Flash and RAM sizing for control firmware
The 64 KB program memory is enough for a field-oriented control (FOC) stack plus communication stacks (CANopen, Modbus). The 16 KB SRAM leaves room for a couple of 256-point lookup tables and a modest RTOS heap. If your application needs more headroom for data logging or a larger control state machine, the STM32F303 siblings with 256 KB Flash are the natural step up.
This removes the last-time-buy risk for production programs.
Pin-compatible family and second-source considerations
If your thermal environment stays below 85°C, the T6 variant is a drop-in alternative for dual-sourcing. The STM32F303C8T7 in the same package adds a second 12-bit ADC and more timer channels, but the pinout is identical, so a board designed for the F302 can accept the F303 with a firmware change.