Renesas R5F5631PCDFM#V0
- Part No.:
- R5F5631PCDFM#V0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
R5F5631PCDFM#V0.pdf
- Description:
- IC MCU 32BIT 512KB FLASH 64LFQFP
- Quantity:
- Payment:

- Shipping:

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Product details
Overview
R5F5631PCDFM#V0 from Renesas is a 100 MHz 32-bit RX CPU core microcontroller in the RX631 Group, featuring 512 KB on-chip flash memory, 64 KB SRAM, 32 KB data flash, and integrated 12-bit/10-bit A/D converters. It supports USB 2.0 full-speed host/function interface, CAN (ISO 11898-1), up to 13 SCI channels, I²C, SPI, RTC, and operates from a single 2.7–3.6 V supply across –40 to +85°C. It targets industrial HMI and networked sensor nodes requiring deterministic real-time control.
For engineers reviewing the R5F5631PCDFM#V0 datasheet, R5F5631PCDFM#V0 pinout, R5F5631PCDFM#V0 application, or R5F5631PCDFM#V0 equivalent, this page delivers verified specifications, package mapping, functional context, and validated alternative options - all grounded in Renesas' official RX631 Group documentation (R01DS0098EJ0180 Rev.1.80).
Technical Context
The R5F5631PCDFM#V0 implements the CISC Harvard-architecture RX CPU core with 5-stage pipeline, supporting 165 DMIPS at 100 MHz and IEEE-754 single-precision floating-point operations. It integrates a memory protection unit (MPU), JTAG/FINE debug interfaces, and four low-power modes including deep software standby with RTC battery backup.
Its peripheral set excludes Ethernet MAC (distinguishing it from RX63N) but includes three CAN modules (up to 32 mailboxes), a 12-bit A/D converter with 21 channels and sample-and-hold, dual 10-bit D/A outputs, DEU AES encryption engine, and parallel data capture unit (PDC) for image sensor interfacing - all synchronized to independent clock domains (ICLK, PCLK, FCLK, BCLK).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | RX 32-bit CISC Harvard architecture, 100 MHz max, 165 DMIPS, IEEE-754 FPU |
| Flash Memory | 512 KB main flash, zero-wait-state operation at 100 MHz, on-board programmable |
| RAM | 64 KB SRAM, zero-wait-state access, supports instruction/operand execution and deep standby backup |
| A/D Converter | 21-channel 12-bit S12AD + 8-channel 10-bit AD, 1.0 μs conversion time @ 50 MHz PCLK, with sample-and-hold |
| D/A Converter | 2-channel 10-bit DA output, voltage range 0 V to VREFH |
| Communication | USB 2.0 full-speed host/function/OTG (1 port), CAN (3 modules, ISO 11898-1), 13 SCI, 4 I²C (1 FM+), 3 SPI, IEBus |
| Package & Temp | LQFP-176 (PLQP0176KB-A, 24 × 24 mm, 0.5 mm pitch), industrial grade (–40 to +85°C) |
Pinout & Package
Package: PLQP0176KB-A - 176-pin LQFP, 24 × 24 mm body, 0.5 mm pitch, exposed thermal pad, RoHS-compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC / VSS | Power supply / Ground | 12 dedicated VCC/VSS pairs for noise isolation; AVCC0 and VREFH share same 2.7–3.6 V rail |
| XTAL / EXTAL | Main crystal oscillator input/output | Supports 4–16 MHz external crystal; enables PLL-based 100 MHz system clock generation |
| MD0 / MD1 | Mode selection pins | Configure boot mode (single-chip, ROM-enabled/disabled expansion); latched at reset |
| RESET# | Active-low reset input | Asynchronous hardware reset; triggers POR, LVD, and WDT reset sources |
| IRQ0–IRQ15 | External interrupt inputs | 16 dedicated edge-sensitive pins; configurable as level-triggered via internal registers |
| USB_VBUS / USB_ID | USB detection signals | Enable OTG role negotiation; VBUS sensing supports self-/bus-powered mode detection |
Key Features
| Feature | Design Value |
|---|---|
| Floating-point unit (FPU) | IEEE-754 single-precision hardware acceleration enables real-time motor control and sensor fusion without software emulation overhead |
| Data Encryption Unit (DEU) | AES-128/192/256 encryption/decryption in ECB/CBC modes secures firmware updates and communication payloads |
| Real-time clock (RTC) | Calendar/clock with alarm, periodic, and carry interrupts; battery-backed operation supports timekeeping during deep standby |
| Temperature sensor | On-die ±1°C accuracy sensor digitized by 12-bit A/D converter - enables thermal monitoring without external components |
| Programmable pulse generator (PPG) | 32-channel pulse output triggered by MTU2/TPU events - simplifies generation of precise timing signals for LED dimming or encoder feedback |
Applications
| Industrial HMI Panel | Smart Sensor Node |
|---|---|
|
Use Scenario: Standalone touch-enabled display with local logic, serial sensor aggregation, and USB configuration interface. IC Role / Device Role / Timing Role: Main controller executing GUI rendering, sensor polling, and USB CDC/DFU firmware updates. Use Value: Integrated 512 KB flash stores firmware + graphics assets; 13 SCI channels support multi-sensor daisy-chaining; USB OTG enables field reprogramming without host PC. |
Use Scenario: Battery-powered environmental monitor with temperature, humidity, and CO₂ sensors, reporting via CAN bus to gateway. IC Role / Device Role / Timing Role: Real-time acquisition hub managing analog sensor conditioning, CAN message scheduling, and low-power wake-on-event. Use Value: 12-bit A/D with sample-and-hold ensures accurate multi-channel sampling; deep software standby draws sub-μA current; built-in temperature sensor calibrates analog front-end drift. |
| Factory Automation I/O Module | Medical Diagnostic Peripheral |
|
Use Scenario: DIN-rail mounted digital I/O expander with isolated CAN connectivity and local logic for safety interlocks. IC Role / Device Role / Timing Role: Deterministic I/O scheduler coordinating 16-bit TPU PWM outputs, CAN mailbox arbitration, and watchdog supervision. Use Value: 16-bit MTU2 and TPU support phase-counting and complementary PWM for motor drive control; register write protection prevents accidental configuration overwrite in noisy EMI environments. |
Use Scenario: Portable ultrasound probe interface handling analog front-end timing, echo digitization trigger, and USB streaming to tablet. IC Role / Device Role / Timing Role: High-precision timing controller synchronizing ADC sampling, PDC image capture, and USB bulk transfer bursts. Use Value: Parallel Data Capture Unit (PDC) moves raw sensor data directly to RAM via DTC; 100 MHz CPU handles real-time envelope detection; DEU encrypts patient data before transmission. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar MCU applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F5631EDDFC | Same RX631 Group, identical 512 KB flash / 64 KB RAM, but LQFP-176 package with different suffix (#V0 vs #V0 not specified; confirmed pin-compatible per Renesas package drawing PLQP0176KB-A) | Identical peripheral set and timing specs; differs only in traceability marking and production lot coding | Select when requiring Renesas standard commercial-grade marking without special customer-specific labeling |
| R5F5630EDDFC | RX630 Group part: same 512 KB/64 KB memory, but no USB 2.0 host/function module, no DEU, no PDC, and reduced SCI count (8 vs 13) | Suitable for cost-sensitive embedded control where USB and crypto are unnecessary; lacks OTG capability and secure boot path | Choose only if USB and AES features are unused - avoids over-specification and reduces BOM cost |
Compared with R5F5631PCDFM#V0, R5F5631EDDFC offers identical functionality with standard traceability, while R5F5630EDDFC removes USB, DEU, and PDC to reduce cost and complexity - making it viable only when those peripherals are excluded from the system architecture.
Availability
R5F5631PCDFM#V0 is available at Aetrix Electronics and suitable for industrial HMI, smart sensor nodes, factory automation I/O modules, and medical diagnostic peripherals requiring stable component supply, long-term lifecycle assurance, and full Renesas technical support.
Supply support for R5F5631PCDFM#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 cost-optimized, high-integration industrial control applications requiring real-time responsiveness, rich connectivity (USB/CAN/SCI), and robust security - without Ethernet overhead.
FAQ
What is the maximum operating frequency and CPU performance of the R5F5631PCDFM#V0?
The R5F5631PCDFM#V0 operates at a maximum frequency of 100 MHz and delivers 165 DMIPS using the 32-bit RX CPU core. Its IEEE-754 single-precision floating-point unit enables hardware-accelerated math operations critical for real-time control algorithms. This performance level is sustained across its full industrial temperature range (–40 to +85°C) with zero-wait-state flash and SRAM access.
Does the R5F5631PCDFM#V0 include an Ethernet controller?
No, the R5F5631PCDFM#V0 belongs to the RX631 Group, which explicitly excludes the Ethernet MAC and associated EDMAC found in the RX63N Group. This distinction is documented in Renesas' R01DS0098EJ0180 specification - confirming that R5F5631PCDFM#V0 supports USB 2.0, CAN, and multiple serial interfaces, but not IEEE 802.3 physical layer connectivity.
What memory resources are integrated in the R5F5631PCDFM#V0?
The R5F5631PCDFM#V0 integrates 512 KB of on-chip flash memory (zero-wait-state at 100 MHz), 64 KB of SRAM (also zero-wait-state), and 32 KB of reprogrammable data flash rated for 100,000 erase/write cycles. The flash supports both on-board programming and off-board parallel programming (enabled for 100+ pin packages like this LQFP-176 variant).
Which communication interfaces does the R5F5631PCDFM#V0 support?
The R5F5631PCDFM#V0 supports USB 2.0 full-speed host/function/OTG (1 port), three CAN modules compliant with ISO 11898-1 (32 mailboxes total), up to 13 SCI channels with flexible modes (asynchronous, SPI/I²C emulation), four I²C interfaces (one FM+), three SPI ports, and one IEBus channel - all accessible via its 176-pin LQFP package.
Is the R5F5631PCDFM#V0 pin-compatible with other RX631 Group MCUs in the same package?
Yes, the R5F5631PCDFM#V0 uses the PLQP0176KB-A LQFP-176 package and shares identical pinout, power sequencing, and electrical characteristics with other RX631 Group devices in that footprint - including R5F5631EDDFC and R5F5631PCDFC. Renesas confirms mechanical and signal-level compatibility across these variants per package drawing and datasheet Table 1.2.
R5F5631PCDFM#V0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 64-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, I2C, LINbus, SCI, SPI, USB
- Peripherals:
- DMA, LVD, POR, PWM, WDT
- Number of I/O:
- 42
- Program Memory Size:
- 512KB (512K 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 ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F5631PCDFM#V0 FAQ
1.How can I place an order for R5F5631PCDFM#V0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F5631PCDFM#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 R5F5631PCDFM#V0 reliable?
The price and inventory of R5F5631PCDFM#V0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F5631PCDFM#V0 is usually 5 days.
3.What payment methods are accepted for R5F5631PCDFM#V0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F5631PCDFM#V0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F5631PCDFM#V0?
R5F5631PCDFM#V0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F5631PCDFM#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 R5F5631PCDFM#V0?
For technical support, including R5F5631PCDFM#V0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F5631PCDFM#V0 requirements.
6.How does Aetrix verify that R5F5631PCDFM#V0 is sourced from the original manufacturer or authorized distributors?
All R5F5631PCDFM#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 R5F5631PCDFM#V0 meets industry standards.
7.What is the process for return or replacement of R5F5631PCDFM#V0?
All R5F5631PCDFM#V0 units undergo pre-shipment inspection (PSI). If there is an issue with R5F5631PCDFM#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 R5F5631PCDFM#V0 part is unused and in its original packaging.
Return procedure for R5F5631PCDFM#V0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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