Renesas R5F571MLDDFC#V0

Overview

R5F571MLDDFC#V0 from Renesas is a 32-bit RXv2 core 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 coexistence.

For engineers reviewing the R5F571MLDDFC#V0 datasheet, R5F571MLDDFC#V0 pinout, R5F571MLDDFC#V0 application, or R5F571MLDDFC#V0 equivalent, key selection considerations include its 177-pin TFLGA package with 127 GPIOs (19 × 5-V tolerant), dual-channel high-speed USB 2.0 with battery charging support, hardware AES/SHA encryption, and full IEC 60730 Class B compliance features including oscillation-stop detection and A/D self-diagnosis.

Technical Context

The R5F571MLDDFC#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 Ethernet controllers (ETHERC) with dedicated PTP timing engines (EPTPC) compliant with IEEE 1588-2008 for sub-microsecond time synchronization in industrial automation networks.

Its memory subsystem includes 4 MB code flash with background programming, 64 KB data flash rated for 100,000 erase/write cycles, and hierarchical RAM: 256 KB zero-wait SRAM at 240 MHz, 256 KB SRAM with one wait state above 120 MHz, plus 32 KB ECCRAM and 8 KB standby RAM backed by VBATT. Clocking supports external crystal (8–24 MHz), internal HOCO/LOCO, and PLL multiplication up to 240 MHz.

Key Specifications

Pinout & Package

Package: TFLGA-177 (PTLG0177KA-A), 8 mm × 8 mm, 0.5 mm pitch, 127 general-purpose I/O pins (19 × 5-V tolerant), 1 dedicated input pin, pull-up resistors and open-drain outputs on all I/Os.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F571MLDDFC#V0, the R5F571MDDFC#V0 offers lower flash capacity but identical real-time performance and peripheral set, while the R5F572MLDDFC#V0 delivers architectural upgrades including TSN-ready Ethernet and doubled flash - making it optimal for scalable edge intelligence deployments.

Availability

R5F571MLDDFC#V0 is available at Aetrix Electronics and suitable for industrial gateways, smart metering hubs, programmable logic controllers, medical infusion pumps, and energy management systems requiring stable component supply across long product lifecycles.

Supply support for R5F571MLDDFC#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 is a global semiconductor leader specializing in microcontrollers, analog, power, and SoC solutions for automotive, industrial, and IoT markets.

The RX71M Group targets high-reliability industrial automation applications demanding real-time determinism, functional safety, and multi-protocol connectivity - with R5F571MLDDFC#V0 optimized for space-constrained, thermally demanding environments requiring G-grade operation.

FAQ

What is the maximum operating frequency and CPU performance of the R5F571MLDDFC#V0?

The R5F571MLDDFC#V0 operates at a maximum system clock frequency of 240 MHz using its RXv2 CPU core, achieving 480 DMIPS performance. Its single-precision IEEE-754 floating-point unit enables efficient signal processing and control loop calculations without software emulation overhead. This performance level is sustained across the full industrial temperature range (–40°C to +105°C) with validated thermal derating.

Does the R5F571MLDDFC#V0 support IEEE 1588 Precision Time Protocol, and how is it implemented?

Yes, the R5F571MLDDFC#V0 integrates two IEEE 1588-compliant Ethernet MAC modules (ETHERC) with dedicated PTP timing engines (EPTPC). Each EPTPC provides hardware timestamping of ingress/egress frames with sub-microsecond resolution, independent of CPU load. The implementation supports PTP version 2 (IEEE 1588-2008) in transparent clock and boundary clock modes, enabling deterministic time synchronization in distributed industrial control networks.

What security and functional safety features does the R5F571MLDDFC#V0 include for certified applications?

The R5F571MLDDFC#V0 includes hardware-accelerated AES-128/192/256, DES/TDES, and SHA-1/224/256 encryption, plus comprehensive IEC 60730 Class B support: oscillation-stop detection, CRC calculation unit, independent watchdog timer (IWDTa) with window function, A/D converter self-diagnosis, and register write protection. These features enable compliance with UL/EN 60730 and reduce certification effort for industrial and medical applications.

What is the memory configuration of the R5F571MLDDFC#V0, and how is it partitioned for real-time operation?

The R5F571MLDDFC#V0 integrates 4 MB of on-chip code flash (with background programming), 64 KB of data flash (rated for 100,000 erase/write cycles), 512 KB of SRAM (256 KB zero-wait at 240 MHz), 32 KB of ECC RAM (SEC-DED), and 8 KB of standby RAM backed by VBATT. This hierarchy enables concurrent firmware execution, secure parameter storage, real-time buffer allocation, and fail-safe RTC logging - all without external memory components.

Which package and pin count does the R5F571MLDDFC#V0 use, and what I/O capabilities does it provide?

The R5F571MLDDFC#V0 uses a 177-pin TFLGA package (PTLG0177KA-A, 8 mm × 8 mm, 0.5 mm pitch) with 127 general-purpose I/O pins - including 19 × 5-V tolerant inputs, configurable pull-up resistors, and open-drain outputs on all I/Os. This compact, thermally efficient package supports high-density industrial PCB layouts while maintaining robust noise immunity and signal integrity for mixed-signal applications.