
Ultra-low-power Arm Cortex-M3 MCU with 256 Kbytes of Flash memory, 32 MHz CPU, USB, 3xOp-amp

32-bit ARM Microcontroller, 256KB FLASH, 32KB RAM, 83 I/Os, 9 Timers
Ultra-low-power Arm Cortex-M3 MCU with 128 Kbytes of Flash memory, 32 MHz CPU, USB

Ultra-low-power Arm Cortex-M3 MCU with 256 Kbytes of Flash memory, 32 MHz CPU, USB, 3xOp-amp