The SAM3X8ERT from Microchip Technology is a Space Qualified Microcontroller with Clock Rate 32.76 kHz to 20 MHz, Operating Frequency 84 MHz, Internal RAM Memory SRAM : 100 kB, Flash Memory 128 to 512 kB, Internal ROM Memory 16 kB. Tags: Surface Mount. More details for SAM3X8ERT can be seen below.