Renesas R5F566TFCDFP#10
- Part No.:
- R5F566TFCDFP#10
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 100-LQFP
- Datasheet:
-
R5F566TFCDFP#10.pdf
- Description:
- IC MCU 32BIT 512KB FLSH 100LFQFP
- Quantity:
- Payment:

- Shipping:

Inventory:695
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
R5F566TFCDFP#10 from Renesas is a 120-MHz 32-bit RXv3 microcontroller with double-precision IEEE-754 FPU, 2 Mbytes of on-chip code flash memory, 1 Mbyte of SRAM (including 32 Kbytes with SEC-DED ECC), and integrated Ethernet MAC, CAN, USB 2.0 FS, SDHI, QSPI, and GLCDC for industrial HMI and networked embedded systems.
For engineers reviewing the R5F566TFCDFP#10 datasheet, R5F566TFCDFP#10 pinout, R5F566TFCDFP#10 application, or R5F566TFCDFP#10 equivalent, this MCU supports IEC60730-compliant safety functions, real-time clock with battery backup, dual-bank flash for safe firmware updates, and hardware-accelerated 2D graphics rendering - critical for deterministic control and display subsystems in factory automation and building management.
Technical Context
The R5F566TFCDFP#10 implements the RXv3 CPU core with 113 instructions, 16 general-purpose 32-bit registers, and dual-precision FPU supporting 64-bit floating-point arithmetic per IEEE-754. It integrates a memory protection unit (MPU) and collective register bank save for fast context switching in real-time OS environments.
Its clock system includes PLLs for 120-MHz ICLK, independent PCLKA/PCLKB domains (up to 120 MHz/60 MHz), and dedicated IWDT oscillator at 120 kHz. Peripheral clocks are fully configurable, enabling precise timing isolation for Ethernet, CAN, and A/D conversion subsystems without CPU intervention.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | RXv3 32-bit, 120 MHz max - delivers 698 CoreMark; enables deterministic real-time task scheduling in RTOS-based industrial controllers. |
| Flash Memory | 2 Mbytes code flash with dual-bank structure - allows background programming and seamless firmware update without halting execution. |
| RAM | 1 Mbyte SRAM (512 KB + 512 KB expansion), 32 KB ECC RAM - supports robust data buffering and error-corrected critical variables in safety-critical applications. |
| Peripherals | Ethernet MAC (10/100 Mbps), 3× CAN (ISO11898-1), 13× SCI, 3× I²C, QSPI, SDHI, GLCDC, DRW2D - enables full-stack connectivity and local HMI in single-chip edge nodes. |
| A/D Converter | Two 12-bit S12AD units (8 + 21 channels), 0.48 µs conversion time - provides high-speed analog monitoring across motor drives and sensor fusion systems. |
| Package | 144-pin LFQFP (PLQP0144KA-B), 20 × 20 mm, 0.5-mm pitch - compatible with standard reflow profiles and supports 136 GPIOs including 19 with 5-V tolerance. |
| Operating Range | –40°C to +85°C (D-version) - qualified for industrial ambient conditions without derating in PLC or gateway deployments. |
Pinout & Package
Package: PLQP0144KA-B, 144-pin Low-Profile Quad Flat Package (LFQFP), 20 × 20 mm body, 0.5-mm lead pitch, exposed thermal pad.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC, AVCC0, AVCC1 | Power supply inputs | Separate digital/analog rails (2.7–3.6 V); AVCC0/AVCC1 support precision A/D reference stability and low-noise analog operation. |
| RES# | Active-low reset input | Asynchronous hardware reset with internal pull-up; initiates full system initialization including flash controller and peripheral state machines. |
| XTAL, EXTAL | Main crystal oscillator interface | Supports 8–24 MHz external crystal; enables precise 120-MHz system clock via PLL with ±0.1% frequency accuracy for Ethernet timing compliance. |
| ETH_MDC, ETH_MDIO, ETH_TXD[3:0], ETH_RXD[3:0] | Ethernet PHY interface | MII-compliant 4-bit transmit/receive bus - directly connects to external PHY without glue logic for IEEE 802.3u 100BASE-TX operation. |
| USB_VBUS, USB_DP, USB_DM | USB 2.0 Full-Speed transceiver | Integrated PHY with on-chip termination - eliminates external resistors; supports host/device/OTG modes with 2 KB on-chip buffer. |
| SD0_CLK, SD0_CMD, SD0_DATA[3:0] | SD host interface signals | 1- or 4-bit SD bus interface compliant with SD Physical Layer Spec v3.01 - enables direct attachment of SD cards or Wi-Fi modules. |
Key Features
| Feature | Design Value |
|---|---|
| Dual-bank flash architecture | Enables live firmware update: one bank executes while the other is reprogrammed, eliminating downtime during field upgrades. |
| Hardware 2D drawing engine (DRW2D) | Accelerates bitmap blitting, rotation, and vector primitives - reduces CPU load by >70% in GUI rendering for 480×272 LCDs. |
| IEC60730 safety support | Includes CRC accelerator, oscillation-stop detection, self-diagnostic A/D, and register write protection - simplifies Class B certification evidence generation. |
| Event Link Controller (ELC) | Routes 123 internal event signals (e.g., timer overflow, A/D completion) directly to peripherals - eliminates ISR latency for time-critical signal chains. |
| Temperature sensor & RTC with VBATT | On-die temperature measurement (±2°C accuracy) and battery-backed real-time clock - enables environmental logging and time-stamped event capture during power loss. |
Applications
| Industrial Ethernet Gateway | Smart Building HMI Controller |
|---|---|
|
Use Scenario: Aggregating Modbus TCP, CANopen, and BACnet MS/TP traffic into unified Ethernet backbone for HVAC and lighting control. IC Role / Device Role / Timing Role: Central protocol translator and real-time scheduler with hardware-accelerated packet filtering and timestamping via Ethernet MAC and ELC. Use Value: Eliminates external FPGA or dual-MCU architecture; 120-MHz RXv3 core handles concurrent protocol stacks while DRW2D renders status dashboards on local LCD. |
Use Scenario: Wall-mounted touch panel managing room occupancy, blinds, and energy metering with local decision logic and cloud sync. IC Role / Device Role / Timing Role: Single-chip HMI controller integrating GLCDC-driven display, capacitive touch decoding via SCI/I²C, and secure OTA updates via SDHI + dual-bank flash. Use Value: Reduces BOM count by 40% vs. MPU+GPU+PMIC solution; ECC RAM ensures data integrity during frequent power cycling in commercial buildings. |
| Factory Automation PLC I/O Module | Medical Infusion Pump Controller |
|
Use Scenario: DIN-rail mounted I/O module with 16-channel isolated analog inputs, 8-channel relay outputs, and EtherCAT slave interface. IC Role / Device Role / Timing Role: Real-time motion and I/O coordinator using MTU3a PWM timers for servo drive synchronization and GPTW for precise pulse-width modulation. Use Value: On-chip 12-bit A/D (21-channel unit) samples all analog inputs simultaneously; ELC-triggered DMA transfers prevent CPU bottlenecks in 1-ms control loops. |
Use Scenario: Battery-powered infusion pump requiring FDA Class II compliance, flow rate accuracy, and tamper-resistant firmware. IC Role / Device Role / Timing Role: Safety-certified controller executing closed-loop PID algorithms with watchdog supervision, temperature-compensated D/A output, and encrypted parameter storage. Use Value: TSIP optional encryption secures calibration data; IEC60730 diagnostics (CRC, A/D self-test, register lock) satisfy 62304 software lifecycle requirements. |
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, 100-pin LFQFP, 2 MB flash, but only 512 KB SRAM and no Ethernet MAC or GLCDC. | Lacks integrated Ethernet and graphics; suitable for cost-sensitive sensor nodes or CAN-only edge devices. | Select when Ethernet, SDHI, or LCD interface are unnecessary and PCB space is constrained to 100-pin footprint. |
| R5F566TKCDFP#10 | Same 144-pin LFQFP package, but 4 MB flash, 1 MB SRAM, and identical peripheral set - higher-density variant within same pinout. | Direct replacement where extended firmware image size or larger data buffers are required without layout change. | Choose for future-proofing or applications needing >2 MB application code (e.g., embedded web server + TLS stack). |
Compared with R5F566TFCDFP#10, R5F566TECDFA#30 sacrifices Ethernet, graphics, and memory for lower cost and smaller form factor, while R5F566TKCDFP#10 offers identical functionality with doubled flash capacity - making it ideal for complex firmware deployments without redesigning the PCB.
Availability
R5F566TFCDFP#10 is available at Aetrix Electronics and suitable for industrial gateways, smart building HMIs, factory automation I/O modules, medical infusion pumps, and energy metering systems requiring stable component supply across multi-year production cycles.
Supply support for R5F566TFCDFP#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, and power solutions for automotive, industrial, and IoT markets, with over 40 years of embedded systems expertise.
The RX66N Group - including R5F566TFCDFP#10 - was designed for high-integration industrial edge nodes requiring real-time control, rich connectivity (Ethernet/CAN/USB), and local HMI rendering in a single chip.
FAQ
What is the maximum operating frequency and CoreMark score of the R5F566TFCDFP#10?
The R5F566TFCDFP#10 operates at a maximum frequency of 120 MHz and achieves 698 CoreMark points under benchmark conditions. This performance level is enabled by the RXv3 CPU core's optimized instruction pipeline and dual-precision FPU, allowing R5F566TFCDFP#10 to execute complex control algorithms and communication stacks concurrently in real-time industrial applications.
Does the R5F566TFCDFP#10 include hardware support for functional safety standards like IEC60730?
Yes, the R5F566TFCDFP#10 integrates multiple IEC60730 Class B compliance features: oscillation-stop detection, hardware CRC accelerator, self-diagnostic A/D converter test, independent watchdog timer (IWDTa) with window function, and register write protection. These capabilities reduce the effort required to generate safety documentation for R5F566TFCDFP#10-based designs in household appliances and industrial controls.
What package type and pin count does the R5F566TFCDFP#10 use?
The R5F566TFCDFP#10 uses a 144-pin Low-Profile Quad Flat Package (LFQFP) designated PLQP0144KA-B, measuring 20 × 20 mm with 0.5-mm lead pitch. This package supports 136 general-purpose I/O pins, 19 of which are 5-V tolerant, and includes an exposed thermal pad for enhanced heat dissipation in continuous industrial operation.
Can the R5F566TFCDFP#10 execute firmware updates without interrupting real-time operation?
Yes, the R5F566TFCDFP#10 supports background programming and dual-bank flash operation. While one bank executes active firmware, the second bank can be erased and reprogrammed - enabling seamless over-the-air or local firmware updates without halting control loops or communication services. This capability is intrinsic to the R5F566TFCDFP#10's flash controller architecture.
What display interfaces does the R5F566TFCDFP#10 support for embedded HMI applications?
The R5F566TFCDFP#10 integrates a Graphic-LCD Controller (GLCDC) supporting up to 3 overlay planes and a hardware 2D Drawing Engine (DRW2D) for accelerated bit blitting, rotation, and vector rendering. It supports common RGB interfaces (e.g., 16-/18-/24-bit parallel) and works with resolutions up to WVGA (800×480), making R5F566TFCDFP#10 suitable for responsive, low-latency HMIs in industrial panels and medical devices.
R5F566TFCDFP#10 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 100-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:
- 69
- 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 22x12b; D/A 2x12b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F566TFCDFP#10 FAQ
1.How can I place an order for R5F566TFCDFP#10 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F566TFCDFP#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 R5F566TFCDFP#10 reliable?
The price and inventory of R5F566TFCDFP#10 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F566TFCDFP#10 is usually 5 days.
3.What payment methods are accepted for R5F566TFCDFP#10?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F566TFCDFP#10 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F566TFCDFP#10?
R5F566TFCDFP#10 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F566TFCDFP#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 R5F566TFCDFP#10?
For technical support, including R5F566TFCDFP#10 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F566TFCDFP#10 requirements.
6.How does Aetrix verify that R5F566TFCDFP#10 is sourced from the original manufacturer or authorized distributors?
All R5F566TFCDFP#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 R5F566TFCDFP#10 meets industry standards.
7.What is the process for return or replacement of R5F566TFCDFP#10?
All R5F566TFCDFP#10 units undergo pre-shipment inspection (PSI). If there is an issue with R5F566TFCDFP#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 R5F566TFCDFP#10 part is unused and in its original packaging.
Return procedure for R5F566TFCDFP#10:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
R5F566TFCDFP#10 Tags

-
ATTINY4-TSHR
Microchip Technology

-
ATTINY10-TSHR
Microchip Technology

-
ATTINY10-TS8R
Microchip Technology

-
ATTINY202-SSNR
Microchip Technology

-
ATTINY202-SSFR
Microchip Technology

-
ATTINY402-SSNR
Microchip Technology

-
PIC16F15213T-I/MF
Microchip Technology

-
PIC16F15213-E/MF
Microchip Technology

-
PIC10F200T-I/OT
Microchip Technology

-
ATTINY412-SSNR
Microchip Technology

-
PIC10F202T-I/OT
Microchip Technology

-
ATTINY404-SSNR
Microchip Technology
Tech Hub
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…

