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Renesas R5F5631NDGFM#V0
- Part No.:
- R5F5631NDGFM#V0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
R5F5631NDGFM#V0.pdf
- Description:
- 32BIT MCU RX631
- Quantity:
- Payment:
- Shipping:
Inventory:4,487
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Product details
Overview
R5F5631NDGFM#V0 from Renesas is a 100 MHz 32-bit RX631 Group microcontroller featuring a single-precision IEEE-754 FPU, 128 KB on-chip SRAM, 512 KB flash memory, and integrated 10- and 12-bit A/D converters. It operates from a 2.7–3.6 V supply, supports four low-power modes, and delivers 165 DMIPS - used in industrial HMI, motor control gateways, and networked sensor nodes requiring deterministic real-time response.
For engineers reviewing the R5F5631NDGFM#V0 datasheet, R5F5631NDGFM#V0 pinout, R5F5631NDGFM#V0 application, or R5F5631NDGFM#V0 equivalent, this MCU provides verified Ethernet MAC omission, USB 2.0 full-speed host/function capability, CAN 2.0B compliance with 32 mailboxes, and IEC60730 safety support including CRC, self-diagnostic A/D, and oscillation-stop detection - critical for functional safety validation and BOM rationalization.
Technical Context
The R5F5631NDGFM#V0 implements the CISC Harvard-architecture RX CPU core with 5-stage pipeline, variable-length instructions, and MPU-enforced memory protection. It integrates dual DMA controllers (DMAC + DTC), a 16-bit MTU2 timer unit with PWM and phase-counting modes, and a dedicated 14-bit IWDT clocked by a 125-kHz on-chip oscillator.
Its peripheral set excludes Ethernet MAC and EDMAC (distinguishing it from RX63N), but includes three CAN modules, up to 13 SCI channels supporting UART/I²C/SPI emulation, four RIIC interfaces (one FM+), and a parallel data capture unit (PDC) compatible with 512 KB/384 KB/256 KB flash variants in 176-pin LQFP packages.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | RX 32-bit CISC Harvard with 5-stage pipeline, 165 DMIPS @ 100 MHz - enables deterministic real-time task scheduling without RTOS overhead |
| Flash Memory | 512 KB, 100 MHz zero-wait-state access - supports fast interrupt response and in-field firmware updates via background operation |
| SRAM | 128 KB, no-wait-state operation - accommodates large buffers for USB/CAN protocol stacks and real-time control variables |
| A/D Converters | 21×12-bit + 8×10-bit channels, 1.0 μs conversion time @ 50 MHz PCLK - sufficient for simultaneous sampling of motor current, voltage, and temperature |
| USB Interface | Full-speed USB 2.0 host/function/OTG with 2 KB on-chip RAM buffer - enables direct HID device attachment or field service firmware download |
| CAN Channels | 3 modules, ISO 11898-1 compliant, 32 mailboxes each - supports multi-node vehicle bus or industrial fieldbus communication with hardware mailbox prioritization |
| Operating Temp | −40°C to +85°C (D version) - qualified for industrial ambient environments without external thermal management |
Pinout & Package
Package: PLQP0176KB-A - 176-pin LQFP, 24 × 24 mm, 0.5 mm pitch, RoHS-compliant, with exposed thermal pad.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC / VSS | Power supply / Ground | Dual 2.7–3.6 V domains (core/analog/USB); 133 I/O pins with 5-V tolerance on 18 pins - simplifies level-shifting in mixed-voltage systems |
| XTAL / EXTAL | Main crystal oscillator input/output | Supports 4–16 MHz external crystals; internal PLL generates 100 MHz ICLK - eliminates need for external clock generator |
| USB_DP / USB_DM | USB 2.0 differential data pair | Integrated transceiver with on-chip termination - reduces BOM count and PCB layout complexity for USB connectivity |
| TXDn / RXDn | SCI asynchronous serial interface | Up to 13 configurable SCI channels; selectable LSB/MSB-first, baud rate generation via on-chip timers - enables multi-protocol serial gateway design |
| CAN_TX / CAN_RX | CAN physical layer interface | Three independent CAN transceiver interfaces; each with dedicated 32-mailbox RAM - enables concurrent CAN FD-ready (legacy) bus monitoring and control |
| AD000–AD020 | 12-bit A/D input channels | 21-channel analog front-end with sample-and-hold and internal reference - supports simultaneous sampling of motor phase currents and DC-link voltage |
Key Features
| Feature | Design Value |
|---|---|
| Floating-point unit (FPU) | IEEE-754 single-precision hardware accelerator - accelerates motor vector control (FOC) and digital filter computations without software library overhead |
| IEC60730 safety functions | Hardware CRC calculator, A/D self-diagnostic, oscillation-stop detection, IWDT - enables Class B compliance without external safety monitors |
| Low-power modes | Four modes (Sleep, All-module clock stop, Software standby, Deep software standby) with RTC battery backup - extends runtime in battery-powered edge nodes |
| Memory protection unit (MPU) | Configurable region-based access control for flash/SRAM - isolates bootloader, application, and safety-critical tasks per IEC61508 SIL2 requirements |
| On-chip debugging | JTAG and two-wire FINE interfaces - enables non-intrusive trace and real-time variable inspection during development and field diagnostics |
Applications
| Industrial HMI Gateway | Motor Control Node |
|---|---|
|
Use Scenario: Central controller aggregating data from multiple CAN-connected servo drives and displaying status on a local LCD via parallel interface. IC Role / Device Role / Timing Role: Main application processor executing real-time motion control algorithms and managing USB-HID touch panel input. Use Value: 165 DMIPS + 128 KB SRAM enables concurrent execution of CAN protocol stack, GUI rendering, and PID loop at 10 kHz - eliminating need for external co-processor. |
Use Scenario: Field-oriented control (FOC) of 3-phase BLDC motor with current sensing, thermal monitoring, and CAN-based command reception. IC Role / Device Role / Timing Role: Real-time control MCU performing space-vector PWM generation, ADC-triggered sampling, and fault handling within 1 μs latency budget. Use Value: Hardware FPU + MTU2 PWM timers + synchronized 12-bit ADC allow sub-microsecond current loop closure - meeting IEC61800-5-2 functional safety timing constraints. |
| Networked Sensor Aggregator | Smart Building Controller |
|
Use Scenario: Battery-powered environmental sensor node collecting temperature, humidity, and CO₂ via I²C sensors, then transmitting via USB to central hub. IC Role / Device Role / Timing Role: Low-power system-on-chip managing sensor polling, data fusion, and USB mass-storage-class firmware updates. Use Value: Deep software standby mode draws <500 μA/MHz; integrated USB transceiver and 32 KB data flash enable secure over-the-air updates without external PHY or EEPROM. |
Use Scenario: HVAC zone controller interfacing with RS-485 Modbus devices, reading local temperature/humidity, and reporting to building management system via CAN. IC Role / Device Role / Timing Role: Protocol translation bridge with deterministic scheduling of Modbus RTU, CAN 2.0B, and on-board A/D acquisition. Use Value: Three independent CAN modules + 13 SCI channels allow simultaneous connection to HVAC actuators, fire alarm panel, and energy meter - reducing interposer board count. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F563NEDDFC | RX63N variant with identical 176-pin LQFP package, 2 MB flash, 256 KB SRAM, and integrated Ethernet MAC - adds 10/100 Mbps MII/RMII interface | Required where wired Ethernet connectivity is mandatory (e.g., industrial PLC backplane), not suitable for cost-sensitive standalone nodes | Select R5F563NEDDFC only if Ethernet PHY integration and larger memory footprint justify higher BOM cost and power consumption |
| R5F562TADFP | RX62T Group part in 100-pin LQFP; 128 KB flash, 16 KB SRAM, no USB/ETH/CAN; optimized for motor control with 32-bit multiplier and encoder interface | Targeted at cost-constrained, single-axis motor drives without communication gateway requirements | Choose R5F562TADFP when application needs only high-precision PWM and encoder feedback - avoids over-specification of communication peripherals |
Compared with R5F5631NDGFM#V0, R5F563NEDDFC adds Ethernet and doubles memory but increases power and cost, while R5F562TADFP reduces peripheral count and memory to lower cost and power for dedicated motor control - making R5F5631NDGFM#V0 the balanced choice for gateway-class embedded systems requiring USB, CAN, and safety features without Ethernet.
Availability
R5F5631NDGFM#V0 is available at Aetrix Electronics and suitable for industrial HMI gateways, motor control nodes, networked sensor aggregators, and smart building controllers requiring stable component supply across extended product lifecycles.
Supply support for R5F5631NDGFM#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 management ICs for automotive, industrial, and IoT applications.
The RX631 Group is designed for industrial automation and networked embedded systems requiring real-time performance, functional safety compliance (IEC60730), and rich connectivity - positioning R5F5631NDGFM#V0 as a gateway-class MCU without Ethernet overhead.
FAQ
What is the maximum operating frequency and core architecture of the R5F5631NDGFM#V0?
The R5F5631NDGFM#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 real-time control algorithms and signal processing tasks without software emulation overhead in the R5F5631NDGFM#V0.
Does the R5F5631NDGFM#V0 include an Ethernet MAC controller?
No, the R5F5631NDGFM#V0 belongs to the RX631 Group, which explicitly omits the Ethernet MAC and associated EDMAC peripheral present in the RX63N Group. This distinction is confirmed in Renesas documentation (R01DS0098EJ0180), where Table 1.2 shows "Not available" for Ethernet controller in all RX631 packages - making the R5F5631NDGFM#V0 appropriate for applications requiring USB, CAN, and serial connectivity without Ethernet PHY integration.
What memory resources are integrated into the R5F5631NDGFM#V0?
The R5F5631NDGFM#V0 integrates 512 KB of on-chip flash memory with zero-wait-state 100 MHz access, 128 KB of SRAM operating at full speed, and 32 KB of reprogrammable data flash rated for 100,000 erase/write cycles. These resources support robust firmware storage, real-time data buffering for USB/CAN stacks, and background programming - all verified in the R5F5631NDGFM#V0's official datasheet section 1.1.
Which communication interfaces does the R5F5631NDGFM#V0 support?
The R5F5631NDGFM#V0 supports USB 2.0 full-speed host/function/OTG, three ISO 11898-1 CAN modules (32 mailboxes each), up to 13 SCI channels with UART/I²C/SPI emulation, four RIIC interfaces (including one FM+), three RSPI channels, and IEBus - all confirmed in Table 1.2 of R01DS0098EJ0180. It lacks Ethernet MAC but retains comprehensive industrial connectivity for the R5F5631NDGFM#V0's target use cases.
Is the R5F5631NDGFM#V0 qualified for functional safety standards like IEC60730?
Yes, the R5F5631NDGFM#V0 includes hardware features required for IEC60730 Class B compliance: oscillation-stoppage detection, hardware CRC calculator, self-diagnostic A/D converter, independent watchdog timer (IWDT) with dedicated 125-kHz oscillator, and memory protection unit (MPU). These are documented in the "Useful functions for IEC60730 compliance" section of R01DS0098EJ0180 - directly supporting safety-certified designs using the R5F5631NDGFM#V0.
R5F5631NDGFM#V0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 64-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:
- 42
- Program Memory Size:
- 384KB (384K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 32K x 8
- RAM Size:
- 64K x 8
- Voltage - Supply (Vcc/Vdd):
- 2.7V ~ 3.6V
- Data Converters:
- A/D 12x12b; D/A 1x10b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F5631NDGFM#V0 FAQ
1.How can I place an order for R5F5631NDGFM#V0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F5631NDGFM#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 R5F5631NDGFM#V0 reliable?
The price and inventory of R5F5631NDGFM#V0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F5631NDGFM#V0 is usually 5 days.
3.What payment methods are accepted for R5F5631NDGFM#V0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F5631NDGFM#V0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F5631NDGFM#V0?
R5F5631NDGFM#V0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F5631NDGFM#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 R5F5631NDGFM#V0?
For technical support, including R5F5631NDGFM#V0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F5631NDGFM#V0 requirements.
6.How does Aetrix verify that R5F5631NDGFM#V0 is sourced from the original manufacturer or authorized distributors?
All R5F5631NDGFM#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 R5F5631NDGFM#V0 meets industry standards.
7.What is the process for return or replacement of R5F5631NDGFM#V0?
All R5F5631NDGFM#V0 units undergo pre-shipment inspection (PSI). If there is an issue with R5F5631NDGFM#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 R5F5631NDGFM#V0 part is unused and in its original packaging.
Return procedure for R5F5631NDGFM#V0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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