Renesas R5F5671CDGFM#30

Overview

R5F5671CDGFM#30 from Renesas is a 32-bit RXv3 microcontroller operating at up to 120 MHz, featuring double-precision IEEE-754 FPU, 2 MB on-chip code flash with dual-bank support, 384 KB SRAM, and integrated CAN, USB 2.0 FS, SD host interface, QSPIX, and capacitive touch sensing - deployed in industrial HMI, smart metering, and connected appliance control systems.

For engineers reviewing the R5F5671CDGFM#30 datasheet, R5F5671CDGFM#30 pinout, R5F5671CDGFM#30 application, or R5F5671CDGFM#30 equivalent, key selection criteria include its 120-MHz real-time performance (707 CoreMark), TSIP-based AES256/SHA256 encryption, IEC60730-compliant safety features, and 114 GPIOs with 5-V tolerance - critical for secure, low-power, mixed-signal embedded designs.

Technical Context

The R5F5671CDGFM#30 implements the RXv3 CPU core with 16 general-purpose 32-bit registers, double-precision FPU coprocessor (16×64-bit data registers), and collective register bank save function enabling fast context switching. It supports little-endian or big-endian data arrangement and executes instructions at one per system clock cycle.

Its clock architecture includes independent PLL, sub-clock oscillator (32.768 kHz), and dedicated 120-kHz IWDT oscillator. Peripheral clocks are decoupled: ICLK up to 120 MHz for CPU/QSPIX, PCLKA up to 120 MHz for MTU/RSPI/RIICHS, and PCLKB up to 60 MHz for most timers and A/D converters - enabling precise timing partitioning across subsystems.

Key Specifications

Pinout & Package

Package: PLQP0144KA-B (144-pin LQFP, 20 × 20 mm, 0.50-mm pitch). Pin count: 114 general-purpose I/Os with 5-V tolerance, open-drain capability, and programmable pull-up resistors.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F5671CDGFM#30, the R5F566TEADFP#30 reduces security and connectivity to lower cost, while the R5F572MDHDFP#30 trades power efficiency and pin compatibility for higher performance and industrial Ethernet - making R5F5671CDGFM#30 the optimal balance for secure, connected, low-power edge nodes.

Availability

R5F5671CDGFM#30 is available at Aetrix Electronics and suitable for industrial HMI, smart metering, and connected appliance control requiring stable component supply, long-term lifecycle assurance, and traceable sourcing.

Supply support for R5F5671CDGFM#30 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 RX671 Group targets secure, real-time industrial and consumer applications - designed to deliver high performance, functional safety (IEC60730), and hardware-accelerated cryptography in compact packages.

FAQ

What is the maximum operating frequency and CoreMark score of the R5F5671CDGFM#30?

The R5F5671CDGFM#30 operates at a maximum frequency of 120 MHz and achieves 707 CoreMark - measured under standard conditions with the RXv3 core executing the EEMBC benchmark. This performance reflects its optimized pipeline, double-precision FPU, and zero-wait-state access to 384 KB SRAM at full speed. The R5F5671CDGFM#30 sustains this throughput across real-world workloads involving floating-point math, interrupt handling, and peripheral I/O.

Does the R5F5671CDGFM#30 support secure boot and cryptographic acceleration?

Yes, the R5F5671CDGFM#30 integrates Trusted Secure IP (TSIP) supporting AES128/192/256, SHA256, RSA-2048, ECC, and a true random number generator (TRNG). These accelerators enable secure boot verification, encrypted firmware updates, and runtime key protection - all without CPU overhead. The R5F5671CDGFM#30 uses TSIP to enforce secure boot policies and prevent unauthorized code execution.

What package type and pin count does the R5F5671CDGFM#30 use?

The R5F5671CDGFM#30 is housed in a PLQP0144KA-B package: a 144-pin LQFP measuring 20 × 20 mm with 0.50-mm pitch. It provides 114 general-purpose I/O pins, including 20 with 5-V tolerance, programmable pull-ups, and open-drain capability. This package matches the pinout defined in Renesas' RX671 Group datasheet Rev.1.20 and supports industrial temperature range (–40°C to +85°C).

Can the R5F5671CDGFM#30 operate from a single power supply and retain RTC during power loss?

Yes, the R5F5671CDGFM#30 operates from a single 2.7–3.6 V supply and retains RTC functionality during main power loss via the VBATT pin. When VCC drops, the backup domain (sub-clock oscillator, RTC, and 32-byte backup registers) switches to VBATT, enabling continuous timekeeping and tamper-event logging. This behavior is confirmed in the "Battery Backup Function" section of the R01DS0373EJ0120 datasheet.

Which communication interfaces are supported by the R5F5671CDGFM#30 for industrial connectivity?

The R5F5671CDGFM#30 supports CAN (2 channels, ISO11898-1 compliant, 32 mailboxes each), USB 2.0 Full-Speed (host/device/OTG), SD host interface (SDIO/SD memory), QSPIX (quad-SPI flash fetch), and up to 13 serial channels (SCI/SCIm/RSCI) with LIN and Manchester encoding. These interfaces enable direct integration into industrial networks without external protocol bridges - a key capability of the R5F5671CDGFM#30 in gateway and edge-control applications.