Renesas R5F571MLDDLC#20

Overview

R5F571MLDDLC#20 from Renesas is a 32-bit RXv2 core microcontroller operating at up to 240 MHz (480 DMIPS), featuring 4 MB on-chip code flash, 512 KB SRAM (including 32 KB ECC RAM), IEEE 1588-compliant dual Ethernet MAC, high-speed USB 2.0 with battery charging, CAN v2.0B (3 channels), and dual 12-bit A/D converters - deployed in industrial gateways requiring real-time protocol bridging and secure edge processing.

For engineers reviewing the R5F571MLDDLC#20 datasheet, R5F571MLDDLC#20 pinout, R5F571MLDDLC#20 application, or R5F571MLDDLC#20 equivalent, this MCU delivers deterministic real-time control, hardware-accelerated crypto (AES-128/192/256, SHA-256), and integrated PTP timing - critical for IEC 62443-compliant automation systems, time-sensitive networking nodes, and functional-safety-aware motor drives.

Technical Context

The R5F571MLDDLC#20 implements the RXv2 CPU core with 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-bandwidth data movement and deterministic control.

Its memory subsystem includes 4 MB code flash with background programming (BGO), 64 KB data flash rated for 100,000 erase/write cycles, and segmented SRAM with region-specific wait-state behavior - 256 KB accessible at full 240 MHz, while upper 256 KB incurs one wait state above 120 MHz. The device supports little- or big-endian data arrangement and includes a 12-byte unique ID for secure boot binding.

Key Specifications

Pinout & Package

LFBGA-176 package (PLQP0176KB-A), 24 × 24 mm body, 0.5 mm pitch, 127 general-purpose I/O pins (19 with 5-V tolerance), 1 dedicated input pin, pull-up resistors and open-drain capability 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 R5F571MLDDLC#20, the R5F571MLHDDC#20 offers identical functionality in an LQFP package for easier assembly, while the R5F572MLDDFC#20 upgrades CPU performance and adds TSN but removes high-speed USB - making the R5F571MLDDLC#20 optimal for cost-sensitive, USB-dependent industrial controllers needing proven reliability.

Availability

R5F571MLDDLC#20 is available at Aetrix Electronics and suitable for industrial gateways, smart energy meters, programmable logic controllers, motor drive controllers, and precision timing equipment requiring stable component supply across multi-year production cycles.

Supply support for R5F571MLDDLC#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 Corporation is a global semiconductor leader headquartered in Tokyo, Japan, specializing in microcontrollers, analog, power, and SoC solutions for automotive, industrial, and IoT markets.

The RX71M Group targets high-integrity industrial applications demanding real-time determinism, functional safety compliance (IEC60730), and integrated connectivity - designed specifically for protocol gateways, PLCs, and edge controllers operating in harsh electromagnetic environments.

FAQ

What is the maximum operating frequency and DMIPS rating of the R5F571MLDDLC#20?

The R5F571MLDDLC#20 operates at a maximum system clock (ICLK) frequency of 240 MHz and delivers 480 DMIPS of processing performance. This is achieved through the RXv2 CPU core's 5-stage pipeline, single-cycle 32-bit multiply, and optimized instruction set - enabling real-time control loops and protocol stack execution without external accelerators. The R5F571MLDDLC#20 maintains this performance across its full operating temperature range (–40°C to +85°C).

Does the R5F571MLDDLC#20 support IEEE 1588 Precision Time Protocol?

Yes, the R5F571MLDDLC#20 includes a dedicated PTP controller (EPTPCa) compliant with IEEE 1588-2008, tightly coupled to its dual Ethernet MAC modules. It provides hardware timestamping for ingress/egress frames, sub-microsecond clock synchronization, and transparent clock functionality - eliminating the need for external timing ICs in time-sensitive networking applications. This capability is fully integrated and requires no external components to implement PTP grandmaster or slave roles.

What package type and pin count does the R5F571MLDDLC#20 use?

The R5F571MLDDLC#20 uses a 176-pin LFBGA package (PLQP0176KB-A) with 24 × 24 mm body size and 0.5 mm pitch. It provides 127 general-purpose I/O pins (19 of which are 5-V tolerant), along with dedicated power, clock, reset, and debug interfaces. This package is optimized for high-density industrial PCB layouts while maintaining thermal performance suitable for continuous operation in enclosed enclosures.

How much on-chip memory does the R5F571MLDDLC#20 include?

The R5F571MLDDLC#20 integrates 4 MB of code flash memory (with background programming), 64 KB of reprogrammable data flash (rated for 100,000 erase/write cycles), 512 KB of SRAM (256 KB accessible at zero wait states even at 240 MHz), 32 KB of ECC-protected RAM, and 8 KB of battery-backed standby RAM. This memory hierarchy supports complex real-time OS deployments, secure firmware updates, and long-duration data logging without external memory.

Which communication interfaces are supported by the R5F571MLDDLC#20?

The R5F571MLDDLC#20 supports dual IEEE 1588 Ethernet MACs (MII/RMII), high-speed USB 2.0 (480 Mbps) with battery charging, full-speed USB 2.0, three CAN v2.0B channels (32 mailboxes each), nine SCI/SCIg/SCIh serial ports, four SCIFA interfaces with 16-byte FIFOs, two I²C buses (up to 1 Mbps), quad SPI, SD host interface, MMCIF, and parallel camera interface (PDC). This breadth enables seamless integration into heterogeneous industrial networks without external bridge ICs.