Proton and Heavy Ion induced SELs in the Xilinx XC95108 CPLD

Single Event Latch Ups (SELs) in the XC95108 Complex Programmable Logic Controller (CPLD) have been studied with protons at 60 MeV and 230 MeV and with low and high penetrating ions at LETs from 3 to 34 MeVcm 2/mg. The part was also exposed to a (neutron dominated) High Energy Physics radiation field where the highest possible proton and neutron energy is several GeVs. The SEL threshold LET is as low as 7.2 MeV cm2/mg. Moreover, the part is sensitive to functional interrupts which are characterized by a continuous error stream and a stepwise increase of the current consumption.