Renesas R5F56604FDFB#10

Overview

R5F56604FDFB#10 from Renesas is a 32-bit RXv3 microcontroller operating at up to 120 MHz, featuring 1 MB code flash, 128 KB SRAM, 32 KB 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 gateways, and IEC 60730-compliant appliance controllers.

For engineers reviewing the R5F56604FDFB#10 datasheet, R5F56604FDFB#10 pinout, R5F56604FDFB#10 application, or R5F56604FDFB#10 equivalent, key selection criteria include 144-pin LFQFP package compatibility, 120-MHz deterministic timing for safety-critical firmware, integrated CAN FD for automotive-grade diagnostics, and hardware-accelerated CRC/MPU/ELC features enabling functional safety certification.

Technical Context

The R5F56604FDFB#10 implements the RXv3 CPU core with single-cycle instruction execution, IEEE 754-compliant FPU, 16 register banks for fast context switching, and memory protection unit (MPU) supporting eight configurable regions down to 16-byte granularity. It integrates Trusted Memory (TM) for secure code execution and register write protection to prevent unintended overwrites during fault conditions.

Its clock system combines an 8–24 MHz external main oscillator, 32.768 kHz sub-clock for RTC, and selectable 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), and ADCLK (60 MHz). The ELC enables 83 internal event signals to trigger peripheral actions without CPU intervention - critical for low-latency sensor-to-actuator response in real-time control loops.

Key Specifications

Pinout & Package

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

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F56605FDFB#10, the R5F56604FDFB#10 provides double the code flash capacity for complex protocol stacks or OTA update partitions; versus R5F566T5FDFB#10, it omits the TFU but delivers identical real-time control latency for non-trigonometric workloads - making it optimal for gateway and appliance applications where flash density and safety certification outweigh specialized math acceleration.

Availability

R5F56604FDFB#10 is available at Aetrix Electronics and suitable for industrial motor control, smart building gateways, and IEC 60730-compliant appliance controllers requiring stable component supply across extended production lifecycles.

Supply support for R5F56604FDFB#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 Japanese semiconductor manufacturer specializing in microcontrollers, analog, power, and SoC solutions for industrial, automotive, and infrastructure markets.

The RX660 Group - including the R5F56604FDFB#10 - was designed for real-time industrial control applications demanding functional safety, deterministic timing, and multi-protocol connectivity without external co-processors or glue logic.

FAQ

What is the maximum operating frequency and core architecture of the R5F56604FDFB#10?

The R5F56604FDFB#10 operates at a maximum frequency of 120 MHz using the 32-bit RXv3 CPU core. It delivers 709 CoreMark performance and includes a single-precision IEEE 754 floating-point unit, 16 register banks for fast context switching, and support for little-endian or big-endian data arrangement. Its instruction set comprises 113 opcodes, including 11 floating-point and 23 DSP instructions - all confirmed in the R01DS0393EJ0100 datasheet Rev.1.00.

Does the R5F56604FDFB#10 support CAN FD, and what standards does it comply with?

Yes, the R5F56604FDFB#10 integrates one CAN FD module compliant with ISO 11898-1:2015, supporting both standard and extended frames at data rates up to 5 Mbps. It includes built-in message filtering, FIFO buffering, and error confinement - verified in Section 1.1 and Table 1.1 of the R01DS0393EJ0100 datasheet. This enables direct integration into automotive diagnostics and industrial fieldbus systems without external transceivers beyond physical layer components.

What package type and pin count does the R5F56604FDFB#10 use?

The R5F56604FDFB#10 uses the PLQP0144KA-B package: a 144-pin Low-profile Quad Flat Package measuring 20 × 20 mm with 0.5 mm pitch. It provides 130 general-purpose I/O pins, four 5-V tolerant inputs, and dedicated pins for MOSCXT, SOSCIN/OUT, CAN FD, and multiple SCI/RIIC/RSPId interfaces - as specified in Table 1.2 and Figure 1.1 of the R01DS0393EJ0100 datasheet.

How does the R5F56604FDFB#10 support IEC 60730 functional safety compliance?

The R5F56604FDFB#10 includes hardware features required for IEC 60730 Class B certification: oscillation-stop detection, ADC self-diagnosis and analog input disconnection detection, clock frequency accuracy measurement circuit (CAC), independent watchdog timer (IWDT) with windowing, memory protection unit (MPU), register write protection, and CRC calculator (CRCA). These are documented in Section 1.1 "Useful functions for IEC60730 compliance" of the R01DS0393EJ0100 datasheet.

What are the memory resources available on the R5F56604FDFB#10?

The R5F56604FDFB#10 integrates 1 MB of on-chip code flash memory (accessible without wait states at 120 MHz), 32 KB of reprogrammable data flash (rated for 100,000 erase/write cycles), and 128 KB of SRAM (also no-wait at 120 MHz). It also includes a 12-byte unique ID and supports background programming/erasing operations - all confirmed in Tables 1.1 and 1.2 of the R01DS0393EJ0100 datasheet Rev.1.00.