Renesas R5F571MFCDFB#10

Overview

R5F571MFCDFB#10 from Renesas is a 32-bit RXv2 core microcontroller operating at up to 240 MHz (480 DMIPS), featuring 4 MB on-chip code flash, 512 KB SRAM (including 32 KB ECC RAM), IEEE 1588-compliant dual Ethernet MAC, high-speed USB 2.0 with battery charging, and dual 12-bit A/D converters (29 total channels). It targets industrial control, networked HMI, and real-time gateway applications requiring deterministic timing and functional safety support.

For engineers reviewing the R5F571MFCDFB#10 datasheet, R5F571MFCDFB#10 pinout, R5F571MFCDFB#10 application, or R5F571MFCDFB#10 equivalent, this MCU delivers verified real-time performance via its 240-MHz CPU, hardware FPU, integrated PTP controller, dual CAN interfaces, and IEC60730-ready diagnostics - critical for time-sensitive embedded systems with Ethernet/USB connectivity and analog sensing.

Technical Context

The R5F571MFCDFB#10 implements the RXv2 CISC Harvard architecture with 5-stage pipeline, variable-length instructions, and memory protection unit (MPU). Its clock system supports external crystal (8–24 MHz) or internal PLL, with independent domain clocks: ICLK up to 240 MHz, PCLKA up to 120 MHz (for Ethernet, USB, AES), and PCLKB up to 60 MHz (for timers, ADC, UART).

It integrates dual Ethernet controllers (ETHERC) with dedicated EPTPC for IEEE 1588 timestamping and EDMAC for descriptor-based DMA, plus USBAa (high-speed USB 2.0 host/function with battery charging) and USBb (full-speed USB). The device includes three CAN modules (ISO 11898-1 compliant), nine SCI interfaces (with LIN/Smart Card modes), and two SD/MMC interfaces - all coordinated via Event Link Controller (ELC) for CPU-offload event chaining.

Key Specifications

Pinout & Package

Package: PLQP0176KB-A (176-pin LFBGA, 24 × 24 mm, 0.5-mm pitch). Pin count and I/O configuration match full-featured RX71M variant: 127 general-purpose I/O pins with 5-V tolerance on 19 pins, open-drain capability, and programmable pull-up resistors.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F571MFCDFB#10, the R5F571MLDFB#10 offers identical pinout and peripheral set at lower memory density, while the R5F566TEADFP#30 trades networking capability for higher PWM resolution - making R5F571MFCDFB#10 the sole option supporting concurrent IEEE 1588, dual CAN, and high-speed USB in a single 176-pin package.

Availability

R5F571MFCDFB#10 is available at Aetrix Electronics and suitable for industrial gateways, smart HMI systems, and networked energy meters requiring stable component supply, long-term lifecycle assurance, and traceable sourcing for safety-critical designs.

Supply support for R5F571MFCDFB#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, and power management solutions for industrial, automotive, and enterprise applications.

The RX71M Group is designed for real-time industrial connectivity - integrating dual Ethernet, high-speed USB, multiple CAN, and functional safety features to serve as the central processing unit in protocol-agnostic gateways and intelligent edge controllers.

FAQ

What is the maximum operating frequency and DMIPS rating of the R5F571MFCDFB#10?

The R5F571MFCDFB#10 operates at a maximum frequency of 240 MHz and delivers 480 DMIPS of processing performance. This is achieved through its optimized RXv2 CPU core with 5-stage pipeline, single-cycle 32-bit multiply, and hardware floating-point unit compliant with IEEE 754 single-precision standard - enabling real-time execution of complex control algorithms and protocol stacks without external co-processors.

Does the R5F571MFCDFB#10 support IEEE 1588 Precision Time Protocol?

Yes, the R5F571MFCDFB#10 includes a dedicated IEEE 1588-compliant PTP controller (EPTPC) tightly coupled to both Ethernet MACs. It provides hardware timestamping of ingress/egress frames with sub-microsecond resolution, supports PTP master/slave roles, and enables synchronization across distributed nodes in industrial automation networks - all without CPU intervention via the Event Link Controller.

How much on-chip memory does the R5F571MFCDFB#10 include?

The R5F571MFCDFB#10 integrates 4 MB of code flash memory with background programming capability, 512 KB of SRAM (256 KB accessible at full 240 MHz speed), 32 KB of ECC-protected RAM (SEC-DED), and 8 KB of battery-backed standby RAM. This memory architecture supports secure boot, firmware updates, real-time data buffering, and fail-safe state retention during power loss.

What communication interfaces are available on the R5F571MFCDFB#10?

The R5F571MFCDFB#10 provides dual IEEE 802.3 10/100 Mbps Ethernet MACs, high-speed USB 2.0 host/function with battery charging (USBAa), full-speed USB 2.0 host/function (USBb), three ISO 11898-1 CAN modules (32 mailboxes each), nine SCI interfaces (with LIN/Smart Card modes), four SCIFA UARTs with 16-byte FIFOs, two I2C buses (up to 1 Mbps), two RSPI, one QSPI, two SSI audio interfaces, SDHI, and MMCIF - enabling comprehensive multi-protocol connectivity.

Is the R5F571MFCDFB#10 qualified for functional safety standards like IEC60730?

Yes, the R5F571MFCDFB#10 includes multiple IEC60730 Class B compliance features: oscillation-stop detection, hardware CRC calculator, independent watchdog timer (IWDTa) with window function, A/D converter self-diagnostic, register write protection, and memory protection unit (MPU). These capabilities reduce software validation effort and support certification of household and industrial appliances requiring fail-safe behavior.