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Renesas R5F5631WHDFB#V0
- Part No.:
- R5F5631WHDFB#V0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 144-LQFP
- Datasheet:
-
R5F5631WHDFB#V0.pdf
- Description:
- IC MCU 32BIT 1MB FLASH 144LQFP
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
R5F5631WHDFB#V0 from Renesas is a 100 MHz 32-bit RX631 Group microcontroller featuring a single-precision IEEE-754 FPU, 192 KB on-chip SRAM, 1 MB flash memory, and integrated 12-bit/10-bit A/D converters. It supports USB 2.0 full-speed host/function, CAN (ISO 11898-1), up to 13 SCI channels, and operates from a 2.7–3.6 V supply across –40 to +85°C. This MCU targets industrial HMI and networked sensor nodes requiring deterministic real-time control without Ethernet.
For engineers reviewing the R5F5631WHDFB#V0 datasheet, R5F5631WHDFB#V0 pinout, R5F5631WHDFB#V0 application, or R5F5631WHDFB#V0 equivalent, key selection criteria include its 144-pin LQFP (PLQP0144KA-A) package, absence of Ethernet MAC, 192 KB SRAM allocation for real-time buffering, and support for IEC 60730 safety functions including CRC and self-diagnostic A/D.
Technical Context
The R5F5631WHDFB#V0 implements the RX CPU core with CISC Harvard architecture, 5-stage pipeline, and variable-length instructions enabling ultra-compact code density. It integrates a memory protection unit (MPU), JTAG/FINE debug interfaces, and four low-power modes - sleep, all-module clock stop, software standby, and deep software standby - with RTC battery backup capability.
Its peripheral set includes a dedicated DMA controller (DMAC, 4 channels), EXDMAC (2 channels), DTC, and multiple timer units: MTU2 (6-channel 16-bit), TPU (12-channel 16-bit), TMR (4-channel 8-bit), and CMT (4-channel 16-bit). Communication is served by USB 2.0 host/function (full-speed), three CAN channels (32 mailboxes each), four I²C interfaces (up to 1 Mbps), and 13 SCI modules supporting asynchronous, SPI-like, and LIN protocols.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | RX 32-bit CPU, 100 MHz max - delivers 165 DMIPS for deterministic real-time task execution |
| Flash Memory | 1 MB, no-wait-state access at 100 MHz - enables zero-cycle instruction fetch and fast firmware updates |
| SRAM | 192 KB, no-wait-state access - sufficient for dual-buffered communication stacks and real-time data logging |
| A/D Converter | 21 × 12-bit + 8 × 10-bit channels, 1.0 μs conversion time - supports simultaneous sampling of analog sensors and temperature monitoring |
| USB Interface | Full-speed (12 Mbps) host/function/OTG with 2 KB on-chip RAM buffer - enables plug-and-play device connectivity without external memory |
| Operating Voltage | 2.7–3.6 V - compatible with standard industrial 3.3 V rails and simplifies power design |
| Temperature Range | –40 to +85°C (D version) - qualified for extended industrial environments without derating |
Pinout & Package
Package: 144-pin LQFP (PLQP0144KA-A), 20 × 20 mm, 0.5 mm pitch, RoHS-compliant, surface-mount.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC / VSS | Power supply / Ground | Dedicated analog/digital power pins with decoupling requirements per datasheet Section 10.2 |
| XTAL / EXTAL | Main crystal oscillator input/output | Supports 4–16 MHz external crystal for precise system clock generation and PLL reference |
| RESET | Active-low reset input | Accepts asynchronous reset assertion; internal POR and LVD ensure reliable startup under voltage transients |
| USB_DP / USB_DM | USB 2.0 differential data pair | Full-speed physical layer interface; requires 27 Ω series termination and controlled impedance routing |
| TXD0 / RXD0 | SCI0 asynchronous serial I/O | UART-compatible interface for debug console or host communication; supports baud rates up to 4 Mbps |
| AD000–AD020 | Analog input channels | 21 dedicated 12-bit A/D inputs with shared sample-and-hold; AN000–AN020 mapped per Table 1.2 for this package |
Key Features
| Feature | Design Value |
|---|---|
| Floating-point unit (FPU) | Single-precision IEEE-754 compliance enables efficient math-intensive algorithms (e.g., motor control, sensor fusion) without software emulation overhead |
| IEC 60730 safety support | Integrated oscillation-stop detection, CRC calculator, IWDT, and A/D self-diagnostic reduce certification effort for Class B appliance applications |
| Flexible clock system | Multiple on-chip oscillators (LOCO, HOCO), PLL, and independent clock domain division (ICLK/PCLK/FCLK/BCLK) allow optimized power/performance trade-offs per subsystem |
| Real-time timer suite | MTU2 + TPU + TMR + CMT provide 20+ configurable timing resources - supports PWM generation, encoder counting, capture-triggered A/D, and periodic interrupts with sub-microsecond resolution |
| Secure data handling | Data Encryption Unit (DEU) with AES-128/192/256 in ECB/CBC mode enables secure firmware updates and encrypted sensor data storage |
Applications
| Industrial HMI Panel | Smart Sensor Node |
|---|---|
Use Scenario: Standalone touch-based operator interface for PLC-controlled machinery with local data logging and USB configuration port. IC Role / Device Role / Timing Role: Main application processor executing GUI logic, managing USB mass-storage-class configuration, and sampling analog process signals via 12-bit A/D. Use Value: 192 KB SRAM buffers display frame data and logs; 100 MHz CPU ensures responsive UI rendering; USB OTG allows field technicians to load new configurations without programming hardware. |
Use Scenario: Battery-powered environmental sensor node aggregating temperature, humidity, and vibration data, transmitting via CAN bus to gateway. IC Role / Device Role / Timing Role: Central data acquisition and protocol translation engine, using TPU for vibration pulse counting and CMT for low-power wake-up intervals. Use Value: Deep software standby mode draws <500 µA/MHz; integrated temperature sensor (±1°C) eliminates external component; CAN mailbox filtering reduces CPU load during burst traffic. |
| Appliance Control Unit | Medical Diagnostic Instrument |
Use Scenario: Safety-critical washing machine mainboard performing motor control, water level sensing, and fault diagnostics per IEC 60730 Class B. IC Role / Device Role / Timing Role: Real-time controller executing PID loops, validating sensor integrity via A/D self-test, and generating PWM for inverter-driven motor. Use Value: Built-in CRC calculator validates flash integrity; IWDT and oscillation detection satisfy mandatory safety checks; MPU isolates critical tasks from application code. |
Use Scenario: Portable blood glucose meter requiring accurate analog front-end, secure data storage, and USB PC synchronization. IC Role / Device Role / Timing Role: Mixed-signal controller acquiring electrochemical sensor output via 12-bit A/D, encrypting results with DEU, and presenting as USB HID device. Use Value: 1.0 µs A/D conversion enables high-resolution sampling of transient sensor signals; AES encryption protects patient data; 32 KB data flash supports 100,000 rewrites for lifetime logging. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F563NWHDFB#V0 | Same package and pinout; adds Ethernet MAC (10/100 Mbps MII/RMII) and increases flash to 1 MB with Ethernet-specific peripherals | Required where LAN connectivity, TCP/IP stack offload, or Wake-on-LAN is needed - not suitable for cost-sensitive non-networked designs | Select R5F563NWHDFB#V0 only if Ethernet PHY integration and associated BOM cost are justified; otherwise R5F5631WHDFB#V0 reduces complexity and power |
| R5F5630WDFB#V0 | Same RX631 family, 144-pin LQFP, but with 768 KB flash and 128 KB SRAM; lacks DEU and some SCI channels | Suitable for simpler control tasks with lower memory footprint and no cryptographic requirements | Choose R5F5630WDFB#V0 for cost-optimized implementations where AES encryption and extra SRAM headroom are unnecessary |
Compared with R5F563NWHDFB#V0, the R5F5631WHDFB#V0 removes Ethernet hardware to reduce die size, power, and cost while retaining identical USB, CAN, and analog capabilities; versus R5F5630WDFB#V0, it adds 64 KB SRAM and DEU for enhanced real-time buffering and data security - making it optimal for mid-tier industrial edge devices.
Availability
R5F5631WHDFB#V0 is available at Aetrix Electronics and suitable for industrial HMI, smart sensor nodes, appliance control units, and portable medical instruments requiring stable component supply, long-term lifecycle assurance, and consistent parametric performance.
Supply support for R5F5631WHDFB#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, and power solutions for automotive, industrial, and IoT markets.
The RX631 Group is designed for cost-conscious industrial and consumer applications demanding real-time performance, functional safety support, and rich analog/mixed-signal integration - without Ethernet overhead.
FAQ
What is the maximum operating frequency and core architecture of the R5F5631WHDFB#V0?
The R5F5631WHDFB#V0 operates at a maximum frequency of 100 MHz and uses the 32-bit RX CPU core with CISC Harvard architecture, 5-stage pipeline, and variable-length instructions. It delivers 165 DMIPS and includes a single-precision IEEE-754 floating-point unit. The R5F5631WHDFB#V0 core supports memory protection (MPU), fast interrupt response, and ultra-compact code density - essential for deterministic real-time applications.
Does the R5F5631WHDFB#V0 include an Ethernet controller?
No, the R5F5631WHDFB#V0 belongs to the RX631 Group, which explicitly excludes the Ethernet MAC and EDMAC peripherals present in the RX63N Group. This omission reduces silicon area, power consumption, and BOM cost for applications that rely on USB, CAN, or SCI instead of wired LAN connectivity. The R5F5631WHDFB#V0 retains full USB 2.0 host/function/OTG, three CAN channels, and 13 SCI interfaces.
What are the memory resources available on the R5F5631WHDFB#V0?
The R5F5631WHDFB#V0 integrates 1 MB of on-chip flash memory (no wait states at 100 MHz), 192 KB of SRAM (no wait states), and 32 KB of reprogrammable data flash rated for 100,000 erase/write cycles. Flash supports on-board programming via SWD or FINE interface. The R5F5631WHDFB#V0 memory map allocates dedicated regions for code, stack, heap, and data logging - validated in Renesas' RX631 Group Hardware Manual Section 4.
Which communication interfaces does the R5F5631WHDFB#V0 support?
The R5F5631WHDFB#V0 supports USB 2.0 full-speed host/function/OTG (with 2 KB on-chip buffer), three CAN 2.0B modules (32 mailboxes each), four I²C interfaces (one FM+, up to 1 Mbps), 13 SCI channels (supporting UART, SPI-like, LIN, and smart-card modes), three RSPI ports, and one IEBus channel. It does not support Ethernet or SDIO. All interfaces are accessible via the 144-pin LQFP package with dedicated pin assignments per the R5F5631WHDFB#V0 pin list.
Is the R5F5631WHDFB#V0 qualified for industrial temperature operation?
Yes, the R5F5631WHDFB#V0 is rated for industrial temperature range: –40°C to +85°C (D version). It includes features supporting harsh environments - such as low-voltage detection (LVD) with programmable thresholds, RTC battery backup operation down to 2.0 V, and robust ESD tolerance on I/O pins. The R5F5631WHDFB#V0 meets Renesas' industrial qualification standards per JEDEC JESD22-A108 and A114, with full characterization across the specified range.
R5F5631WHDFB#V0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 144-LQFP
- Series:
- RX600
- Packaging:
- Tray
- Product Status:
- Discontinued at Digi-Key
- Programmable:
- Not Verified
- Core Processor:
- RX
- Core Size:
- 32-Bit Single-Core
- Speed:
- 100MHz
- Connectivity:
- CANbus, EBI/EMI, I2C, LINbus, SCI, SPI, USB
- Peripherals:
- DMA, LVD, POR, PWM, WDT
- Number of I/O:
- 111
- 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, 21x12b; D/A 2x10b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F5631WHDFB#V0 FAQ
1.How can I place an order for R5F5631WHDFB#V0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F5631WHDFB#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 R5F5631WHDFB#V0 reliable?
The price and inventory of R5F5631WHDFB#V0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F5631WHDFB#V0 is usually 5 days.
3.What payment methods are accepted for R5F5631WHDFB#V0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F5631WHDFB#V0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F5631WHDFB#V0?
R5F5631WHDFB#V0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F5631WHDFB#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 R5F5631WHDFB#V0?
For technical support, including R5F5631WHDFB#V0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F5631WHDFB#V0 requirements.
6.How does Aetrix verify that R5F5631WHDFB#V0 is sourced from the original manufacturer or authorized distributors?
All R5F5631WHDFB#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 R5F5631WHDFB#V0 meets industry standards.
7.What is the process for return or replacement of R5F5631WHDFB#V0?
All R5F5631WHDFB#V0 units undergo pre-shipment inspection (PSI). If there is an issue with R5F5631WHDFB#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 R5F5631WHDFB#V0 part is unused and in its original packaging.
Return procedure for R5F5631WHDFB#V0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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