Renesas R5F5671EHDLJ#20

Overview

R5F5671EHDLJ#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, SDHI, 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 R5F5671EHDLJ#20 datasheet, R5F5671EHDLJ#20 pinout, R5F5671EHDLJ#20 application, or R5F5671EHDLJ#20 equivalent, key selection criteria include its 145-pin TFLGA (0.65 mm pitch) package, IEC60730-compliant safety features, TSIP-based AES256/SHA256 encryption, and RTC with battery-backed operation for time-critical embedded logging.

Technical Context

The R5F5671EHDLJ#20 implements the RXv3 CPU core with 113 instructions, including 21 double-precision floating-point operations and DSP extensions, enabling deterministic real-time execution at 707 CoreMark. Its memory subsystem integrates dual-bank flash for safe over-the-air updates and 384 KB zero-wait-state SRAM for high-throughput data buffering.

Peripherals are clocked independently: PCLKA drives MTU3a and RIICHS at up to 120 MHz; PCLKB clocks TMRb, CMT, and S12AD at up to 60 MHz; ADCLK for S12AD units runs at ≤60 MHz. The ELC enables hardware-triggered timer-to-A/D or GPIO-to-PWM event chaining without CPU intervention.

Key Specifications

Pinout & Package

Package: TFLGA-145 (PTLG0145JC-A), 9 × 9 mm, 0.65 mm pitch, 145-terminal land grid array with exposed thermal pad. Pinout validated per Renesas R01DS0373EJ0120 Rev.1.20, Table 1.2 (Function Mapping for 145-pin TFLGA).

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F5671EHDLJ#20, the R5F5670EDHLJ#20 reduces security and memory headroom but lowers BOM cost, while the R5F566TEHDFP#30 trades broad peripheral coverage for specialized motor-control timing - making R5F5671EHDLJ#20 optimal for balanced HMI + connectivity + security workloads.

Availability

R5F5671EHDLJ#20 is available at Aetrix Electronics and suitable for industrial HMI, smart metering, home automation gateways, and medical diagnostic devices requiring stable component supply, long-term lifecycle assurance, and traceable sourcing.

Supply support for R5F5671EHDLJ#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, delivering microcontrollers, analog, power, and SoC solutions for automotive, industrial, and IoT markets.

The RX671 Group targets high-integrity industrial applications demanding real-time performance, functional safety, and hardware security - with R5F5671EHDLJ#20 positioned as the flagship variant offering maximum flash, TSIP, and peripheral integration in the 145-pin TFLGA package.

FAQ

What is the maximum operating frequency and CoreMark score of the R5F5671EHDLJ#20?

The R5F5671EHDLJ#20 operates at a maximum frequency of 120 MHz and achieves 707 CoreMark points under benchmark conditions. This performance stems from its RXv3 CPU core with dual-issue capability, 32-bit multiplier/divider, and barrel shifter - all confirmed in Renesas R01DS0373EJ0120 Rev.1.20 Section 1.1. The R5F5671EHDLJ#20 sustains this speed across its 384 KB SRAM and dual-bank flash with zero wait states below 60 MHz.

Does the R5F5671EHDLJ#20 support secure firmware updates and cryptographic operations?

Yes, the R5F5671EHDLJ#20 integrates Trusted Secure IP (TSIP) with hardware-accelerated AES128/192/256, SHA256, ECC, and a true random number generator. It supports secure boot, encrypted firmware updates, and key protection - verified in Section 1.1 and Section 27 of R01DS0373EJ0120 Rev.1.20. These capabilities make the R5F5671EHDLJ#20 compliant with IEC62443-3-3 for secure device identity and firmware integrity.

What package type and pin count does the R5F5671EHDLJ#20 use?

The R5F5671EHDLJ#20 uses a PTLG0145JC-A package: a 145-terminal TFLGA (Thin Fine-Pitch Land Grid Array) measuring 9 × 9 mm with 0.65 mm pitch and an exposed thermal pad. It provides 111 general-purpose I/O pins with 5-V tolerance, open-drain capability, and programmable pull-ups - detailed in Table 1.2 of R01DS0373EJ0120 Rev.1.20.

Which communication interfaces are integrated into the R5F5671EHDLJ#20?

The R5F5671EHDLJ#20 integrates CAN (2 channels, ISO11898-1), USB 2.0 FS host/function/OTG, SD host interface (SDHI), Quad-SPI (QSPIX), 13-channel SCI/SCIh/SCIm, 2-channel RSCI with Manchester encoding, 3-channel RIIC/RIICHS (up to 3.4 Mbps), and RSPI/QSPI peripherals. All are documented in Sections 1.1 and 2.2 of R01DS0373EJ0120 Rev.1.20 - enabling robust multi-protocol connectivity in edge devices.

How does the R5F5671EHDLJ#20 support functional safety standards like IEC60730?

The R5F5671EHDLJ#20 includes dedicated IEC60730 Class B compliance features: oscillation-stop detection, hardware CRC accelerator (CRCA), independent watchdog timer (IWDTa) with window function, A/D self-diagnostic mode, and register write protection. These are explicitly listed in Section 1.1 "Useful functions for IEC60730 compliance" of R01DS0373EJ0120 Rev.1.20 - enabling certified appliance control without external safety monitors.