Cortex-M4 at 170 MHz — what it buys you in a mixed-signal control loop
The 18-channel 12-bit ADC and four 12-bit DAC channels let you close current and voltage loops without an external analog front-end, which is the main reason this part gets picked over a general-purpose Cortex-M3 for digital power and servo drives.
Supply range and brown-out — one less supervisor IC
The built-in brown-out detect and POR eliminate the external reset supervisor for most designs. If your rail dips during a cold-crank or battery sag, the BOR holds the core in reset until the supply recovers cleanly.
Package and thermal pad — layout notes for the 48-UFQFN
Housed in a 48-UFQFN with exposed pad (7x7 mm body), the part is surface-mount only. Without that via stitch, junction temperature climbs faster than the 85°C ambient spec allows at high core load.
For a design starting today, this part carries no imminent obsolescence risk. The base product number STM32G441 covers a range of Flash and package options, so a density or footprint migration stays within the same family if needed later.