software Getting Started
This document guides you step by step to setup the hardware and software to program and run your first code with the ATmega128A device. Includes source code.

ATmegaS128-Safety Management for Space Applications
This document guides you through the main characteristics of the ATmegaS128 that require attention prior to development of a safe space application.

ATmegaS128-STK600 Hardware and Software Getting Started
This document guides you step by step to setup the hardware and software to program and run your first code with the ATmega128 device. Includes source code.

Hardware Tools Guide for ATmegaS128
This document details the hardware needed to evaluate the ATmega128 in its industrial version (ATmega128A) or in its space version (ATmegaS128).

Brochures and Flyers


Date Published




10/2015 PDF 661 KB
Aerospace Rad-Hard Integrated Circuits

06/2015 PDF 785 KB



Date Published



Aerospace Products Quality Flows
For Space, Avionic and Military Projects, production screenings and qualification are compliant either with ESCC 9000 or MIL-PRF-38535. Microchip is fully DSCC QML qualified for level Q (military) and V (space). Microchip is ESCC qualified for MH1RT asic's according to ESCC 2549000 (ESCC QML).
06/2014 PDF 157 KB