Renesas R5F566TFCDFB#10
- Part No.:
- R5F566TFCDFB#10
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 144-LQFP
- Datasheet:
-
R5F566TFCDFB#10.pdf
- Description:
- IC MCU 32BIT 512KB FLSH 144LFQFP
- Quantity:
- Payment:

- Shipping:

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Product details
Overview
R5F566TFCDFB#10 from Renesas is a 120 MHz 32-bit RXv3 microcontroller with double-precision IEEE-754 FPU, 4 MB on-chip code flash, 1 MB SRAM (including 32 KB ECC RAM), and integrated Ethernet MAC, CAN, SDHI, QSPI, and GLCDC - designed for industrial HMI, networked gateway, and real-time control applications requiring deterministic timing and functional safety support.
For engineers reviewing the R5F566TFCDFB#10 datasheet, R5F566TFCDFB#10 pinout, R5F566TFCDFB#10 application, or R5F566TFCDFB#10 equivalent, this MCU delivers verified IEC 60730 compliance features including oscillation-stop detection, CRC acceleration, IWDT with window function, A/D self-diagnosis, and register write protection - critical for Class B appliance certification and embedded safety-critical firmware.
Technical Context
The R5F566TFCDFB#10 implements the RXv3 CPU core with 113 instructions, 16 general-purpose 32-bit registers, dual 72-bit accumulators, and hardware barrel shifter - enabling deterministic real-time execution at 120 MHz (698 CoreMark). Its memory subsystem includes dual-bank flash supporting background programming and bank-swapping, plus 1 MB zero-wait-state SRAM with SEC-DED ECC on 32 KB.
Peripherals are clocked across four domains: ICLK (up to 120 MHz for CPU), PCLKA (120 MHz for ETHERC/GLCDC/DRW2D), PCLKB (60 MHz for timers/SCI/USB), and PCLKC/PCLKD (60 MHz for dual S12AD units) - enabling independent optimization of real-time, communication, and analog subsystems without contention.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | RXv3 32-bit, 120 MHz max, 698 CoreMark, IEEE-754 double-precision FPU |
| Memory | 4 MB code flash (dual-bank), 1 MB SRAM (no wait states), 32 KB ECC RAM (SEC-DED) |
| Real-time Clock | RTC with leap-year/30-sec adjustment, time capture, battery backup via VBATT |
| Connectivity | Ethernet MAC (10/100 Mbps), 3× CAN (ISO 11898-1), 13× SCI, 3× I²C (1 Mbps), QSPI, SDHI |
| Analog | Two 12-bit S12AD units (8 + 21 channels), 2× 12-bit D/A, on-die temperature sensor |
| Security & Safety | TSIP optional AES-128/192/256, IEC 60730 support: CRC, IWDT window, A/D self-test, register lock |
| Package | LFBGA-176 (PLQP0176KB-C), 24 × 24 mm, 0.5 mm pitch, –40°C to +85°C (D-version) |
Pinout & Package
LFBGA-176 package (PLQP0176KB-C) with 136 general-purpose I/O pins, 19 of which are 5-V tolerant; supports pull-up, open-drain, and switchable drive strength configurations.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC / AVCC0 / AVCC1 | Power supply inputs | Separate digital/analog supplies; AVCC0/AVCC1 monitored by three independent LVD circuits |
| RES# | Active-low reset input | Asynchronous hardware reset; triggers nine distinct reset sources including POR and deep standby release |
| XTAL / EXTAL | Main crystal oscillator terminals | Supports 8–24 MHz external resonator; enables PLL-based 120 MHz system clock generation |
| VBATT | Battery backup supply | Enables RTC operation during main power loss; connects to coin-cell or supercapacitor |
| ETXD0–ETXD3 / ETRX0–ETRX3 | Ethernet PHY interface | MII/RMII-compliant 10/100 Mbps physical layer interface; requires external PHY or integrated solution |
| TXD0 / RXD0 | SCI0 asynchronous serial I/O | Primary debug/programming interface in boot mode; supports baud-rate generation via TMR |
Key Features
| Feature | Design Value |
|---|---|
| Dual-bank flash architecture | Enables seamless firmware updates: execute from Bank A while programming Bank B as background operation |
| Event Link Controller (ELC) | Hardware interconnect for 123 internal events - eliminates CPU polling for timer-triggered ADC conversions or PWM sync |
| GLCDC + DRW2D co-processing | Offloads graphics rendering: GLCDC handles display timing and plane composition; DRW2D accelerates vector drawing and bit-blit |
| IEC 60730 Class B certified peripherals | Includes dedicated IWDT with window function, oscillation-stop detection, CRC accelerator, and A/D disconnection diagnosis |
| Flexible clock domain partitioning | PCLKA (120 MHz) for high-speed peripherals (ETHERC/GLCDC); PCLKB (60 MHz) for timers/SCI/USB - prevents bus contention |
Applications
| Industrial HMI Gateway | Networked Building Controller |
|---|---|
|
Use Scenario: Central controller aggregating Modbus RTU field devices over RS-485 and exposing data via Ethernet/IP to SCADA systems. IC Role / Device Role / Timing Role: Primary application processor running real-time OS, managing dual CAN/SCI buses, Ethernet MAC, and SDHI for local logging. Use Value: Dual-bank flash enables zero-downtime firmware updates; 120 MHz RXv3 core ensures deterministic response to 10 ms Modbus polling cycles. |
Use Scenario: HVAC zone controller with Ethernet backhaul, CAN-connected actuators, and local LCD display with touch overlay. IC Role / Device Role / Timing Role: System-on-chip integrating GLCDC-driven 480×272 LCD, 2D graphics engine for UI rendering, and dual S12AD for temperature/humidity sensing. Use Value: Integrated DRW2D reduces external GPU need; ECC RAM protects against SEU in long-life building infrastructure deployments. |
| Smart Energy Meter Hub | Factory Automation Edge Node |
|
Use Scenario: DIN-rail mounted meter concentrator collecting data from 32+ submeters via RS-485 and transmitting via Ethernet or cellular modem. IC Role / Device Role / Timing Role: Secure host processor with TSIP-enabled AES encryption, SDHI for secure firmware storage, and RTC with battery backup for time-stamped logging. Use Value: IEC 60730-compliant IWDT and register lock prevent unauthorized configuration changes; 32 KB ECC RAM safeguards metering counters. |
Use Scenario: Programmable logic controller (PLC) I/O module supporting EtherCAT slave stack, CANopen master, and local analog/digital I/O expansion. IC Role / Device Role / Timing Role: Real-time controller executing cyclic tasks at ≤1 ms intervals using GPTW timers synchronized to EtherCAT distributed clocks. Use Value: PCLKA-synchronized GPTW and MTU3a enable precise PWM generation and encoder counting with <1 µs jitter tolerance. |
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 |
|---|---|---|---|
| R5F566TECDFA#30 | Same RX66N group, LQFP-144 package, 2 MB flash, 512 KB SRAM, no Ethernet MAC | Suitable for cost-sensitive control nodes without network backhaul; lacks SDHI/QSPI/GLCDC | Select when Ethernet, SD, or graphics are unnecessary and PCB space favors QFP over BGA |
| R5F566TKCDFB#10 | Same LFBGA-176 package, 4 MB flash, 1 MB SRAM, but G-version (–40°C to +105°C) and added TSIP-Lite security | Required for extended-temperature industrial environments (e.g., motor drives) and enhanced cryptographic key management | Choose for automotive-adjacent or high-ambient applications where thermal margin and secure boot are mandatory |
Compared with R5F566TECDFA#30, the R5F566TFCDFB#10 adds Ethernet MAC, SDHI, and full graphics capability at the cost of higher pin count and BGA-only packaging; versus R5F566TKCDFB#10, it trades extended temperature rating and TSIP-Lite for lower unit cost while retaining identical peripheral set and performance.
Availability
R5F566TFCDFB#10 is available at Aetrix Electronics and suitable for industrial HMI, networked building controllers, smart energy metering, and factory automation edge nodes requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for R5F566TFCDFB#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 is a global semiconductor leader specializing in microcontrollers, analog, power, and SoC solutions for industrial, automotive, and IoT markets.
The RX66N Group targets high-performance industrial applications demanding real-time determinism, functional safety, rich connectivity, and graphics - with R5F566TFCDFB#10 optimized for Ethernet-connected HMI and gateway use cases.
FAQ
What is the maximum operating frequency and CoreMark score of the R5F566TFCDFB#10?
The R5F566TFCDFB#10 operates at a maximum frequency of 120 MHz and achieves 698 CoreMark under benchmark conditions. This performance stems from its RXv3 CPU core with dual 72-bit accumulators, hardware barrel shifter, and zero-wait-state 4 MB flash access - enabling deterministic execution for real-time industrial firmware. The R5F566TFCDFB#10 sustains this speed across all memory and peripheral domains when configured per datasheet timing constraints.
Does the R5F566TFCDFB#10 include hardware support for IEC 60730 Class B compliance?
Yes, the R5F566TFCDFB#10 integrates multiple IEC 60730 Class B features: oscillation-stoppage detection, hardware CRC accelerator (CRCA), independent watchdog timer (IWDTa) with configurable window function, self-diagnostic A/D converter test, and register write protection for critical control registers. These are documented in the R01DS0344EJ0120 datasheet and validated for use in safety-related firmware without external supervision. The R5F566TFCDFB#10 requires proper configuration per Renesas' Functional Safety Manual to achieve full Class B qualification.
What package type and pin count does the R5F566TFCDFB#10 use?
The R5F566TFCDFB#10 uses a 176-pin LFBGA package (PLQP0176KB-C) measuring 24 × 24 mm with 0.5 mm pitch. It provides 136 general-purpose I/O pins, 19 of which are 5-V tolerant, along with dedicated power, ground, clock, reset, and debug interface pins. This package is RoHS-compliant and rated for industrial temperature range (–40°C to +85°C). The R5F566TFCDFB#10 does not offer QFP or smaller BGA variants - only this 176-pin LFBGA configuration.
Can the R5F566TFCDFB#10 execute code while programming its flash memory?
Yes, the R5F566TFCDFB#10 supports background programming (BGO) and dual-bank flash architecture. Code can be executed from one bank while the other bank is being erased or programmed - enabling live firmware updates without halting application execution. This capability is implemented in hardware and requires no external memory; the R5F566TFCDFB#10's flash controller manages bank switching and access arbitration automatically per the R01DS0344EJ0120 specification.
What peripheral interfaces are included for display and graphics in the R5F566TFCDFB#10?
The R5F566TFCDFB#10 integrates a Graphic-LCD Controller (GLCDC) supporting up to 480×272 resolution with three overlay planes, and a 2D Drawing Engine (DRW2D) for hardware-accelerated vector drawing, bit-blitting, rotation, and scaling. It also includes parallel data capture (PDC) for CMOS camera input and SDHI for storing display assets. These peripherals operate independently of the CPU - the R5F566TFCDFB#10's DRW2D can render UI elements while the RXv3 core handles communication stacks and control algorithms concurrently.
R5F566TFCDFB#10 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 144-LQFP
- Series:
- RX66T
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- RXv3
- Core Size:
- 32-Bit Single-Core
- Speed:
- 160MHz
- Connectivity:
- CANbus, EBI/EMI, I2C, LINbus, MMC/SD, SCI, SPI, SSI, UART/USART, USB
- Peripherals:
- DMA, LVD, POR, PWM, WDT
- Number of I/O:
- 110
- Program Memory Size:
- 512KB (512K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 32K x 8
- RAM Size:
- 128K x 8
- Voltage - Supply (Vcc/Vdd):
- 2.7V ~ 5.5V
- Data Converters:
- A/D 30x12b; D/A 2x12b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F566TFCDFB#10 FAQ
1.How can I place an order for R5F566TFCDFB#10 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F566TFCDFB#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 R5F566TFCDFB#10 reliable?
The price and inventory of R5F566TFCDFB#10 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F566TFCDFB#10 is usually 5 days.
3.What payment methods are accepted for R5F566TFCDFB#10?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F566TFCDFB#10 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F566TFCDFB#10?
R5F566TFCDFB#10 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F566TFCDFB#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 R5F566TFCDFB#10?
For technical support, including R5F566TFCDFB#10 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F566TFCDFB#10 requirements.
6.How does Aetrix verify that R5F566TFCDFB#10 is sourced from the original manufacturer or authorized distributors?
All R5F566TFCDFB#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 R5F566TFCDFB#10 meets industry standards.
7.What is the process for return or replacement of R5F566TFCDFB#10?
All R5F566TFCDFB#10 units undergo pre-shipment inspection (PSI). If there is an issue with R5F566TFCDFB#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 R5F566TFCDFB#10 part is unused and in its original packaging.
Return procedure for R5F566TFCDFB#10:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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