Renesas R5F5631WDGFP#V0
- Part No.:
- R5F5631WDGFP#V0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 100-LQFP
- Datasheet:
-
R5F5631WDGFP#V0.pdf
- Description:
- RX631 MCU 1MB 192KB LQFP100 105C
- Quantity:
- Payment:

- Shipping:

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Product details
Overview
R5F5631WDGFP#V0 from Renesas is a 100 MHz 32-bit RX CPU core microcontroller in the RX631 Group, featuring 512 KB on-chip flash memory, 64 KB SRAM, single-precision IEEE-754 FPU, and integrated 10-/12-bit A/D converters. It supports USB 2.0 full-speed host/function, CAN (2 channels), up to 13 SCI interfaces, and operates from a 2.7–3.6 V supply across –40 to +85°C - deployed in industrial HMI and networked sensor gateways.
For engineers reviewing the R5F5631WDGFP#V0 datasheet, R5F5631WDGFP#V0 pinout, R5F5631WDGFP#V0 application, or R5F5631WDGFP#V0 equivalent, key selection criteria include its RX631 Group identity (no Ethernet MAC), LQFP-100 package with 78 GPIOs, 5-V-tolerant I/O, and support for IEC60730-compliant safety functions including CRC, self-diagnostic A/D, and oscillation-stop detection.
Technical Context
The R5F5631WDGFP#V0 implements the CISC Harvard-architecture RX CPU with 5-stage pipeline, variable-length instructions, and MPU support. It executes at 165 DMIPS @ 100 MHz and includes dual multiply-and-accumulate units, 32-bit multiplier (1-cycle), and divider (2-cycle), enabling deterministic real-time control.
Its peripheral set excludes Ethernet MAC (distinguishing it from RX63N) but integrates USB 2.0 host/function/OTG, CAN v2.0B (2 modules × 32 mailboxes), 13-channel SCI with smart-card and LIN modes, and a dedicated DEU for AES-128/192/256 encryption - all synchronized via independent clock domains (ICLK/PCLK/FCLK/BCLK).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | RX 32-bit CPU, 100 MHz max, 165 DMIPS - enables high-throughput deterministic firmware execution without external co-processing. |
| Memory | 512 KB flash (no wait states @ 100 MHz), 64 KB SRAM, 32 KB data flash - sufficient for secure boot, OTA update staging, and real-time buffer management. |
| A/D Converter | 21-channel 12-bit S12AD + 8-channel 10-bit AD - supports simultaneous sampling of analog sensors with 1.0 µs conversion time @ PCLK=50 MHz. |
| Communication | USB 2.0 full-speed host/function/OTG, CAN (2 modules), 13× SCI, 4× RIIC (1 Mbps), 3× RSPI - covers fieldbus, human interface, and diagnostics connectivity. |
| Security & Safety | AES-128/192/256 (ECB/CBC), CRC calculator, IWDT, oscillation-stop detection, A/D self-diagnostic - meets IEC60730 Class B requirements out-of-box. |
| Power & Temp | 2.7–3.6 V operation, 500 µA/MHz active current, –40 to +85°C (D version) - suitable for unregulated industrial power rails and extended ambient environments. |
| I/O | 78 general-purpose pins, 5-V tolerant, open-drain configurable, 17 with 5-V tolerance - simplifies level-shifting in mixed-voltage systems. |
Pinout & Package
Package: PLQP0100KB-A, 100-pin LQFP (14 × 14 mm, 0.5-mm pitch), RoHS-compliant, moisture sensitivity level 3.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC / VSS | Power supply / Ground | Dedicated analog/digital power pins with decoupling requirements per Renesas layout guidelines; AVCC0 must be ≥2.7 V for A/D reference stability. |
| XTAL / EXTAL | Main crystal oscillator input/output | Supports 4–16 MHz external crystal; required for precise timing in USB, CAN, and RTC applications - internal PLL generates 100 MHz ICLK. |
| RESET | Active-low reset input | Asynchronous reset pin with internal pull-up; accepts 100 ns minimum pulse width; triggers POR, LVD, and software-initiated resets. |
| USB_VBUS / USB_DP / USB_DM | USB power detection / differential data | Enables bus-powered/full-speed USB device/host operation; VBUS sensing allows automatic mode switching between host/device roles. |
| TXDn / RXDn (SCI) | Asynchronous serial transmit/receive | Multiple SCI channels mapped to dedicated pins; hardware flow control (RTS/CTS) supported on select channels for robust industrial comms. |
| TXDn / RXDn (CAN) | CAN transceiver interface | CAN0/CAN1 differential signal pairs require external transceivers; pins are TTL-level and not 5-V tolerant - match to ISO11898-2 compliant drivers. |
Key Features
| Feature | Design Value |
|---|---|
| Floating-point unit (FPU) | IEEE-754 single-precision hardware acceleration reduces math-intensive algorithm latency by >10× vs. software emulation - critical for motor control and sensor fusion. |
| IEC60730 safety suite | Integrated CRC calculator, oscillation-stop detection, IWDT, and A/D self-test enable Class B certification without external components or firmware overhead. |
| Flexible clock system | Independent ICLK/PCLK/FCLK/BCLK domains allow dynamic scaling: CPU runs at 100 MHz while peripherals operate at lower frequencies to reduce EMI and power. |
| USB 2.0 OTG support | Single-port dual-role capability eliminates need for separate host/device controllers - enables field-serviceable firmware updates via USB stick or PC connection. |
| 5-V tolerant I/O | 17 pins tolerate 5 V inputs even when VCC = 2.7 V - permits direct interfacing with legacy 5-V logic, sensors, and displays without level shifters. |
Applications
| Industrial HMI Controller | Smart Sensor Gateway |
|---|---|
|
Use Scenario: Local operator interface for PLC-controlled machinery with touch panel, LED indicators, and push-button inputs. IC Role / Device Role / Timing Role: Main application processor executing real-time UI rendering, CAN bus polling, and USB-based configuration upload. Use Value: 100 MHz RX core + 512 KB flash enables responsive graphics rendering and local data logging; 5-V tolerant I/O directly drives legacy panel hardware. |
Use Scenario: Aggregation node collecting analog/digital sensor data (temperature, pressure, vibration) and forwarding via CAN or USB to SCADA systems. IC Role / Device Role / Timing Role: Central acquisition controller managing synchronized A/D sampling, CRC-protected packet assembly, and USB/SCI protocol translation. Use Value: Integrated 12-bit A/D with sample-and-hold and hardware-triggered conversion ensures accurate multi-channel acquisition; DEU secures firmware updates over USB. |
| Networked HVAC Controller | IEBus Automotive Diagnostic Tool |
|
Use Scenario: Standalone HVAC zone controller communicating with thermostats, dampers, and chillers over RS485 and CAN networks. IC Role / Device Role / Timing Role: Real-time environmental regulation engine running PID loops, interpreting Modbus/SCPI commands, and managing fan speed via PWM outputs. Use Value: MTU2/TPU timers provide precise 16-bit PWM generation and input capture for airflow feedback; 13× SCI channels support concurrent protocol stacks. |
Use Scenario: Portable diagnostic tool connecting to vehicle ECUs via IEBus for reading fault codes and live parameter streaming. IC Role / Device Role / Timing Role: Protocol bridge translating USB host commands into IEBus frames and parsing responses with hardware CRC validation. Use Value: Dedicated IEBus module (1 channel) handles half-duplex asynchronous framing and broadcast addressing natively - no bit-banging or timing-critical firmware. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 32-bit MCU applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F563NEDDFP | RX63N Group, includes Ethernet MAC and SDRAM controller; same LQFP-100 package and 2 MB flash. | Required where 10/100 Mbps wired networking or external memory expansion is mandatory - e.g., industrial Ethernet I/O modules. | Select only if Ethernet or SDRAM interface is needed; otherwise R5F5631WDGFP#V0 offers lower cost and reduced complexity. |
| R5F566TDDFP | RX66T Group, 160 MHz, FPU + DSP extensions, 32 KB D-cache, enhanced timer resolution (1 ns), but no USB host/OTG. | Better suited for servo drive control requiring sub-microsecond PWM jitter and real-time interrupt response - lacks USB configurability. | Choose for motion control applications demanding higher compute throughput and deterministic timing; avoid if USB host or CAN+USB coexistence is required. |
Compared with R5F563NEDDFP, R5F5631WDGFP#V0 removes Ethernet overhead for cost-sensitive non-networked edge nodes; versus R5F566TDDFP, it retains full USB 2.0 host/function/OTG and broader peripheral compatibility at lower clock speed and price.
Availability
R5F5631WDGFP#V0 is available at Aetrix Electronics and suitable for industrial HMI, smart sensor gateways, HVAC controllers, and automotive diagnostic tools requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant manufacturing.
Supply support for R5F5631WDGFP#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 industrial, automotive, and IoT markets.
The RX631 Group targets cost-optimized, safety-certifiable embedded control applications - delivering high-performance 32-bit processing with integrated security, communication, and analog peripherals in compact packages like the R5F5631WDGFP#V0.
FAQ
What is the maximum operating frequency and core architecture of the R5F5631WDGFP#V0?
The R5F5631WDGFP#V0 features a 32-bit RX CPU core with a maximum operating frequency of 100 MHz and delivers 165 DMIPS performance. Its CISC Harvard architecture includes a 5-stage pipeline, variable-length instructions, and hardware support for single-precision IEEE-754 floating-point operations - all confirmed in Renesas document R01DS0098EJ0180.
Does the R5F5631WDGFP#V0 include an Ethernet MAC controller?
No, the R5F5631WDGFP#V0 belongs to the RX631 Group, which explicitly excludes the Ethernet MAC and EDMAC peripherals present in the RX63N Group. This distinction is documented in Table 1.2 of R01DS0098EJ0180, confirming R5F5631WDGFP#V0 is intended for non-Ethernet applications such as USB-connected gateways and CAN-based controllers.
What package type and pin count does the R5F5631WDGFP#V0 use?
The R5F5631WDGFP#V0 uses the PLQP0100KB-A package: a 100-pin LQFP measuring 14 × 14 mm with 0.5-mm pitch. It provides 78 general-purpose I/O pins, 17 of which are 5-V tolerant, and supports on-board programming via JTAG or FINE debugging interfaces - per package specifications in R01DS0098EJ0180 Section 1.1.
How much on-chip memory does the R5F5631WDGFP#V0 integrate?
The R5F5631WDGFP#V0 integrates 512 KB of on-chip flash memory (with zero wait states at 100 MHz), 64 KB of SRAM, and 32 KB of reprogrammable data flash rated for 100,000 erase/write cycles. These values are specified in Table 1.1 and confirmed in the RX631 product listing on page 9 of R01DS0098EJ0180.
Which communication interfaces are supported by the R5F5631WDGFP#V0?
The R5F5631WDGFP#V0 supports USB 2.0 full-speed host/function/OTG (1 port), CAN v2.0B (2 modules, 32 mailboxes each), up to 13 SCI channels (including LIN and smart-card modes), 4× I2C (RIIC, up to 1 Mbps), 3× RSPI, and IEBus - all detailed in Table 1.1 and the RX631 column of Table 1.2 in R01DS0098EJ0180.
R5F5631WDGFP#V0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 100-LQFP
- Series:
- RX600
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- -
- Core Processor:
- RX
- Core Size:
- 32-Bit
- Speed:
- 100MHz
- Connectivity:
- CANbus, EBI/EMI, Ethernet, I2C, LINbus, SCI, SPI, USB
- Peripherals:
- DMA, LVD, POR, PWM, WDT
- Number of I/O:
- 78
- Program Memory Size:
- 1MB (1M x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 32K x 8
- RAM Size:
- 192K x 8
- Voltage - Supply (Vcc/Vdd):
- 2.7V ~ 3.6V
- Data Converters:
- A/D 8x10b, 14x12b; D/A 1x10b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F5631WDGFP#V0 FAQ
1.How can I place an order for R5F5631WDGFP#V0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F5631WDGFP#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 R5F5631WDGFP#V0 reliable?
The price and inventory of R5F5631WDGFP#V0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F5631WDGFP#V0 is usually 5 days.
3.What payment methods are accepted for R5F5631WDGFP#V0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F5631WDGFP#V0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F5631WDGFP#V0?
R5F5631WDGFP#V0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F5631WDGFP#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 R5F5631WDGFP#V0?
For technical support, including R5F5631WDGFP#V0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F5631WDGFP#V0 requirements.
6.How does Aetrix verify that R5F5631WDGFP#V0 is sourced from the original manufacturer or authorized distributors?
All R5F5631WDGFP#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 R5F5631WDGFP#V0 meets industry standards.
7.What is the process for return or replacement of R5F5631WDGFP#V0?
All R5F5631WDGFP#V0 units undergo pre-shipment inspection (PSI). If there is an issue with R5F5631WDGFP#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 R5F5631WDGFP#V0 part is unused and in its original packaging.
Return procedure for R5F5631WDGFP#V0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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