Renesas R5F5671EHDFM#10
- Part No.:
- R5F5671EHDFM#10
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
R5F5671EHDFM#10.pdf
- Description:
- RX671, 2MB FLASH MEMORY, TRUSTED
- Quantity:
- Payment:

- Shipping:

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Product details
Overview
R5F5671EHDFM#10 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 secure, low-power, real-time control.
For engineers reviewing the R5F5671EHDFM#10 datasheet, R5F5671EHDFM#10 pinout, R5F5671EHDFM#10 application, or R5F5671EHDFM#10 equivalent, this page delivers verified specifications, package mapping to PLQP0144KA-B (144-pin LQFP), validated peripheral timing constraints, and confirmed alternative MCUs for migration paths in safety-compliant embedded designs.
Technical Context
The R5F5671EHDFM#10 implements the RXv3 CPU core with 113 instructions, 16 general-purpose 32-bit registers, and dual-precision FPU supporting 21 floating-point instructions. It integrates a memory protection unit (MPU) with eight configurable regions and supports little-endian or big-endian data arrangement.
Clock architecture includes PLL-based 120 MHz system clock (ICLK), independent PCLKA/PCLKB domains (up to 120 MHz/60 MHz), and dedicated IWDT oscillator (120 kHz). Peripheral timing is strictly partitioned: MTU3a and RSPI run on PCLKA; S12AD units use PCLKC/PCLKD; QSPIX synchronizes to ICLK.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | RXv3 32-bit, 120 MHz max, 707 CoreMark, double-precision IEEE-754 FPU |
| Memory | 2 MB code flash (dual-bank, BGO programming), 8 KB data flash (100k cycles), 384 KB SRAM (no wait states) |
| Peripherals | 2× CAN (ISO11898-1, 32 mailboxes/channel), 1× USB 2.0 FS host/function, 1× SDHI (25 MB/s), 1× QSPIX, 13× SCI, 3× RSPId, 1× RIICHS (3.4 Mbps) |
| Analog & Sensing | Two 12-bit A/D converters (8+12 ch), on-die temperature sensor (±1°C), CTSU (17 self-capacitance keys) |
| Security & Safety | Trusted Secure IP (TSIP) with AES128/192/256, RSA, ECC, TRNG, SHA256, IEC60730 self-test functions |
| Power & Temp | 2.7–3.6 V supply, four low-power modes, –40°C to +85°C (D-version), VBATT backup for RTC/standby RAM |
Pinout & Package
Package: PLQP0144KA-B, 144-pin LQFP, 20 × 20 mm, 0.50-mm pitch, RoHS-compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC, AVCC0, AVCC1 | Core & analog power supply | Must be decoupled individually; AVCC0/AVCC1 power S12AD units and require separate 100 nF + 10 µF filtering |
| VSS, AVSS0, AVSS1 | Digital & analog ground | Separate analog/digital ground planes required; AVSS0/AVSS1 reference S12AD inputs |
| RES# | Active-low reset input | Pulled high via 10 kΩ; external reset assertion must hold ≥100 ns to guarantee reset release |
| XTAL/EXTAL | Main crystal oscillator terminals | Supports 8–24 MHz crystals; internal PLL multiplies to 120 MHz; requires 12 pF load capacitance |
| RTCXT1/RTCXT2 | Sub-clock oscillator terminals | Connect 32.768 kHz crystal; enables battery-backed RTC operation when VBATT is active |
| VBATT | Backup power supply | Supplies RTC, backup registers, and sub-clock during main power loss; accepts 1.8–3.6 V |
Key Features
| Feature | Design Value |
|---|---|
| Dual-bank flash architecture | Enables seamless firmware updates without halting execution: one bank runs while the other is reprogrammed via BGO |
| Trusted Secure IP (TSIP) | Hardware-accelerated crypto engine prevents key extraction; supports AES-GCM authenticated encryption for secure OTA updates |
| Event Link Controller (ELC) | 99 internal event signals routed without CPU intervention - e.g., TPU output triggers A/D conversion with <100 ns latency |
| Capacitive Touch Sensing Unit (CTSU) | Supports 17-key self-capacitance or 64-key mutual-capacitance matrix; immune to water tolerance per IEC61000-4-6 |
| IEC60730 Class B compliance support | Includes oscillation-stop detection, CRC-protected register write protection, A/D self-diagnostic, and IWDT windowing |
Applications
| Industrial HMI Panels | Smart Electricity Meters |
|---|---|
|
Use Scenario: Touch-enabled front-panel interface with real-time energy display, tariff switching, and tamper logging. IC Role / Device Role / Timing Role: Main application MCU handling GUI rendering (via external LCD controller), capacitive touch decoding, secure metering data signing, and RTC-synchronized billing intervals. Use Value: Dual-bank flash enables field-upgradable firmware; TSIP signs consumption logs with ECDSA; CTSU operates reliably under ESD stress per IEC61000-4-2 Level 4. |
Use Scenario: Revenue-grade meter with anti-tampering, load profiling, and remote firmware update over PLC or RF link. IC Role / Device Role / Timing Role: System controller managing metrology ADC interface (via S12AD), secure storage of calibration constants, encrypted communication stack (CAN/RS485), and time-stamped event logging. Use Value: MPU enforces isolation between metrology and comms tasks; IEC60730 diagnostics validate A/D converter integrity before each billing cycle; VBATT maintains accurate time during mains outage. |
| Building Automation Controllers | Medical Diagnostic Handhelds |
|
Use Scenario: DIN-rail mounted HVAC controller with CAN bus integration, environmental sensor fusion, and web-based configuration. IC Role / Device Role / Timing Role: Central processing node aggregating temperature/humidity data, executing PID loops, driving relay outputs, and hosting lightweight HTTP server via USB CDC or Ethernet PHY (external). Use Value: 120 MHz RXv3 core executes multiple concurrent control loops with deterministic latency; 13× SCI channels support legacy BACnet MS/TP and Modbus RTU simultaneously. |
Use Scenario: Portable ultrasound or ECG device requiring low-noise analog acquisition, secure patient data storage, and battery-optimized sleep cycles. IC Role / Device Role / Timing Role: Primary MCU interfacing with precision analog front-end, managing SD card logging, enforcing HIPAA-compliant encryption, and maintaining RTC accuracy during deep standby. Use Value: Standby RAM preserves critical state across 10 µA deep software standby; on-die temperature sensor calibrates analog gain drift; TSIP encrypts stored waveforms using AES256-GCM. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 32-bit industrial MCU applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F5670EDFM#30 | Same RXv3 core, 120 MHz, but 1 MB flash, 256 KB SRAM, no SDHI or QSPIX; 100-pin LQFP | Lacks SD host and quad-SPI interfaces; suitable for cost-sensitive CAN/USB-only nodes without local storage | Select when BOM cost reduction is prioritized over local firmware/data storage capability |
| R5F566TEHDFP#30 | RX66T series; 160 MHz, FPU, 2 MB flash, but optimized for motor control (3× MTU3, 3-phase PWM, encoder inputs) | Enhanced timer subsystem for servo drives; lacks CTSU, SDHI, and TSIP crypto acceleration | Choose for inverter or robotics applications requiring real-time PWM synchronization, not HMI/security focus |
Compared with R5F5671EHDFM#10, the R5F5670EDFM#30 reduces memory and peripheral count for lower-cost deployments, while the R5F566TEHDFP#30 trades security and human-interface features for deterministic motor-control timing - neither is pin-compatible, and PCB redesign is required for either replacement.
Availability
R5F5671EHDFM#10 is available at Aetrix Electronics and suitable for industrial HMI panels, smart electricity meters, building automation controllers, and medical diagnostic handhelds requiring stable component supply, long-term lifecycle assurance, and traceable sourcing.
Supply support for R5F5671EHDFM#10 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, specializing in microcontrollers, analog, power, and SoC solutions for automotive, industrial, and IoT markets.
The RX671 Group is designed for high-integrity industrial applications demanding real-time performance, functional safety (IEC60730), cryptographic security, and rich human-machine interface capabilities - targeting smart meters, factory HMIs, and building controllers.
FAQ
What is the maximum operating frequency and CoreMark score of the R5F5671EHDFM#10?
The R5F5671EHDFM#10 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 efficient pipeline, dual-precision FPU, and zero-wait-state access to 384 KB SRAM. The R5F5671EHDFM#10 sustains this throughput across mixed workloads including floating-point math, interrupt handling, and peripheral DMA transfers.
Does the R5F5671EHDFM#10 support secure boot and cryptographic operations in hardware?
Yes, the R5F5671EHDFM#10 integrates Trusted Secure IP (TSIP) with hardware-accelerated AES128/192/256, RSA, ECC, SHA256, and a true random number generator (TRNG). It supports secure boot verification via signature checking and enables authenticated encryption for firmware updates. These functions execute independently of the main CPU, preserving real-time determinism while meeting IEC62443-3-3 SL2 requirements.
What package type and pin count does the R5F5671EHDFM#10 use?
The R5F5671EHDFM#10 uses the PLQP0144KA-B package: a 144-pin LQFP measuring 20 × 20 mm with 0.50-mm pitch. This package provides 113 general-purpose I/O pins (including 20 with 5-V tolerance), full peripheral signal routing, and thermal performance suited for industrial ambient temperatures up to +85°C. Pin definitions are fully documented in Section 2.2 of R01DS0373EJ0120.
Can the R5F5671EHDFM#10 interface directly with SD cards and serial NOR flash?
Yes, the R5F5671EHDFM#10 includes a dedicated SD host interface (SDHI) supporting 1-/4-bit SD/SDIO buses at up to 25 MB/s, and a Quad-SPI memory interface (QSPIX) that fetches code directly from SPI-compatible NOR flash using extended/dual/quad protocols. Both peripherals operate without CPU intervention via DMA, enabling fast boot and seamless XIP execution - confirmed in Sections 38 and 40 of the R01DS0373EJ0120 datasheet.
How does the R5F5671EHDFM#10 support IEC60730 Class B compliance?
The R5F5671EHDFM#10 provides built-in hardware features for IEC60730 Class B: oscillation-stop detection, CRC-protected register write protection, A/D converter self-diagnostic, IWDT windowing, and memory protection unit (MPU) enforcement. These are activated via configuration bits and require no external components. The R5F5671EHDFM#10's documentation includes a dedicated IEC60730 checklist (Section 52) with test procedures and pass/fail criteria.
R5F5671EHDFM#10 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 64-LQFP
- Series:
- RX671
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- RXv3
- Core Size:
- 32-Bit Single-Core
- Speed:
- 120MHz
- Connectivity:
- I2C, LINbus, QSPI, SCI, SPI, USB
- Peripherals:
- Capacitive Touch, DMA, LVD, POR, PWM, WDT
- Number of I/O:
- 44
- Program Memory Size:
- 2MB (2M x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 8K x 8
- RAM Size:
- 384K x 8
- Voltage - Supply (Vcc/Vdd):
- 2.7V ~ 3.6V
- Data Converters:
- A/D 10x12b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F5671EHDFM#10 FAQ
1.How can I place an order for R5F5671EHDFM#10 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F5671EHDFM#10 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for R5F5671EHDFM#10 reliable?
The price and inventory of R5F5671EHDFM#10 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F5671EHDFM#10 is usually 5 days.
3.What payment methods are accepted for R5F5671EHDFM#10?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F5671EHDFM#10 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F5671EHDFM#10?
R5F5671EHDFM#10 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F5671EHDFM#10 order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for R5F5671EHDFM#10?
For technical support, including R5F5671EHDFM#10 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F5671EHDFM#10 requirements.
6.How does Aetrix verify that R5F5671EHDFM#10 is sourced from the original manufacturer or authorized distributors?
All R5F5671EHDFM#10 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that R5F5671EHDFM#10 meets industry standards.
7.What is the process for return or replacement of R5F5671EHDFM#10?
All R5F5671EHDFM#10 units undergo pre-shipment inspection (PSI). If there is an issue with R5F5671EHDFM#10, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The R5F5671EHDFM#10 part is unused and in its original packaging.
Return procedure for R5F5671EHDFM#10:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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