Renesas R5F5671EDGLE#20

Overview

R5F5671EDGLE#20 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 and smart metering systems requiring real-time control and secure firmware updates.

For engineers reviewing the R5F5671EDGLE#20 datasheet, R5F5671EDGLE#20 pinout, R5F5671EDGLE#20 application, or R5F5671EDGLE#20 equivalent, key selection criteria include its 145-pin TFLGA (0.65-mm pitch) package, TSIP-based AES256/SHA256 encryption, IEC60730-compliant self-test features, and RTC with battery-backed operation - all validated for extended-temperature (–40°C to +105°C) embedded deployments.

Technical Context

The R5F5671EDGLE#20 implements the RXv3 CPU core with 16 general-purpose 32-bit registers, double-precision FPU (16×64-bit data registers), and collective register bank save for deterministic interrupt latency. Its clock system supports independent domain scaling: 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.

Peripheral integration follows a modular, event-driven architecture: the Event Link Controller (ELC) enables 99 internal signal interlinks (e.g., TPU output triggering A/D conversion), while EXDMACa provides two high-bandwidth DMA channels with cluster transfer for time-critical sensor or audio streaming - critical for deterministic real-time response without CPU intervention.

Key Specifications

Pinout & Package

Package: TFLGA-145 (PTLG0145JC-A), 9 × 9 mm, 0.65-mm pitch, 111 I/O pins (20 with 5-V tolerance), 1 VCC/AVCC pair, 1 VBATT, 1 RES#, 1 sub-clock input (X1), and dedicated TSIP/USB/SDHI/QSPIX signal groups.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F5671EDGLE#20, the R5F5670EDNLE#20 reduces peripheral count and memory to lower cost and size, while the R5F566TEADFP#30 shifts focus to motor control with enhanced timers but omits security and HMI features - making R5F5671EDGLE#20 optimal for secure, storage-enabled, touch-integrated industrial edge devices.

Availability

R5F5671EDGLE#20 is available at Aetrix Electronics and suitable for industrial HMI, smart metering, home energy gateways, and PLC edge nodes requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for R5F5671EDGLE#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 is a global semiconductor leader specializing in microcontrollers, analog, and power solutions for automotive, industrial, and IoT markets.

The RX671 Group is designed for high-performance, secure, and functionally safe industrial applications - integrating real-time control, connectivity, cryptography, and human-machine interface capabilities in a single chip.

FAQ

What is the maximum operating frequency and CoreMark score of the R5F5671EDGLE#20?

The R5F5671EDGLE#20 operates at a maximum frequency of 120 MHz and achieves 707 CoreMark points under benchmark conditions. This performance stems from the RXv3 CPU core's single-cycle instruction execution, 16 general-purpose registers, and efficient pipeline design - enabling deterministic real-time response in industrial control loops. The R5F5671EDGLE#20 sustains this speed across its 384 KB SRAM and 2 MB flash with zero wait states below 60 MHz and only one wait state at full 120 MHz.

Does the R5F5671EDGLE#20 support secure boot and firmware authentication?

Yes, the R5F5671EDGLE#20 supports secure boot and firmware authentication via its Trusted Secure IP (TSIP) module, which provides hardware-accelerated AES256, SHA256, RSA, and ECC operations alongside true random number generation and protected key storage. These features enable cryptographic signature verification of firmware images before execution - a requirement for IEC60730 Class B compliance. The R5F5671EDGLE#20 implements this without software overhead, ensuring robust protection against unauthorized code injection.

What package type and pin count does the R5F5671EDGLE#20 use?

The R5F5671EDGLE#20 uses a 145-pin TFLGA package (PTLG0145JC-A) with 9 × 9 mm body size and 0.65-mm pitch. It provides 111 general-purpose I/O pins, of which 20 are 5-V tolerant, plus dedicated pins for USB, CAN, QSPIX, SDHI, and capacitive touch sensing. This compact, fine-pitch land-grid array supports high-density PCB layouts while maintaining thermal performance for extended-temperature operation from –40°C to +105°C - confirmed in the official Renesas datasheet R01DS0373EJ0120.

Can the R5F5671EDGLE#20 execute code directly from external serial flash memory?

Yes, the R5F5671EDGLE#20 can execute code directly from external serial flash memory using its QSPIX interface, which supports extended SPI, dual-SPI, and quad-SPI protocols with selectable address widths (8–32 bits). This XIP (execute-in-place) capability eliminates the need to copy firmware into internal RAM, conserving SRAM for application data and reducing boot time. The R5F5671EDGLE#20 configures QSPIX via dedicated registers and supports memory-mapped access - verified in Section 44 of the R01DS0373EJ0120 datasheet.

How does the R5F5671EDGLE#20 handle real-time clock functionality with power loss?

The R5F5671EDGLE#20 maintains real-time clock (RTC) operation during main power loss via its VBATT pin, which supplies the backup domain containing the sub-clock oscillator, RTC counter, and backup registers. When VCC drops, the device automatically switches to VBATT (typically 1.8–3.6 V) to sustain timekeeping and calendar functions - including leap-year correction and alarm interrupts. This behavior is documented in Section 27 of the R01DS0373EJ0120 datasheet and requires no firmware intervention, ensuring uninterrupted timestamping in smart meters and industrial loggers using the R5F5671EDGLE#20.