Renesas R5F571MLGDLK#20

Overview

R5F571MLGDLK#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 R5F571MLGDLK#20 datasheet, R5F571MLGDLK#20 pinout, R5F571MLGDLK#20 application, or R5F571MLGDLK#20 equivalent, key selection criteria include its 176-pin LFBGA package, dual 10/100 Mbps Ethernet with PTP support, high-speed USB 2.0 host/function with battery charging, CAN v2.0B (3 channels), and IEC60730 safety features including CRC, oscillation-stop detection, and A/D self-diagnostic.

Technical Context

The R5F571MLGDLK#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 (DMACa: 8 channels; EXDMACa: 2 channels) and a dedicated Ethernet DMA (EDMACa: 3 channels) to offload frame handling from the CPU.

Clock subsystem includes PLL-based system clock (ICLK up to 240 MHz), separate peripheral clocks (PCLKA up to 120 MHz for Ethernet/USB/AES; PCLKB up to 60 MHz for timers/I/O), and dedicated IWDT oscillator (120 kHz). Power management supports four low-power modes, RTC battery backup via VBATT, and module stop control.

Key Specifications

Pinout & Package

Package: PLQP0176KB-A, 176-pin Low-Profile Fine-Pitch Ball Grid Array (LFBGA), 24 mm × 24 mm, 0.5 mm ball pitch, RoHS-compliant, lead-free, moisture sensitivity level 3 (MSL3).

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar 32-bit industrial MCU applications.

Compared with R5F571MLGDLK#20, the R5F571MLGDFP#30 offers identical real-time performance and Ethernet capability in a smaller package but sacrifices high-speed USB and half the SRAM, while the R5F572MLGDLK#20 introduces architectural enhancements that improve security and future-proofing at the cost of software compatibility.

Availability

R5F571MLGDLK#20 is available at Aetrix Electronics and suitable for industrial gateways, smart metering hubs, and secure PLC controllers requiring stable component supply, long lifecycle assurance, and automotive-grade reliability under extended temperature operation.

Supply support for R5F571MLGDLK#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 enterprise applications.

The RX71M Group, including R5F571MLGDLK#20, was engineered for deterministic real-time control in networked industrial systems - emphasizing IEEE 1588 time synchronization, functional safety (IEC60730), and integrated connectivity without external co-processors.

FAQ

What is the maximum operating frequency and DMIPS rating of the R5F571MLGDLK#20?

The R5F571MLGDLK#20 operates at a maximum 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 multiply, and integrated single-precision IEEE-754 floating-point unit - enabling real-time signal processing and complex control algorithms without external math coprocessors.

Does the R5F571MLGDLK#20 support IEEE 1588 Precision Time Protocol?

Yes, the R5F571MLGDLK#20 includes a dedicated PTP controller (EPTPCa) tightly coupled to its dual Ethernet MAC (ETHERC). It provides hardware timestamping of Ethernet frames with sub-microsecond resolution, supports PTP delay request-response and peer-to-peer transparent clock modes, and integrates with MTU3a/GPT timers for synchronized event generation - meeting requirements for time-sensitive networking in industrial automation.

What package type and pin count does the R5F571MLGDLK#20 use?

The R5F571MLGDLK#20 uses the PLQP0176KB-A package: a 176-pin Low-Profile Fine-Pitch Ball Grid Array (LFBGA) measuring 24 mm × 24 mm with 0.5 mm ball pitch. This package supports all RX71M peripherals including dual Ethernet, high-speed USB 2.0, and 127 general-purpose I/O pins - and is rated for operation from –40°C to +105°C (G-version).

How much on-chip memory does the R5F571MLGDLK#20 include?

The R5F571MLGDLK#20 integrates 4 MB of on-chip code flash memory (with background programming/erasing), 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, and 8 KB of battery-backed standby RAM - providing ample storage for complex firmware, real-time buffers, and safety-critical data retention.

Which communication interfaces are supported by the R5F571MLGDLK#20?

The R5F571MLGDLK#20 supports dual IEEE 1588 Ethernet MAC (MII/RMII), high-speed USB 2.0 host/function with battery charging (USBAa), full-speed USB 2.0 (USBb), three CAN 2.0B channels, nine SCI/SCIg/SCIh serial ports, four SCIFA interfaces with 16-byte FIFOs, two I2C buses (up to 1 Mbps), two RSPI, one QSPI, SD host interface (SDHI), MMCIF, and parallel data capture (PDC) - making it ideal for heterogeneous industrial connectivity.