Renesas R5F5631DCDLJ#U0
- Part No.:
- R5F5631DCDLJ#U0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 100-TFLGA
- Datasheet:
-
R5F5631DCDLJ#U0.pdf
- Description:
- IC MCU 32BIT 1.5MB FLSH 100TFLGA
- Quantity:
- Payment:

- Shipping:

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Product details
Overview
R5F5631DCDLJ#U0 from Renesas is a 100 MHz 32-bit RX CPU core microcontroller in the RX631 Group, featuring 1.5 Mbytes of on-chip flash memory, 128 Kbytes of SRAM, 32 Kbytes of data flash, and integrated 12-bit/10-bit A/D converters, 10-bit D/A converters, RTC, and CAN interface - designed for industrial control and embedded networking applications without Ethernet.
For engineers reviewing the R5F5631DCDLJ#U0 datasheet, R5F5631DCDLJ#U0 pinout, R5F5631DCDLJ#U0 application, or R5F5631DCDLJ#U0 equivalent, key selection criteria include its 100 MHz operation, 1.5 Mbyte flash capacity, 128 Kbyte SRAM, CAN (3 channels), and 144-pin TFLGA package with -40 to +85°C temperature range.
Technical Context
The R5F5631DCDLJ#U0 implements the RXv1 CPU core with CISC Harvard architecture, 5-stage pipeline, and IEEE-754 single-precision FPU - delivering 165 DMIPS at 100 MHz. It supports little-endian data arrangement and includes a memory protection unit (MPU) for secure execution.
It integrates dual A/D converters (21-channel 12-bit + 8-channel 10-bit), two 10-bit D/A channels, three CAN modules (ISO 11898-1 compliant, 32 mailboxes each), and up to 13 SCI interfaces with flexible serial modes including UART, SPI, I²C, and LIN - all operating under a unified 2.7–3.6 V supply.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | RXv1 32-bit CPU with 5-stage pipeline and IEEE-754 FPU |
| Max Clock Frequency | 100 MHz - enables deterministic real-time control with 165 DMIPS performance |
| Flash Memory | 1.5 Mbytes - sufficient for complex firmware with bootloader, safety libraries, and field-upgradable code |
| SRAM | 128 Kbytes - supports large buffers for communication stacks and real-time data processing |
| A/D Converter | 21 × 12-bit + 8 × 10-bit channels - enables simultaneous high-resolution sensor acquisition across multiple analog inputs |
| CAN Interface | 3 channels, ISO 11898-1 compliant, 32 mailboxes each - supports multi-node automotive or industrial bus architectures |
| Package | PTLG0100JA-A: 100-pin TFLGA, 7 × 7 mm, 0.65 mm pitch - compact footprint for space-constrained PCBs |
| Operating Temperature | -40 to +85°C (D version) - qualified for industrial environments without extended thermal derating |
Pinout & Package
Package: PTLG0100JA-A - 100-pin Thin Fine-Pitch Land Grid Array (TFLGA), 7 mm × 7 mm, 0.65 mm pitch, 0.8 mm height, lead-free and RoHS-compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC / VSS | Power supply / Ground | Dedicated power/ground pairs per quadrant minimize noise coupling and support stable 100 MHz operation |
| XTAL / EXTAL | Main crystal oscillator input/output | Supports 4–16 MHz external crystals for precise system clock generation and PLL reference |
| RESET | Active-low reset input | Accepts asynchronous de-bounced signal; triggers POR, LVD, and software-initiated reset sequences |
| MD0 / MD1 | Mode selection pins | Configure boot source (on-chip ROM vs. external bus) and debug interface (JTAG/FINE) |
| IRQ0–IRQ15 | External interrupt inputs | 16 dedicated edge-sensitive pins with configurable priority levels for fast event response |
| TXD0 / RXD0 | SCI0 serial transmit/receive | Asynchronous UART interface with programmable baud rate generator for host communication or debugging |
Key Features
| Feature | Design Value |
|---|---|
| Floating-point unit (FPU) | IEEE-754 single-precision hardware acceleration - eliminates software emulation overhead for motor control or sensor fusion math |
| Memory Protection Unit (MPU) | Configurable region-based access control - enforces task isolation and prevents unauthorized memory access in RTOS environments |
| Data Flash (32 KB) | 100,000 write/erase cycles with background operation - enables reliable non-volatile parameter storage without halting application execution |
| Real-time Clock (RTC) | Calendar + alarm + time-capture functions with battery backup support - maintains accurate timekeeping during deep sleep or main power loss |
| IEC 60730 compliance support | Integrated oscillation-stop detection, CRC calculator, IWDT, and A/D self-diagnostic - reduces certification effort for Class B safety applications |
| Low-power modes | Four modes (Sleep, All-module clock stop, Software standby, Deep software standby) - extends battery life in portable or energy-harvesting systems |
Applications
| Industrial PLC I/O Module | Building Automation Controller |
|---|---|
|
Use Scenario: Central controller managing analog/digital I/O expansion, CAN bus communication with remote nodes, and local HMI interaction. IC Role / Device Role / Timing Role: Main application processor executing ladder logic, handling CAN frame routing, and driving real-time A/D sampling at ≤1 µs per channel. Use Value: 128 Kbytes SRAM buffers sensor data streams; 1.5 Mbyte flash stores firmware plus field-upgradable configuration; CAN mailboxes enable deterministic message prioritization. |
Use Scenario: HVAC zone controller collecting temperature/humidity via analog sensors, communicating over BACnet MS/TP (via SCI), and regulating actuators via PWM outputs. IC Role / Device Role / Timing Role: Real-time sensor hub with synchronized 12-bit A/D conversion, RTC-based scheduling, and programmable pulse generators for valve control. Use Value: Integrated 21-channel 12-bit A/D eliminates external ADC; RTC with battery backup maintains schedule integrity during power interruption; 10-bit D/A drives analog setpoint outputs. |
| Medical Diagnostic Instrument | Energy Metering Gateway |
|
Use Scenario: Portable diagnostic device acquiring biopotential signals (ECG/EMG), performing onboard filtering, and transmitting results via USB or SCI to PC. IC Role / Device Role / Timing Role: Signal acquisition engine with sample-and-hold A/D, floating-point math for digital filtering, and USB function controller for host connectivity. Use Value: Hardware FPU accelerates FIR/IIR filter computation; 32 Kbyte data flash stores calibration coefficients; USB 2.0 full-speed interface enables plug-and-play data export. |
Use Scenario: Smart meter concentrator aggregating consumption data from sub-meters via RS-485 (SCI), storing logs in data flash, and reporting via cellular modem (SCI/USB). IC Role / Device Role / Timing Role: Protocol gateway with dual SCI ports (one for RS-485, one for modem), CRC calculator for DLMS/COSEM packet integrity, and RTC for time-stamped logging. Use Value: Built-in CRC engine validates communication packets; 100,000-cycle data flash ensures 10+ years of daily log retention; CAN interface supports optional grid-side communication. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F563NDCDLJ#U0 | RX63N Group variant with identical pinout, 1.5 Mbyte flash, 128 Kbyte SRAM, but adds Ethernet MAC and RMII/MII interface | Suitable where wired network connectivity (10/100 Mbps) is required - e.g., industrial gateways or IoT edge nodes with LAN backhaul | Select only if Ethernet PHY integration is needed; otherwise R5F5631DCDLJ#U0 offers lower cost and reduced layout complexity |
| R5F5630BDDFP#V0 | RX630 Group part in 100-pin LQFP, 1 Mbyte flash, 128 Kbyte SRAM, no CAN, no USB, no FPU - lower peripheral count and cost | Targeted at cost-sensitive, low-complexity control tasks without communication stacks or floating-point math | Choose when CAN, USB, or FPU are unnecessary; verify pin compatibility - LQFP differs from TFLGA in thermal and mechanical behavior |
Compared with R5F563NDCDLJ#U0, the R5F5631DCDLJ#U0 omits Ethernet hardware to reduce BOM cost and simplify EMI design, while retaining full CAN, USB, and FPU capability. Against R5F5630BDDFP#V0, it delivers higher flash density, CAN support, and hardware floating-point - critical for real-time control algorithms.
Availability
R5F5631DCDLJ#U0 is available at Aetrix Electronics and suitable for industrial automation, building management systems, and medical instrumentation requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant packaging.
Supply support for R5F5631DCDLJ#U0 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 enterprise applications.
The RX631 Group is engineered for high-performance, safety-aware embedded control - emphasizing real-time determinism, functional safety (IEC 60730), and rich peripheral integration without Ethernet overhead.
FAQ
What is the maximum operating frequency and core type of the R5F5631DCDLJ#U0?
The R5F5631DCDLJ#U0 operates at a maximum frequency of 100 MHz and uses the 32-bit RXv1 CPU core with a 5-stage pipeline, IEEE-754 single-precision FPU, and memory protection unit. This architecture delivers 165 DMIPS performance and supports deterministic real-time execution critical for industrial control applications. The R5F5631DCDLJ#U0 achieves this speed with zero-wait-state access to both flash and SRAM.
Does the R5F5631DCDLJ#U0 include Ethernet capability?
No, the R5F5631DCDLJ#U0 belongs to the RX631 Group, which explicitly excludes the Ethernet MAC and associated EDMAC controller present in the RX63N Group. This omission reduces silicon area, power consumption, and PCB complexity for applications where wired network connectivity is not required. If Ethernet is needed, the pin-compatible R5F563NDCDLJ#U0 is the direct alternative within the same package.
What are the flash and RAM capacities of the R5F5631DCDLJ#U0?
The R5F5631DCDLJ#U0 integrates 1.5 Mbytes of on-chip flash memory and 128 Kbytes of SRAM, both accessible at full 100 MHz speed with zero wait states. The flash supports in-application programming and secure read-out protection, while the SRAM includes backup capability during deep software standby mode. These capacities are confirmed in Renesas document R01DS0098EJ0180, Table 1.3.
Which communication interfaces are supported by the R5F5631DCDLJ#U0?
The R5F5631DCDLJ#U0 supports CAN (3 channels, ISO 11898-1), USB 2.0 full-speed host/function/OTG (dual-port), up to 13 SCI channels (with UART, SPI, I²C, LIN modes), 4 I²C interfaces (including FM+), 3 RSPI channels, and 1 IEBus channel. It does not include Ethernet or external bus interface - features reserved for the RX63N Group and larger packages respectively.
What is the package type and pin count of the R5F5631DCDLJ#U0?
The R5F5631DCDLJ#U0 uses the PTLG0100JA-A package: a 100-pin Thin Fine-Pitch Land Grid Array measuring 7 mm × 7 mm with 0.65 mm pitch. This TFLGA package provides superior thermal performance and board-level reliability compared to LQFP alternatives, and is rated for industrial temperature range (-40 to +85°C). Pin definitions and ball map are specified in Renesas Application Note R01AN1303.
R5F5631DCDLJ#U0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 100-TFLGA
- 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:
- 78
- Program Memory Size:
- 1.5MB (1.5M x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 32K x 8
- RAM Size:
- 128K x 8
- Voltage - Supply (Vcc/Vdd):
- 2.7V ~ 3.6V
- Data Converters:
- A/D 8x10b, 14x12b; D/A 1x10b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F5631DCDLJ#U0 FAQ
1.How can I place an order for R5F5631DCDLJ#U0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F5631DCDLJ#U0 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 R5F5631DCDLJ#U0 reliable?
The price and inventory of R5F5631DCDLJ#U0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F5631DCDLJ#U0 is usually 5 days.
3.What payment methods are accepted for R5F5631DCDLJ#U0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F5631DCDLJ#U0 transactions.
Note: Certain payment methods may incur a processing fee.
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R5F5631DCDLJ#U0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F5631DCDLJ#U0 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 R5F5631DCDLJ#U0?
For technical support, including R5F5631DCDLJ#U0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F5631DCDLJ#U0 requirements.
6.How does Aetrix verify that R5F5631DCDLJ#U0 is sourced from the original manufacturer or authorized distributors?
All R5F5631DCDLJ#U0 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 R5F5631DCDLJ#U0 meets industry standards.
7.What is the process for return or replacement of R5F5631DCDLJ#U0?
All R5F5631DCDLJ#U0 units undergo pre-shipment inspection (PSI). If there is an issue with R5F5631DCDLJ#U0, 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 R5F5631DCDLJ#U0 part is unused and in its original packaging.
Return procedure for R5F5631DCDLJ#U0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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