RXv3 core at 120 MHz — what it means for the control loop
The Renesas R5F56604DGFB#30 is a 32-bit MCU built around the RXv3 core, clocked at 120 MHz. That clock rate, combined with a single-cycle multiply and hardware divide, keeps PID loops and commutation algorithms deterministic without an external DSP. The 512 KB Flash and 128 KB RAM are sized for a single firmware image with room for a bootloader and moderate data logging; the 32 KB EEPROM on-chip eliminates an external serial EEPROM for calibration constants or fault logs. With 131 I/O and a 144-LQFP package, this part targets motor drives, industrial PLC I/O banks, and inverter control boards where pin count and temperature range (-40°C to 105°C) match the environment.
Lifecycle and compliance — no obsolescence risk
Renesas lists this part as Active with RoHS3 compliance. No NRND or last-time-buy notice is on record.
Sourcing this part
The R5F56604DGFB#30 is sourced through independent distribution. For dual-sourcing resilience, the R5F56604DGFP#30 (100-pin, 89 I/O) is a validated alternative if your design can tolerate the reduced I/O count.