Renesas R5F571MFCDBG#20

Overview

R5F571MFCDBG#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 deterministic real-time control and secure network edge processing.

For engineers reviewing the R5F571MFCDBG#20 datasheet, R5F571MFCDBG#20 pinout, R5F571MFCDBG#20 application, or R5F571MFCDBG#20 equivalent, this page delivers verified package mapping (PLQP0176KB-A, 176-pin LFBGA), confirmed peripheral channel counts (e.g., 2× ETHERC, 3× CAN, 9× SCI), clock domain partitioning (ICLK ≤240 MHz, PCLKA ≤120 MHz), and functional boundaries for IEC60730 compliance features including self-diagnostic A/D and oscillation-stop detection.

Technical Context

The R5F571MFCDBG#20 implements the RXv2 CISC Harvard architecture with 5-stage pipeline, single-cycle 32×32 multiplier, and IEEE-754 single-precision FPU - enabling deterministic floating-point math in motor control loops. Its clock system separates ICLK (CPU, up to 240 MHz), PCLKA (Ethernet, USB, CAN, up to 120 MHz), and PCLKB (timers, GPIO, up to 60 MHz) to isolate timing-critical peripherals from CPU load.

Real-time determinism is reinforced by the Event Link Controller (ELC), which interconnects 119 internal event signals (e.g., TPU capture → A/D trigger → DMAC transfer) without CPU intervention. The dual Ethernet MAC supports IEEE 1588 timestamping via EPTPC, while USBAa provides high-speed USB 2.0 host/function with integrated 8.5 KB buffer and battery charging detection - exclusive to 176-/177-pin variants like this part.

Key Specifications

Pinout & Package

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

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F571MFCDBG#20, the R5F571MLDDFB#30 trades dual Ethernet and high-speed USB for lower cost and simpler layout, while the R5F572MLDDFB#30 upgrades security and CAN capability at the expense of IEEE 1588 support and introduces architectural differences that require firmware porting.

Availability

R5F571MFCDBG#20 is available at Aetrix Electronics and suitable for industrial gateways, smart energy meters, programmable logic controllers, and medical infusion pumps requiring stable component supply, long-term lifecycle assurance, and traceable sourcing.

Supply support for R5F571MFCDBG#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 industrial, automotive, and enterprise markets.

The RX71M Group targets high-performance industrial automation applications demanding real-time determinism, functional safety (IEC60730), and rich connectivity - with R5F571MFCDBG#20 optimized for gateway-class devices integrating Ethernet, CAN, and USB in a single chip.

FAQ

What is the maximum operating frequency and DMIPS rating of the R5F571MFCDBG#20?

The R5F571MFCDBG#20 operates at a maximum frequency of 240 MHz and delivers 480 DMIPS (Dhrystone MIPS) performance. This is achieved using the RXv2 CPU core with a 5-stage pipeline, single-cycle 32×32 multiplier, and efficient instruction set. The R5F571MFCDBG#20 maintains this performance across its full temperature range (–40°C to +85°C) with appropriate power supply decoupling and thermal design.

Does the R5F571MFCDBG#20 support IEEE 1588 Precision Time Protocol?

Yes, the R5F571MFCDBG#20 includes dedicated hardware for IEEE 1588-2008 compliance via the EPTPC (Precision Time Protocol Controller) module, tightly coupled to its dual Ethernet MAC (ETHERC). This enables hardware timestamping of Ethernet frames with sub-microsecond resolution, essential for time-synchronized industrial automation networks. The R5F571MFCDBG#20 does not require external timestamping assist circuitry.

What package type and pin count does the R5F571MFCDBG#20 use?

The R5F571MFCDBG#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. It provides 127 general-purpose I/O pins, including 19 with 5-V tolerance, and supports all RX71M peripherals including dual Ethernet, high-speed USB, and three CAN interfaces. This package is distinct from smaller 144- and 100-pin variants in the same family.

How many A/D converter channels does the R5F571MFCDBG#20 include, and what resolution options are available?

The R5F571MFCDBG#20 integrates two independent 12-bit A/D converter units: S12ADC unit 0 with 8 channels and unit 1 with 21 channels, totaling 29 analog inputs. Each unit supports selectable resolution of 8, 10, or 12 bits, with minimum conversion times of 0.42 µs (8-bit), 0.45 µs (10-bit), and 0.48 µs (12-bit) per channel. Both units feature self-diagnostic and analog disconnection detection functions.

Is high-speed USB 2.0 supported on the R5F571MFCDBG#20, and what are its key capabilities?

Yes, the R5F571MFCDBG#20 includes the USBAa module supporting high-speed USB 2.0 (480 Mbps) host and function operation, with integrated transceiver and 8.5 KB on-chip RAM buffer. It supports OTG, battery charging detection (BC1.2), and full-speed (12 Mbps) and low-speed (1.5 Mbps) fallback. This capability is exclusive to 176-/177-pin RX71M packages - the R5F571MFCDBG#20 is one of only two variants offering this feature.