Renesas R5F571MFDDFB#V0

Overview

R5F571MFDDFB#V0 from Renesas is a 32-bit RXv2 microcontroller with 240 MHz max operating frequency, 4 MB on-chip code flash, 512 KB SRAM, IEEE 1588-compliant dual Ethernet MAC, and integrated high-speed USB 2.0 with battery charging - designed for industrial gateway and real-time edge control applications requiring deterministic timing, secure connectivity, and functional safety support.

For engineers reviewing the R5F571MFDDFB#V0 datasheet, R5F571MFDDFB#V0 pinout, R5F571MFDDFB#V0 application, or R5F571MFDDFB#V0 equivalent, key selection considerations include its 176-pin LFBGA package (PLQP0176KB-A), dual-channel Ethernet with PTP hardware timestamping, 240-MHz FPU-enabled real-time processing, and IEC60730-compliant self-test features including CRC, oscillation-stop detection, and A/D converter diagnostics.

Technical Context

The R5F571MFDDFB#V0 implements the RXv2 CPU core with Harvard architecture, 5-stage pipeline, and variable-length instructions enabling ultra-compact code density. It integrates dual Ethernet controllers (ETHERC) each with dedicated EDMAC channels and EPTPC hardware compliant with IEEE 1588-2008 for sub-microsecond time synchronization.

Its clock system combines external crystal support (8–24 MHz), internal HOCO (16/18/20 MHz), and PLL-based ICLK generation up to 240 MHz, while peripheral clocks (PCLKA/B/C/D) are independently configurable - PCLKA at up to 120 MHz for Ethernet, USB, and AES, and PCLKB at up to 60 MHz for timers and analog peripherals.

Key Specifications

Pinout & Package

Package: PLQP0176KB-A - 176-pin Low-Profile Fine-Pitch Ball Grid Array, 24 mm × 24 mm, 0.5 mm pitch, RoHS-compliant, lead-free.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar high-performance industrial MCU applications.

Compared with R5F571MFDDFB#V0, the R5F571MLDDFB#V0 reduces memory capacity without altering peripheral availability or timing performance, while the R5F572MFDDFB#V0 delivers higher compute throughput and advanced security at the cost of board-level compatibility - making the R5F571MFDDFB#V0 optimal for field-deployed systems requiring proven reliability and full memory headroom.

Availability

R5F571MFDDFB#V0 is available at Aetrix Electronics and suitable for industrial gateways, smart metering hubs, building automation controllers, and medical infusion pump designs requiring stable component supply, long-term lifecycle assurance, and traceable sourcing.

Supply support for R5F571MFDDFB#V0 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 automotive, industrial, and IoT markets.

The RX71M Group - including R5F571MFDDFB#V0 - was engineered for real-time industrial connectivity, combining deterministic Ethernet timing, functional safety features, and robust security acceleration in a single high-integration MCU platform.

FAQ

What is the maximum operating frequency and CPU architecture of the R5F571MFDDFB#V0?

The R5F571MFDDFB#V0 features a 32-bit RXv2 CPU core with a maximum operating frequency of 240 MHz, delivering 480 DMIPS and supporting IEEE-754 single-precision floating-point operations. Its CISC Harvard architecture includes a 5-stage pipeline and variable-length instructions for optimized code density and real-time determinism - essential for time-critical industrial control tasks executed by the R5F571MFDDFB#V0.

Does the R5F571MFDDFB#V0 support IEEE 1588 Precision Time Protocol?

Yes, the R5F571MFDDFB#V0 integrates a dedicated IEEE 1588-compliant PTP controller (EPTPCa) linked directly to both Ethernet MAC channels. It provides hardware timestamping with sub-100 ns resolution on frame ingress and egress, enabling precise time synchronization without CPU overhead - a core capability of the R5F571MFDDFB#V0 for industrial automation and test equipment.

What package type and pin count does the R5F571MFDDFB#V0 use?

The R5F571MFDDFB#V0 uses a 176-pin Low-Profile Fine-Pitch Ball Grid Array (LFBGA) package designated PLQP0176KB-A, measuring 24 mm × 24 mm with 0.5 mm pitch. This package supports all peripheral functions including dual Ethernet, high-speed USB, and 127 general-purpose I/O pins - confirming the physical implementation of the R5F571MFDDFB#V0 for high-density industrial PCB layouts.

How much on-chip memory does the R5F571MFDDFB#V0 include?

The R5F571MFDDFB#V0 includes 4 MB of on-chip code flash memory (with no wait states up to 120 MHz), 64 KB of reprogrammable data flash (rated for 100,000 write/erase cycles), 512 KB of SRAM (256 KB zero-wait at 240 MHz), 32 KB of ECC-protected RAM, and 8 KB of battery-backed standby RAM - comprehensive memory resources engineered into the R5F571MFDDFB#V0 for complex real-time firmware and data logging.

What functional safety features does the R5F571MFDDFB#V0 provide for IEC60730 compliance?

The R5F571MFDDFB#V0 includes multiple IEC60730 Class B compliance features: oscillation-stoppage detection, hardware CRC calculator, independent watchdog timer (IWDTa) with window function, self-diagnostic A/D converter test, register write protection, and memory protection unit (MPU). These are integral to the R5F571MFDDFB#V0's design for household appliance and industrial safety-critical control applications.