Renesas R5F571MLDDFP#V0

Overview

R5F571MLDDFP#V0 from Renesas is a 32-bit RXv2 microcontroller designed for high-performance industrial and networked embedded systems. It operates at up to 240 MHz (480 DMIPS), integrates 4 MB on-chip code flash, 512 KB SRAM, IEEE 1588-compliant dual Ethernet MAC, high-speed USB 2.0 with battery charging, CAN, SD host interface, and hardware AES/SHA encryption - enabling real-time control in smart gateways and edge IoT nodes.

For engineers reviewing the R5F571MLDDFP#V0 datasheet, R5F571MLDDFP#V0 pinout, R5F571MLDDFP#V0 application, or R5F571MLDDFP#V0 equivalent, key selection criteria include dual Ethernet + IEEE 1588 timestamping capability, 177-pin TFLGA package with 127 GPIOs, 240-MHz deterministic real-time execution, and integrated security accelerators for secure firmware updates and device authentication.

Technical Context

The R5F571MLDDFP#V0 implements the RXv2 CPU core with CISC Harvard architecture, 5-stage pipeline, and variable-length instructions - delivering ultra-compact code density and fast interrupt response. It supports little-endian data arrangement and includes a single-precision IEEE-754 FPU, two MAC units, and a 32-bit multiplier with one-cycle execution.

Its clock system combines external crystal oscillation (8–24 MHz), internal HOCO (16/18/20 MHz), LOCO (240 kHz), and PLL-based frequency synthesis to drive ICLK up to 240 MHz, PCLKA up to 120 MHz (for Ethernet, USB, AES), and PCLKB up to 60 MHz (for timers, ADC, UART). The MCU features four low-power modes and battery-backed RTC operation via VBATT.

Key Specifications

Pinout & Package

Package: TFLGA-177 (PTLG0177KA-A), 8 mm × 8 mm, 0.5 mm pitch, 177-terminal fine-pitch land grid array with exposed thermal pad.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F571MLDDFP#V0, the R5F571MDDFP#V0 offers lower flash capacity but identical real-time performance and peripheral set, while the R5F572MLDDFP#V0 extends CAN capability and adds CRC acceleration - making it preferable for safety-critical upgrades without PCB redesign.

Availability

R5F571MLDDFP#V0 is available at Aetrix Electronics and suitable for industrial gateways, smart energy meters, medical imaging edge nodes, and automotive diagnostic tools requiring stable component supply, long-term lifecycle assurance, and traceable sourcing.

Supply support for R5F571MLDDFP#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 targets high-integrity industrial networking applications, combining real-time determinism, IEEE 1588 time synchronization, and hardware security to replace FPGA+ARM combinations in edge infrastructure.

FAQ

What is the maximum operating frequency and DMIPS rating of the R5F571MLDDFP#V0?

The R5F571MLDDFP#V0 operates at a maximum system clock frequency of 240 MHz and delivers 480 DMIPS (Dhrystone MIPS) performance. This is achieved through its optimized RXv2 CPU core with 5-stage pipeline, single-cycle 32-bit multiplier, and efficient instruction set - enabling hard real-time execution in motion control and protocol stack processing. The R5F571MLDDFP#V0 maintains deterministic timing even under full peripheral load due to its Harvard architecture and dedicated bus matrix.

Does the R5F571MLDDFP#V0 support IEEE 1588 Precision Time Protocol?

Yes, the R5F571MLDDFP#V0 integrates a dedicated PTP controller (EPTPCa) compliant with IEEE 1588-2008, tightly coupled to both Ethernet MACs. It provides hardware timestamping for ingress/egress Ethernet frames with sub-microsecond resolution, enabling precise time synchronization in industrial automation networks. The R5F571MLDDFP#V0 supports one-step and two-step clock correction modes and can act as grandmaster, boundary, or transparent clock - critical for TSN-ready gateway designs.

What package type and pin count does the R5F571MLDDFP#V0 use?

The R5F571MLDDFP#V0 uses a PTLG0177KA-A package: a 177-terminal TFLGA (Thin Fine-Pitch Land Grid Array) measuring 8 mm × 8 mm with 0.5 mm pitch. It provides 127 general-purpose I/O pins, including 19 with 5-V tolerance, and supports advanced routing for high-speed signal integrity. This compact, thermally enhanced package is optimized for space-constrained industrial and medical edge devices where the R5F571MLDDFP#V0 serves as the central processing unit.

How much on-chip memory does the R5F571MLDDFP#V0 include?

The R5F571MLDDFP#V0 integrates 4 MB of on-chip code flash memory (with no wait states up to 120 MHz), 64 KB of reprogrammable data flash (rated for 100,000 erase/write cycles), 512 KB of SRAM (256 KB zero-wait at 240 MHz), 32 KB of ECC-protected RAM, and 8 KB of battery-backed standby RAM. This memory hierarchy enables complex real-time applications - such as dual Ethernet protocol stacks with TLS offload - while maintaining functional safety compliance via ECC and trusted memory protection in the R5F571MLDDFP#V0.

Is hardware encryption available on the R5F571MLDDFP#V0?

Yes, the R5F571MLDDFP#V0 includes optional hardware-accelerated cryptography: AES (128/192/256-bit keys), DES/TDES, and SHA-1/SHA-2 (224/256)/HMAC. These accelerators operate independently of the CPU, reducing latency for secure boot, firmware signing, and TLS handshake operations. The R5F571MLDDFP#V0 leverages these blocks to meet IEC 60730 Class B requirements and supports secure key storage in trusted memory - essential for certified medical and industrial deployments.