Renesas R5F571MGHDLC#20

Overview

R5F571MGHDLC#20 from Renesas is a 240-MHz 32-bit RXv2 core MCU with single-precision IEEE-754 FPU, 4-MB on-chip code flash, 512-KB SRAM (including 32-KB ECCRAM), and integrated IEEE 1588-compliant Ethernet MAC - deployed in industrial gateways requiring deterministic real-time control, secure firmware updates, and time-synchronized networked I/O.

For engineers reviewing the R5F571MGHDLC#20 datasheet, R5F571MGHDLC#20 pinout, R5F571MGHDLC#20 application, or R5F571MGHDLC#20 equivalent, this page delivers verified package mapping (PLQP0176KB-A, 176-pin LFBGA), confirmed peripheral channel counts (2× ETHERC, 3× CAN, 9× SCI, 4× SCIFA), clock domain constraints (ICLK up to 240 MHz, PCLKA up to 120 MHz), and functional distinctions versus alternative RX71M variants.

Technical Context

The R5F571MGHDLC#20 implements the RXv2 CPU core with CISC Harvard architecture, 5-stage pipeline, and variable-length instructions enabling ultra-compact code density. It supports little-endian or big-endian data arrangement and executes 480 DMIPS at 240 MHz using dual multiply-and-accumulate units and a 32-bit multiplier with one-cycle latency.

Its clock system integrates PLL-based synthesis from external crystal (8–24 MHz) or internal HOCO (16/18/20 MHz), with independent domain scaling: ICLK for CPU (240 MHz max), PCLKA for Ethernet/USB/AES (120 MHz max), PCLKB for timers/I2C (60 MHz max), and dedicated ADCLKs (60 MHz max) for two 12-bit S12ADC units.

Key Specifications

Pinout & Package

Package: PLQP0176KB-A, 176-pin LFBGA (24 × 24 mm, 0.5-mm pitch), rated for –40°C to +85°C (D-version).

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F571MGHDLC#20, R5F571MLHDFP#30 trades Ethernet/USB bandwidth and I/O for compact packaging, while R5F571MCHDLC#20 upgrades thermal rating and data retention capacity - neither offers pin-to-pin compatibility, requiring PCB redesign for migration.

Availability

R5F571MGHDLC#20 is available at Aetrix Electronics and suitable for industrial gateways, programmable logic controllers, smart energy metering systems, and medical diagnostic interfaces requiring stable component supply, long-term lifecycle assurance, and traceable sourcing.

Supply support for R5F571MGHDLC#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 specializing in microcontrollers, analog, power, and SoC solutions for industrial, automotive, and enterprise applications.

The RX71M Group, including R5F571MGHDLC#20, was designed for high-performance industrial automation with integrated Ethernet, functional safety features, and cryptographic acceleration - targeting deterministic real-time control in harsh environments.

FAQ

What is the maximum operating frequency of the R5F571MGHDLC#20 CPU core?

The R5F571MGHDLC#20 CPU core operates at a maximum frequency of 240 MHz, delivering 480 DMIPS performance. This speed is sustained using the internal PLL with an external 8–24 MHz crystal or internal HOCO as reference. The ICLK domain drives the RXv2 core, while peripheral clocks (PCLKA/PCLKB) are independently scaled to optimize power and timing margins - critical for meeting hard real-time deadlines in motion control applications where R5F571MGHDLC#20 is deployed.

Does the R5F571MGHDLC#20 support IEEE 1588 Precision Time Protocol?

Yes, the R5F571MGHDLC#20 includes a dedicated PTP controller (EPTPCa) tightly coupled to its dual Ethernet MAC (ETHERC) modules. This hardware block provides timestamping accuracy within ±50 ns for ingress/egress frames, enabling sub-microsecond synchronization across distributed industrial networks. The R5F571MGHDLC#20 uses this capability to implement master/slave clock roles in time-sensitive networking without external timing ICs - a key differentiator for PLC and gateway designs requiring deterministic latency.

What package type and pin count does the R5F571MGHDLC#20 use?

The R5F571MGHDLC#20 uses the PLQP0176KB-A package: a 176-pin low-profile fine-pitch ball grid array measuring 24 × 24 mm with 0.5-mm pitch. This LFBGA variant supports the full peripheral complement of the RX71M Group, including dual Ethernet PHY interfaces, high-speed USB 2.0, and 127 general-purpose I/O pins with 5-V tolerance on 19 pins. The R5F571MGHDLC#20's package is validated for industrial temperature range (–40°C to +85°C) and requires standard BGA reflow profiles per JEDEC J-STD-020.

How much on-chip flash and SRAM does the R5F571MGHDLC#20 include?

The R5F571MGHDLC#20 integrates 4 Mbytes of code flash memory with zero-wait-state access up to 120 MHz and background programming capability, plus 512 Kbytes of SRAM - split into 256 KB of high-speed no-wait RAM (0000_0000h–0003_FFFFh), 32 KB of ECCRAM with single-error correction/double-error detection, and 8 KB of battery-backed standby RAM. This memory architecture allows R5F571MGHDLC#20 to execute complex protocol stacks while maintaining data integrity in mission-critical industrial applications.

Is the R5F571MGHDLC#20 suitable for functional safety applications like IEC 60730?

Yes, the R5F571MGHDLC#20 includes multiple hardware features certified for IEC 60730 Class B compliance: oscillation-stop detection, built-in CRC calculation unit, windowed independent watchdog timer (IWDTa), A/D converter self-diagnostic function, and register write protection. These capabilities allow R5F571MGHDLC#20 to perform runtime diagnostics and fault recovery without external supervision - making it suitable for household appliances, HVAC controllers, and other safety-relevant embedded systems where certification evidence must be traceable to silicon-level mechanisms.