32-bit ARM Cortex-M3 MCU, 256KB Flash, 32MHz, USB, LQFP
32-bit ARM Cortex-M3 MCU, 256KB Flash, 32MHz, USB, 37 I/O, S-PQFP-G48
Ultra-low-power Arm Cortex-M3 MCU with 256 Kbytes of Flash memory, 32 MHz CPU, USB, 2xOp-amp
