48 MHz Cortex-M0 with 128 KB Flash — the BOM-fit tier
This is the mid-density, mid-pin-count sweet spot in the F0 line — enough memory for a real application stack without the cost or footprint of the larger F1 or F4 parts.
Peripheral set — CAN, USB, and analog on one die
The DMA engine keeps the CPU from stalling on peripheral transfers, which matters when the 48 MHz core is servicing a USB or CAN frame.
For a production BOM, this is the safe pick — you are not chasing surplus inventory or qualifying a replacement mid-run. The base product number is STM32F072, so any PCN or errata updates apply across the family.