Microchip Radiation Tolerant

Radiation Tolerant

Microchip has over 30 years of experience with creating integrated solutions for the aerospace industry. The new Rad Tolerant family uses Microchip AVR®, SMART ARM® and dsPIC widely deployed MCUs to produce Aerospace devices using proven and industry-leading technology (core and peripherals). Rad Tolerant devices are more robust against all radiations effects (neutrons, heavy ions and protons) to insure latch up immunity and non-destruction in critical environment. Compatible with the Microchip Studio development platform and commercial evaluation kits, the Rad Tolerant devices make product ramp up easy while lowering BOM and time-to-market.

Key Applications
Space 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)
Other Applications
Critical avionics in flight subsystems
Military & defense high reliability operations
Nuclear & medical products
Harsh environment exposed to radiations

Radiation Tolerant
Key Features
Benefit from the full Microchip ecosystem to ease the development phase
Same pinout distribution as the commercial device, enabling use of dual-footprint PCB
Latch up immune with SEL LET>60 Mev, SEU and TID performances characterization by functional blocks
Ceramic Hermetic Package - Radiation performance improvement compared to industrial, commercial, or automotive version.
Space grade quality flow
Full wafer lot traceability
Space screening
Space qualification
Plastic high reliability quality flow
Full wafer lot traceability
Full temperature range screening

Cost Effective Solutions

Most space applications are for LEO orbit missions, where the level of radiation performance is less demanding than 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, ARM and dsPIC devices with radiation performance improvement and quality flows 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.


Microchip Series Temperature Range (deg C) CPU SPI Max I/O Pins ADC Speed (ksps) Pin Count Packages Datasheet
Microchip Series Temperature Range (deg C) CPU SPI Max I/O Pins ADC Speed (ksps) Pin Count Packages Datasheet
ATmegaS128 -55 to 125 Rad Tol 8-bit AVR 1 53 15 64 64/TQFP
ATMEGAS64 -55 to 125 Rad Tol 8-bit AVR 1 27 125 32 Please call for package information
ATmegaS64M1 -55 to 125 Rad Tol 8-bit AVR 1 27 125 32 32/TQFP
MCP37D31RT -55 to 125 0 0 0 0 121/SIP
SAMV71Q21RT -55 to 125 Rad Tol 32-bit ARM 2 114 1700 144 144/LQFP
SAM3X8ERT 0 to 0 Rad Tol 32-bit ARM 0 0 0 0 144/LQFP
VSC8540RT 0 to 0 Rad Tol Ethernet Phy 0 0 0 0 Please call for package information
VSC8541RT 0 to 0 Rad Tol Ethernet Phy 0 0 0 0 Please call for package information