Renesas R5F571MLCDLK#20

Overview

R5F571MLCDLK#20 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 - designed for industrial real-time control, networked gateway, and secure edge node applications.

For engineers reviewing the R5F571MLCDLK#20 datasheet, R5F571MLCDLK#20 pinout, R5F571MLCDLK#20 application, or R5F571MLCDLK#20 equivalent, key selection considerations include its 177-pin TFLGA package, dual Ethernet + high-speed USB 2.0 with battery charging, 12-bit dual A/D converter (29 total channels), hardware AES/SHA encryption, and IEC60730 safety support for certified embedded systems.

Technical Context

The R5F571MLCDLK#20 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 (DMACAa: 8 channels; EXDMACa: 2 channels) and a dedicated Ethernet DMA (EDMACa: 3 channels) to offload frame handling from the CPU.

Its clock system supports multiple independent domains: ICLK up to 240 MHz for CPU execution, PCLKA up to 120 MHz for Ethernet/USB/AES, and PCLKB up to 60 MHz for timers/peripherals. The device includes an event link controller (ELC) enabling hardware-triggered peripheral coordination without CPU intervention - critical for deterministic real-time response.

Key Specifications

Pinout & Package

Package: PTLG0177KA-A - 177-pin Thin Fine-Pitch Land Grid Array (TFLGA), 8 mm × 8 mm body, 0.5 mm pitch, 0.7 mm height, RoHS-compliant, lead-free, moisture sensitivity level 3 (MSL3).

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F571MLCDLK#20, the R5F571MLHDLK#20 offers identical peripheral integration and pinout at reduced flash capacity, while the R5F566TEADFP#30 trades networking and security features for higher PWM channel density and lower cost in motor-specific applications.

Availability

R5F571MLCDLK#20 is available at Aetrix Electronics and suitable for industrial Ethernet gateways, secure edge nodes, motor control gateways, smart building controllers, and IEC60730-certified equipment requiring stable component supply across extended product lifecycles.

Supply support for R5F571MLCDLK#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 - including the R5F571MLCDLK#20 - was engineered for high-integrity industrial connectivity, combining real-time determinism, hardware-accelerated security, and IEEE 1588 time synchronization in a single chip for next-generation edge infrastructure.

FAQ

What is the maximum operating frequency and performance rating of the R5F571MLCDLK#20?

The R5F571MLCDLK#20 operates at a maximum frequency of 240 MHz and delivers 480 DMIPS of processing performance. Its RXv2 CPU core includes a single-precision IEEE-754 floating-point unit, 32-bit multiplier (1-cycle execution), and divider (2-cycle execution), enabling efficient real-time signal processing and control algorithm execution. This performance level is sustained across the full industrial temperature range (–40°C to +105°C).

Does the R5F571MLCDLK#20 support IEEE 1588 Precision Time Protocol, and how is it implemented?

Yes, the R5F571MLCDLK#20 includes a dedicated IEEE 1588-compliant PTP controller (EPTPCa) tightly coupled to both Ethernet MACs. It provides hardware timestamping of ingress/egress frames with sub-100 ns resolution, supports PTP master/slave roles, and enables synchronization accuracy required for industrial time-sensitive networking (TSN) applications. No external PHY or timing IC is needed.

What are the memory resources available on the R5F571MLCDLK#20?

The R5F571MLCDLK#20 integrates 4 MB of on-chip code flash memory (with no-wait-state access up to 120 MHz), 64 KB of reprogrammable data flash (rated for 100,000 write/erase cycles), 512 KB of general-purpose SRAM (256 KB accessible at full 240 MHz speed), 32 KB of ECC-protected RAM (SEC-DED), and 8 KB of battery-backed standby RAM. All memory blocks support background programming/erasing (BGO).

Which communication interfaces does the R5F571MLCDLK#20 support for industrial networking?

The R5F571MLCDLK#20 supports dual IEEE 802.3 10/100 Mbps Ethernet MACs with MII/RMII interfaces, three ISO 11898-1 CAN modules (32 mailboxes each), high-speed USB 2.0 with battery charging (480 Mbps), nine SCI channels, four SCIFA interfaces with 16-byte FIFOs, two I²C buses (up to 1 Mbps), quad SPI, SD host interface, and MMCIF - making it ideal for heterogeneous industrial protocol bridging.

Is the R5F571MLCDLK#20 qualified for functional safety standards such as IEC60730?

Yes, the R5F571MLCDLK#20 includes built-in features for IEC60730 Class B compliance: oscillation-stoppage detection, hardware CRC calculation unit, independent watchdog timer (IWDTa) with window function, self-diagnostic A/D converter test, register write protection, and memory protection unit (MPU). These capabilities are documented in Renesas' official safety manual R01UL0079EJ0200.