240 MHz Cortex-M33 for real-time motor control
The R7FA6T2AD3CFM#BA0: The 18-channel 12-bit SAR ADC can sample three-phase currents and DC-bus voltage simultaneously with the PWM timer trigger, keeping the current-loop latency under 2 µs at 240 MHz. The four 12-bit DACs provide analog outputs for oscilloscope monitoring or analog setpoint injection during commissioning.
Memory partition and bootloader planning
The 512 KB flash is organized as 512 x 8-bit sectors — budget 45 ms typical per sector erase for field-update windows. The 16 KB on-chip EEPROM (emulated or dedicated) stores calibration constants and fault logs without wearing the main flash. The LVD and POR peripherals handle brown-out detection without an external supervisor.
Package footprint and supply routing
64-LQFP (10x10 mm body, 0.50 mm pitch) — the 51 I/O pins break out to two or four inner layers on a standard 4-layer board.