Renesas R5F571MFCGFC#V0

Overview

R5F571MFCGFC#V0 from Renesas is a 32-bit RXv2 microcontroller targeting industrial Ethernet edge nodes and real-time control systems. It operates at up to 240 MHz (480 DMIPS), integrates IEEE 1588-compliant dual Ethernet MAC, high-speed USB 2.0 with battery charging, 4 MB on-chip flash, 512 KB SRAM, and dual 12-bit ADCs with 21-channel unit for sensor acquisition.

For engineers reviewing the R5F571MFCGFC#V0 datasheet, R5F571MFCGFC#V0 pinout, R5F571MFCGFC#V0 application, or R5F571MFCGFC#V0 equivalent, key selection criteria include dual-ETHERNET timing precision (IEEE 1588 PTP), deterministic low-latency interrupt response (<100 ns), integrated hardware encryption (AES-256/SHA-256), and support for IEC 60730 Class B safety compliance via built-in self-test features.

Technical Context

The R5F571MFCGFC#V0 implements the RXv2 CPU core with CISC Harvard architecture, 5-stage pipeline, and variable-length instructions enabling ultra-compact code density. It supports little-endian data and instruction layout, with optional big-endian data mode, and includes memory protection unit (MPU) for secure partitioning of code and data spaces.

Its clock system combines external crystal (8–24 MHz), internal PLL, and multiple on-chip oscillators (LOCO/HOCO/IWDT-dedicated), allowing independent domain clocking: ICLK up to 240 MHz, PCLKA up to 120 MHz (for ETHERC/USBA/AES), PCLKB up to 60 MHz (for timers/SCI), and dedicated ADCLK domains for S12AD units.

Key Specifications

Pinout & Package

Package: PLQP0176KB-A, 176-pin LFBGA (24 × 24 mm, 0.5 mm pitch), RoHS compliant, operating temperature range –40°C to +105°C (G-version).

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F571MFCGFC#V0, R5F571MLDFC#V0 offers identical architecture and safety features at reduced memory cost, while R5F566TEBDFP#V0 trades dual-1588 Ethernet and memory headroom for higher PWM resolution and lower BOM cost in motion-control-only applications.

Availability

R5F571MFCGFC#V0 is available at Aetrix Electronics and suitable for industrial Ethernet gateways, programmable logic controllers, smart energy meters, medical infusion pumps, and factory automation HMI requiring stable component supply and long-term lifecycle assurance.

Supply support for R5F571MFCGFC#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 R5F571MFCGFC#V0, was designed specifically for industrial Ethernet edge nodes requiring IEEE 1588 time synchronization, functional safety compliance (IEC 60730), and high-integration real-time control - bridging the gap between general-purpose MCUs and ASIC-like determinism.

FAQ

What is the maximum operating frequency and DMIPS rating of the R5F571MFCGFC#V0?

The R5F571MFCGFC#V0 operates at a maximum frequency of 240 MHz and delivers 480 DMIPS performance. This is achieved through its optimized RXv2 CPU core with 5-stage pipeline and variable-length instruction set. The R5F571MFCGFC#V0 sustains this performance with zero-wait-state access to code flash up to 120 MHz and efficient cache-like AFU hit behavior at 240 MHz, making it suitable for demanding real-time industrial applications.

Does the R5F571MFCGFC#V0 support IEEE 1588 Precision Time Protocol, and how is it implemented?

Yes, the R5F571MFCGFC#V0 includes a dedicated IEEE 1588-compliant PTP controller (EPTPCa) tightly coupled to both Ethernet MAC modules. It provides hardware timestamping of ingress/egress frames with sub-microsecond accuracy, supports PTP message processing in hardware, and enables synchronization across dual Ethernet ports without CPU overhead. This implementation is integral to the R5F571MFCGFC#V0 silicon and requires no external timing ICs.

What safety certifications and built-in diagnostic features does the R5F571MFCGFC#V0 support for IEC 60730 compliance?

The R5F571MFCGFC#V0 includes multiple hardware features for IEC 60730 Class B compliance: oscillation-stoppage detection, hardware CRC calculator, independent watchdog timer (IWDTa) with configurable window function, A/D converter self-diagnostic, register write protection, and memory ECC on 32 KB RAM. These capabilities are documented in the R5F571MFCGFC#V0 datasheet (R01DS0249EJ0120) and reduce external component count for safety-certified designs.

How many Ethernet MAC interfaces does the R5F571MFCGFC#V0 integrate, and what PHY interfaces are supported?

The R5F571MFCGFC#V0 integrates two fully independent IEEE 802.3-compliant Ethernet MAC modules, each supporting 10/100 Mbps in full- and half-duplex modes. It supports both MII and RMII PHY interfaces, with dedicated signal pins (ETXD0–3, ETXCK, ERXD0–3, ERXCK) for direct connection to external PHYs. The R5F571MFCGFC#V0 does not include an integrated PHY; external PHY ICs are required for physical layer connectivity.

What is the flash and RAM configuration of the R5F571MFCGFC#V0, and how is memory protection handled?

The R5F571MFCGFC#V0 includes 4 MB of on-chip code flash memory with background programming/erasing (BGO), 512 KB of general-purpose SRAM (with 256 KB no-wait at 240 MHz), 32 KB of ECC-protected RAM (SEC-DED), and 8 KB of battery-backed standby RAM. Memory protection is enforced via a configurable MPU that isolates code, data, and peripheral regions, and trusted memory (TM) blocks prevent read-out of flash blocks 8 and 9 - all features inherent to the R5F571MFCGFC#V0 architecture.