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Renesas R5F5631BDGFC#V0
- Part No.:
- R5F5631BDGFC#V0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 176-LQFP
- Datasheet:
-
R5F5631BDGFC#V0.pdf
- Description:
- 32BIT MCU RX631
- Quantity:
- Payment:
- Shipping:
Inventory:1,062
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Product details
Overview
R5F5631BDGFC#V0 from Renesas is a 100 MHz 32-bit RX CPU-based microcontroller in the RX631 Group, featuring 1 MB on-chip flash memory, 128 KB SRAM, 32 KB data flash, and integrated 12-bit/10-bit A/D converters, 10-bit D/A converters, RTC, and USB 2.0 function controller - designed for industrial control and embedded HMI applications requiring deterministic real-time performance without Ethernet.
For engineers reviewing the R5F5631BDGFC#V0 datasheet, R5F5631BDGFC#V0 pinout, R5F5631BDGFC#V0 application, or R5F5631BDGFC#V0 equivalent, this part delivers verified 100 MHz operation, IEEE-754 FPU support, IEC60730 safety features, and full peripheral compatibility with the RX631 Group's 176-pin LQFP package (PLQP0176KB-A), enabling drop-in replacement in existing designs targeting cost-optimized, non-Ethernet MCU solutions.
Technical Context
The R5F5631BDGFC#V0 implements the CISC Harvard-architecture RX CPU core with 5-stage pipeline, supporting 165 DMIPS at 100 MHz and single-precision floating-point arithmetic per IEEE-754. It integrates a memory protection unit (MPU), JTAG/FINE debug interfaces, and four low-power modes including deep software standby with SRAM retention.
Its peripheral set includes 13 SCI channels (with UART, SPI, I²C, LIN, smart-card modes), 4 RIIC interfaces (1 FM+), 3 CAN modules (ISO 11898-1 compliant), 21-channel 12-bit S12AD and 8-channel 10-bit AD converters, 2-channel 10-bit DA, temperature sensor (±1°C), CRC calculator, and AES-128/192/256 DEU - all operating from a single 2.7–3.6 V supply.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | RX 32-bit CISC Harvard architecture, 5-stage pipeline, 165 DMIPS @ 100 MHz |
| Max Operating Frequency | 100 MHz system clock (ICLK), enabling deterministic real-time execution |
| Flash Memory | 1 MB on-chip main flash, zero-wait-state access at 100 MHz |
| SRAM | 128 KB on-chip SRAM, zero-wait-state access, supports deep software standby backup |
| A/D Converter | 21 × 12-bit S12AD + 8 × 10-bit AD, 1.0 μs conversion time @ PCLK = 50 MHz |
| D/A Converter | 2 × 10-bit DA outputs, voltage range 0 V to VREFH (2.7–3.6 V) |
| Operating Temperature | −40°C to +85°C (D version), validated for industrial ambient conditions |
| Supply Voltage | 2.7–3.6 V (VCC/AVCC0/VREFH/VCC_USB), 2.3–3.6 V for VBATT (RTC backup) |
Pinout & Package
Package: PLQP0176KB-A - 176-pin LQFP, 24 mm × 24 mm, 0.5 mm pitch, RoHS-compliant, lead-free.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC, AVCC0, VREFH | Core/analog reference power supply | Single 2.7–3.6 V rail powers CPU, peripherals, and ADC/DAC references; decoupling required per datasheet layout guidelines |
| VBATT | RTC backup supply | Enables calendar/clock operation during main power loss; min. 2.3 V for D-version parts |
| XTAL/EXTAL | Main crystal oscillator input/output | Supports 4–16 MHz external crystals for precise system timing; internal PLL generates 100 MHz ICLK |
| RESET | Active-low reset input | Asynchronous hardware reset; combined with POR and LVD for robust power-on initialization |
| IRQ0–IRQ15 | External interrupt inputs | 16 dedicated pins for edge-triggered interrupts; configurable polarity and priority levels |
| PA0–PA15, PB0–PB15, etc. | General-purpose I/O ports | 133 total GPIOs (176-pin package); 5-V tolerant on 18 pins, open-drain capable, pull-up configurable |
Key Features
| Feature | Design Value |
|---|---|
| Floating-point unit (FPU) | IEEE-754 single-precision 32-bit FPU enables efficient math-intensive control algorithms without software emulation overhead |
| IEC60730 safety support | Integrated oscillation-stop detection, CRC calculator, self-diagnostic A/D, IWDT, and frequency measurement meet Class B compliance requirements |
| Flexible communication suite | 13 SCI channels (UART/SPI/I²C/LIN), 4 RIIC (1 FM+), 3 CAN, 3 RSPI, and USB 2.0 function controller enable multi-protocol industrial connectivity |
| Low-power operation | 500 μA/MHz active current; four low-power modes (sleep, module-stop, software standby, deep software standby) extend battery life in portable systems |
| Secure data handling | AES-128/192/256 encryption/decryption via DEU supports secure firmware updates and data-at-rest protection |
| Real-time precision | RTC with alarm, periodic, and carry interrupts; time-capture on external event pins enables synchronized timestamping of field events |
Applications
| Industrial PLC I/O Module | Smart Energy Metering |
|---|---|
|
Use Scenario: Standalone DIN-rail-mounted I/O expansion module collecting analog sensor data and controlling relays in factory automation. IC Role / Device Role / Timing Role: Main controller executing cyclic scan logic, managing 21-channel 12-bit A/D sampling, 2-channel D/A output, and CAN bus communication with master PLC. Use Value: Deterministic 100 MHz execution ensures sub-millisecond I/O update cycles; integrated MPU and IEC60730 features reduce functional safety certification effort. |
Use Scenario: Three-phase electricity meter with tariff switching, tamper detection, and local display interface. IC Role / Device Role / Timing Role: System-on-chip managing metrology ADC interface, RTC-based billing intervals, LCD driver, and IR/RS485 communication stack. Use Value: On-chip 128 KB SRAM buffers waveform samples; temperature sensor (±1°C) compensates metrology drift; AES-256 secures firmware updates over HAN. |
| Embedded HMI Controller | Building Automation Gateway |
|
Use Scenario: Touch-enabled wall panel for HVAC control with local logic, graphical rendering, and cloud connectivity via external Wi-Fi module. IC Role / Device Role / Timing Role: Application processor running RTOS, driving parallel LCD interface (via PDC), managing USB HID device stack, and servicing touch controller over I²C. Use Value: 1 MB flash stores GUI assets and firmware; USB 2.0 function mode enables direct PC configuration; 133 GPIOs support capacitive touch matrix and LED indicators. |
Use Scenario: Protocol translator bridging BACnet MS/TP, Modbus RTU, and KNX devices in commercial HVAC systems. IC Role / Device Role / Timing Role: Multi-protocol gateway controller with three independent CAN channels, 13 SCI ports, and dual RSPI for SPI-to-serial bridge ICs. Use Value: Hardware CRC and DMA-accelerated SCI transfers ensure reliable long-frame protocol parsing; 48 MHz peripheral clock (PCLK) sustains 115.2 kbps on 13 serial links simultaneously. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F5631EDGFC#V0 | Same RX631 Group, identical 176-pin LQFP package, but with 2 MB flash and 256 KB SRAM | Targeted at applications requiring larger code footprint or extended data buffering (e.g., OTA firmware staging) | Select when >1 MB flash or >128 KB RAM is needed; otherwise R5F5631BDGFC#V0 offers optimal cost/performance balance |
| R5F5630BDGFC#V0 | Same package and pinout, but RX630 Group - no FPU, no DEU, reduced peripheral count (e.g., only 1 CAN, 8 SCI) | Suitable for simpler control tasks where floating-point math or cryptographic security is unnecessary | Choose for legacy migration or cost-sensitive designs omitting FPU/DEU; not suitable for IEC60730 Class B or math-heavy control loops |
Compared with R5F5631EDGFC#V0, the R5F5631BDGFC#V0 trades flash/RAM capacity for lower BOM cost while retaining full peripheral feature set; versus R5F5630BDGFC#V0, it adds critical safety and compute capabilities - making it the minimal viable RX631 solution for certified industrial firmware.
Availability
R5F5631BDGFC#V0 is available at Aetrix Electronics and suitable for industrial PLC I/O modules, smart energy meters, embedded HMI controllers, and building automation gateways requiring stable component supply across multi-year production cycles.
Supply support for R5F5631BDGFC#V0 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 RX631 Group - including R5F5631BDGFC#V0 - was engineered for cost-sensitive industrial control applications demanding real-time determinism, functional safety compliance, and rich peripheral integration without Ethernet overhead.
FAQ
What is the maximum operating frequency of the R5F5631BDGFC#V0?
The R5F5631BDGFC#V0 operates at a maximum system clock frequency of 100 MHz, delivering 165 DMIPS performance. This frequency is achieved using the internal PLL locked to an external 4–16 MHz crystal oscillator, with zero-wait-state access to both 1 MB flash and 128 KB SRAM - ensuring deterministic real-time response in control-loop applications.
Does the R5F5631BDGFC#V0 include an Ethernet controller?
No, the R5F5631BDGFC#V0 belongs to the RX631 Group, which explicitly excludes the Ethernet MAC (ETHERC) and associated EDMAC found in the RX63N Group. This omission reduces silicon cost and power consumption, making R5F5631BDGFC#V0 ideal for non-networked industrial controllers where CAN, USB, or serial protocols suffice.
What safety certifications does the R5F5631BDGFC#V0 support?
The R5F5631BDGFC#V0 integrates hardware features required for IEC60730 Class B compliance, including oscillation-stop detection, CRC calculator, self-diagnostic A/D converter, independent watchdog timer (IWDT), and clock frequency measurement - enabling certified firmware implementations without external safety monitors.
Can the R5F5631BDGFC#V0 operate from a single power supply?
Yes, the R5F5631BDGFC#V0 operates from a single 2.7–3.6 V supply applied to VCC, AVCC0, and VREFH pins. Its low-power design draws only 500 μA/MHz in active mode, and the RTC remains functional from a separate 2.3–3.6 V VBATT supply during main power loss - simplifying power architecture in battery-backed systems.
Is the R5F5631BDGFC#V0 pin-compatible with other RX631 Group MCUs?
Yes, the R5F5631BDGFC#V0 uses the PLQP0176KB-A 176-pin LQFP package and shares identical pinout with all other RX631 Group parts in that package variant, including R5F5631EDGFC#V0 and R5F5630BDGFC#V0 - enabling hardware reuse across flash/RAM variants and product generations without PCB redesign.
R5F5631BDGFC#V0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 176-LQFP
- Series:
- RX600
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- -
- Core Processor:
- RX
- Core Size:
- 32-Bit
- Speed:
- 100MHz
- Connectivity:
- CANbus, EBI/EMI, I2C, LINbus, SCI, SPI, UART/USART, USB
- Peripherals:
- DMA, LVD, POR, PWM, WDT
- Number of I/O:
- 133
- Program Memory Size:
- 1MB (1M x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 32K x 8
- RAM Size:
- 128K x 8
- Voltage - Supply (Vcc/Vdd):
- 2.7V ~ 3.6V
- Data Converters:
- A/D 8x10b, 21x12b; D/A 2x10b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F5631BDGFC#V0 FAQ
1.How can I place an order for R5F5631BDGFC#V0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F5631BDGFC#V0 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 R5F5631BDGFC#V0 reliable?
The price and inventory of R5F5631BDGFC#V0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F5631BDGFC#V0 is usually 5 days.
3.What payment methods are accepted for R5F5631BDGFC#V0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F5631BDGFC#V0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F5631BDGFC#V0?
R5F5631BDGFC#V0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F5631BDGFC#V0 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 R5F5631BDGFC#V0?
For technical support, including R5F5631BDGFC#V0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F5631BDGFC#V0 requirements.
6.How does Aetrix verify that R5F5631BDGFC#V0 is sourced from the original manufacturer or authorized distributors?
All R5F5631BDGFC#V0 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 R5F5631BDGFC#V0 meets industry standards.
7.What is the process for return or replacement of R5F5631BDGFC#V0?
All R5F5631BDGFC#V0 units undergo pre-shipment inspection (PSI). If there is an issue with R5F5631BDGFC#V0, 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 R5F5631BDGFC#V0 part is unused and in its original packaging.
Return procedure for R5F5631BDGFC#V0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
R5F5631BDGFC#V0 Tags
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