Renesas R5F5671CDDFM#30

Overview

R5F5671CDDFM#30 from Renesas is a 32-bit RXv3 microcontroller operating at up to 120 MHz, featuring double-precision IEEE-754 FPU, 1 MB on-chip code flash, 384 KB SRAM, and integrated CAN, USB 2.0 FS, SD host interface, QSPIX, and capacitive touch sensing unit - deployed in industrial HMI, smart metering, and secure IoT edge nodes.

For engineers reviewing the R5F5671CDDFM#30 datasheet, R5F5671CDDFM#30 pinout, R5F5671CDDFM#30 application, or R5F5671CDDFM#30 equivalent, key selection criteria include its 120-MHz real-time performance with 707 CoreMark, dual-bank flash for safe firmware updates, TSIP-based AES256/SHA256 encryption, and 114 GPIOs with 5-V tolerance - critical for deterministic control and secure field-upgradable designs.

Technical Context

The R5F5671CDDFM#30 implements the RXv3 CPU core with collective register bank save, memory protection unit (MPU), and JTAG/FINE debug interfaces. It integrates dual-clock domain operation: 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 peripherals including S12AD units.

Its peripheral architecture includes EXDMACa (2-channel extended DMA), DTCb (1-channel data transfer controller), and DMACAb (8-channel DMA), enabling concurrent high-bandwidth transfers across USB, SDHI, and serial interfaces. The CTSUa supports both self- and mutual-capacitance touch sensing with up to 64 keys, while the TSIP module provides hardware-accelerated cryptographic operations including TRNG, RSA, ECC, and prevention of illicit key copying.

Key Specifications

Pinout & Package

Package: PLQP0144KA-B (144-pin LQFP, 20 × 20 mm, 0.50-mm pitch). Pin count and I/O configuration align with 114 general-purpose ports, including 20 pins with 5-V tolerance, full-swing CMOS outputs, programmable pull-up, and open-drain capability.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar microcontroller applications.

Compared with R5F5671CDDFM#30, the R5F5670EDDFM#30 offers higher flash density for complex firmware, while the R5F566TEADFP#30 trades security and connectivity for raw motor-control throughput - making R5F5671CDDFM#30 optimal for secure, connected, multi-interface edge nodes requiring balanced performance and features.

Availability

R5F5671CDDFM#30 is available at Aetrix Electronics and suitable for industrial HMI, smart metering, and secure IoT edge nodes requiring stable component supply, long-term lifecycle assurance, and traceable sourcing.

Supply support for R5F5671CDDFM#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 Corporation is a global semiconductor leader delivering trusted embedded solutions for automotive, industrial, infrastructure, and IoT applications.

The RX671 Group targets secure, connected industrial edge devices - combining real-time MCU performance, hardware security (TSIP), and rich connectivity (CAN, USB, SDHI, QSPIX) to accelerate development of certified, field-upgradable systems.

FAQ

What is the maximum operating frequency and CoreMark score of the R5F5671CDDFM#30?

The R5F5671CDDFM#30 operates at a maximum frequency of 120 MHz and achieves 707 CoreMark. This performance stems from the RXv3 CPU core's optimized pipeline, collective register bank save, and zero-wait-state access to 384 KB SRAM. The R5F5671CDDFM#30 sustains this speed across code fetches from flash (with ROM cache hit) and all SRAM accesses - enabling deterministic real-time execution in demanding industrial control applications.

Does the R5F5671CDDFM#30 support secure boot and cryptographic acceleration?

Yes, the R5F5671CDDFM#30 integrates Trusted Secure IP (TSIP) supporting AES128/192/256, SHA1/224/256, RSA, ECC, and a true random number generator (TRNG). It enables secure boot via flash read protection and trusted memory (TM) functions. The R5F5671CDDFM#30 uses hardware-accelerated crypto engines to offload TLS, firmware signature verification, and key management - meeting IEC60730 Class B and PSA Certified Level 1 requirements without software-only overhead.

What package type and pin count does the R5F5671CDDFM#30 use?

The R5F5671CDDFM#30 uses the 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-up resistors, and open-drain capability. This package is footprint-compatible with other RX671 variants in the same LQFP family, simplifying migration across flash-size options.

Can the R5F5671CDDFM#30 interface directly with SD cards and serial flash memory?

Yes, the R5F5671CDDFM#30 includes a full-featured SD host interface (SDHI) supporting 1-/4-bit buses and high-speed mode (25 MB/s), compliant with SD Physical Layer v3.01 and SDIO v3.00. It also integrates QSPIX - a dedicated quad-SPI interface supporting extended/dual/quad protocols for direct code/data fetch from serial NOR flash. Both interfaces are fully supported in Renesas' FSP and e2 studio toolchain, and the R5F5671CDDFM#30 requires no external level shifters or glue logic.

What low-power capabilities does the R5F5671CDDFM#30 offer for battery-backed applications?

The R5F5671CDDFM#30 supports four low-power modes - Sleep, All-module Clock Stop, Software Standby, and Deep Software Standby - with current consumption as low as 0.25 µA in deep standby. Its VBATT pin powers the RTC, backup registers, and sub-clock oscillator during main power loss, maintaining timekeeping and tamper detection. The R5F5671CDDFM#30 also features independent voltage monitoring (LVDA) with configurable thresholds and interrupt generation, enabling robust brown-out recovery in energy-harvesting or battery-operated systems.