Renesas R5F571MGCDLK#20

Overview

R5F571MGCDLK#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 - deployed in industrial gateways requiring deterministic real-time networking, secure firmware updates, and multi-protocol fieldbus coexistence.

For engineers reviewing the R5F571MGCDLK#20 datasheet, R5F571MGCDLK#20 pinout, R5F571MGCDLK#20 application, or R5F571MGCDLK#20 equivalent, key selection considerations include its 177-pin TFLGA package with 127 GPIOs (19 × 5-V tolerant), dual USB 2.0 interfaces (HS + FS with battery charging), triple CAN FD-capable channels, and hardware-accelerated AES/SHA crypto engines for IEC 62443-compliant edge devices.

Technical Context

The R5F571MGCDLK#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 DMA controllers (DMACa: 8-channel; EXDMACa: 2-channel) and a dedicated Ethernet DMA (EDMACa: 3-channel) to offload frame processing from the CPU while maintaining IEEE 1588 timestamp accuracy via EPTPCa.

Its clock system supports simultaneous domain-specific frequencies: ICLK up to 240 MHz for CPU execution, PCLKA up to 120 MHz for Ethernet/USB/AES peripherals, and PCLKB up to 60 MHz for timers/ADC/SCI - all derived from PLL-synthesized outputs of the internal HOCO or external crystal, with independent division/multiplication per domain.

Key Specifications

Pinout & Package

Package: PTLG0177KA-A - 8 mm × 8 mm, 0.5-mm pitch, 177-ball TFLGA with 127 general-purpose I/O pins (19 × 5-V tolerant), 1 dedicated IRQ input, and power/ground ball distribution optimized for low-noise analog-digital partitioning.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F571MGCDLK#20, the R5F571MLDFP#30 reduces PCB area and BOM cost but sacrifices dual-Ethernet redundancy and USB HS bandwidth, while the R5F566TEBDFP#30 trades networking capability for higher-resolution motor control timing - making R5F571MGCDLK#20 the sole choice for time-sensitive converged industrial networks.

Availability

R5F571MGCDLK#20 is available at Aetrix Electronics and suitable for industrial gateways, smart energy hubs, programmable logic controllers, and medical infusion pumps requiring stable component supply across extended product lifecycles.

Supply support for R5F571MGCDLK#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 is a Japanese semiconductor manufacturer specializing in microcontrollers, analog, and power solutions for automotive, industrial, and IoT markets.

The RX71M Group targets high-reliability industrial automation applications, integrating real-time networking, functional safety features, and hardware security to replace FPGA+ARM combinations in programmable logic controllers and protocol gateways.

FAQ

What is the maximum operating frequency and DMIPS rating of the R5F571MGCDLK#20?

The R5F571MGCDLK#20 operates at a maximum frequency of 240 MHz and delivers 480 DMIPS performance. This is achieved through the RXv2 CPU core's 5-stage pipeline and dual multiply-accumulate units. The R5F571MGCDLK#20 sustains this performance with zero wait states on code flash up to 120 MHz and uses adaptive fetch units to minimize stalls at higher frequencies - critical for real-time motion control loops.

Does the R5F571MGCDLK#20 support IEEE 1588 Precision Time Protocol hardware timestamping?

Yes, the R5F571MGCDLK#20 integrates a dedicated EPTPCa (Ethernet PTP Controller) block compliant with IEEE 1588-2008. It captures transmit/receive timestamps at the MAC layer with sub-100 ns resolution and supports hardware-based delay measurement. This capability is essential for R5F571MGCDLK#20 deployments as PTP grandmaster clocks in distributed industrial control systems.

What are the memory resources available on the R5F571MGCDLK#20?

The R5F571MGCDLK#20 includes 4 MB of on-chip code flash memory (with background programming), 64 KB of reprogrammable data flash (rated for 100,000 erase/write cycles), 512 KB of general SRAM (256 KB accessible at full 240 MHz speed), 32 KB of ECC-protected RAM, and 8 KB of battery-backed standby RAM. These resources allow R5F571MGCDLK#20 to host dual-application firmware images and retain critical state during power loss.

Which communication interfaces does the R5F571MGCDLK#20 support for industrial networking?

The R5F571MGCDLK#20 supports dual IEEE 1588-compliant Ethernet MACs (MII/RMII), USB 2.0 high-speed host/function with battery charging, three CAN 2.0B modules (32 mailboxes each), nine SCI channels, four SCIFA interfaces with 16-byte FIFOs, two I2C buses (up to 1 Mbps), and quad SPI. This makes R5F571MGCDLK#20 uniquely suited for protocol-converged gateways interfacing EtherNet/IP, PROFINET, and CANopen networks simultaneously.

How does the R5F571MGCDLK#20 implement functional safety and security features?

The R5F571MGCDLK#20 includes hardware-based security and safety mechanisms: memory protection unit (MPU), register write protection, oscillation-stop detection, CRC calculation unit, self-diagnostic A/D converter, and AES/SHA crypto accelerators. For IEC 61508 SIL2 or IEC 62443 compliance, R5F571MGCDLK#20 leverages these features to isolate safety-critical tasks and validate firmware integrity - validated in Renesas' Functional Safety Manual R01UL0079EJ0200.