The STM32F103VDT6: 32-bit ARM Cortex-M3 MCU from ST's STM32F1 series, clocked at 72 MHz with 384 KB Flash and 64 KB SRAM.
Where this MCU fits
Supply range 2 V to 3.6 V. Internal oscillator reduces external components.
72 MHz — the speed that matters for your loop
72 MHz core. 12-bit ADC array (16 channels) and dual 12-bit DAC cover analog I/O.
