
32-bit ARM Cortex-M4 MCU, 120MHz, 2MB Flash, 640KB RAM, 115 I/O, 144-pin PQFP
Ultra-low-power with FPU Arm Cortex-M4 MCU 80 MHz with 128 Kbytes of Flash memory, USB
Ultra-low-power Arm Cortex-M0+ MCU with 192-Kbytes of Flash memory, 32 MHz CPU

Ultra-low-power with FPU Arm Cortex-M4 MCU 80 MHz with 256 Kbytes of Flash memory, LCD, USB, AES-256, DFSDM