RXv3 core at 120 MHz — throughput for deterministic control
The R5F56609CDFB#30 is a 32-bit microcontroller from the Renesas RX600 series, built around the RXv3 CPU core running at 120 MHz. This places it in the mid-to-high performance tier of the RX family, suitable for motor-drive control loops, multi-axis robotics, and industrial communication gateways that require deterministic interrupt response. The 1 MB on-chip flash memory (program memory type FLASH) paired with 128 KB RAM and a separate 32 KB EEPROM block provides enough headroom for a full RTOS, communication stacks (CAN, Ethernet via EBI/EMI), and field-upgradeable firmware without external memory in many designs.
Peripheral set and analog front-end
The integrated data converters include a 24-channel 12-bit ADC and a dual 12-bit DAC — enough analog input channels to sample multiple current-sense resistors and thermistors in a motor-drive application without an external multiplexer. The dual DAC can generate two independent analog setpoints or reference voltages. Connectivity options cover CANbus (for industrial fieldbus or vehicle networks), I²C and SPI (for local sensor hubs or external memory), SCI (UART for debug or RS-232/485), and LINbus (for automotive subnets). The EBI/EMI interface allows glueless connection to external SRAM, NOR flash, or an FPGA over a parallel bus. On-chip peripherals include DMA (for memory-to-peripheral transfers without CPU load), LVD (low-voltage detect for brown-out supervision), POR (power-on reset), PWM (for motor or LED drive), and WDT (watchdog timer for fail-safe operation). The oscillator type supports both external crystal and internal RC oscillator, reducing BOM count in cost-sensitive designs.
Lifecycle and compliance status
RoHS3 compliant (2011/65/EU + 2015/863), with no exemption expiry concern for EU-market shipments. The device is supplied in tray packaging, standard for 144-LQFP devices in prototype and low-to-medium volume production.