Renesas R5F571MJCGFB#V0

Overview

R5F571MJCGFB#V0 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 IEEE 1588-compliant dual Ethernet MAC - deployed in industrial gateways requiring deterministic real-time networking, secure firmware updates, and multi-protocol fieldbus interfacing.

For engineers reviewing the R5F571MJCGFB#V0 datasheet, R5F571MJCGFB#V0 pinout, R5F571MJCGFB#V0 application, or R5F571MJCGFB#V0 equivalent, this MCU supports IEC 60730 safety compliance, hardware-accelerated AES/SHA encryption, dual USB (HS + FS with battery charging), CAN FD-capable ISO 11898-1 interfaces, and high-resolution 12-bit A/D conversion across 29 total channels - critical for functional safety-critical motor control and energy metering designs.

Technical Context

The R5F571MJCGFB#V0 implements the RXv2 CPU core with CISC Harvard architecture, 5-stage pipeline, and variable-length instructions enabling ultra-compact code density. It integrates dual independent DMA controllers (DMACa: 8 channels; EXDMACa: 2 channels) and a dedicated Ethernet DMA (EDMACa: 3 channels) to offload frame processing from the CPU while maintaining IEEE 1588 timestamp accuracy via EPTPCa.

Its clock system combines external crystal support (8–24 MHz), internal HOCO (16/18/20 MHz), LOCO (240 kHz), and PLL-based ICLK scaling up to 240 MHz, with independent peripheral clock domains (PCLKA up to 120 MHz for ETHERC/USBA/AES; PCLKB up to 60 MHz for timers/ADC). The device includes MPU, trusted memory protection for flash blocks 8–9, and register write protection for safety-critical configuration registers.

Key Specifications

Pinout & Package

LFBGA-176 package (PLQP0176KB-A, 24 × 24 mm, 0.5 mm pitch) with 127 general-purpose I/O pins, 19 of which are 5-V tolerant, plus dedicated power, ground, clock, reset, debug (JTAG/FINE), and peripheral-specific signal balls including dual Ethernet MII/RMII, USB HS/FS PHY, CANH/CANL, SDIO, QSPI, and parallel camera interface (PDC) pins.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F571MJCGFB#V0, R5F571MLDFB#V0 trades flash capacity for lower unit cost without sacrificing pin compatibility or real-time performance, while R5F566TEBDFP#V0 offers superior motor control peripherals at the expense of industrial networking features - making the R5F571MJCGFB#V0 optimal for converged edge gateway use cases.

Availability

R5F571MJCGFB#V0 is available at Aetrix Electronics and suitable for industrial gateways, smart energy meters, programmable logic controllers, and motor drive controllers requiring stable component supply, long-term lifecycle assurance, and traceable sourcing for safety-certified production.

Supply support for R5F571MJCGFB#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 headquartered in Tokyo, Japan, specializing in microcontrollers, analog, power, and SoC solutions for automotive, industrial, and enterprise markets.

The RX71M Group targets high-performance industrial automation applications requiring real-time determinism, functional safety certification, and multi-protocol connectivity - with R5F571MJCGFB#V0 serving as the flagship variant for Ethernet-enabled edge intelligence.

FAQ

What is the maximum operating frequency and DMIPS rating of the R5F571MJCGFB#V0?

The R5F571MJCGFB#V0 operates at a maximum frequency of 240 MHz and delivers 480 DMIPS performance. This is achieved through its RXv2 CPU core with 5-stage pipeline, single-cycle 32-bit multiply, and integrated single-precision IEEE-754 floating-point unit - enabling real-time signal processing and control loop execution in demanding industrial applications.

Does the R5F571MJCGFB#V0 support IEEE 1588 Precision Time Protocol?

Yes, the R5F571MJCGFB#V0 includes a dedicated IEEE 1588-compliant PTP controller (EPTPCa) tightly coupled to its dual Ethernet MAC modules. This enables hardware timestamping of Ethernet frames with sub-microsecond accuracy, essential for time-sensitive networking in synchronized motion control and distributed I/O systems.

What security features does the R5F571MJCGFB#V0 provide for firmware protection?

The R5F571MJCGFB#V0 provides multiple firmware protection mechanisms: Trusted Memory (TM) blocks prevent read-out of flash sectors 8–9, AES-128/192/256 and SHA-224/256 accelerators enable secure boot and OTA update authentication, and register write protection safeguards critical configuration bits - collectively supporting IEC 60730 Class B compliance.

How many analog-to-digital converter channels does the R5F571MJCGFB#V0 include?

The R5F571MJCGFB#V0 integrates two independent 12-bit S12ADC units: Unit 0 provides 8 channels and Unit 1 provides 21 channels, totaling 29 configurable analog inputs. Each channel supports selectable resolution (8/10/12-bit), per-channel sampling time control, and digital window comparison for autonomous fault detection.

What is the package type and pin count of the R5F571MJCGFB#V0?

The R5F571MJCGFB#V0 uses a 176-pin LFBGA package (PLQP0176KB-A, 24 × 24 mm, 0.5 mm pitch) with 127 general-purpose I/O pins - 19 of which are 5-V tolerant. This package supports all peripheral functions including dual Ethernet MII, USB HS/FS, 3× CAN, SDHI, QSPI, and parallel camera interface signals.