Renesas R5F5671CDGLE#20
- Part No.:
- R5F5671CDGLE#20
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 145-TFLGA
- Datasheet:
-
R5F5671CDGLE#20.pdf
- Description:
- IC MCU 32BIT 1.5MB FLSH 145TFLGA
- Quantity:
- Payment:

- Shipping:

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Product details
Overview
R5F5671CDGLE#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, smart metering, and secure IoT edge nodes.
For engineers reviewing the R5F5671CDGLE#20 datasheet, R5F5671CDGLE#20 pinout, R5F5671CDGLE#20 application, or R5F5671CDGLE#20 equivalent, key selection criteria include its 120-MHz real-time performance (707 CoreMark), hardware-accelerated TSIP encryption (AES256/ECC/SHA256), 12-bit dual A/D converters with self-diagnostic capability, and 114 GPIOs with 5-V tolerance - all within a 145-pin TFLGA package (7 × 7 mm, 0.50-mm pitch).
Technical Context
The R5F5671CDGLE#20 implements the RXv3 CPU core with 113 instructions, 16 general-purpose 32-bit registers, and double-precision FPU coprocessor supporting 21 dedicated instructions. It integrates memory protection unit (MPU) with eight configurable regions and supports little-endian or big-endian data arrangement.
Its clock system combines external crystal (8–24 MHz), sub-clock (32.768 kHz), and internal oscillators (LOCO/HOCO/IWDT-dedicated), enabling independent domain clocks: ICLK up to 120 MHz for CPU, PCLKA up to 120 MHz for MTU/RSPI/SCIm, PCLKB up to 60 MHz for most peripherals, and ADCLK up to 60 MHz for both S12AD units - ensuring precise timing isolation across mixed-criticality subsystems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | RXv3 32-bit, 120 MHz max - enables deterministic real-time control with 1-cycle instruction execution and 707 CoreMark performance |
| FPU | Double-precision IEEE-754 - supports high-accuracy sensor fusion, motor control algorithms, and floating-point math without software emulation |
| Flash Memory | 2 MB code flash with dual-bank structure - allows safe firmware updates via background programming while executing from alternate bank |
| SRAM | 384 KB on-chip SRAM, zero-wait-state at 120 MHz - eliminates cache coherency overhead for time-critical ISR and buffer handling |
| A/D Converter | Dual 12-bit S12AD (8 + 12 channels), 0.48 µs conversion - delivers synchronized sampling for multi-sensor monitoring with built-in disconnection detection |
| Security | Trusted Secure IP (TSIP) with AES256/ECC/SHA256/TRNG - provides hardware-rooted cryptographic services compliant with IEC60730 Class B |
| Package | TFLGA-145 (7 × 7 mm, 0.50-mm pitch) - supports high-density PCB layout with 113 GPIOs, 20 of which are 5-V tolerant |
Pinout & Package
Package: TFLGA-145 (PTLG0145KB-A), 7 × 7 mm body, 0.50-mm pitch, 145-terminal land grid array with exposed thermal pad.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC / AVCC0 / AVCC1 | Core & analog power supply | Single 2.7–3.6 V supply powers digital logic and dual ADC domains; decoupling required per datasheet layout guidelines |
| VBATT | Backup power input | Enables RTC and backup registers to retain state during main power loss - critical for energy meter timestamping and tamper logging |
| XTAL / EXTAL | Main clock oscillator terminals | Supports 8–24 MHz crystal for high-accuracy system timing; optional external clock input up to 30 MHz |
| RTCIN / RTCOUT | Sub-clock oscillator terminals | Connects 32.768 kHz crystal for battery-backed real-time clock with leap-year and error-adjustment functions |
| USB_DP / USB_DM | USB 2.0 full-speed differential pair | Integrated transceiver supports host/function/OTG modes without external PHY - reduces BOM cost for embedded USB peripherals |
| TXD0 / RXD0 | SCI channel 0 serial interface | Asynchronous UART interface with programmable baud rate generator - used for debug console, bootloader, or field service communication |
| CTSU00–CTSU16 | Capacitive touch sensing inputs | 17 dedicated pins support self-capacitance (17 keys) or mutual-capacitance matrix (64 keys) - enables robust touch HMI without external controller |
| TSIP_CLK / TSIP_DAT / TSIP_EN | Trusted Secure IP control signals | Hardware-managed crypto engine interface - offloads AES/ECC operations from CPU, preserving deterministic latency for safety-critical tasks |
Key Features
| Feature | Design Value |
|---|---|
| Event Link Controller (ELC) | 99 internal event signals routed without CPU intervention - enables hardware-synchronized PWM generation, ADC triggering, and GPIO toggling for jitter-free timing |
| MTU3a Timer Unit | 9-channel multifunction timer with complementary PWM, dead-time insertion, and 3-phase inverter control - supports motor drive applications with automatic waveform alignment |
| SD Host Interface (SDHI) | 1-channel SDIO/SD memory controller supporting 4-bit bus and high-speed mode (25 MB/s) - enables local data logging and firmware storage without external NAND controller |
| QSPIX Interface | Quad-SPI memory interface with 8/16/24/32-bit address width - allows direct XIP execution from external serial flash, reducing boot time and memory footprint |
| IEC60730 Compliance Support | Oscillation-stop detection, CRC-A, IWDTa, A/D self-test, and register write protection - satisfies Class B functional safety requirements for household appliances and industrial controls |
Applications
| Industrial HMI Panel | Smart Energy Meter |
|---|---|
Use Scenario: Touch-enabled display panel with real-time data visualization, button feedback, and local configuration storage. IC Role / Device Role / Timing Role: Main application processor managing CTSU touch input, SSIE audio output, USB device interface, and SDHI-based firmware update partition. Use Value: Integrated 17-key capacitive touch sensing eliminates external controller; dual 12-bit A/D monitors auxiliary sensors; TSIP secures OTA update integrity. | Use Scenario: Revenue-grade electricity meter with time-of-use billing, tamper detection, and remote communication via CAN or USB. IC Role / Device Role / Timing Role: System-on-chip controller handling RTC timestamping, metrology ADC sampling, CAN protocol stack, and secure key management for tariff encryption. Use Value: Battery-backed RTC maintains accurate time across power outages; MPU enforces separation between metrology and communication firmware; TSIP prevents unauthorized firmware modification. |
| Secure IoT Gateway | Motor Control Edge Node |
Use Scenario: Low-power gateway aggregating sensor data from Modbus/RS485 networks and forwarding via USB or SD card to cloud-connected host. IC Role / Device Role / Timing Role: Central hub MCU running RTOS, managing multiple SCI/RSPI interfaces, performing TLS handshake acceleration via TSIP, and buffering logs in SDHI. Use Value: Hardware crypto engine accelerates SHA256/AES256 for TLS 1.2; 2 MB flash stores dual firmware images; 114 GPIOs support flexible peripheral expansion. | Use Scenario: Brushless DC motor driver with position sensing, current feedback, and field-oriented control (FOC) loop execution. IC Role / Device Role / Timing Role: Real-time motion controller using MTU3a for 3-phase PWM generation, TPUa for encoder input capture, and S12AD for current sensing with <0.5 µs latency. Use Value: Complementary PWM with programmable dead time prevents shoot-through; ELC synchronizes ADC triggers to PWM edges; FPU executes FOC math in <10 µs. |
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 |
|---|---|---|---|
| R5F5671EHGLF#30 | Same RX671 Group, 144-pin LFQFP package (20 × 20 mm), 113 GPIOs, identical core/peripherals but different pinout and thermal characteristics | Better suited for legacy through-hole or larger PCB footprints where TFLGA reflow is not available | Select when mechanical compatibility with existing 144-pin QFP layouts is required; verify thermal derating for same ambient conditions |
| R5F566TEADFP#30 | RX66T Group, 100-pin LQFP, 160 MHz CPU, no TSIP, reduced flash (1 MB), no SDHI or QSPIX, but enhanced MTU3b with 12 PWM channels | Optimized for high-speed motor control only - lacks security, USB, SD, and touch features of R5F5671CDGLE#20 | Choose for cost-sensitive BLDC/PMSM drives where crypto, connectivity, and HMI are handled externally |
Compared with R5F5671EHGLF#30, the R5F5671CDGLE#20 offers superior board-level integration density and thermal performance in TFLGA, while R5F566TEADFP#30 trades security and connectivity for higher PWM channel count and CPU speed - making it suitable only for dedicated motor control without system-level security or user interface requirements.
Availability
R5F5671CDGLE#20 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 R5F5671CDGLE#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 delivering trusted embedded solutions for automotive, industrial, infrastructure, and IoT applications.
The RX671 Group, including the R5F5671CDGLE#20, is designed for secure, real-time industrial control systems demanding high computational throughput, hardware cryptography, and rich peripheral integration - especially where functional safety (IEC60730) and human-machine interaction are essential.
FAQ
What is the maximum operating frequency and CoreMark score of the R5F5671CDGLE#20?
The R5F5671CDGLE#20 operates at a maximum frequency of 120 MHz and achieves 707 CoreMark performance. This benchmark reflects its RXv3 CPU core efficiency with double-precision FPU, optimized instruction set, and zero-wait-state access to 384 KB SRAM. The R5F5671CDGLE#20 sustains this performance under full peripheral load with proper power and thermal design per Renesas Application Note R01AN4027.
Does the R5F5671CDGLE#20 support hardware cryptographic acceleration?
Yes, the R5F5671CDGLE#20 integrates Trusted Secure IP (TSIP) with hardware-accelerated AES128/192/256, TDES, ECC, SHA1/224/256, MD5, GHASH, and TRNG. These functions are accessible via dedicated registers and require no software library overhead. The R5F5671CDGLE#20 uses TSIP to meet IEC60730 Class B compliance for secure boot and firmware validation.
What package type and pin count does the R5F5671CDGLE#20 use?
The R5F5671CDGLE#20 uses a 145-pin TFLGA package (PTLG0145KB-A), measuring 7 × 7 mm with 0.50-mm pitch and an exposed thermal pad. It provides 113 GPIOs, 20 of which are 5-V tolerant. This package enables high I/O density and improved thermal dissipation over QFP alternatives - critical for compact industrial controllers where the R5F5671CDGLE#20 is commonly deployed.
Can the R5F5671CDGLE#20 execute code directly from external serial flash memory?
Yes, the R5F5671CDGLE#20 supports Execute-in-Place (XIP) from external flash via its QSPIX interface. The QSPIX module supports extended SPI, dual-SPI, and quad-SPI protocols with selectable address widths (8/16/24/32 bits). This allows the R5F5671CDGLE#20 to boot and run application code directly from serial flash, reducing reliance on internal flash and enabling flexible firmware partitioning.
What real-time clock and backup capabilities does the R5F5671CDGLE#20 provide?
The R5F5671CDGLE#20 includes a battery-backed RTC with 32-bit binary or calendar mode, leap-year correction, and time-capture on external events. When powered via VBATT, it retains RTC operation and 4 KB standby RAM. The RTC runs from a 32.768 kHz sub-clock oscillator and supports alarm, periodic, and carry interrupts - making the R5F5671CDGLE#20 suitable for energy meters and data loggers requiring precise timestamping across power cycles.
R5F5671CDGLE#20 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 145-TFLGA
- Series:
- RX671
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- -
- Core Processor:
- RXv3
- Core Size:
- 32-Bit Single-Core
- Speed:
- 120MHz
- Connectivity:
- CANbus, I2C, LINbus, QSPI, SCI, SPI, USB
- Peripherals:
- Capacitive Touch, DMA, LVD, POR, PWM, WDT
- Number of I/O:
- 111
- Program Memory Size:
- 1.5MB (1.5M 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 20x12b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F5671CDGLE#20 FAQ
1.How can I place an order for R5F5671CDGLE#20 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F5671CDGLE#20 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 R5F5671CDGLE#20 reliable?
The price and inventory of R5F5671CDGLE#20 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F5671CDGLE#20 is usually 5 days.
3.What payment methods are accepted for R5F5671CDGLE#20?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F5671CDGLE#20 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F5671CDGLE#20?
R5F5671CDGLE#20 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F5671CDGLE#20 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 R5F5671CDGLE#20?
For technical support, including R5F5671CDGLE#20 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F5671CDGLE#20 requirements.
6.How does Aetrix verify that R5F5671CDGLE#20 is sourced from the original manufacturer or authorized distributors?
All R5F5671CDGLE#20 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 R5F5671CDGLE#20 meets industry standards.
7.What is the process for return or replacement of R5F5671CDGLE#20?
All R5F5671CDGLE#20 units undergo pre-shipment inspection (PSI). If there is an issue with R5F5671CDGLE#20, 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 R5F5671CDGLE#20 part is unused and in its original packaging.
Return procedure for R5F5671CDGLE#20:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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