Nanocontrollers characterization under radiation

Within the framework of the MICROSAT and ROSETTA projects, CNES (French National Agency) has characterized the behavior of 4 nanocontrollers under heavy ions, protons and total dose. These products are frequently used in industrial and commercial applications. They have been chosen for ROSETTA (S-band transmitter/receiver and TM/TC) and MICROSAT (OBC and payload management unit) for the following reasons : easy use, numerous I/Os; 12C link, USART, timer, ADC, internal RAM and PROM; low consumption (a few mA at 5 V); and low mass and dimension (SOIC 28). The aim of this work was to determine the best candidate for MICROSAT application within the whole market offer.