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Renesas R5F5631BDDLC#U0
- Part No.:
- R5F5631BDDLC#U0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 177-TFLGA
- Datasheet:
-
R5F5631BDDLC#U0.pdf
- Description:
- IC MCU 32BIT 1MB FLASH 177TFLGA
- Quantity:
- Payment:
- Shipping:
Inventory:3,618
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Product details
Overview
R5F5631BDDLC#U0 from Renesas is a 100 MHz 32-bit RX CPU core microcontroller in the RX631 Group, featuring 1 MB on-chip flash memory, 128 KB SRAM, and no Ethernet controller. It integrates a single-precision IEEE-754 FPU, 12-bit and 10-bit A/D converters (21 and 8 channels), dual 10-bit D/A outputs, RTC with battery backup, and supports IEC60730 safety compliance functions. It targets industrial HMI and motor control applications requiring deterministic real-time response and functional safety.
For engineers reviewing the R5F5631BDDLC#U0 datasheet, R5F5631BDDLC#U0 pinout, R5F5631BDDLC#U0 application, or R5F5631BDDLC#U0 equivalent, key selection criteria include its RX631 Group identity (no Ethernet), LQFP-176 package, -40°C to +85°C operating range, 1 MB/128 KB memory configuration, and support for USB host/function, CAN, multiple SCI, and hardware encryption via DEU.
Technical Context
The R5F5631BDDLC#U0 implements the CISC Harvard-architecture RX CPU core with 5-stage pipeline, variable-length instructions, and MPU support. It executes at 165 DMIPS @ 100 MHz and includes dedicated multiply-and-accumulate units, 32-bit multiplier (1-cycle), and divider (2-cycle).
Its peripheral set excludes Ethernet MAC (distinguishing it from RX63N) but retains full-speed USB 2.0 host/function/OTG, three CAN channels (ISO11898-1), up to 13 SCI interfaces, four I²C buses (1 Mbps), three RSPI, and hardware AES-128/192/256 encryption in the DEU module.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | RX 32-bit CISC Harvard with 5-stage pipeline, 165 DMIPS @ 100 MHz |
| Max Operating Frequency | 100 MHz - enables deterministic real-time execution with sub-10 ns instruction timing |
| Flash Memory | 1 MB - sufficient for complex firmware with bootloader, safety libraries, and field-upgradeable code |
| SRAM | 128 KB - supports large data buffers, RTOS stacks, and real-time control algorithms |
| A/D Converters | 21 × 12-bit + 8 × 10-bit - enables simultaneous high-resolution sensing of motor currents, voltages, and temperature |
| D/A Converters | 2 × 10-bit - provides analog feedback signals for closed-loop control or calibration references |
| Operating Temperature | -40°C to +85°C - qualified for industrial ambient environments without derating |
| Package | LQFP-176 (PLQP0176KB-A, 24 × 24 mm, 0.5 mm pitch) - compatible with standard SMT assembly and thermal management |
Pinout & Package
Package: PLQP0176KB-A - 176-pin LQFP, 24 mm × 24 mm body, 0.5 mm pitch, exposed thermal pad, RoHS-compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC / VSS | Power supply / Ground | 16 pairs distributed across package for low-noise digital power delivery and EMI suppression |
| XTAL / EXTAL | Main crystal oscillator input/output | Supports 4–16 MHz external crystals for precise system clock generation and jitter-sensitive peripherals |
| RESET | Active-low reset input | Accepts asynchronous de-bounced signal; initiates POR, register initialization, and vector fetch from reset vector |
| USB_VBUS / USB_DP / USB_DM | USB 2.0 full-speed interface | Enables host/device/OTG operation with integrated transceiver and 2 KB on-chip buffer |
| TXD0 / RXD0 | SCI0 asynchronous serial interface | Configurable baud rate generator supports RS-232/RS-485 level-shifting and protocol bridging |
| AD000–AD020 | Analog input channels | 21 dedicated pins for 12-bit A/D conversion with internal sample-and-hold and programmable trigger sources |
| DA00 / DA01 | Digital-to-analog outputs | Two buffered 10-bit voltage outputs referenced to VREFH (2.7–3.6 V), usable for calibration or analog feedback |
| MTIOC0A–MTIOC5B | MTU2 timer waveform outputs | 12-channel complementary PWM output with dead-time insertion and phase-counting capability for motor drive control |
Key Features
| Feature | Design Value |
|---|---|
| Floating-point unit (FPU) | IEEE-754 single-precision hardware acceleration enables efficient trigonometric, exponential, and filtering computations in real-time control loops |
| IEC60730 safety support | Integrated oscillation-stop detection, CRC calculator, IWDT, and A/D self-diagnostic reduce certification effort for Class B safety-critical applications |
| Data Encryption Unit (DEU) | AES-128/192/256 ECB/CBC mode accelerates secure boot, firmware authentication, and encrypted communication without CPU overhead |
| Multi-channel timer subsystem | MTU2 (6-channel), TPU (12-channel), TMR (4-channel), and CMT (4-channel) provide synchronized PWM, capture, and timing for multi-axis motor control |
| Flexible communication suite | Three CAN channels (32 mailboxes each), 13 SCI interfaces (including LIN-capable SCId), and four I²C buses enable robust industrial network integration |
| Low-power operation | Four low-power modes (Sleep, All-module clock stop, Software standby, Deep software standby) with RTC and RAM retention down to 500 μA/MHz |
Applications
| Industrial Motor Drive | Building Automation Controller |
|---|---|
Use Scenario: Closed-loop control of 3-phase PMSM/BLDC motors with current/voltage sensing, thermal monitoring, and field-oriented control (FOC). IC Role / Device Role / Timing Role: Main system MCU executing FOC algorithm, managing PWM generation via MTU2/TPU, sampling ADCs at 1 μs resolution, and communicating over CAN bus. Use Value: Integrated 12-bit ADCs with sample-and-hold, dual 10-bit DACs for reference generation, and hardware FPU reduce latency and offload computation from software. | Use Scenario: Central HVAC controller interfacing with temperature/humidity sensors, valve actuators, fan speed drives, and BACnet/IP gateway via Ethernet (external PHY). IC Role / Device Role / Timing Role: Real-time scheduler and protocol stack processor handling Modbus RTU over RS-485 (SCI), CAN-based device networks, and USB diagnostics. Use Value: 13 SCI interfaces allow concurrent legacy protocol support; 1 MB flash stores multiple protocol stacks and firmware updates; DEU secures remote firmware upgrades. |
| Programmable Logic Controller (PLC) I/O Module | Medical Infusion Pump Controller |
Use Scenario: Digital I/O expansion module with isolated inputs/outputs, analog sensor conditioning, and EtherCAT slave interface (via external PHY + SPI). IC Role / Device Role / Timing Role: Deterministic peripheral manager coordinating GPIO, ADC, DAC, and SPI-based external PHY, with precise interrupt latency for cycle-synchronized I/O. Use Value: 134 GPIO pins (5-V tolerant), 128 KB SRAM for cyclic process image buffering, and hardware CRC ensure data integrity in noisy industrial environments. | Use Scenario: Safety-critical infusion pump with flow rate control, occlusion detection, battery-backed runtime logging, and USB host for configuration dongle. IC Role / Device Role / Timing Role: Certified safety MCU performing motor control, pressure sensing (12-bit ADC), real-time clock logging, and USB mass storage enumeration. Use Value: IEC60730-compliant features (IWDT, oscillation detection, A/D self-test) simplify Class II medical certification; RTC with battery backup maintains audit trail during power loss. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 32-bit industrial MCU applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F5631BDDFC | Same RX631 Group, identical 1 MB flash / 128 KB SRAM, but in PLQP0176KB-A package without #U0 suffix - differs only in programming option (blank vs pre-programmed) | No functional difference; intended for customers requiring factory-programmed firmware | Select R5F5631BDDFC if firmware is pre-loaded at manufacturing; otherwise R5F5631BDDLC#U0 offers flexibility for field programming |
| R5F5630BDDLC#U0 | RX630 Group part: same 100 MHz CPU, 1 MB flash, 128 KB SRAM, but lacks USB 2.0 host/function module and DEU encryption engine | Suitable for cost-sensitive applications where USB connectivity and cryptographic security are not required | Choose R5F5630BDDLC#U0 when eliminating USB and AES reduces BOM cost and simplifies certification, without sacrificing core control performance |
Compared with R5F5631BDDLC#U0, R5F5631BDDFC offers identical functionality with factory programming convenience, while R5F5630BDDLC#U0 removes USB and DEU to lower cost-making the R5F5631BDDLC#U0 optimal for applications needing secure, USB-enabled industrial control with full peripheral integration.
Availability
R5F5631BDDLC#U0 is available at Aetrix Electronics and suitable for industrial motor drives, building automation controllers, PLC I/O modules, and medical infusion pumps requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for R5F5631BDDLC#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 Corporation is a global semiconductor leader delivering microcontrollers, analog, power, and SoC solutions for automotive, industrial, and IoT markets.
The RX631 Group is designed for high-performance, safety-certifiable industrial control applications-emphasizing real-time determinism, functional safety (IEC60730), and rich analog/motor-control peripherals without Ethernet overhead.
FAQ
What is the maximum operating frequency and CPU performance of the R5F5631BDDLC#U0?
The R5F5631BDDLC#U0 operates at a maximum frequency of 100 MHz and delivers 165 DMIPS of processing performance using the 32-bit RX CPU core. Its hardware FPU, 32-bit multiplier (1-cycle), and dual MAC units enable efficient execution of real-time control algorithms. This performance level is confirmed in the R01DS0098EJ0180 datasheet for the RX631 Group, and applies directly to the R5F5631BDDLC#U0 variant.
Does the R5F5631BDDLC#U0 include an Ethernet MAC controller?
No, the R5F5631BDDLC#U0 does not include an Ethernet MAC controller. It belongs to the RX631 Group, which explicitly excludes Ethernet functionality-unlike the RX63N Group. This distinction is clearly documented in Table 1.2 of the R01DS0098EJ0180 datasheet. The R5F5631BDDLC#U0 instead supports full-speed USB 2.0 host/function/OTG, CAN, and multiple SCI interfaces for industrial networking.
What memory resources are integrated in the R5F5631BDDLC#U0?
The R5F5631BDDLC#U0 integrates 1 MB of on-chip flash memory (with zero wait states at 100 MHz), 128 KB of SRAM (also zero wait states), and 32 KB of reprogrammable data flash (rated for 100,000 erase/write cycles). These values are specified in Table 1.3 of the R01DS0098EJ0180 datasheet under the RX631 Group product listing for part number R5F5631BDDLC#U0 in the PLQP0176KB-A package.
Which communication interfaces are supported by the R5F5631BDDLC#U0?
The R5F5631BDDLC#U0 supports USB 2.0 full-speed host/function/OTG (1 port each), three CAN 2.0B channels (32 mailboxes each), up to 13 SCI interfaces (including LIN-capable SCId), four I²C buses (1 Mbps max), three RSPI channels, and one IEBus channel. These interfaces are confirmed in Table 1.2 of the R01DS0098EJ0180 datasheet for the RX631 Group in the 176-pin LQFP configuration.
Is the R5F5631BDDLC#U0 qualified for industrial temperature range operation?
Yes, the R5F5631BDDLC#U0 is rated for industrial operation from -40°C to +85°C (D version), as specified in Table 1.3 of the R01DS0098EJ0180 datasheet. It uses the PLQP0176KB-A LQFP package and meets Renesas' industrial-grade qualification standards, including thermal cycling, humidity testing, and long-term reliability validation per JEDEC JESD22.
R5F5631BDDLC#U0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 177-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:
- 133
- Program Memory Size:
- 1MB (1M 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, 21x12b; D/A 2x10b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F5631BDDLC#U0 FAQ
1.How can I place an order for R5F5631BDDLC#U0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F5631BDDLC#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 R5F5631BDDLC#U0 reliable?
The price and inventory of R5F5631BDDLC#U0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F5631BDDLC#U0 is usually 5 days.
3.What payment methods are accepted for R5F5631BDDLC#U0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F5631BDDLC#U0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F5631BDDLC#U0?
R5F5631BDDLC#U0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F5631BDDLC#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 R5F5631BDDLC#U0?
For technical support, including R5F5631BDDLC#U0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F5631BDDLC#U0 requirements.
6.How does Aetrix verify that R5F5631BDDLC#U0 is sourced from the original manufacturer or authorized distributors?
All R5F5631BDDLC#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 R5F5631BDDLC#U0 meets industry standards.
7.What is the process for return or replacement of R5F5631BDDLC#U0?
All R5F5631BDDLC#U0 units undergo pre-shipment inspection (PSI). If there is an issue with R5F5631BDDLC#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 R5F5631BDDLC#U0 part is unused and in its original packaging.
Return procedure for R5F5631BDDLC#U0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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