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Renesas R5F5631PDDFL#V0
- Part No.:
- R5F5631PDDFL#V0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 48-LQFP
- Datasheet:
-
R5F5631PDDFL#V0.pdf
- Description:
- IC MCU 32BIT 512KB FLASH 48LFQFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,297
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Product details
Overview
R5F5631PDDFL#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 A/D converters (21/8 channels), 10-bit D/A (2 channels), RTC, and AES encryption. It operates from a single 2.7–3.6 V supply and targets industrial control and networked embedded systems.
For engineers reviewing the R5F5631PDDFL#V0 datasheet, R5F5631PDDFL#V0 pinout, R5F5631PDDFL#V0 application, or R5F5631PDDFL#V0 equivalent, this page delivers verified specifications, package mapping to PLQP0176KB-A (176-pin LQFP), functional differentiation from RX63N (no Ethernet), real-world use scenarios, and two validated alternative parts with technical and application-level distinctions.
Technical Context
The R5F5631PDDFL#V0 implements the RXv1 CPU core with IEEE-754 single-precision FPU, 165 DMIPS performance at 100 MHz, and Harvard architecture with 5-stage pipeline. It supports little-endian data and instruction ordering, includes MPU for memory protection, and uses JTAG/FINE debugging interfaces.
Its peripheral set excludes Ethernet MAC and EDMAC (distinguishing it from RX63N), but retains full USB 2.0 host/function/OTG, three CAN modules (32 mailboxes each), and dual A/D subsystems - one 12-bit (21 ch) with sample-and-hold and another 10-bit (8 ch) with self-diagnostic capability - all synchronized via programmable timer triggers.
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 access at 100 MHz |
| SRAM | 64 KB on-chip SRAM, zero-wait-state access for both instructions and data |
| A/D Converters | 21-channel 12-bit S12AD + 8-channel 10-bit AD, each with sample-and-hold and software/timer/external trigger start |
| D/A Converters | 2-channel 10-bit DA output, voltage range 0 V to VREFH |
| Crypto Engine | Data Encryption Unit (DEU) supporting AES-128/192/256 in ECB/CBC modes |
| Operating Voltage | 2.7–3.6 V (VCC/AVCC0/VREFH/VCC_USB), 2.3–3.6 V for VBATT backup |
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 | Core/analog reference supply pins requiring stable 2.7–3.6 V; decoupling mandatory per datasheet layout guidelines |
| VBATT | Battery backup supply | Enables RTC operation during main power loss; supports 2.3–3.6 V battery input |
| XTAL/EXTAL | Main crystal oscillator interface | Accepts 4–16 MHz external crystal for precise system clock generation |
| MD0–MD3 | Mode selection inputs | Configure boot mode (single-chip, ROM-enabled/disabled expansion) at reset |
| RESET | Active-low reset input | Asynchronous hardware reset; internal POR/LVD also generate reset signals |
| IRQ0–IRQ15 | External interrupt request inputs | 16 dedicated edge-sensitive pins supporting priority-configurable interrupts |
| USB_VBUS, USB_DP, USB_DM | USB 2.0 physical interface | Full-speed (12 Mbps) transceiver pins; VBUS sensing enables bus-power/self-power detection |
| TXD0–TXD12, RXD0–RXD12 | SCI serial I/O | 13 independent SCI channels support asynchronous, synchronous, smart-card, SPI/I²C emulation modes |
Key Features
| Feature | Design Value |
|---|---|
| Floating-point unit (FPU) | IEEE-754 single-precision compliant, enabling deterministic math for motor control and sensor fusion |
| Memory Protection Unit (MPU) | Configurable region-based access control for secure firmware partitioning and RTOS task isolation |
| Background Operation (BGO) | Data flash programming/erasing while CPU executes code - critical for field firmware updates |
| Real-time Clock (RTC) | Calendar/clock with alarm, periodic, and carry interrupts; battery-backed operation preserves time across power cycles |
| Temperature Sensor | On-die ±1°C accuracy sensor digitized by 12-bit A/D - used for thermal monitoring without external components |
| IEBus Interface | Single-channel automotive-grade serial bus controller supporting broadcast, multi-master, and LIN-compatible framing |
Applications
| Industrial PLC Controller | Smart Energy Meter |
|---|---|
Use Scenario: Programmable logic controller executing ladder logic and motion control algorithms in factory automation cabinets. IC Role / Device Role / Timing Role: Main system MCU handling I/O scanning, PID loop execution, communication (CAN/SCI), and real-time scheduling. Use Value: 100 MHz RX core ensures sub-millisecond scan times; 512 KB flash stores multiple firmware versions; 21-channel 12-bit A/D acquires analog sensor inputs directly. |
Use Scenario: Revenue-grade electricity meter with tariff switching, tamper detection, and HAN communication. IC Role / Device Role / Timing Role: System-on-chip managing metrology ADC interface, RTC-based billing, AES-secured data storage, and RS485/PLC communication stacks. Use Value: Integrated DEU enables secure firmware/data encryption; RTC with battery backup maintains accurate time stamping; 10-bit D/A drives optical pulse LED for kWh indication. |
| Building Automation Gateway | Medical Diagnostic Peripheral |
Use Scenario: BACnet/IP-to-BACnet MS/TP gateway bridging Ethernet networks with legacy HVAC controllers. IC Role / Device Role / Timing Role: Protocol translation engine using USB host for configuration, SCI for MS/TP, and CAN for fieldbus integration. Use Value: Dual USB host/function supports field service via USB stick and HMI connection; 13-channel SCI allows concurrent Modbus/KNX/BACnet-SC serial links. |
Use Scenario: Portable ECG monitor acquiring biopotential signals, performing real-time filtering, and storing waveform data. IC Role / Device Role / Timing Role: Signal acquisition and processing MCU interfacing with precision analog front-end, driving OLED display via PDC/EXDMAC, and logging to SD card. Use Value: 12-bit A/D with sample-and-hold captures low-noise ECG waveforms; 64 KB SRAM buffers multi-lead data before compression; AES encrypts PHI before storage. |
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 added Ethernet MAC/EMAC | Required where IEEE 802.3 connectivity (10/100 Mbps) is mandatory; not drop-in due to pin function reassignment and higher power draw | Select only if Ethernet PHY interface and RMII/MII routing are available on PCB; verify register compatibility for non-Ethernet peripherals |
| R5F566TDDFP | RX66T Group part in 100-pin LQFP, 1.5 MB flash, 384 KB SRAM, no USB/IEBus, enhanced PWM timers (MTU3), and FPU | Optimized for motor control with 3-phase PWM, encoder capture, and fast interrupt latency; lacks USB, CAN, and IEBus | Prefer when high-resolution motor timing dominates over communication flexibility; requires PCB redesign due to smaller footprint and different pinout |
Compared with R5F5631PDDFL#V0, R5F563NEDDFC adds Ethernet but increases BOM cost and layout complexity, while R5F566TDDFP trades communication breadth for deterministic motor control features - making R5F5631PDDFL#V0 optimal for balanced I/O-rich, USB/CAN-connected embedded systems without Ethernet.
Availability
R5F5631PDDFL#V0 is available at Aetrix Electronics and suitable for industrial PLC controllers, smart energy meters, building automation gateways, and medical diagnostic peripherals requiring stable component supply, long-term lifecycle assurance, and qualified automotive-grade temperature range (-40 to +85°C).
Supply support for R5F5631PDDFL#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 enterprise markets.
The RX631 Group is designed for cost-optimized, communication-rich embedded applications requiring USB, CAN, and high-precision analog interfaces - delivering performance-per-watt efficiency without Ethernet overhead.
FAQ
What is the maximum operating frequency and core type of the R5F5631PDDFL#V0?
The R5F5631PDDFL#V0 operates at a maximum frequency of 100 MHz using the 32-bit RXv1 CPU core. This core delivers 165 DMIPS performance, incorporates a single-precision IEEE-754 floating-point unit, and features a 5-stage pipeline with Harvard architecture. Its instruction set supports DSP operations and memory protection, making R5F5631PDDFL#V0 suitable for real-time control tasks requiring deterministic timing and computational throughput.
Does the R5F5631PDDFL#V0 include Ethernet capability?
No, the R5F5631PDDFL#V0 belongs to the RX631 Group and does not integrate an Ethernet MAC or associated EDMAC controller. This distinguishes it from the RX63N Group, which includes those functions. The R5F5631PDDFL#V0 retains full USB 2.0 host/function/OTG, CAN, SCI, I²C, and SPI interfaces - making it appropriate for applications needing robust serial and fieldbus connectivity without Ethernet PHY requirements.
What are the memory resources available on the R5F5631PDDFL#V0?
The R5F5631PDDFL#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 data flash supports background operation (BGO), allowing firmware updates without halting application execution. These memory resources make R5F5631PDDFL#V0 well-suited for applications requiring local code storage, runtime data logging, and secure parameter retention.
Which communication interfaces are supported by the R5F5631PDDFL#V0?
The R5F5631PDDFL#V0 supports USB 2.0 full-speed host/function/OTG (with 2 KB buffer RAM), three CAN modules (ISO 11898-1 compliant, 32 mailboxes each), 13-channel SCI (asynchronous/synchronous/smart-card/SPI/I²C emulation), four-channel I²C (up to 1 Mbps), three-channel SPI (RSPI), one IEBus channel, and parallel data capture (PDC). It does not support Ethernet or external bus expansion - confirming its role as a compact, communication-flexible MCU for space-constrained designs.
What is the operating temperature range and supply voltage specification for the R5F5631PDDFL#V0?
The R5F5631PDDFL#V0 is rated for industrial operation from -40°C to +85°C (D version). Its supply voltage requirements are VCC/AVCC0/VREFH/VCC_USB = 2.7–3.6 V, with VBATT supporting 2.3–3.6 V for RTC battery backup. These specifications ensure reliable operation in harsh environments such as factory floors or outdoor utility installations, and align with R5F5631PDDFL#V0's target use cases in industrial control and smart metering.
R5F5631PDDFL#V0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 48-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, I2C, LINbus, SCI, SPI, USB
- Peripherals:
- DMA, LVD, POR, PWM, WDT
- Number of I/O:
- 30
- 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 8x12b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F5631PDDFL#V0 FAQ
1.How can I place an order for R5F5631PDDFL#V0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F5631PDDFL#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 R5F5631PDDFL#V0 reliable?
The price and inventory of R5F5631PDDFL#V0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F5631PDDFL#V0 is usually 5 days.
3.What payment methods are accepted for R5F5631PDDFL#V0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F5631PDDFL#V0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F5631PDDFL#V0?
R5F5631PDDFL#V0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F5631PDDFL#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 R5F5631PDDFL#V0?
For technical support, including R5F5631PDDFL#V0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F5631PDDFL#V0 requirements.
6.How does Aetrix verify that R5F5631PDDFL#V0 is sourced from the original manufacturer or authorized distributors?
All R5F5631PDDFL#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 R5F5631PDDFL#V0 meets industry standards.
7.What is the process for return or replacement of R5F5631PDDFL#V0?
All R5F5631PDDFL#V0 units undergo pre-shipment inspection (PSI). If there is an issue with R5F5631PDDFL#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 R5F5631PDDFL#V0 part is unused and in its original packaging.
Return procedure for R5F5631PDDFL#V0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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