170 MHz Cortex-M4F with math accelerator — what the core speed buys you
The STM32G474VBT6: The single-cycle multiplier and hardware divide keep the FIR filter taps from stealing PWM update slots.
42 ADC channels and 7 DACs — analog front-end for multi-phase sensing
The 42-channel 12-bit ADC array and seven 12-bit DACs are what separate this part from a general-purpose MCU. Each ADC can sample simultaneously with its own injected channel, letting you read three phase currents plus a DC-link voltage in a single trigger event. The DACs feed analog reference levels or offset trim voltages without external op-amp stages. For a three-phase motor drive with resolver feedback, you can dedicate one ADC per phase current and still have channels left for temperature and bus voltage monitoring.
The 86 I/O in a 100-LQFP package gives enough pins to map a parallel display bus alongside encoder inputs and CAN transceiver control lines without multiplexing.
Active lifecycle — no end-of-life clock ticking
The base product number STM32G474 shares the same die and peripheral set across the VBT6 (128 KB), RBT6 (128 KB), and higher-density siblings — so if firmware grows, you can step up within the same pinout without a board spin.
Brown-out detect and POR are baked in, so a simple RC reset on the NRST pin is sufficient for most designs.