The STM32F301 are mixed-signal MCUs with an ARM Cortex-M4 core (with FPU and DSP instructions) running at 72 megahertz.
These are entry-level devices in the STM32F30x series.
The devices are equipped with:
The STM32F303 MCUs operate from 2 to 3.6 Volts
Memory ranges from 32 to 64 Kbytes and packages from 32 to 64 pins.
Temperature range from -40 to 85 degrees Celsius or from -40 to 105 degrees Celsius (with a junction temperature tested for 125 degrees Celsius).