Radiation tolerant, highly reliable, small footprint, 2Mb non-volatile Serial Peripheral Interface (SPI) F-RAM for New Space Our radiation tolerant, 2Mb, SPI Ferroelectric RAM (F-RAM) is one of the industry’s lowest power, non-volatile memory solutions that is guaranteed to 50 Krad (Si) TID and virtually unlimited endurance. Infineon’s instant non-volatile write technology and greater than 100-year data retention provides the highest reliability for new space applications.