Renesas R5F5651CDGLJ#20
- Part No.:
- R5F5651CDGLJ#20
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 100-TFLGA
- Datasheet:
-
R5F5651CDGLJ#20.pdf
- Description:
- IC MCU 32BIT 1.5MB FLSH 100TFLGA
- Quantity:
- Payment:

- Shipping:

Inventory:416
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Product details
Overview
R5F5651CDGLJ#20 from Renesas is a 32-bit RXv2 core MCU operating at up to 120 MHz (240 DMIPS), featuring 1 MB on-chip code flash, 256 KB SRAM, single-precision IEEE-754 FPU, Ethernet MAC, dual CAN channels, and hardware AES/TSIP encryption - deployed in industrial HMIs with real-time graphics and secure connectivity.
For engineers reviewing the R5F5651CDGLJ#20 datasheet, R5F5651CDGLJ#20 pinout, R5F5651CDGLJ#20 application, or R5F5651CDGLJ#20 equivalent, key selection criteria include its 176-pin LFBGA package, 120-MHz deterministic timing, integrated GLCDC + DRW2D for LCD rendering, dual-bank flash for safe firmware updates, and IEC60730-compliant safety features including CRC, IWDT, and register write protection.
Technical Context
The R5F5651CDGLJ#20 implements the RXv2 CISC Harvard architecture with 5-stage pipeline, variable-length instructions, and memory protection unit (MPU) supporting eight 16-byte-aligned regions. It integrates dual-clock domain operation: ICLK up to 120 MHz for CPU/core logic, PCLKA up to 120 MHz for high-speed peripherals (ETHERC, EDMAC, AES, GLCDC), and PCLKB up to 60 MHz for timers, ADC, and communication interfaces.
Its peripheral subsystem includes a dedicated 2-channel CAN controller compliant with ISO11898-1 (32 mailboxes/channel), Ethernet MAC with MII/RMII support, SDHI/SDSI/MMCIF host/slave interfaces, and parallel data capture (PDC) for CMOS camera input - all coordinated via Event Link Controller (ELC) for CPU-offload event chaining without software intervention.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | RXv2 32-bit CISC with 5-stage pipeline, 240 DMIPS @ 120 MHz |
| Flash Memory | 1 MB code flash with dual-bank structure enabling background programming and safe firmware swap |
| SRAM | 256 KB on-chip SRAM (no wait states @ 120 MHz), plus 8 KB standby RAM with VBATT backup |
| Operating Voltage | 2.7–3.6 V supply; supports RTC battery backup via VBATT pin |
| Temperature Range | –40°C to +85°C (D-version), qualified for industrial environments |
| Security Features | AES-128/192/256 + Trusted Secure IP (TSIP); MPU with 8 configurable protection areas |
| Real-Time Peripherals | 2× 12-bit A/D converters (8+21 ch), 2× 12-bit D/A, RTC with time-capture, IWDT with window function |
Pinout & Package
Package: PLQP0176KB-A - 176-pin LFBGA, 24 × 24 mm, 0.5-mm pitch, RoHS-compliant, lead-free.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC / AVCC0 / AVCC1 | Power supply inputs | Separate analog/digital domains enable noise isolation for 12-bit ADC/DAC accuracy |
| VBATT | Battery backup supply | Retains RTC operation and 8 KB standby RAM during main power loss |
| XTAL / EXTAL | Main crystal oscillator terminals | Supports 8–24 MHz external resonator for precise system clock generation |
| ETH_MDC / ETH_MDIO | Ethernet management interface | Enables PHY configuration and status monitoring per IEEE 802.3 standard |
| CAN0_TX / CAN0_RX | Channel 0 CAN differential pair | Direct connection to ISO11898-1 compliant transceiver; supports 1 Mbps data rate |
| GLCD_D0–D23 | Graphic LCD data bus | 24-bit parallel output supporting RGB565, RGB888, and CLUT-based display formats |
Key Features
| Feature | Design Value |
|---|---|
| Integrated Graphics Engine | GLCDC + DRW2D enables hardware-accelerated 2D rendering, layer compositing, and texture mapping without CPU load |
| Dual-Bank Flash Architecture | Allows seamless firmware update: execute from Bank A while programming Bank B, then switch reset vector atomically |
| IEC60730 Safety Support | Includes oscillation-stop detection, CRC calculator (CRCA), self-diagnostic A/D, and register write protection for Class B compliance |
| Event Link Controller (ELC) | 83 internal event signals routed without CPU intervention - e.g., TPU trigger → A/D conversion → DMA transfer → interrupt |
| Secure Boot & Code Protection | Trusted Memory (TM) prevents read-out of protected code flash regions; TSIP provides key management and encrypted boot verification |
Applications
| Industrial HMI | Building Automation Gateway |
|---|---|
Use Scenario: Touch-enabled operator panel with real-time process visualization, alarm logging, and remote diagnostics over Ethernet. IC Role / Device Role / Timing Role: Main application processor executing RTOS, driving 480×272 TFT-LCD via GLCDC, managing CAN bus field devices, and handling secure HTTP/MQTT stack. Use Value: DRW2D offloads bitmap scaling/rotation; dual-bank flash enables zero-downtime OTA updates; TSIP secures firmware integrity. | Use Scenario: Central HVAC controller aggregating sensor data (temp/humidity/CO₂) via I²C/SPI, communicating with BACnet/IP over Ethernet, and interfacing with legacy LonWorks via CAN. IC Role / Device Role / Timing Role: System-on-chip controller integrating protocol translation, real-time scheduling, and secure edge-to-cloud telemetry. Use Value: Integrated Ethernet MAC + dual CAN + multiple SCI/I²C eliminates external bridge ICs; 120-MHz deterministic timing ensures sub-10ms control loop execution. |
| Medical Infusion Pump | Smart Energy Meter |
Use Scenario: Battery-backed infusion device requiring FDA Class II safety certification, precise motor control, and tamper-resistant audit logging. IC Role / Device Role / Timing Role: Safety-critical controller running IEC62304-compliant firmware, managing stepper motor via PWM, reading pressure sensors via 12-bit ADC, and storing event logs in data flash. Use Value: MPU enforces memory partitioning between safety and non-safety tasks; IWDT window mode prevents silent failure; AES encrypts stored patient data. | Use Scenario: DIN-rail mounted meter with PLC/G3-PLC communication, anti-tampering detection, and secure firmware updates over HAN. IC Role / Device Role / Timing Role: Secure metering SoC performing metrology calculations, managing PLC PHY interface, and enforcing PKI-based OTA authentication. Use Value: TSIP accelerates ECC signature verification; dual CAN supports legacy M-Bus; SDHI enables field-serviceable calibration data loading via microSD. |
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 |
|---|---|---|---|
| R5F5651EHDFP#30 | Same RX651 Group, 176-pin LQFP package; identical core/peripherals but different thermal/mechanical profile | LQFP preferred for prototyping or wave-soldered industrial PCBs; no BGA rework capability required | Select when board assembly uses through-hole/reflow-compatible packaging and thermal cycling is less severe than in sealed enclosures |
| R5F566TEADFP#30 | RX66T Group part: higher 160-MHz CPU, enhanced MTU3 for motor control, no GLCDC/DRW2D, added encoder interfaces | Targeted at servo drives and inverters; lacks graphics subsystem but adds real-time PWM dead-time compensation | Choose for motion control where graphics are unnecessary and deterministic 100-ns PWM timing is critical |
Compared with R5F5651CDGLJ#20, the R5F5651EHDFP#30 offers identical functionality in LQFP for easier assembly, while the R5F566TEADFP#30 trades graphics capability for superior motor-control peripherals and higher clock speed - making it unsuitable for HMI but optimal for real-time power electronics.
Availability
R5F5651CDGLJ#20 is available at Aetrix Electronics and suitable for industrial HMIs, building automation gateways, medical infusion pumps, and smart energy meters requiring stable component supply across extended product lifecycles.
Supply support for R5F5651CDGLJ#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 microcontrollers, analog, power, and SoC solutions for automotive, industrial, and IoT markets.
The RX651 Group - to which R5F5651CDGLJ#20 belongs - was designed specifically for industrial human-machine interfaces and edge-connected equipment requiring integrated graphics, real-time networking, and functional safety certification.
FAQ
What is the maximum operating frequency and CPU performance of the R5F5651CDGLJ#20?
The R5F5651CDGLJ#20 operates at a maximum frequency of 120 MHz using the RXv2 32-bit CPU core, delivering 240 DMIPS of processing performance. Its Harvard architecture with 5-stage pipeline, variable-length instructions, and on-chip FPU enable deterministic real-time execution - critical for industrial control loops and graphics rendering in the R5F5651CDGLJ#20.
Does the R5F5651CDGLJ#20 support secure boot and cryptographic operations?
Yes, the R5F5651CDGLJ#20 integrates AES-128/192/256 encryption engines and the Trusted Secure IP (TSIP) module for key management, secure boot verification, and runtime cryptographic acceleration. Combined with Trusted Memory (TM) protection and MPU-enforced memory isolation, these features meet IEC60730 Class B requirements - essential for secure firmware deployment in the R5F5651CDGLJ#20.
What display interfaces does the R5F5651CDGLJ#20 support for HMI applications?
The R5F5651CDGLJ#20 includes a full-featured Graphic-LCD Controller (GLCDC) supporting 24-bit RGB parallel output and a 2D Drawing Engine (DRW2D) for hardware-accelerated bit blitting, rotation, and layer compositing. It handles 32-/16-/8-bpp graphics and CLUT-based formats - enabling responsive, low-CPU-load UI rendering directly from the R5F5651CDGLJ#20 without external GPU.
How many CAN channels does the R5F5651CDGLJ#20 integrate, and what standards do they comply with?
The R5F5651CDGLJ#20 integrates two independent CAN modules, each compliant with ISO11898-1 (CAN 2.0A/B) and supporting both standard and extended frames. Each channel provides 32 configurable mailboxes with programmable acceptance filtering - enabling robust fieldbus communication in industrial networks, vehicle subsystems, and building automation systems built around the R5F5651CDGLJ#20.
What is the package type and pin count of the R5F5651CDGLJ#20?
The R5F5651CDGLJ#20 uses the PLQP0176KB-A package: a 176-pin Low-Profile Fine-Pitch Ball Grid Array measuring 24 × 24 mm with 0.5-mm ball pitch. This LFBGA package supports high I/O density (136 general-purpose pins), 5-V tolerant inputs, and industrial thermal performance - making it the standard package for production-grade implementations of the R5F5651CDGLJ#20.
R5F5651CDGLJ#20 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 100-TFLGA
- Series:
- RX651
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- -
- Core Processor:
- RXv2
- Core Size:
- 32-Bit
- 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:
- External
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F5651CDGLJ#20 FAQ
1.How can I place an order for R5F5651CDGLJ#20 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F5651CDGLJ#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 R5F5651CDGLJ#20 reliable?
The price and inventory of R5F5651CDGLJ#20 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F5651CDGLJ#20 is usually 5 days.
3.What payment methods are accepted for R5F5651CDGLJ#20?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F5651CDGLJ#20 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F5651CDGLJ#20?
R5F5651CDGLJ#20 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F5651CDGLJ#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 R5F5651CDGLJ#20?
For technical support, including R5F5651CDGLJ#20 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F5651CDGLJ#20 requirements.
6.How does Aetrix verify that R5F5651CDGLJ#20 is sourced from the original manufacturer or authorized distributors?
All R5F5651CDGLJ#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 R5F5651CDGLJ#20 meets industry standards.
7.What is the process for return or replacement of R5F5651CDGLJ#20?
All R5F5651CDGLJ#20 units undergo pre-shipment inspection (PSI). If there is an issue with R5F5651CDGLJ#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 R5F5651CDGLJ#20 part is unused and in its original packaging.
Return procedure for R5F5651CDGLJ#20:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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