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Renesas R5F5631BDGFB#V0
- Part No.:
- R5F5631BDGFB#V0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 144-LQFP
- Datasheet:
-
R5F5631BDGFB#V0.pdf
- Description:
- 32BIT MCU RX631
- Quantity:
- Payment:
- Shipping:
Inventory:2,510
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Product details
Overview
R5F5631BDGFB#V0 from Renesas is a 100 MHz 32-bit RX CPU-based microcontroller in the RX631 Group, featuring 512 KB on-chip flash memory, 64 KB SRAM, 32 KB data flash, and integrated peripherals including USB 2.0 host/function, CAN, 13-channel SCI, 4-channel I²C, 3-channel SPI, 12-bit/10-bit ADCs (21/8 channels), dual 10-bit DACs, RTC, and hardware AES encryption. It targets industrial HMI, motor control, and networked embedded systems requiring deterministic real-time performance and functional safety support.
For engineers reviewing the R5F5631BDGFB#V0 datasheet, R5F5631BDGFB#V0 pinout, R5F5631BDGFB#V0 application, or R5F5631BDGFB#V0 equivalent, this page delivers verified technical context, package-specific pin mapping, confirmed peripheral capabilities, IEC60730-compliant features, and validated alternative parts for design-in and supply continuity planning.
Technical Context
The R5F5631BDGFB#V0 implements the RXv1 CPU core with CISC Harvard architecture, 5-stage pipeline, and variable-length instructions-enabling 165 DMIPS at 100 MHz while supporting IEEE-754 single-precision FPU, 32-bit multiplier (1-cycle), and 32-bit divider (2-cycle). It integrates MPU, JTAG/FINE debug interfaces, and four low-power modes (Sleep, All-module clock stop, Software standby, Deep software standby).
Its peripheral set excludes Ethernet MAC (distinguishing it from RX63N) but includes full-speed USB 2.0 host/function/OTG, three CAN modules (ISO11898-1 compliant, 32 mailboxes each), and dedicated hardware for CRC, oscillation-stop detection, and A/D self-diagnosis-making it suitable for IEC60730 Class B compliance in safety-critical applications.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | RXv1 32-bit CISC core with 5-stage pipeline, 165 DMIPS @ 100 MHz |
| Max Operating Frequency | 100 MHz system clock (ICLK), enabling deterministic real-time execution |
| Flash Memory | 512 KB on-chip main flash, zero-wait-state operation at 100 MHz |
| SRAM | 64 KB on-chip SRAM, zero-wait-state access for instruction and operand storage |
| Data Flash | 32 KB reprogrammable E² data flash, rated for 100,000 erase/write cycles |
| A/D Converters | 21-channel 12-bit ADC + 8-channel 10-bit ADC, 1.0 µs conversion time @ PCLK=50 MHz |
| D/A Converters | 2-channel 10-bit DAC with 0 V to VREFH output range |
| Operating Voltage | 2.7–3.6 V supply (VCC/AVCC0/VREFH/VCC_USB), 2.3–3.6 V battery backup (VBATT) |
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 | Power supply inputs | Core/analog reference supply (2.7–3.6 V); decoupling required per Renesas layout guidelines |
| VBATT | Battery backup supply | Enables RTC and backup registers during main power loss (2.3–3.6 V) |
| XTAL/EXTAL | Main crystal oscillator interface | Supports 4–16 MHz external crystal for precise system timing and PLL input |
| RESET | Active-low reset input | Asynchronous reset assertion; compatible with external POR or supervisor ICs |
| USB_VBUS, USB_DP, USB_DM | USB 2.0 physical interface | Full-speed (12 Mbps) host/function/OTG signaling with integrated transceiver |
| TXDn/RXDn (SCI) | Serial communication I/O | Up to 13 SCI channels configurable as UART, SPI, I²C, smart-card, or LIN |
| TXDn/RXDn (CAN) | CAN bus interface | Three independent CAN modules (ISO11898-1), each with 32 mailboxes and FIFO buffering |
| AD00–AD20, AD0–AD7 | Analog input channels | 21×12-bit + 8×10-bit ADC inputs with shared sample-and-hold and programmable trigger sources |
| DA0, DA1 | Digital-to-analog outputs | Two independent 10-bit DACs with rail-to-rail output capability |
| MTU2/TPU pins | Timer waveform I/O | Support PWM generation, input capture, phase counting, and A/D trigger synchronization |
Key Features
| Feature | Design Value |
|---|---|
| Floating-point unit (FPU) | IEEE-754 single-precision hardware accelerator enabling efficient math-intensive control algorithms |
| Memory Protection Unit (MPU) | Configurable region-based protection for flash, SRAM, and peripheral registers to enforce task isolation |
| IEC60730 safety functions | Integrated oscillation-stop detection, CRC calculator, IWDT, and A/D self-diagnostic for Class B certification |
| Hardware AES engine (DEU) | 128/192/256-bit key length with ECB/CBC mode acceleration for secure firmware updates and data encryption |
| Flexible clock system | Multiple on-chip oscillators (LOCO, HOCO), PLL, and independent clock domains (ICLK/PCLK/FCLK/BCLK) |
| Low-power operation | 500 µA/MHz active current; deep software standby with RTC and backup RAM retention |
Applications
| Industrial Motor Control | Building Automation Gateway |
|---|---|
Use Scenario: Closed-loop control of BLDC/PMSM motors in HVAC blowers and pumps using sensorless FOC algorithms. IC Role / Device Role / Timing Role: Real-time execution of motor control loops, PWM generation via MTU2/TPU, and analog feedback acquisition via 12-bit ADC. Use Value: Deterministic 100 MHz timing ensures sub-microsecond PWM dead-time control and synchronized ADC sampling for torque ripple reduction. |
Use Scenario: Protocol translation between BACnet MS/TP, Modbus RTU, and KNX over wired/wireless backhaul in smart building controllers. IC Role / Device Role / Timing Role: Dual-CAN and multi-SCI interface management with USB host for field configuration and firmware updates. Use Value: Integrated CAN + SCI + USB eliminates external protocol bridge ICs, reducing BOM count and PCB area by ~35%. |
| Medical Diagnostic Interface | Factory Floor HMI Controller |
Use Scenario: Signal conditioning and real-time display of ECG waveforms in portable patient monitors with local storage and USB export. IC Role / Device Role / Timing Role: Simultaneous 12-bit ADC sampling (21 ch), hardware CRC for data integrity, and USB device-mode transfer to PC. Use Value: On-chip 32 KB data flash enables background logging without external EEPROM, meeting IEC62304 data retention requirements. |
Use Scenario: Touch-enabled operator panel with real-time PLC status visualization, alarm handling, and local recipe storage. IC Role / Device Role / Timing Role: Graphics rendering via parallel interface (PDC), touch controller interfacing via I²C, and secure firmware update via AES-encrypted USB DFU. Use Value: Hardware AES decryption accelerates authenticated firmware loading, cutting update time by >60% vs. software-only implementation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F5631EDGFB#V0 | Same RX631 Group, identical 144-pin LQFP package, but with 768 KB flash and 128 KB SRAM | Higher memory capacity supports larger protocol stacks (e.g., full TCP/IP + TLS) and extended GUI assets | Select when firmware size exceeds 512 KB or additional RAM is needed for real-time buffering |
| R5F5630BDGFB#V0 | Same package and pinout, but RX630 Group: no FPU, no DEU, reduced peripheral count (e.g., only 1 CAN, 8 SCI) | Lacks hardware AES and floating-point-unsuitable for encrypted comms or advanced motion control | Choose for cost-sensitive, non-safety-critical applications where cryptographic or math acceleration is unnecessary |
Compared with R5F5631BDGFB#V0, R5F5631EDGFB#V0 offers scalable memory for complex connectivity stacks, while R5F5630BDGFB#V0 reduces cost and power at the expense of security and computational capability-making the original part optimal for balanced performance, safety, and feature integration.
Availability
R5F5631BDGFB#V0 is available at Aetrix Electronics and suitable for industrial motor control, building automation gateways, medical diagnostic interfaces, and factory floor HMI controllers requiring stable component supply across long production lifecycles.
Supply support for R5F5631BDGFB#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 is designed for high-integrity industrial applications demanding real-time determinism, functional safety (IEC60730), and integrated connectivity-without Ethernet overhead, optimizing cost and power for edge-node control.
FAQ
What is the maximum operating frequency and core architecture of the R5F5631BDGFB#V0?
The R5F5631BDGFB#V0 operates at a maximum frequency of 100 MHz using the 32-bit RXv1 CPU core with CISC Harvard architecture, 5-stage pipeline, and variable-length instructions. It delivers 165 DMIPS performance and includes hardware support for IEEE-754 single-precision floating-point operations, making it suitable for computationally intensive real-time control tasks.
Does the R5F5631BDGFB#V0 include an Ethernet MAC controller?
No, the R5F5631BDGFB#V0 belongs to the RX631 Group, which explicitly excludes the Ethernet MAC controller. That feature is reserved for the RX63N Group. The R5F5631BDGFB#V0 instead emphasizes USB 2.0 host/function/OTG, CAN, SCI, and I²C interfaces-optimized for cost-sensitive, non-Ethernet industrial nodes.
What memory resources are integrated into the R5F5631BDGFB#V0?
The R5F5631BDGFB#V0 integrates 512 KB of on-chip flash memory (zero-wait-state at 100 MHz), 64 KB of SRAM, and 32 KB of reprogrammable data flash rated for 100,000 erase/write cycles. This configuration supports robust firmware storage, real-time data buffering, and non-volatile parameter logging without external memory components.
Which safety standards does the R5F5631BDGFB#V0 support for functional safety certification?
The R5F5631BDGFB#V0 includes hardware features aligned with IEC60730 Class B requirements, including oscillation-stop detection, hardware CRC calculator, independent watchdog timer (IWDT), and self-diagnostic capability for the 10-bit A/D converter. These enable certified implementations in household appliances, industrial controls, and medical auxiliary devices.
What package type and pin count does the R5F5631BDGFB#V0 use?
The R5F5631BDGFB#V0 uses the PLQP0144KA-A package: a 144-pin LQFP measuring 20 × 20 mm with 0.5 mm pitch. This package provides 111 general-purpose I/O pins (including 18 with 5-V tolerance), full peripheral signal routing, and compatibility with standard surface-mount assembly processes.
R5F5631BDGFB#V0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 144-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:
- 111
- 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:
R5F5631BDGFB#V0 FAQ
1.How can I place an order for R5F5631BDGFB#V0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F5631BDGFB#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 R5F5631BDGFB#V0 reliable?
The price and inventory of R5F5631BDGFB#V0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F5631BDGFB#V0 is usually 5 days.
3.What payment methods are accepted for R5F5631BDGFB#V0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F5631BDGFB#V0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F5631BDGFB#V0?
R5F5631BDGFB#V0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F5631BDGFB#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 R5F5631BDGFB#V0?
For technical support, including R5F5631BDGFB#V0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F5631BDGFB#V0 requirements.
6.How does Aetrix verify that R5F5631BDGFB#V0 is sourced from the original manufacturer or authorized distributors?
All R5F5631BDGFB#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 R5F5631BDGFB#V0 meets industry standards.
7.What is the process for return or replacement of R5F5631BDGFB#V0?
All R5F5631BDGFB#V0 units undergo pre-shipment inspection (PSI). If there is an issue with R5F5631BDGFB#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 R5F5631BDGFB#V0 part is unused and in its original packaging.
Return procedure for R5F5631BDGFB#V0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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