ARM Cortex-M4F at 80 MHz — real-time control headroom
The 128 KB Flash and 32K x 8 RAM give enough room for a moderate control loop with a USB or CAN stack, while the 2K x 8 EEPROM holds calibration constants or boot parameters without wearing the Flash. The 49 GPIOs and the 12-channel 12-bit ADC cover a typical sensor-fusion or motor-control I/O map without external muxing.
