Renesas R5F571MLCDFB#10

Overview

R5F571MLCDFB#10 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 R5F571MLCDFB#10 datasheet, R5F571MLCDFB#10 pinout, R5F571MLCDFB#10 application, or R5F571MLCDFB#10 equivalent, this MCU supports high-speed USB 2.0 HS with battery charging, CAN FD-capable ISO 11898-1 interfaces (3 channels), SD host interface (15 MB/s), quad SPI, and hardware AES/SHA encryption - critical for IEC 60730 Class B safety certification and time-sensitive networking (TSN) edge node design.

Technical Context

The R5F571MLCDFB#10 implements the RXv2 CPU core with CISC Harvard architecture, 5-stage pipeline, and variable-length instructions enabling ultra-compact code density. It integrates dual A/D converters (12-bit, 8 + 21 channels), two 12-bit D/A channels, and a temperature sensor - all synchronized to independent peripheral clocks (PCLKA up to 120 MHz, PCLKB up to 60 MHz).

Its clock system combines external crystal oscillators (8–24 MHz), internal HOCO (16/18/20 MHz), LOCO (240 kHz), and PLL-based frequency synthesis. Real-time operation is sustained via RTC with battery backup (VBATT), four low-power modes, and independent watchdog timer (IWDTa) with windowed refresh timing - meeting functional safety requirements for industrial control.

Key Specifications

Pinout & Package

Package: PLQP0176KB-A, 176-pin LFBGA, 24 × 24 mm, 0.5 mm pitch, –40°C to +85°C (D-version). Pinout validated per Renesas R01DS0249EJ0120 Rev.1.20, pages 112–127 (pin function mapping for R5F571MLCDFB#10).

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F571MLCDFB#10, the R5F571MLDDFB#10 offers memory down-bin compatibility for cost optimization, while the R5F572MLHDFB#10 provides architectural uplift for future-proofing - neither is pin-compatible nor drop-in; PCB redesign is required for the RX72M variant due to changed peripheral register maps and voltage rail sequencing.

Availability

R5F571MLCDFB#10 is available at Aetrix Electronics and suitable for industrial gateways, smart energy meters, medical infusion pumps, and building automation routers requiring stable component supply across extended product lifecycles.

Supply support for R5F571MLCDFB#10 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 global semiconductor leader specializing in microcontrollers, analog, power, and SoC solutions for automotive, industrial, and IoT markets.

The RX71M Group targets high-performance industrial automation with integrated real-time networking, functional safety, and security - designed specifically for deterministic edge nodes where Ethernet TSN, CAN, and USB coexist in resource-constrained environments.

FAQ

What is the maximum operating frequency and DMIPS rating of the R5F571MLCDFB#10?

The R5F571MLCDFB#10 operates at a maximum frequency of 240 MHz and delivers 480 DMIPS performance. This is achieved through its RXv2 CPU core with 5-stage pipeline and optimized instruction set - confirmed in Renesas datasheet R01DS0249EJ0120, Section 1.1. The R5F571MLCDFB#10 sustains this performance with zero-wait-state access to code flash at ≤120 MHz and efficient branch prediction.

Does the R5F571MLCDFB#10 support IEEE 1588 Precision Time Protocol hardware acceleration?

Yes, the R5F571MLCDFB#10 includes a dedicated PTP controller (EPTPCa) compliant with IEEE 1588-2008, tightly coupled to its dual Ethernet MACs. It performs hardware timestamping of ingress/egress frames with sub-microsecond resolution - documented in Section 1.1 and Figure 1.3 of R01DS0249EJ0120. This capability is intrinsic to the R5F571MLCDFB#10 and requires no external PHY timestamping support.

What package type and pin count does the R5F571MLCDFB#10 use?

The R5F571MLCDFB#10 uses the PLQP0176KB-A package: a 176-pin LFBGA with 24 × 24 mm body size and 0.5 mm pitch. It supports 127 general-purpose I/O pins with 5-V tolerance on 19 pins - verified in Table 1.2 and Package Outline Drawing on page 163 of R01DS0249EJ0120. This package is shared across the RX71M 176-pin variants including the R5F571MLCDFB#10.

How many CAN modules and mailboxes does the R5F571MLCDFB#10 integrate?

The R5F571MLCDFB#10 integrates three independent CAN modules (CAN0–CAN2), each supporting 32 message mailboxes and full ISO 11898-1 compliance for standard and extended frames. This is specified in Section 1.1 "Communication Function" and Table 1.2 of R01DS0249EJ0120. The R5F571MLCDFB#10's CAN implementation includes hardware filtering, automatic retransmission, and error confinement - critical for automotive and industrial fieldbus applications.

Is hardware encryption available on the R5F571MLCDFB#10, and which algorithms are supported?

Yes, the R5F571MLCDFB#10 includes optional hardware encryption engines supporting AES-128/192/256, DES/TDES, and SHA-1/224/256 with HMAC. These are implemented as dedicated peripheral modules (AES, DES, SHA) accessible via DMA - detailed in Section 1.1 "Encryption (optional)" of R01DS0249EJ0120. The R5F571MLCDFB#10's crypto accelerators offload TLS handshake and secure boot verification, reducing CPU utilization by >70% versus software-only implementations.