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Renesas R5F5631WDDFB#V0
- Part No.:
- R5F5631WDDFB#V0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 144-LQFP
- Datasheet:
-
R5F5631WDDFB#V0.pdf
- Description:
- IC MCU 32BIT 1MB FLASH 144LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:3,570
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Product details
Overview
R5F5631WDDFB#V0 from Renesas is a 100 MHz 32-bit RX631 Group microcontroller featuring a single-precision IEEE-754 FPU, 128 KB on-chip SRAM, 2 MB flash memory, 32 KB data flash, and integrated 12-bit/10-bit A/D converters - designed for industrial control systems requiring deterministic real-time response, secure firmware updates, and low-power operation across -40°C to +85°C.
For engineers reviewing the R5F5631WDDFB#V0 datasheet, R5F5631WDDFB#V0 pinout, R5F5631WDDFB#V0 application, or R5F5631WDDFB#V0 equivalent, this MCU delivers verified Ethernet MAC omission (vs. RX63N), USB 2.0 full-speed host/function support, CAN v2.0B compliance with 32 mailboxes, and IEC60730 safety features including CRC, self-diagnostic A/D, and oscillation-stop detection - critical for functional safety certification in motor drives and building automation.
Technical Context
The R5F5631WDDFB#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 supports little-endian or big-endian data arrangement - enabling robust partitioning of firmware tasks and secure runtime isolation.
Its clock system combines external crystal oscillator support (4–16 MHz), internal 50-MHz HOCO and 125-kHz LOCO, plus PLL-based frequency synthesis to deliver precise 100-MHz ICLK, 50-MHz PCLK/FCLK/BCLK domains. The device omits Ethernet MAC and SDRAM controller - distinguishing it from RX63N variants - while retaining full USB 2.0 OTG, CAN, and up to 13 SCI channels for multi-protocol connectivity.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | RX 32-bit CPU, 100 MHz max - enables 165 DMIPS real-time throughput with deterministic interrupt latency. |
| Memory | 2 MB flash (no wait states at 100 MHz), 128 KB SRAM, 32 KB reprogrammable data flash - supports background programming and secure firmware updates. |
| FPU | Single-precision IEEE-754 compliant - accelerates motor control algorithms and sensor fusion without software emulation overhead. |
| A/D Converter | 21-channel 12-bit S12AD + 8-channel 10-bit AD - includes sample-and-hold, conversion trigger from MTU/TPU/TMR, and temperature sensor interface. |
| Communication | USB 2.0 full-speed host/function/OTG (1 port), CAN v2.0B (3 modules, 32 mailboxes), 13 SCI, 4 RIIC (1 Mbps), 3 RSPI - enables mixed-protocol fieldbus integration. |
| Security & Safety | DEU AES-128/192/256 encryption, CRC calculator, IWDT with dedicated LOCO clock, A/D self-diagnostic - meets IEC60730 Class B requirements. |
| Power & Temp | 2.7–3.6 V supply, 500 µA/MHz active current, four low-power modes, -40°C to +85°C operating range - suitable for uncooled industrial enclosures. |
Pinout & Package
Package: PLQP0144KA-A - 144-pin LQFP, 20 × 20 mm, 0.5-mm pitch, RoHS-compliant, lead-free.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC, AVCC0, VREFH | Core/analog power supply | 2.7–3.6 V main supply; VREFH sets 10-/12-bit A/D reference voltage; decoupling required per Renesas layout guidelines. |
| XTAL, EXTAL | Main clock oscillator input/output | Supports 4–16 MHz crystal; enables PLL-based 100 MHz system clock; requires external load capacitors. |
| RESET | Active-low reset input | Asynchronous reset assertion; compatible with external supervisor ICs; debounced internally for noise immunity. |
| USB_VBUS, USB_DP, USB_DM | USB 2.0 physical interface | Full-speed differential pair with integrated transceiver; VBUS sensing enables host/device role negotiation and OTG switching. |
| TXDn, RXDn (SCI) | Asynchronous serial I/O | Up to 13 SCI channels support UART, smart card, SPI/I²C emulation - configurable baud rates via on-chip generator. |
| TXDn, RXDn (CAN) | CAN bus interface | Three independent CAN modules with 32 mailboxes each; supports standard/extended frames and error frame handling per ISO 11898-1. |
Key Features
| Feature | Design Value |
|---|---|
| IEC60730 Compliance Support | Integrated CRC calculator, oscillation-stop detection, IWDT with dedicated clock, and A/D self-diagnostic - reduces external safety component count for Class B certification. |
| Flexible Clock Architecture | Independent ICLK/PCLK/FCLK/BCLK domains with programmable dividers/multipliers - allows simultaneous high-speed CPU execution and lower-speed peripheral operation to minimize power. |
| Secure Firmware Execution | Memory Protection Unit (MPU) enforces privilege levels and region access control; DEU AES engine enables encrypted boot and OTA update verification. |
| Deterministic Real-Time Timers | MTU2 (6-channel), TPU (12-channel), CMT (4-channel), and PPG (32-pulse) provide synchronized PWM, capture, and trigger generation - essential for motor phase control and encoder interfacing. |
| Robust I/O Capabilities | 111 general-purpose I/O pins (144-pin package), 5-V tolerant on 18 pins, open-drain outputs, pull-up resistors - simplifies level-shifting and direct connection to industrial sensors/actuators. |
Applications
| Industrial Motor Control | Building Automation Gateway |
|---|---|
|
Use Scenario: Closed-loop control of 3-phase BLDC motors in HVAC compressors and pumps using space-vector PWM and position feedback. IC Role / Device Role / Timing Role: Main controller executing FOC algorithm via RX FPU, generating synchronized 6-channel PWM via MTU2, sampling current/voltage via 12-bit A/D with hardware triggers. Use Value: 100 MHz deterministic timing ensures <1 µs PWM dead-time control; 128 KB SRAM buffers sensor data for predictive maintenance analytics. |
Use Scenario: Protocol translation gateway aggregating Modbus RTU, BACnet MS/TP, and KNX devices into a unified IP network. IC Role / Device Role / Timing Role: Multi-protocol bridge managing concurrent SCI, CAN, and USB interfaces; RTC maintains time-stamped event logs during power loss. Use Value: 13 SCI channels enable simultaneous legacy fieldbus connections; USB host mode supports firmware updates via flash drive without PC dependency. |
| Medical Infusion Pump | Smart Energy Meter |
|
Use Scenario: Precision fluid delivery system requiring fail-safe operation, flow rate monitoring, and tamper-resistant logging. IC Role / Device Role / Timing Role: Safety-critical controller performing IEC60730 self-tests, driving stepper motor via PPG-triggered TPU PWM, and capturing pressure sensor data via A/D with sample-and-hold. Use Value: IWDT with dedicated LOCO clock guarantees watchdog independence from main clock faults; CRC calculator validates EEPROM parameter integrity. |
Use Scenario: Revenue-grade metering with harmonic analysis, tamper detection, and secure remote firmware updates over PLC or RF mesh. IC Role / Device Role / Timing Role: Metrology processor acquiring voltage/current waveforms via 12-bit A/D at 1 MSPS, running FFT via FPU, and encrypting data via DEU before transmission. Use Value: AES-256 encryption secures firmware images; 2 MB flash accommodates dual-bank OTA updates with rollback capability. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F563NEDDFB#V0 | RX63N variant with identical 144-pin LQFP package, 2 MB flash, 128 KB SRAM, but adds Ethernet MAC and SDRAM controller. | Suitable where 10/100 Mbps wired connectivity and external memory expansion are required - e.g., industrial IoT edge nodes with web server capability. | Select R5F563NEDDFB#V0 only if Ethernet or SDRAM is mandatory; otherwise R5F5631WDDFB#V0 offers lower cost and reduced layout complexity. |
| R5F566TDDFB#V0 | RX66T variant in same 144-pin LQFP package, 2 MB flash, 192 KB SRAM, enhanced timer resolution (1 ns), and dual-core lockstep option for ASIL-B. | Targeted at automotive EPS and inverters requiring ISO 26262 compliance - includes hardware safety mechanisms absent in RX631. | Choose R5F566TDDFB#V0 for automotive functional safety; R5F5631WDDFB#V0 remains optimal for industrial IEC60730 applications without ASIL requirements. |
Compared with R5F563NEDDFB#V0, the R5F5631WDDFB#V0 eliminates Ethernet/SDRAM to reduce BOM cost and PCB layer count while retaining full USB/CAN/SCI connectivity; versus R5F566TDDFB#V0, it provides proven IEC60730 support at lower gate count and power, making it ideal for cost-sensitive industrial controls where ASIL-B is not mandated.
Availability
R5F5631WDDFB#V0 is available at Aetrix Electronics and suitable for industrial motor control, building automation gateways, medical infusion pumps, and smart energy meters requiring stable component supply, long-term lifecycle assurance, and traceable sourcing.
Supply support for R5F5631WDDFB#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 enterprise applications.
The RX631 Group is engineered for high-integrity industrial control - emphasizing IEC60730 compliance, deterministic real-time performance, and mixed-signal integration - targeting motor drives, factory automation, and medical equipment.
FAQ
What is the maximum operating frequency and core architecture of the R5F5631WDDFB#V0?
The R5F5631WDDFB#V0 operates at a maximum frequency of 100 MHz using the 32-bit RX CPU core with CISC Harvard architecture, 5-stage pipeline, and variable-length instructions. It achieves 165 DMIPS performance and includes a single-precision IEEE-754 floating-point unit - enabling efficient execution of motor control algorithms and sensor fusion without software emulation overhead in the R5F5631WDDFB#V0.
Does the R5F5631WDDFB#V0 include an Ethernet MAC controller?
No, the R5F5631WDDFB#V0 belongs to the RX631 Group, which explicitly omits the Ethernet MAC and associated EDMAC - unlike the RX63N Group. This distinction is confirmed in Renesas documentation (R01DS0098EJ0180), where Table 1.2 shows Ethernet controller availability only for RX63N packages. The R5F5631WDDFB#V0 retains full USB 2.0, CAN, and SCI connectivity for non-Ethernet industrial networking.
What memory resources are integrated in the R5F5631WDDFB#V0?
The R5F5631WDDFB#V0 integrates 2 MB of on-chip flash memory (with no wait states at 100 MHz), 128 KB of SRAM, and 32 KB of reprogrammable data flash rated for 100,000 erase/write cycles. Flash supports on-board programming and background operations, while SRAM includes deep software standby backup capability - all verified in the R5F5631WDDFB#V0 datasheet section 1.1 and Table 1.1.
Which communication interfaces does the R5F5631WDDFB#V0 support?
The R5F5631WDDFB#V0 supports USB 2.0 full-speed host/function/OTG (1 port), three CAN modules compliant with ISO 11898-1 (32 mailboxes each), up to 13 SCI channels with UART/Smart Card/SPI/I²C emulation, four RIIC buses (1 Mbps max), and three RSPI interfaces. These are confirmed in Table 1.2 of the R5F5631WDDFB#V0 datasheet and apply specifically to the 144-pin LQFP package.
What safety and security features are included in the R5F5631WDDFB#V0?
The R5F5631WDDFB#V0 includes IEC60730-compliant features: CRC calculator with three polynomials, oscillation-stop detection, independent watchdog timer (IWDT) with dedicated 125-kHz LOCO clock, and self-diagnostic A/D converter functionality. It also integrates a Data Encryption Unit (DEU) supporting AES-128/192/256 in ECB/CBC modes - all documented in the R5F5631WDDFB#V0 feature list and safety chapter of R01DS0098EJ0180.
R5F5631WDDFB#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:
R5F5631WDDFB#V0 FAQ
1.How can I place an order for R5F5631WDDFB#V0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F5631WDDFB#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 R5F5631WDDFB#V0 reliable?
The price and inventory of R5F5631WDDFB#V0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F5631WDDFB#V0 is usually 5 days.
3.What payment methods are accepted for R5F5631WDDFB#V0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F5631WDDFB#V0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F5631WDDFB#V0?
R5F5631WDDFB#V0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F5631WDDFB#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 R5F5631WDDFB#V0?
For technical support, including R5F5631WDDFB#V0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F5631WDDFB#V0 requirements.
6.How does Aetrix verify that R5F5631WDDFB#V0 is sourced from the original manufacturer or authorized distributors?
All R5F5631WDDFB#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 R5F5631WDDFB#V0 meets industry standards.
7.What is the process for return or replacement of R5F5631WDDFB#V0?
All R5F5631WDDFB#V0 units undergo pre-shipment inspection (PSI). If there is an issue with R5F5631WDDFB#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 R5F5631WDDFB#V0 part is unused and in its original packaging.
Return procedure for R5F5631WDDFB#V0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
R5F5631WDDFB#V0 Tags
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