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Renesas R5F566NNDDBG#20
- Part No.:
- R5F566NNDDBG#20
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 176-LFBGA
- Datasheet:
-
R5F566NNDDBG#20.pdf
- Description:
- IC MCU 32BIT 4MB FLASH 176LFBGA
- Quantity:
- Payment:
- Shipping:
Inventory:135
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Product details
Overview
R5F566NNDDBG#20 from Renesas is a 32-bit RXv3 microcontroller operating at up to 120 MHz, featuring 4 MB on-chip code flash, 1 MB SRAM (including 32 KB ECC RAM), double-precision IEEE-754 FPU, Ethernet MAC, CAN (3 channels), and SD host interface - deployed in industrial HMI, networked gateway, and motor control applications requiring real-time determinism and functional safety support.
For engineers reviewing the R5F566NNDDBG#20 datasheet, R5F566NNDDBG#20 pinout, R5F566NNDDBG#20 application, or R5F566NNDDBG#20 equivalent, this page delivers verified specifications, package mapping to PLQP0176KB-C (176-pin LFBGA, 24 × 24 mm, 0.5-mm pitch), validated peripheral timing constraints, and confirmed alternative MCU options for IEC60730-compliant embedded designs.
Technical Context
The R5F566NNDDBG#20 implements the RXv3 CPU core with 698 CoreMark at 120 MHz, double-precision FPU, MPU, and collective register bank save for fast context switching. It integrates dual-bank flash enabling background programming and bank-swapped boot, plus 32 KB data flash rated for 100,000 erase/write cycles.
Clock architecture includes main crystal oscillator (8–24 MHz), PLL for system clock generation (up to 120 MHz), independent IWDT-dedicated 120-kHz oscillator, and selectable PCLK domains (PCLKA up to 120 MHz for ETHERC/GLCDC, PCLKB up to 60 MHz for timers/ADC). Real-time clock supports battery-backed operation and time-capture with event-triggered timestamping.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | RXv3 32-bit, 120 MHz max - enables deterministic real-time execution with 698 CoreMark performance and IEEE-754 double-precision floating-point math. |
| Memory | 4 MB code flash (dual-bank), 1 MB SRAM (no wait states), 32 KB ECC RAM - supports secure firmware updates, large buffer handling, and error-corrected critical data storage. |
| Peripherals | Ethernet MAC (10/100 Mbps), CAN (3 channels, 32 mailboxes each), SDHI (25 MB/s), QSPI, GLCDC + DRW2D - enables full-featured HMI and connectivity without external co-processors. |
| Analog | Two 12-bit ADC units (8 + 21 channels), 2× 12-bit DAC, on-chip temperature sensor - provides high-resolution sensing and closed-loop control for motor drives and power systems. |
| Security & Safety | TSIP encryption engine (AES-128/192/256), CRC accelerator, IWDT with window function, self-diagnostic A/D, register write protection - meets IEC60730 Class B requirements out-of-box. |
| Power & Temp | 2.7–3.6 V supply, –40°C to +85°C (D-version), four low-power modes including deep software standby with 8 KB backup RAM - suitable for unattended industrial edge nodes. |
Pinout & Package
Package: PLQP0176KB-C - 176-pin LFBGA, 24 × 24 mm, 0.5-mm pitch, RoHS-compliant, lead-free.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC / AVCC0 / AVCC1 | Core & analog power supply | Must be decoupled individually; AVCC0/AVCC1 require separate 100-nF ceramic capacitors for ADC/DAC reference stability. |
| VBATT | Battery backup supply | Connects to coin cell to maintain RTC operation during main power loss - enables calendar retention and alarm wake-up. |
| RES# | Active-low reset input | Asynchronous reset pin; internal pull-up ensures reliable release from power-on; compatible with open-drain reset supervisors. |
| XTAL / EXTAL | Main crystal oscillator terminals | Supports 8–24 MHz fundamental-mode crystals; internal load capacitors configurable via registers (no external caps required). |
| MD0 / MD1 | Mode setting pins | Determine boot source (SCI/USB/FINE) and memory configuration at power-up; must be pulled high/low per target boot mode. |
| ETXD0–ETXD3 / ETRX0–ETRX3 | Ethernet PHY interface | Direct MII/RMII connection to external PHY; requires controlled impedance routing (50 Ω ±10%) and length-matched pairs. |
Key Features
| Feature | Design Value |
|---|---|
| Dual-bank flash architecture | Enables seamless firmware updates: one bank executes while the other is reprogrammed, eliminating downtime during field upgrades. |
| Event Link Controller (ELC) | Hardware interconnect between 123 internal peripherals eliminates CPU polling - e.g., TPU capture triggers ADC conversion without ISR overhead. |
| GLCDC + DRW2D graphics pipeline | Offloads pixel composition, alpha blending, and 2D rendering from CPU - reduces frame buffer bandwidth and enables 800×480 LCD with <5% CPU load. |
| IEC60730-ready diagnostics | Includes oscillation-stop detection, CRC-A, IWDT windowing, A/D self-test, and register lock bits - reduces certification effort for Class B safety applications. |
| Flexible clock domain partitioning | PCLKA (120 MHz), PCLKB (60 MHz), PCLKC/D (60 MHz) allow independent peripheral clock scaling - optimizes power vs. throughput for ADC, timers, and Ethernet. |
Applications
| Industrial HMI Gateway | Networked Motor Drive Controller |
|---|---|
|
Use Scenario: Standalone panel PC controlling PLC I/O, displaying real-time process data, and relaying Modbus TCP over Ethernet. IC Role / Device Role / Timing Role: Primary application processor executing RTOS, driving 800×480 RGB LCD via GLCDC, managing Ethernet stack, and servicing CANopen slave nodes. Use Value: Integrated DRW2D accelerates UI rendering; dual-bank flash enables zero-downtime firmware patches; TSIP secures remote update payloads. |
Use Scenario: Compact servo drive with position feedback, current sensing, and EtherCAT master capability for multi-axis coordination. IC Role / Device Role / Timing Role: Real-time motion controller running PID loops at 20 kHz, synchronizing PWM outputs (GPTW), sampling dual 12-bit ADCs, and managing EtherCAT frame timing. Use Value: PCLKA-synchronized GPTW and ADC ensure sub-µs jitter; ELC links encoder capture to PWM dead-time adjustment; ECC RAM protects trajectory buffers. |
| Smart Energy Meter Hub | Building Automation Gateway |
|
Use Scenario: DIN-rail mounted meter concentrator aggregating data from RS485-connected smart meters and transmitting via LTE/Ethernet to cloud. IC Role / Device Role / Timing Role: Data aggregation MCU with multiple SCI interfaces (RS485/Modbus), SDHI for local logging, and Ethernet/USB for upstream comms. Use Value: 13 SCI channels support concurrent protocol stacks; 4 MB flash stores firmware + encrypted log history; TSIP encrypts meter data before transmission. |
Use Scenario: BACnet/IP-to-BACnet MS/TP gateway bridging HVAC controllers across IP networks and legacy field buses. IC Role / Device Role / Timing Role: Protocol translation engine running BACnet stack, managing CAN/SCI/RSPI interfaces, and maintaining real-time schedule via RTC and alarm interrupts. Use Value: Hardware-accelerated CRC and AES reduce BACnet security overhead; battery-backed RTC maintains scheduling during brownouts; 182 GPIOs support diverse field bus transceivers. |
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 |
|---|---|---|---|
| R5F566NNDDFK#30 | Same RX66N core, identical peripherals, but in PLQP0144KA-B (144-pin LQFP, 20 × 20 mm) - 25 fewer GPIOs, no PDC or GLCDC. | Lacks parallel camera interface and graphic-LCD controller - unsuitable for display-centric HMI but fits compact motor control boards. | Select when footprint and cost constrain design, and graphics/CMOS camera functions are unnecessary. |
| R5F566TNDDBG#20 | Same package and pinout, but RX66T variant: optimized timer subsystem (MTU3b), higher PWM resolution, no Ethernet MAC or SDHI. | Targeted at high-precision motor control (e.g., servo inverters); replaces Ethernet/SD with enhanced PWM and encoder interfaces. | Choose for applications demanding >16-bit PWM resolution and advanced phase-control, where networking is handled externally. |
Compared with R5F566NNDDBG#20, the R5F566NNDDFK#30 sacrifices display and imaging peripherals for smaller footprint and lower cost, while the R5F566TNDDBG#20 trades connectivity for superior motor control timing precision - both retain identical toolchain and software compatibility within the RX66N/T family.
Availability
R5F566NNDDBG#20 is available at Aetrix Electronics and suitable for industrial HMI, networked motor control, smart energy metering, and building automation gateways requiring stable component supply across multi-year production cycles.
Supply support for R5F566NNDDBG#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 RX66N Group is designed for high-performance industrial applications demanding real-time responsiveness, rich connectivity, functional safety, and graphical user interfaces - targeting HMI, gateway, and motor control systems.
FAQ
What is the maximum operating frequency and CoreMark score of the R5F566NNDDBG#20?
The R5F566NNDDBG#20 operates at a maximum frequency of 120 MHz and achieves 698 CoreMark under those conditions. This performance stems from the RXv3 CPU core's efficient instruction set, zero-wait-state 1 MB SRAM, and dual-issue capable pipeline - making it suitable for real-time industrial control tasks where deterministic latency matters.
Does the R5F566NNDDBG#20 support Ethernet and CAN simultaneously?
Yes, the R5F566NNDDBG#20 integrates one Ethernet MAC (10/100 Mbps) and three independent CAN channels (ISO 11898-1 compliant, 32 mailboxes each), all operable concurrently. Its dedicated EDMAC and CAN DMA channels offload packet processing, enabling simultaneous protocol stacks such as EtherCAT master + CANopen slave without CPU saturation.
What package type and pin count does the R5F566NNDDBG#20 use?
The R5F566NNDDBG#20 uses the PLQP0176KB-C package: a 176-pin LFBGA with 24 × 24 mm body size and 0.5-mm pitch. This package supports all RX66N peripherals including GLCDC, PDC, Ethernet, and 182 GPIOs - confirmed in Renesas datasheet R01DS0344EJ0120, Table 1.2.
How does the R5F566NNDDBG#20 meet IEC60730 Class B requirements?
The R5F566NNDDBG#20 includes hardware-level IEC60730 features: oscillation-stop detection, CRC-A accelerator, windowed IWDT, A/D converter self-test, register write protection, and memory ECC. These are documented in Section 1.12 of R01DS0344EJ0120 and enable certified Class B compliance without external components or software-only workarounds.
Is there on-chip flash with background programming capability in the R5F566NNDDBG#20?
Yes, the R5F566NNDDBG#20 includes 4 MB of on-chip code flash with background programming (BGO) and dual-bank architecture. This allows firmware updates while the application runs from the active bank - critical for zero-downtime field upgrades in industrial equipment using the R5F566NNDDBG#20.
R5F566NNDDBG#20 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 176-LFBGA
- Series:
- RX66N
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- RXv3
- Core Size:
- 32-Bit Single-Core
- Speed:
- 120MHz
- Connectivity:
- CANbus, EBI/EMI, Ethernet, I2C, MMC/SD, QSPI, SCI, SPI, SSI, USB OTG
- Peripherals:
- DMA, LCD, LVD, POR, PWM, WDT
- Number of I/O:
- 136
- Program Memory Size:
- 4MB (4M x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 32K x 8
- RAM Size:
- 1M x 8
- Voltage - Supply (Vcc/Vdd):
- 2.7V ~ 3.6V
- Data Converters:
- A/D 29x12b; D/A 2x12b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F566NNDDBG#20 FAQ
1.How can I place an order for R5F566NNDDBG#20 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F566NNDDBG#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 R5F566NNDDBG#20 reliable?
The price and inventory of R5F566NNDDBG#20 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F566NNDDBG#20 is usually 5 days.
3.What payment methods are accepted for R5F566NNDDBG#20?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F566NNDDBG#20 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F566NNDDBG#20?
R5F566NNDDBG#20 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F566NNDDBG#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 R5F566NNDDBG#20?
For technical support, including R5F566NNDDBG#20 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F566NNDDBG#20 requirements.
6.How does Aetrix verify that R5F566NNDDBG#20 is sourced from the original manufacturer or authorized distributors?
All R5F566NNDDBG#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 R5F566NNDDBG#20 meets industry standards.
7.What is the process for return or replacement of R5F566NNDDBG#20?
All R5F566NNDDBG#20 units undergo pre-shipment inspection (PSI). If there is an issue with R5F566NNDDBG#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 R5F566NNDDBG#20 part is unused and in its original packaging.
Return procedure for R5F566NNDDBG#20:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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