72 MHz Cortex-M4 with mixed-signal muscle
The STM32F373R8T6 provides 52 I/O in a 64-LQFP package.
Three 16-bit sigma-delta ADCs — the real differentiator
What sets this part apart from the plain Cortex-M4 crowd is the data-converter array: three 16-bit sigma-delta ADCs, one 12-bit SAR ADC, and three 12-bit DACs. The sigma-delta channels are the play for precision current sensing, strain-gauge readout, or audio capture where noise rejection matters more than conversion speed. The 12-bit SAR ADC handles the faster multiplexed scans — thermistor banks or voltage monitoring. The three DACs can generate analog setpoints or bias voltages without external converters.
Industrial temperature range and serial connectivity
The internal oscillator trims the BOM by one crystal for non-critical clocking, though USB timing still wants an external resonator.
The base product number STM32F373 covers a density family, so firmware portability across Flash/RAM options is straightforward within the same package.