120 MHz RXv3 core with 2 MB Flash — firmware fit and peripheral set
The Renesas R5F566NDDDFP#30 is a 32-bit single-core MCU from the RX66N family, built around the RXv3 CPU core running at 120 MHz. It carries 2 MB of program Flash and 1 MB of SRAM, plus 32 KB of data Flash emulating EEPROM — enough headroom for a real-time control stack with Ethernet and CAN stacks loaded without external memory. The 78 GPIOs are mapped across a 100-LQFP package; the 22-channel 12-bit ADC and single 12-bit DAC handle sensor acquisition and analog output on the same die.
Connectivity and peripherals for industrial gateway and motor control
The peripheral list is built for a node that talks to the outside world: Ethernet MAC, CAN (2.0B), USB OTG, QSPI, multiple SCI/UART and I²C/SPI channels, plus an EBI/EMI bus for external memory or FPGA glue. DMA and PWM channels handle the real-time data movement and motor-timer waveforms without CPU intervention. The internal oscillator saves an external crystal if the application tolerates its accuracy, but the clock tree accepts an external resonator when tighter timing is needed.
Industrial temperature range and supply voltage
Rated for -40°C to 85°C ambient. Supply range is 2.7 V to 3.6 V, single rail.
Lifecycle and sourcing posture
The RX66N series is a current-generation Renesas platform; new designs can commit to this order code without near-term obsolescence risk. ROHS3 compliant.