What this MCU brings to a control board
The STM32F373CCT7 is a 32-bit ARM Cortex-M4 MCU from STMicroelectronics' STM32F3 series, clocked at 72 MHz with 256 KB of Flash program memory and 32K x 8 of SRAM. What sets it apart from the general-purpose F1 or F0 lines is the mixed-signal front end: three 16-bit sigma-delta ADCs, one 12-bit SAR ADC, and three 12-bit DACs — enough to handle multi-channel sensor conditioning, current/voltage sensing in motor drives, or precision metering without an external converter. The 48-LQFP package keeps board area tight, and the -40 to 105 °C rating means it can live in an outdoor telecom cabinet or an engine-bay controller.
72 MHz — what it buys you in a control loop
Mixed-signal converters: the real differentiator
Three 16-bit sigma-delta ADCs are the headline feature. They are designed for simultaneous sampling of three-phase currents in a motor drive or three independent sensor channels. The 12-bit SAR ADC handles a fourth channel at higher speed. The three 12-bit DACs can output analog setpoints or bias voltages without an external DAC. On the connectivity side: CANbus, I²C, SPI, UART/USART, USB, and IrDA — enough for a CANopen node with a USB service port.