Renesas R5F56609FDFB#10

Overview

R5F56609FDFB#10 from Renesas is a 32-bit RXv3 core MCU operating at up to 120 MHz, featuring 1 Mbyte on-chip code flash, 128 Kbytes SRAM, 32 Kbytes data flash, CAN FD interface, 12-bit A/D and D/A converters, and real-time clock with sub-clock oscillator support - deployed in industrial motor control, building automation, and smart metering systems requiring deterministic timing and IEC 60730 compliance.

For engineers reviewing the R5F56609FDFB#10 datasheet, R5F56609FDFB#10 pinout, R5F56609FDFB#10 application, or R5F56609FDFB#10 equivalent, key selection criteria include 144-pin LFQFP package compatibility, 120-MHz real-time performance with FPU, integrated CAN FD for automotive-grade communication, dual 12-bit DACs usable as comparator references, and deep software standby mode with RTC persistence.

Technical Context

The R5F56609FDFB#10 implements the RXv3 CPU core with single-cycle instruction execution, IEEE 754-compliant single-precision FPU, and 16 register banks for fast context switching. It supports little-endian or big-endian data arrangement and includes a 32×32→64-bit multiplier and 32/32→32-bit divider.

Its clock system integrates main (8–24 MHz crystal), sub-clock (32.768 kHz), and on-chip oscillators (LOCO/HOCO/IWDT-dedicated), with independent PLL and frequency-division paths for ICLK (up to 120 MHz), PCLKA (120 MHz), PCLKB (60 MHz), PCLKD (60 MHz), FCLK (60 MHz), and BCLK (40 MHz) domains - enabling precise peripheral timing isolation.

Key Specifications

Pinout & Package

Package: PLQP0144KA-B - 144-pin Low-profile Quad Flat Package, 20 × 20 mm body, 0.5 mm lead pitch, exposed pad, RoHS compliant.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar 32-bit MCU applications.

Compared with R5F56609FDFB#10, R5F56608FDFB#10 reduces flash capacity without affecting speed or peripherals, while R5F566T9FDFB#10 maintains identical functionality with extended thermal qualification - enabling direct substitution in high-temp deployments without layout or firmware changes.

Availability

R5F56609FDFB#10 is available at Aetrix Electronics and suitable for industrial motor control, smart energy metering, and building automation gateway designs requiring stable component supply, long-term lifecycle assurance, and full IEC 60730 safety feature support.

Supply support for R5F56609FDFB#10 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Renesas Electronics Corporation is a global semiconductor leader specializing in microcontrollers, analog, power, and SoC solutions for industrial, automotive, and infrastructure markets.

The RX660 Group is designed for high-integrity industrial applications demanding real-time determinism, functional safety (IEC 60730), and rich connectivity - with R5F56609FDFB#10 targeting systems needing 120 MHz performance, CAN FD, and dual DACs in a 144-pin package.

FAQ

What is the maximum operating frequency and CoreMark score of the R5F56609FDFB#10?

The R5F56609FDFB#10 operates at a maximum frequency of 120 MHz and achieves 709 CoreMark in benchmark testing. This performance stems from its RXv3 CPU core architecture with single-cycle instruction execution, on-chip FPU, and zero-wait-state access to both 1 Mbyte code flash and 128 Kbytes SRAM - making R5F56609FDFB#10 suitable for computationally intensive real-time control tasks.

Does the R5F56609FDFB#10 support CAN FD, and what standard does it comply with?

Yes, the R5F56609FDFB#10 integrates one CAN FD module compliant with ISO 11898-1:2015, supporting both standard and extended frame formats. It enables data rates up to 5 Mbps in the flexible data-rate phase, with built-in message filtering, FIFO buffering, and error handling - allowing R5F56609FDFB#10 to serve as a robust communication node in industrial networks and automotive subsystems.

What analog peripherals are integrated into the R5F56609FDFB#10?

The R5F56609FDFB#10 integrates a 24-channel 12-bit S12ADH ADC (0.9 µs minimum conversion time), two 12-bit R12DAb DAC channels (0 V to AVCC0 output), and four CMPC analog comparators. The DAC outputs can serve as precision reference voltages for the comparators, and the ADC includes self-diagnostic and analog input disconnection detection - all critical for R5F56609FDFB#10's use in metrology and closed-loop control.

What low-power modes does the R5F56609FDFB#10 support, and which retain RTC operation?

The R5F56609FDFB#10 supports four low-power modes: Sleep, All-module Clock Stop, Software Standby, and Deep Software Standby. Only Deep Software Standby retains RTC operation - powered by the 32.768 kHz sub-clock oscillator - while disabling CPU, flash, SRAM, and most peripherals. This enables R5F56609FDFB#10 to maintain accurate timekeeping and wake on alarm with ultra-low current draw.

Is the R5F56609FDFB#10 qualified for functional safety standards like IEC 60730?

Yes, the R5F56609FDFB#10 includes hardware features specifically designed for IEC 60730 Class B compliance: oscillation-stop detection, clock frequency accuracy measurement circuit (CAC), independent watchdog timer (IWDTa) with window function, RAM test assist via DOC, CRCA, and register write protection. These capabilities are documented in the R01DS0393EJ0100 datasheet and enable R5F56609FDFB#10 to meet self-test and fault-detection requirements in safety-critical appliances and industrial controls.