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Renesas R5F5631FDDFB#V0
- Part No.:
- R5F5631FDDFB#V0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 144-LQFP
- Datasheet:
-
R5F5631FDDFB#V0.pdf
- Description:
- IC MCU 32BIT 2MB FLASH 144LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,778
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Product details
Overview
R5F5631FDDFB#V0 from Renesas is a 100 MHz 32-bit RX CPU-based microcontroller in the RX631 Group, featuring 2 MB on-chip flash memory, 256 KB SRAM, 32 KB data flash, IEEE-754 single-precision FPU, and integrated 10-/12-bit A/D converters - designed for industrial control systems requiring deterministic real-time response and USB host/function connectivity.
For engineers reviewing the R5F5631FDDFB#V0 datasheet, R5F5631FDDFB#V0 pinout, R5F5631FDDFB#V0 application, or R5F5631FDDFB#V0 equivalent, this page delivers verified specifications, package mapping to PLQP0144KA-A (144-pin LQFP), confirmed peripheral set excluding Ethernet MAC, and two validated alternative MCUs for migration or sourcing flexibility.
Technical Context
The R5F5631FDDFB#V0 implements the RXv1 CPU core with CISC Harvard architecture, 5-stage pipeline, and variable-length instructions enabling ultra-compact code density. It supports little-endian or big-endian data arrangement and includes MPU for memory protection.
Its clock system integrates PLL, 125-kHz LOCO, and 50-MHz HOCO oscillators with independent frequency division for ICLK (up to 100 MHz), PCLK (up to 50 MHz), FCLK (up to 50 MHz), and BCLK (up to 50 MHz), enabling precise domain-specific timing control across CPU, peripherals, flash, and external bus interfaces.
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 real-time deterministic execution |
| Flash Memory | 2 Mbytes on-chip main flash, zero-wait-state access at 100 MHz |
| SRAM | 256 Kbytes on-chip SRAM, zero-wait-state access for instruction/operand storage |
| A/D Converter | 21-channel 12-bit S12AD + 8-channel 10-bit AD, 1.0 μs conversion time @ 50 MHz PCLK |
| USB Interface | Full-speed USB 2.0 host/function module with OTG support and 2 KB transfer buffer |
| Operating Voltage | 2.7 V to 3.6 V supply range, supporting industrial-grade power rail stability |
| Temperature Range | -40°C to +85°C (D version), qualified for extended industrial environments |
Pinout & Package
Package: PLQP0144KA-A - 144-pin LQFP, 20 × 20 mm, 0.5-mm pitch, RoHS-compliant, surface-mountable with standard reflow profile.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC / VSS | Power supply / Ground | Dedicated analog/digital power pins with decoupling requirements per datasheet layout guidelines |
| XTAL / EXTAL | Main crystal oscillator input/output | Supports 4–16 MHz external crystal for high-accuracy system clock generation |
| RESET | Active-low reset input | Accepts asynchronous reset assertion; internal POR and LVD provide robust power-on initialization |
| USB_DP / USB_DM | USB 2.0 differential data pair | Direct full-speed USB physical layer interface, no external transceiver required |
| PA0–PA15, PB0–PB15, etc. | General-purpose I/O ports | 111 GPIOs total (144-pin package), with 5-V tolerant inputs, open-drain capability, and pull-up resistors |
| AD000–AD020 | Analog input channels | 21 dedicated 12-bit ADC input pins mapped to internal S12AD unit |
Key Features
| Feature | Design Value |
|---|---|
| Floating-point unit (FPU) | IEEE-754 single-precision hardware accelerator enabling real-time math-intensive algorithms without software emulation overhead |
| Data encryption unit (DEU) | AES-128/192/256 ECB/CBC mode acceleration for secure firmware updates and data confidentiality in connected devices |
| Real-time clock (RTC) | Calendar/clock function with battery backup support and alarm/periodic interrupt generation for time-critical scheduling |
| Programmable pulse generator (PPG) | 32-channel pulse output capability triggered by MTU2/TPU events, ideal for motor phase control and LED dimming waveforms |
| CRC calculator | Hardware CRC engine supporting X8+X2+X+1, X16+X15+X2+1, and X16+X12+X5+1 polynomials for protocol integrity verification |
| Independent watchdog timer (IWDT) | 14-bit counter driven by dedicated 125-kHz on-chip oscillator, ensuring fail-safe recovery even during main clock failure |
Applications
| Industrial PLC I/O Module | Smart Energy Metering Gateway |
|---|---|
|
Use Scenario: Standalone I/O expansion node in distributed control systems, acquiring analog sensor signals and driving relay outputs via isolated interfaces. IC Role / Device Role / Timing Role: Central MCU managing 21-channel 12-bit analog acquisition, 8-bit D/A output, and deterministic 100 MHz real-time task scheduling. Use Value: On-chip 256 KB SRAM enables local buffering of sensor data; integrated USB host allows field technician configuration via portable device. |
Use Scenario: Two-way communication hub aggregating meter readings over RS485/LIN and forwarding via USB or CAN to concentrator units. IC Role / Device Role / Timing Role: Protocol translation engine with SCI (13 channels), CAN (2 channels), and USB 2.0 host/function, synchronized by RTC calendar timestamps. Use Value: Hardware CRC and AES-DEU ensure secure firmware OTA updates; 100 MHz CPU handles concurrent protocol stacks without latency penalty. |
| Medical Diagnostic Sensor Controller | Factory Automation HMI Panel |
|
Use Scenario: Front-end signal conditioning and digitization for portable ultrasound or ECG modules, requiring low-noise analog capture and safety-certified operation. IC Role / Device Role / Timing Role: A/D converter controller with sample-and-hold, temperature sensor integration, and IEC60730 self-diagnostic functions (CRC, IWDT, A/D self-test). Use Value: ±1°C on-die temperature sensor enables thermal drift compensation; 1.0 μs A/D conversion supports high-sample-rate biosignal acquisition. |
Use Scenario: Local operator interface with touch panel, LED indicators, and button inputs in CNC machine control cabinets. IC Role / Device Role / Timing Role: Human-machine interaction processor running GUI logic, scanning 111 GPIOs, generating PWM for backlight dimming, and logging events to data flash. Use Value: 32 KB reprogrammable data flash (100,000 erase cycles) stores calibration data and usage logs; PPG timers drive smooth 16-phase LED fade effects. |
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 Group variant with identical 144-pin LQFP package, 2 MB flash, 256 KB SRAM, but adds Ethernet MAC and EDMAC | Suitable where 10/100 Mbps wired connectivity is required; not drop-in due to additional Ethernet PHY interface pins and routing | Select only if Ethernet is mandatory; requires PCB revision and driver stack changes |
| R5F562TADDFB#V0 | RX62T Group MCU, 100 MHz, 512 KB flash, 64 KB SRAM, no FPU, no DEU, same 144-pin LQFP footprint | Lower-cost option for non-floating-point, non-secure applications; lacks USB OTG and advanced timer features (MTU2, PPG) | Choose when budget constraints outweigh need for FPU, crypto, or USB host functionality |
Compared with R5F5631FDDFB#V0, R5F563NEDDFB#V0 adds Ethernet at higher BOM cost and layout complexity, while R5F562TADDFB#V0 reduces feature set and memory to lower unit price - making R5F5631FDDFB#V0 optimal for USB-connected industrial controllers needing FPU and AES without Ethernet overhead.
Availability
R5F5631FDDFB#V0 is available at Aetrix Electronics and suitable for industrial PLC I/O modules, smart energy gateways, medical sensor controllers, and factory HMI panels requiring stable component supply, long-term lifecycle assurance, and automotive-grade reliability validation.
Supply support for R5F5631FDDFB#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 IoT markets.
The RX631 Group targets cost-optimized industrial control applications where USB connectivity, deterministic real-time performance, and functional safety compliance (IEC60730) are critical - without requiring Ethernet PHY integration.
FAQ
What is the maximum operating frequency and CPU architecture of the R5F5631FDDFB#V0?
The R5F5631FDDFB#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 a single-precision IEEE-754 floating-point unit. This architecture enables deterministic real-time execution essential for industrial control loops and sensor processing in the R5F5631FDDFB#V0.
Does the R5F5631FDDFB#V0 include an Ethernet controller?
No, the R5F5631FDDFB#V0 belongs to the RX631 Group, which explicitly excludes the Ethernet MAC and EDMAC modules present in the RX63N Group. This distinction is confirmed in Renesas documentation (R01DS0098EJ0180, Table 1.2). The R5F5631FDDFB#V0 retains full USB 2.0 host/function/OTG, CAN, multiple SCI, and I2C interfaces - making it suitable for USB-connected or CAN-based industrial nodes where Ethernet is unnecessary.
What memory resources are integrated into the R5F5631FDDFB#V0?
The R5F5631FDDFB#V0 integrates 2 Mbytes of on-chip flash memory (zero-wait-state at 100 MHz), 256 Kbytes of SRAM (zero-wait-state), and 32 Kbytes of reprogrammable data flash rated for 100,000 erase/write cycles. These resources support complex firmware, real-time data buffering, and non-volatile parameter storage - all verified in the official RX63N/RX631 Group datasheet (R01DS0098EJ0180). The R5F5631FDDFB#V0 uses these memory blocks for secure boot, field-upgradable code, and runtime logging.
Which package type does the R5F5631FDDFB#V0 use, and what are its mechanical dimensions?
The R5F5631FDDFB#V0 uses the PLQP0144KA-A package: a 144-pin LQFP with 20 × 20 mm body size and 0.5-mm lead pitch. This RoHS-compliant, surface-mount package supports standard reflow soldering and provides 111 general-purpose I/O pins, 18 of which are 5-V tolerant. The package mapping is explicitly listed in Renesas' product table (R01DS0098EJ0180, Page 10), confirming mechanical and thermal compatibility for industrial PCB designs using the R5F5631FDDFB#V0.
What peripheral interfaces are supported by the R5F5631FDDFB#V0 for industrial communication?
The R5F5631FDDFB#V0 supports USB 2.0 full-speed host/function/OTG (with 2 KB buffer), up to 13 SCI channels (including LIN and smart-card modes), 4 I2C interfaces (one FM+), 3 CAN channels (ISO 11898-1 compliant), 3 RSPI channels, and IEBus - all confirmed in the RX63N/RX631 Group datasheet (R01DS0098EJ0180, Tables 1.1–1.2). These interfaces enable flexible connectivity in industrial gateways and controllers without requiring external bridge ICs, directly supporting the R5F5631FDDFB#V0's role in protocol-agile edge devices.
R5F5631FDDFB#V0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 144-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:
- 111
- Program Memory Size:
- 2MB (2M 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:
R5F5631FDDFB#V0 FAQ
1.How can I place an order for R5F5631FDDFB#V0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F5631FDDFB#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 R5F5631FDDFB#V0 reliable?
The price and inventory of R5F5631FDDFB#V0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F5631FDDFB#V0 is usually 5 days.
3.What payment methods are accepted for R5F5631FDDFB#V0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F5631FDDFB#V0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F5631FDDFB#V0?
R5F5631FDDFB#V0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F5631FDDFB#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 R5F5631FDDFB#V0?
For technical support, including R5F5631FDDFB#V0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F5631FDDFB#V0 requirements.
6.How does Aetrix verify that R5F5631FDDFB#V0 is sourced from the original manufacturer or authorized distributors?
All R5F5631FDDFB#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 R5F5631FDDFB#V0 meets industry standards.
7.What is the process for return or replacement of R5F5631FDDFB#V0?
All R5F5631FDDFB#V0 units undergo pre-shipment inspection (PSI). If there is an issue with R5F5631FDDFB#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 R5F5631FDDFB#V0 part is unused and in its original packaging.
Return procedure for R5F5631FDDFB#V0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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