The STM32F303R8T6: ARM Cortex-M4 core runs at 72 MHz with hardware floating-point. 51 I/O lines in a 64-LQFP package.
15-channel ADC and one DAC — analog front-end integration
Fifteen analog inputs are enough to read three-phase currents plus a handful of voltage and temperature sensors without an external mux. The single DAC can serve as a reference or an analog setpoint. If your design needs more than one analog output channel, you will need an external DAC or a different STM32F3 variant.
Connectivity and peripherals for fieldbus and sensor networks
The built-in DMA, I²S, POR, PWM, and WDT peripherals cover the common control and audio-interface needs without external glue logic.
Package and footprint — 64-LQFP, hand-solderable
Housed in a 64-LQFP with a 10x10 mm body and 0.5 mm pitch, this is a hand-solderable package — no hot-air station required for rework. The exposed pad (if present on the LQFP variant) needs a via stitch under the package for thermal relief if you push the I/O current. Surface-mount only; no socket option unless you add a production socket.