HICs HIC Core Freq. RAM ROM USB k20dx M4 48 MHz 16 KB 128 KB FS k26f M4 120 MHz 256 KB 256 KB HS kl26z M0+ 48 Mhz 16 KB 128 KB FS kl27z M0+ 48 Mhz 32 KB 128 KB FS lpc11u35 M0 48 Mhz 12 KB 64 KB FS lpc4322 M4 96 MHz 256 KB 256 KB HS lpc55xx M33 150 MHz 272 KB 320 KB HS max32625 M4 96 MHz 160 KB 512 KB FS nrf52820 M4 64 MHz 32 KB 256 KB FS sam3u2c M3 96 MHz 32 KB 128 KB HS stm32f103xb M3 72 Mhz 20 KB 128 KB FS