Renesas R5F5651CDDFP#10
- Part No.:
- R5F5651CDDFP#10
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 100-LQFP
- Datasheet:
-
R5F5651CDDFP#10.pdf
- Description:
- IC MCU 32BIT 1.5MB FLSH 100LFQFP
- Quantity:
- Payment:

- Shipping:

Inventory:1,440
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Product details
Overview
R5F5651CDDFP#10 from Renesas is a 120-MHz 32-bit RXv2 microcontroller with single-precision IEEE-754 FPU, 240 DMIPS performance, 1 MB on-chip code flash memory, 256 KB SRAM, and integrated Ethernet MAC, CAN, USB 2.0 FS, SD host/slave, QSPI, and GLCDC for industrial HMI and networked edge devices.
For engineers reviewing the R5F5651CDDFP#10 datasheet, R5F5651CDDFP#10 pinout, R5F5651CDDFP#10 application, or R5F5651CDDFP#10 equivalent, this MCU delivers deterministic real-time control with IEC60730 safety support, dual-bank flash for safe firmware updates, and hardware-accelerated 2D graphics rendering - critical for secure, upgradable embedded gateways and smart controllers.
Technical Context
The R5F5651CDDFP#10 implements the RXv2 CISC Harvard architecture with 5-stage pipeline, variable-length instructions, and MPU-enforced memory protection. It integrates a dedicated 120-kHz IWDT clock source, dual-bank flash enabling background programming during execution, and ELC-driven event linking to eliminate CPU intervention for timer-triggered ADC sampling or PWM waveform generation.
Its peripheral clock domain architecture separates ICLK (up to 120 MHz), PCLKA (120 MHz for ETHERC/EDMAC/AES/GLCDC), PCLKB (60 MHz for most timers and interfaces), and PCLKC/D (60 MHz for dual 12-bit ADC units), enabling precise power/performance trade-offs across subsystems without global frequency throttling.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | RXv2 32-bit CISC core with 5-stage pipeline, 240 DMIPS @ 120 MHz, IEEE-754 single-precision FPU, and 72-bit accumulators for DSP workloads. |
| Memory | 1 MB code flash (dual-bank, BGO programmable), 256 KB SRAM (no wait states @ 120 MHz), 32 KB data flash (100k erase cycles), 8 KB standby RAM. |
| Peripherals | Ethernet MAC + RMII/MII, 2× CAN 2.0B (32 mailboxes/channel), USB 2.0 FS host/function/OTG, SDHI/SDSI/MMCIF, QSPI, 3× RSPI, 3× RIIC, 13× SCI, GLCDC + DRW2D. |
| Analog | Dual 12-bit S12AD converters (8+21 channels), 0.42–0.48 µs conversion time, self-diagnostic and analog disconnection detection; 2× R12DA 12-bit DACs with buffered/unbuffered output. |
| Timers & Control | MTU3a (9-channel), TPUa (6-channel), 4× TMR, 4× CMT, 2× CMTW, RTC with battery backup, IWDT with window function, and ELC for hardware-triggered peripheral coordination. |
| Security & Safety | TSIP encryption engine (AES-128/192/256), Trusted Memory (TM) for code protection, MPU (8 regions), CRC calculator (8/32-bit), register write protection, and IEC60730-compliant diagnostics. |
| Package & Environment | LQFP-100 (14 × 14 mm, 0.5 mm pitch), 78 GPIO (17× 5-V tolerant), –40°C to +85°C operating range, 2.7–3.6 V supply, 0.19 mA/MHz typical active current. |
Pinout & Package
LQFP-100 package (PLQP0100KB-B), 14 × 14 mm body, 0.5 mm pitch, exposed pad for thermal dissipation. Pin count and I/O configuration match RX651 Group specification for 100-pin variants: 78 general-purpose I/O pins, 17 with 5-V tolerance, full JTAG/FINE debug support, and dedicated VBATT pin for RTC battery backup.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC / AVCC0 / AVCC1 | Core & analog power supply | Separate 2.7–3.6 V domains for digital logic (VCC), ADC0 reference (AVCC0), and ADC1/RTC reference (AVCC1); decoupling required per datasheet layout guidelines. |
| VBATT | RTC backup supply | Accepts 1.6–3.6 V external battery to maintain RTC calendar/time and 8 KB standby RAM during main power loss. |
| RES# | Active-low reset input | Asynchronous hardware reset; internal pull-up ensures reliable release from power-on; compatible with open-drain reset supervisors. |
| XTAL / EXTAL | Main crystal oscillator interface | Supports 8–24 MHz external crystal; enables PLL-based 120 MHz system clock; optional internal HOCO fallback for fail-safe operation. |
| MD0 / MD1 | Mode selection inputs | Configure boot mode (SCI/USB/FINE) or single-chip operation at power-up; pulled high internally; external pull-downs define startup behavior. |
| ETXD0–3 / ETXCK / ERXD0–3 / ERXCK | Ethernet PHY interface | RMII-compliant 2-wire (TX/RX) or MII-compliant 8-wire physical layer interface; requires external PHY unless using integrated Ethernet controller with external magnetics. |
Key Features
| Feature | Design Value |
|---|---|
| Dual-bank flash with BGO | Enables seamless firmware updates: new code writes to inactive bank while active bank executes; bank swap occurs atomically via software trigger - no runtime interruption. |
| Hardware-accelerated 2D graphics | DRW2D engine performs vector drawing (lines/circles), bit blitting (copy/stretch/rotate), and CLUT-based color conversion without CPU load - reduces HMI frame rendering latency by >70% vs. software-only. |
| Event Link Controller (ELC) | Direct hardware interconnection of 83 internal events (e.g., TPU compare match → ADC start → DMA transfer) eliminates ISR overhead and jitter in time-critical control loops. |
| IEC60730 safety suite | Includes oscillation-stop detection, CRC calculator (8/32-bit), IWDT windowing, A/D self-test, and register write protection - satisfies Class B requirements without external co-processor. |
| Integrated GLCDC + PDC | Graphic-LCD controller supports 3-layer overlay (background + 2 graphics planes) and parallel camera interface (CMOS sensor sync signals) - enables single-chip HMI with live video feed and UI overlay. |
Applications
| Industrial Gateway | Smart Energy Meter |
|---|---|
Use Scenario: Edge gateway aggregating Modbus RTU, CAN bus, and Ethernet data from PLCs, sensors, and actuators in factory automation. IC Role / Device Role / Timing Role: Central protocol translator and real-time scheduler with deterministic Ethernet packet handling, CAN mailbox filtering, and timestamped event logging. Use Value: Dual-bank flash allows remote firmware patching without downtime; hardware CRC and IWDT ensure communication integrity and fail-safe recovery during field updates. |
Use Scenario: UL/IEC-certified electricity meter with tamper detection, tariff switching, and secure data upload via cellular or Power Line Communication (PLC). IC Role / Device Role / Timing Role: Safety-certified metering SoC performing metrology calculations (via FPU), secure key storage (TSIP), and RTC-synchronized billing intervals. Use Value: Integrated TSIP AES engine encrypts consumption logs before transmission; IEC60730 diagnostics validate ADC linearity and clock stability per regulatory test cycles. |
| HMI Controller | Networked Building Controller |
Use Scenario: Touch-enabled panel PC for HVAC control, displaying real-time sensor graphs, alarm history, and system schematics on TFT-LCD. IC Role / Device Role / Timing Role: Graphics processor (GLCDC + DRW2D) rendering UI layers, touch controller interface (via SCI/USB), and local control loop execution. Use Value: On-chip 2D engine offloads CPU from pixel manipulation; 640 KB SRAM option (not applicable to R5F5651CDDFP#10) not required - 256 KB suffices with double-buffered frame buffers. |
Use Scenario: BACnet/IP or KNX-over-IP controller managing lighting, access, and environmental systems in commercial buildings. IC Role / Device Role / Timing Role: Network stack processor (TCP/IP + BACnet/KNX protocol stack), secure OTA update handler, and local I/O supervisor (GPIO, ADC, DAC). Use Value: Ethernet MAC + RMII eliminates external PHY cost; SDHI interface stores configuration backups and firmware images on removable microSD card for field service. |
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 |
|---|---|---|---|
| R5F5651EDDFP#10 | Same RX651 Group silicon, but with 2 MB flash, 640 KB SRAM, and extended peripheral set (e.g., additional SCI/RIIC channels). | Suitable for applications requiring larger firmware footprint, more concurrent protocols, or higher-resolution graphics buffering. | Select R5F5651EDDFP#10 when >1 MB flash or >256 KB SRAM is needed; R5F5651CDDFP#10 optimizes BOM cost for mid-tier HMI/gateway designs. |
| R5F566TEBDFP#10 | RX66T Group part: 160 MHz CPU, enhanced MTU3 for motor control (3-phase PWM with dead-time compensation), no Ethernet MAC or GLCDC. | Targeted at servo drives and inverters needing high-precision PWM timing and FOC math acceleration, not networking or display. | Choose R5F566TEBDFP#10 only for motor control-centric designs; R5F5651CDDFP#10 retains Ethernet, CAN, USB, and graphics for converged edge nodes. |
Compared with R5F5651EDDFP#10, the R5F5651CDDFP#10 reduces flash/SRAM capacity and peripheral count to lower unit cost and power, while retaining full Ethernet, CAN, USB, and graphics capability - making it optimal for cost-sensitive, feature-complete industrial gateways. Against R5F566TEBDFP#10, it trades motor-control precision for integrated networking and HMI, targeting different system architectures entirely.
Availability
R5F5651CDDFP#10 is available at Aetrix Electronics and suitable for industrial gateways, smart energy meters, HMI controllers, and networked building controllers requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for R5F5651CDDFP#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 Japanese semiconductor manufacturer specializing in microcontrollers, analog, power, and connectivity solutions for automotive, industrial, and IoT markets.
The RX651 Group, including R5F5651CDDFP#10, was designed for secure, real-time industrial edge devices requiring integrated networking (Ethernet/CAN), human-machine interface (GLCDC/DRW2D), and functional safety (IEC60730) in a single chip.
FAQ
What is the maximum operating frequency and core type of the R5F5651CDDFP#10?
The R5F5651CDDFP#10 features a 32-bit RXv2 CPU core with a maximum operating frequency of 120 MHz, delivering 240 DMIPS performance. Its architecture includes a 5-stage pipeline, variable-length instructions, and single-precision IEEE-754 floating-point unit - optimized for deterministic real-time control in industrial applications where R5F5651CDDFP#10 is deployed.
Does the R5F5651CDDFP#10 include integrated Ethernet and CAN interfaces?
Yes, the R5F5651CDDFP#10 integrates a full Ethernet MAC supporting 10/100 Mbps with MII/RMII interfaces and two independent CAN 2.0B modules (32 mailboxes per channel). These peripherals operate on dedicated clock domains (PCLKA for Ethernet, PCLKB for CAN) and support hardware event linking - a key capability distinguishing R5F5651CDDFP#10 from lower-tier RX651 variants.
What memory resources are available on the R5F5651CDDFP#10?
The R5F5651CDDFP#10 provides 1 MB of on-chip code flash memory with dual-bank structure and background programming (BGO), 256 KB of zero-wait-state SRAM, 32 KB of reprogrammable data flash (100,000 erase cycles), and 8 KB of battery-backed standby RAM. This memory configuration is fixed for the R5F5651CDDFP#10 and validated in Renesas datasheet R01DS0276EJ0240.
Is the R5F5651CDDFP#10 suitable for IEC60730 Class B compliance?
Yes, the R5F5651CDDFP#10 includes hardware features required for IEC60730 Class B: oscillation-stop detection, CRC calculator (8/32-bit), independent watchdog timer (IWDT) with windowing, A/D converter self-diagnostic function, and register write protection. These are documented in the R5F5651CDDFP#10 datasheet and form the basis for certified safety firmware stacks.
What package type and pin count does the R5F5651CDDFP#10 use?
The R5F5651CDDFP#10 uses a 100-pin LQFP package (PLQP0100KB-B), measuring 14 × 14 mm with 0.5 mm pitch and an exposed thermal pad. It provides 78 general-purpose I/O pins, 17 of which are 5-V tolerant, along with dedicated pins for Ethernet, USB, SD, and debug interfaces - matching the RX651 Group's 100-pin variant specification.
R5F5651CDDFP#10 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 100-LQFP
- Series:
- RX651
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- RXv2
- Core Size:
- 32-Bit Single-Core
- Speed:
- 120MHz
- Connectivity:
- CANbus, EBI/EMI, Ethernet, I2C, LINbus, MMC/SD, QSPI, SCI, SPI, UART/USART, USB
- Peripherals:
- DMA, LVD, POR, PWM, WDT
- Number of I/O:
- 78
- Program Memory Size:
- 1.5MB (1.5M x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 32K x 8
- RAM Size:
- 640K x 8
- Voltage - Supply (Vcc/Vdd):
- 2.7V ~ 3.6V
- Data Converters:
- A/D 22x12b; D/A 1x12b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F5651CDDFP#10 FAQ
1.How can I place an order for R5F5651CDDFP#10 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F5651CDDFP#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 R5F5651CDDFP#10 reliable?
The price and inventory of R5F5651CDDFP#10 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F5651CDDFP#10 is usually 5 days.
3.What payment methods are accepted for R5F5651CDDFP#10?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F5651CDDFP#10 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F5651CDDFP#10?
R5F5651CDDFP#10 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F5651CDDFP#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 R5F5651CDDFP#10?
For technical support, including R5F5651CDDFP#10 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F5651CDDFP#10 requirements.
6.How does Aetrix verify that R5F5651CDDFP#10 is sourced from the original manufacturer or authorized distributors?
All R5F5651CDDFP#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 R5F5651CDDFP#10 meets industry standards.
7.What is the process for return or replacement of R5F5651CDDFP#10?
All R5F5651CDDFP#10 units undergo pre-shipment inspection (PSI). If there is an issue with R5F5651CDDFP#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 R5F5651CDDFP#10 part is unused and in its original packaging.
Return procedure for R5F5651CDDFP#10:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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