Renesas R5F571MLDDFB#30

Overview

R5F571MLDDFB#30 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 dual 12-bit A/D converters (8 + 21 channels). It serves as a high-performance industrial control and connectivity MCU in applications requiring IEEE 1588 Ethernet, CAN, USB 2.0 HS with battery charging, and SD host interface.

For engineers reviewing the R5F571MLDDFB#30 datasheet, R5F571MLDDFB#30 pinout, R5F571MLDDFB#30 application, or R5F571MLDDFB#30 equivalent, key selection criteria include its 176-pin LFBGA package (PLQP0176KB-A), 240-MHz real-time deterministic execution, dual Ethernet MAC with PTP support, hardware AES/SHA encryption, and IEC60730-compliant safety features for functional safety-critical designs.

Technical Context

The R5F571MLDDFB#30 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 clock domains: ICLK up to 240 MHz for CPU execution and PCLKA up to 120 MHz for Ethernet, USB, CAN, and AES peripherals - enabling concurrent high-speed communication and deterministic real-time processing.

Its memory subsystem includes 4 MB code flash with adaptive fetch unit (AFU) for zero-wait-state operation at ≤120 MHz, 64 KB data flash rated for 100,000 erase/write cycles, and segmented SRAM with ECC protection on 32 KB and standby retention on 8 KB. The device supports full IEC60730 Class B compliance via oscillation-stop detection, CRC accelerators, IWDTa with window function, and register write protection.

Key Specifications

Pinout & Package

Package: PLQP0176KB-A - 176-pin Low-Profile Fine-Pitch Ball Grid Array (LFBGA), 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 R5F571MLDDFB#30, the R5F571MDDFB#30 trades flash capacity for lower unit cost while maintaining identical timing, peripherals, and safety features; the R5F572MLDDFB#30 extends capability with CAN FD and faster arithmetic but requires validation of firmware compatibility.

Availability

R5F571MLDDFB#30 is available at Aetrix Electronics and suitable for industrial automation, smart energy gateways, and medical imaging control requiring stable component supply, long-term lifecycle assurance, and traceable sourcing.

Supply support for R5F571MLDDFB#30 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 industrial, automotive, and infrastructure markets.

The RX71M Group targets high-integrity industrial applications demanding real-time performance, functional safety (IEC60730), and rich connectivity-including Ethernet, CAN, USB, and SD - all within a single-chip solution.

FAQ

What is the maximum operating frequency and core type of the R5F571MLDDFB#30?

The R5F571MLDDFB#30 features a 32-bit RXv2 CPU core with a maximum operating frequency of 240 MHz, achieving 480 DMIPS performance. Its Harvard architecture, 5-stage pipeline, and variable-length instruction set deliver high code density and deterministic real-time execution. This makes the R5F571MLDDFB#30 ideal for time-critical applications such as motor control and industrial PLCs where consistent interrupt latency and cycle accuracy are essential.

Does the R5F571MLDDFB#30 support IEEE 1588 Precision Time Protocol?

Yes, the R5F571MLDDFB#30 integrates a dedicated PTP controller (EPTPCa) linked directly to its dual Ethernet MAC modules, enabling hardware timestamping of IEEE 1588 frames with sub-microsecond accuracy. This allows the R5F571MLDDFB#30 to serve as a transparent clock or boundary clock in time-sensitive networking applications, eliminating software-based timestamping overhead and jitter.

What are the flash and RAM capacities of the R5F571MLDDFB#30?

The R5F571MLDDFB#30 includes 4 MB of on-chip code flash memory with zero-wait-state access up to 120 MHz, 64 KB of reprogrammable data flash rated for 100,000 erase/write cycles, and 512 KB of SRAM - with 256 KB accessible at full 240 MHz speed. Additionally, it provides 32 KB of ECC-protected RAM and 8 KB of battery-backed standby RAM. These memory resources make the R5F571MLDDFB#30 well-suited for complex firmware with safety stacks and data logging.

Which communication interfaces does the R5F571MLDDFB#30 support for industrial connectivity?

The R5F571MLDDFB#30 supports dual IEEE 1588-compliant Ethernet MACs, three CAN 2.0B modules (32 mailboxes each), USB 2.0 High-Speed with Battery Charging 1.2, SD host interface, quad SPI, two I²C interfaces (up to 1 Mbps), nine serial channel interfaces (SCIg/h), and two RSPI channels. This comprehensive suite enables seamless integration into multi-protocol industrial networks without external bridge ICs - a key advantage of the R5F571MLDDFB#30 in gateway and controller designs.

Is the R5F571MLDDFB#30 qualified for functional safety standards like IEC60730?

Yes, the R5F571MLDDFB#30 includes multiple hardware features certified for IEC60730 Class B compliance: oscillation-stop detection, dedicated CRC calculation unit, independent watchdog timer (IWDTa) with configurable window, memory protection unit (MPU), register write protection, and self-diagnostic A/D converter functionality. These capabilities allow the R5F571MLDDFB#30 to be deployed in safety-critical household appliances, HVAC controls, and industrial equipment requiring certified fault detection and recovery.