Renesas R5F571MFHDBG#20

Overview

R5F571MFHDBG#20 from Renesas is a 32-bit RXv2 microcontroller operating at up to 240 MHz, delivering 480 DMIPS with integrated single-precision IEEE-754 FPU, 4 MB on-chip code flash, 512 KB SRAM (including 32 KB ECC RAM), and dual 12-bit A/D converters (8 + 21 channels). It serves as a high-performance industrial control and connectivity MCU in real-time Ethernet, USB, and CAN-based systems.

For engineers reviewing the R5F571MFHDBG#20 datasheet, R5F571MFHDBG#20 pinout, R5F571MFHDBG#20 application, or R5F571MFHDBG#20 equivalent, key selection criteria include IEEE 1588-compliant Ethernet MAC support, high-speed USB 2.0 with battery charging, triple CAN interfaces, 177-pin LFBGA package with 127 GPIOs, and IEC60730 safety features including CRC, self-diagnostic A/D, and oscillation-stop detection.

Technical Context

The R5F571MFHDBG#20 implements the RXv2 CPU core with CISC Harvard architecture, 5-stage pipeline, and variable-length instructions enabling ultra-compact code. It integrates dual clock domains: ICLK up to 240 MHz for CPU execution and PCLKA up to 120 MHz for Ethernet, USB, CAN, and AES peripherals - enabling deterministic real-time operation while maintaining low power via module stop and four low-power modes.

Its peripheral subsystem includes IEEE 1588 PTP hardware acceleration via EPTPCa, three independent CAN modules (32 mailboxes each), dual USB controllers (FS-only USBb + HS/OTG USBAa), and parallel data capture (PDC) for CMOS camera interfacing - all coordinated through the Event Link Controller (ELC) to minimize CPU intervention and reduce interrupt latency.

Key Specifications

Pinout & Package

Package: PLBG0176GA-A, 177-pin LFBGA, 13 mm × 13 mm, 0.8 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 R5F571MFHDBG#20, R5F571MLHDBG#20 offers reduced memory capacity at lower cost for constrained applications, while R5F572MHDFB#30 introduces architectural enhancements for next-gen UI and security - neither is pin-compatible nor software-binary compatible without porting effort.

Availability

R5F571MFHDBG#20 is available at Aetrix Electronics and suitable for industrial automation, smart grid infrastructure, and medical device manufacturing requiring stable component supply, long-term lifecycle assurance, and traceable sourcing.

Supply support for R5F571MFHDBG#20 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 is a global semiconductor leader specializing in microcontrollers, analog, and power management solutions for industrial, automotive, and IoT markets.

The RX71M Group - including R5F571MFHDBG#20 - was designed for high-reliability industrial connectivity applications demanding real-time Ethernet, functional safety compliance (IEC60730), and rich peripheral integration in a single chip.

FAQ

What is the maximum operating frequency and core architecture of the R5F571MFHDBG#20?

The R5F571MFHDBG#20 operates at a maximum frequency of 240 MHz using the 32-bit RXv2 CPU core with CISC Harvard architecture and 5-stage pipeline. It delivers 480 DMIPS and includes single-precision IEEE-754 floating-point unit, two multiply-accumulate units, and 32-bit multiplier with one-cycle execution. This architecture enables deterministic real-time performance for industrial control and communication tasks.

Does the R5F571MFHDBG#20 support IEEE 1588 Precision Time Protocol?

Yes, the R5F571MFHDBG#20 includes dedicated hardware acceleration for IEEE 1588 via the EPTPCa (PTP Controller for Ethernet) module, tightly coupled to its dual Ethernet MACs. This enables hardware timestamping of Ethernet frames with sub-microsecond accuracy - critical for time-sensitive networking in industrial automation and motion control applications.

What package type and pin count does the R5F571MFHDBG#20 use?

The R5F571MFHDBG#20 uses the PLBG0176GA-A package: a 177-pin LFBGA with 13 mm × 13 mm body size and 0.8 mm pitch. It provides 127 general-purpose I/O pins with 5-V tolerance, configurable pull-up/down, and open-drain capability - optimized for dense industrial PCB layouts requiring robust signal integrity and thermal dissipation.

How many CAN interfaces does the R5F571MFHDBG#20 integrate, and what standards do they support?

The R5F571MFHDBG#20 integrates three independent CAN modules (CAN0, CAN1, CAN2), each compliant with ISO 11898-1 for standard and extended frame formats. Each channel supports 32 mailboxes with programmable acceptance filtering, enabling simultaneous communication across multiple vehicle or factory networks - ideal for diagnostic tools and distributed control systems.

Is the R5F571MFHDBG#20 suitable for IEC60730 Class B safety-critical applications?

Yes, the R5F571MFHDBG#20 includes multiple hardware features required for IEC60730 Class B compliance: oscillation-stoppage detection, built-in CRC calculation unit, self-diagnostic A/D converter, register write protection, and independent watchdog timer (IWDTa) with window function. These reduce software validation burden and support safe failure detection in home appliances and industrial equipment.