72 MHz Cortex-M3 with 768 KB Flash — what the memory and speed mean for your firmware budget
The STM32F103VFT6TR: The 72 MHz ARM Cortex-M3 core delivers about 1.25 DMIPS/MHz, so the raw throughput is roughly 90 DMIPS — enough for motor-control loops running at 10-20 kHz or for parsing CAN and USB frames without a dedicated co-processor. 768 KB of on-chip Flash and 96 KB of SRAM leave headroom for a real-time OS, a TCP/IP stack, and application code; the 96 KB RAM can buffer several 1 KB CAN messages or a full USB frame without external memory.
Peripheral set and deployment context — motor control, CAN, USB, and industrial temperature range
On-chip peripherals include DMA, motor-control PWM, a temperature sensor, and a watchdog timer — the DMA can transfer ADC results to RAM without CPU intervention, freeing the core for control-law calculations.