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Renesas R5F5631YDDFC#V0
- Part No.:
- R5F5631YDDFC#V0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 176-LQFP
- Datasheet:
-
R5F5631YDDFC#V0.pdf
- Description:
- IC MCU 32BIT 1MB FLASH 176LFQFP
- Quantity:
- Payment:
- Shipping:
Inventory:2,871
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Product details
Overview
R5F5631YDDFC#V0 from Renesas is a 100-MHz 32-bit RX631 Group microcontroller featuring the RX CPU core, 1 MB on-chip flash memory, 256 KB SRAM, single-precision IEEE-754 FPU, and integrated 12-bit/10-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.
For engineers reviewing the R5F5631YDDFC#V0 datasheet, R5F5631YDDFC#V0 pinout, R5F5631YDDFC#V0 application, or R5F5631YDDFC#V0 equivalent, this MCU is selected for industrial HMI, motor control with sensor feedback, and networked embedded systems requiring deterministic real-time performance, cryptographic acceleration via DEU, and IEC60730 safety compliance support.
Technical Context
The R5F5631YDDFC#V0 belongs to the RX631 Group - a subset of the RX63N/RX631 family without Ethernet MAC or SDRAM controller. It implements the CISC Harvard architecture with 5-stage pipeline, variable-length instructions, and MPU-based memory protection. Its clock system integrates PLL, HOCO (50 MHz), LOCO (125 kHz), and subclock oscillator support.
It features dual DMA controllers (DMAC + DTC), hardware CRC calculation, AES encryption/decryption (128/192/256-bit keys), and dedicated peripherals for functional safety: oscillation-stop detection, IWDT, self-diagnostic A/D, and voltage monitoring. The device excludes Ethernet and RTC battery backup - distinguishing it from RX63N variants.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | RX 32-bit CPU, 100 MHz max - delivers 165 DMIPS for deterministic real-time execution |
| Flash Memory | 1 MB on-chip main flash - zero-wait-state operation at 100 MHz, programmable in-system |
| SRAM | 256 KB on-chip SRAM - no wait states, supports instruction/operand storage and deep standby backup |
| A/D Converter | 21-channel 12-bit + 8-channel 10-bit - 1.0 μs conversion time at 50 MHz PCLK, with sample-and-hold and temperature sensor interface |
| D/A Converter | 2-channel 10-bit - output range 0 V to VREFH, suitable for analog actuator control or calibration references |
| Crypto Engine | Data Encryption Unit (DEU) - hardware AES-128/192/256 in ECB/CBC modes, offloading CPU for secure firmware updates |
| Operating Voltage | 2.7–3.6 V (VCC/AVCC0/VREFH/VCC_USB) - single-supply operation simplifies power design |
| Temperature Range | –40 to +85°C (D version) - qualified for industrial environments without derating |
Pinout & Package
Package: PLQP0176KB-A - 176-pin LQFP, 24 × 24 mm, 0.5-mm pitch, RoHS-compliant, surface-mount.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC, AVCC0, VREFH | Power supply inputs | Separate analog/digital supply domains ensure noise immunity for ADC/DAC operation |
| XTAL, EXTAL | Main crystal oscillator terminals | Support 4–16 MHz external crystals for precise system clock generation and PLL input |
| RESET | Active-low reset input | Asynchronous reset assertion clears CPU, peripherals, and internal registers to known state |
| USB_VBUS, USB_DP, USB_DM | USB 2.0 full-speed interface | Direct connection to USB connector; supports host/function/OTG with integrated transceiver |
| TXDn, RXDn (SCI) | Serial communication interface | Up to 13 configurable SCI channels - support UART, SPI-like, I²C-like, and LIN protocols |
| AD000–AD020 | Analog input channels | 21 dedicated pins for 12-bit ADC; includes internal temperature sensor channel (AD019) |
| DA00, DA01 | Digital-to-analog outputs | Two buffered 10-bit DAC outputs referenced to VREFH, usable for analog waveform generation |
Key Features
| Feature | Design Value |
|---|---|
| Floating-point unit (FPU) | Single-precision IEEE-754 compliant - enables efficient math-intensive tasks like motor vector control or sensor fusion |
| Memory Protection Unit (MPU) | Configurable region-based access control - enforces software partitioning for ASIL-B or IEC60730 Class B compliance |
| IEC60730 Safety Support | Integrated oscillation-stop detection, CRC calculator, IWDT, and A/D self-test - reduces external safety component count |
| Low-power operation | 500 μA/MHz active current + four low-power modes - extends runtime in battery-backed or energy-constrained applications |
| Programmable Pulse Generator (PPG) | 32-channel pulse output triggered by MTU2/TPU - generates precise timing signals for LED dimming or gate drivers |
| USB 2.0 Host/Function/OTG | On-chip transceiver + 2 KB buffer - eliminates external PHY, enabling field-upgradable firmware via USB mass storage |
Applications
| Industrial HMI Panel | Smart Motor Drive Controller |
|---|---|
Use Scenario: Touch-enabled operator interface with real-time status display, parameter configuration, and local data logging. IC Role / Device Role / Timing Role: Main application processor executing GUI framework, managing USB HID input, driving parallel LCD via PDC, and sampling analog sensors. Use Value: 256 KB SRAM buffers frame data; 12-bit ADC reads potentiometers and thermistors; DEU secures firmware updates over USB. |
Use Scenario: Closed-loop BLDC/PMSM drive with Hall/encoder feedback, current sensing, and PWM generation. IC Role / Device Role / Timing Role: Real-time motion controller synchronizing MTU2 PWM outputs, capturing encoder edges via TPU input capture, and executing FOC algorithm. Use Value: 100 MHz CPU + FPU computes torque/flux vectors in <10 μs; 10-bit DAC provides analog reference for current amplifier bias. |
| Networked Building Automation Node | Secure Firmware-Upgrade Gateway |
Use Scenario: Field device aggregating Modbus RTU sensor data and forwarding via CAN or USB to central controller. IC Role / Device Role / Timing Role: Protocol gateway bridging SCI-based RS-485 networks to USB host PC or CAN bus. Use Value: Dual CAN channels enable redundant bus access; 13 SCI interfaces support multi-drop legacy fieldbus integration. |
Use Scenario: Edge device receiving encrypted OTA firmware images and validating/authenticating before flash programming. IC Role / Device Role / Timing Role: Secure boot loader leveraging DEU AES decryption and CRC verification prior to flash write. Use Value: Hardware-accelerated AES-256 prevents side-channel attacks; 32 KB data flash stores keys and certificates securely. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F5631EDDFC#V0 | Same package (PLQP0176KB-A), 2 MB flash, 256 KB SRAM - higher code capacity, identical peripheral set | Better suited for complex protocol stacks (e.g., full TCP/IP + USB CDC + CANopen) requiring larger firmware footprint | Select when future firmware expansion or dual-bank OTA is required; same PCB layout and pinout |
| R5F5630YDDFC#V0 | RX630 Group variant - same 1 MB flash/256 KB SRAM but lacks FPU, DEU, and IEC60730 safety features | Targeted at cost-sensitive applications where floating-point math or cryptographic security is not needed | Choose for non-safety-critical consumer devices; lower BOM cost but requires software FPU emulation if needed |
Compared with R5F5631YDDFC#V0, R5F5631EDDFC#V0 offers scalable flash headroom without layout change, while R5F5630YDDFC#V0 reduces cost by omitting FPU and DEU - making it viable only where those features are unused.
Availability
R5F5631YDDFC#V0 is available at Aetrix Electronics and suitable for industrial HMI, smart motor drives, building automation nodes, and secure firmware-upgrade gateways requiring stable component supply, long-term lifecycle assurance, and traceable sourcing.
Supply support for R5F5631YDDFC#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-performance, safety-aware industrial embedded applications - balancing real-time determinism, cryptographic capability, and functional safety features without Ethernet overhead.
FAQ
What is the maximum operating frequency and core type of the R5F5631YDDFC#V0?
The R5F5631YDDFC#V0 operates at a maximum frequency of 100 MHz using the 32-bit RX CPU core. This core delivers 165 DMIPS performance and includes a single-precision IEEE-754 floating-point unit, 5-stage pipeline, and memory protection unit - all confirmed in the official Renesas datasheet R01DS0098EJ0180. The R5F5631YDDFC#V0 achieves deterministic real-time response critical for motor control and industrial automation.
Does the R5F5631YDDFC#V0 include an Ethernet MAC interface?
No, the R5F5631YDDFC#V0 does not include an Ethernet MAC. It belongs to the RX631 Group, which explicitly excludes Ethernet functionality - unlike the RX63N Group. Table 1.2 in the R01DS0098EJ0180 datasheet confirms Ethernet controller and EDMAC are "Not available" for all RX631 packages, including the PLQP0176KB-A used by R5F5631YDDFC#V0.
What are the flash and RAM capacities of the R5F5631YDDFC#V0?
The R5F5631YDDFC#V0 integrates 1 MB of on-chip flash memory and 256 KB of SRAM. Both operate at zero wait states up to 100 MHz, as specified in Table 1.1 of the R01DS0098EJ0180 datasheet. The flash supports in-system programming, and the SRAM includes backup capability during deep software standby - key for maintaining context in low-power industrial nodes.
Which communication interfaces are supported by the R5F5631YDDFC#V0?
The R5F5631YDDFC#V0 supports USB 2.0 full-speed host/function/OTG (1 port), CAN (2 channels, ISO11898-1 compliant), up to 13 SCI interfaces (with UART, SPI-like, I²C-like, and LIN modes), 4 I²C bus interfaces (including FM+), 3 RSPI channels, and 1 IEBus channel. These are fully documented in Section 1.1 and Table 1.2 of R01DS0098EJ0180, with no Ethernet or SDRAM controller included.
Is the R5F5631YDDFC#V0 suitable for IEC60730 Class B compliance?
Yes, the R5F5631YDDFC#V0 includes multiple hardware features supporting IEC60730 Class B compliance: oscillation-stoppage detection, hardware CRC calculator, independent watchdog timer (IWDT), self-diagnostic function for the 10-bit A/D converter, and voltage-monitoring circuitry. These capabilities are explicitly listed in the "Useful functions for IEC60730 compliance" section of the R01DS0098EJ0180 datasheet for the RX63N/RX631 Group.
R5F5631YDDFC#V0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 176-LQFP
- Series:
- RX600
- Packaging:
- Tray
- Product Status:
- Not For New Designs
- 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:
- 133
- Program Memory Size:
- 1MB (1M x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 32K x 8
- RAM Size:
- 256K 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:
R5F5631YDDFC#V0 FAQ
1.How can I place an order for R5F5631YDDFC#V0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F5631YDDFC#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 R5F5631YDDFC#V0 reliable?
The price and inventory of R5F5631YDDFC#V0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F5631YDDFC#V0 is usually 5 days.
3.What payment methods are accepted for R5F5631YDDFC#V0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F5631YDDFC#V0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F5631YDDFC#V0?
R5F5631YDDFC#V0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F5631YDDFC#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 R5F5631YDDFC#V0?
For technical support, including R5F5631YDDFC#V0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F5631YDDFC#V0 requirements.
6.How does Aetrix verify that R5F5631YDDFC#V0 is sourced from the original manufacturer or authorized distributors?
All R5F5631YDDFC#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 R5F5631YDDFC#V0 meets industry standards.
7.What is the process for return or replacement of R5F5631YDDFC#V0?
All R5F5631YDDFC#V0 units undergo pre-shipment inspection (PSI). If there is an issue with R5F5631YDDFC#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 R5F5631YDDFC#V0 part is unused and in its original packaging.
Return procedure for R5F5631YDDFC#V0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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