Radiation tolerant, highly reliable, 256 Kb non-volatile serial (I2C) F-RAM for New Space Our radiation tolerant 256 Kb 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 121-year data retention provides the highest reliability for new space applications.