The CYT4BF from Infineon Technologies is a Space Qualified Microcontroller with Clock Rate 8 MHz, Operating Frequency 100 to 300 MHz, Internal RAM Memory SRAM : 1024 kB, Flash Memory Code : 8384 kB, Work : 256 kB, Internal ROM Memory 64 kB. Tags: Surface Mount. More details for CYT4BF can be seen below.