Renesas R5F5671CHGLK#20

Overview

R5F5671CHGLK#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 R5F5671CHGLK#20 datasheet, R5F5671CHGLK#20 pinout, R5F5671CHGLK#20 application, or R5F5671CHGLK#20 equivalent, key selection criteria include its 145-pin TFLGA (0.65 mm pitch) package, -40°C to +105°C G-grade temperature rating, TSIP-based AES256/SHA256 encryption, and IEC60730-compliant self-diagnostic features for functional safety-critical firmware execution.

Technical Context

The R5F5671CHGLK#20 implements the RXv3 CPU core with 113 instructions, 16 general-purpose 32-bit registers, and hardware-accelerated DSP operations including 32×32→64-bit multiply and 32/32→32-bit divide. Its memory subsystem supports no-wait access to SRAM at 120 MHz and 1-wait access to flash at full speed, enabled by an 8 KB ROM cache and dual-bank flash architecture allowing background programming during execution.

Peripherals are clocked independently: PCLKA drives MTU3a, RSPI, and RIICHS up to 120 MHz; PCLKB clocks TPUa, CMT, and WDTA up to 60 MHz; ADCLK for S12AD units runs at up to 60 MHz; and QSPIX operates synchronously with ICLK at 120 MHz - enabling concurrent high-speed serial memory fetch, analog acquisition, and motor control PWM generation without bus contention.

Key Specifications

Pinout & Package

Package: TFLGA-145 (PTLG0145JC-A), 9 × 9 mm body, 0.65 mm pitch, 145-terminal land grid array with exposed thermal pad.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F5671CHGLK#20, the R5F5671EHGLK#20 offers identical architecture at reduced temperature and memory specs - ideal for cost-sensitive D-grade designs - while the R5F566TEHGLF#20 trades security and connectivity for higher PWM resolution and motor-specific peripherals, making it unsuitable for HMI or metering but superior for real-time motion control.

Availability

R5F5671CHGLK#20 is available at Aetrix Electronics and suitable for industrial HMI, smart metering, programmable logic controllers, and home energy gateways requiring stable component supply across extended temperature and long product lifecycles.

Supply support for R5F5671CHGLK#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, power, and SoC solutions for automotive, industrial, and IoT markets.

The RX671 Group targets high-integrity industrial applications demanding functional safety, secure firmware execution, and rich connectivity - designed specifically for smart meters, HMI, and gateway devices needing IEC60730 compliance and cryptographic acceleration.

FAQ

What is the operating temperature range of the R5F5671CHGLK#20?

The R5F5671CHGLK#20 is a G-grade device rated for -40°C to +105°C ambient operation, validated across the full range for industrial applications such as smart meters and factory HMIs where thermal stability is critical. This specification is defined in the official Renesas datasheet R01DS0373EJ0120 and applies to all electrical parameters unless otherwise noted in the device's DC characteristics table.

Does the R5F5671CHGLK#20 support secure boot and firmware authentication?

Yes, the R5F5671CHGLK#20 integrates Trusted Secure IP (TSIP) with hardware-accelerated AES256, SHA256, and TRNG, enabling secure boot verification and authenticated firmware updates. The TSIP module protects cryptographic keys from extraction and supports secure key storage, making R5F5671CHGLK#20 compliant with IEC62443-3-3 SL2 requirements for secure firmware deployment.

Can the R5F5671CHGLK#20 execute code directly from external serial flash?

Yes, the R5F5671CHGLK#20 supports execute-in-place (XIP) from external serial flash via its QSPIX interface, which implements quad-SPI, dual-SPI, and extended SPI protocols. This capability allows R5F5671CHGLK#20 to run application code directly from external memory without loading into internal SRAM, reducing boot latency and memory footprint in resource-constrained designs.

How many CAN channels does the R5F5671CHGLK#20 include, and what protocol versions are supported?

The R5F5671CHGLK#20 integrates two independent CAN modules compliant with ISO 11898-1, supporting both standard (11-bit) and extended (29-bit) frame formats. Each channel provides 32 configurable mailboxes with flexible acceptance filtering, enabling robust multi-node industrial networking in applications like PLC backplanes and building automation systems using R5F5671CHGLK#20.

Is the R5F5671CHGLK#20 pin-compatible with other RX671 variants?

Yes, the R5F5671CHGLK#20 uses the PTLG0145JC-A 145-pin TFLGA package (9 × 9 mm, 0.65 mm pitch), which is mechanically and electrically identical to other RX671 devices in the same package variant - including R5F5671EHGLK#20 and R5F5671DHGLK#20. Pin functions and power sequencing requirements are fully compatible, enabling drop-in replacement within the same temperature and memory grade constraints.