What this chip is and where it lands on the BOM
The STM32F100R6T6B: The 64-LQFP package gives you 51 I/O, plus a 16-channel 12-bit ADC and two 12-bit DACs on-chip, which can save a couple of external analog parts on a mixed-signal design.
For a field-service kit or a long-life industrial controller, this is the right kind of supply certainty.
