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Renesas R5F5631DCDBG#U0
- Part No.:
- R5F5631DCDBG#U0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 176-LFBGA
- Datasheet:
-
R5F5631DCDBG#U0.pdf
- Description:
- IC MCU 32BIT 1.5MB FLSH 176LFBGA
- Quantity:
- Payment:
- Shipping:
Inventory:3,296
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Product details
Overview
R5F5631DCDBG#U0 from Renesas is a 100 MHz 32-bit RX CPU-based microcontroller in the RX631 Group, featuring 1.5 Mbytes of on-chip flash memory, 128 Kbytes of SRAM, and 32 Kbytes of data flash. It integrates a 12-bit A/D converter (21 channels), 10-bit A/D converter (8 channels), dual 10-bit D/A converters, Ethernet MAC (not present in RX631 Group), USB 2.0 host/function/OTG, CAN, multiple SCI/I²C/RSPI interfaces, and hardware AES encryption. It targets industrial control systems requiring deterministic real-time response and secure firmware updates.
For engineers reviewing the R5F5631DCDBG#U0 datasheet, R5F5631DCDBG#U0 pinout, R5F5631DCDBG#U0 application, or R5F5631DCDBG#U0 equivalent, this page delivers verified specifications, package mapping to PLBG0176GA-A (176-pin LFBGA), functional differentiation from RX63N Group (no Ethernet controller), and validated alternative parts for migration or second-sourcing.
Technical Context
The R5F5631DCDBG#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 MPU, JTAG/FINE debug interfaces, and four low-power modes including deep software standby with RTC battery backup.
Its peripheral set excludes Ethernet MAC and EDMAC (distinguishing it from RX63N), but retains full USB 2.0 host/function/OTG (1 port each), three CAN channels (ISO 11898-1 compliant), 13 SCI channels (with LIN/Smart Card modes), four I²C interfaces (1 FM+), and parallel data capture unit (PDC) - all synchronized to PCLK up to 50 MHz.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | RXv1 32-bit CISC core with 5-stage pipeline, 165 DMIPS @ 100 MHz, IEEE-754 FPU, MPU support |
| Flash Memory | 1.5 Mbytes main flash, zero-wait-state operation at 100 MHz, on-board programmable |
| RAM & Data Flash | 128 Kbytes SRAM (no-wait @ 100 MHz); 32 Kbytes reprogrammable data flash (100,000 cycles) |
| Analog Peripherals | 21-channel 12-bit A/D (1 µs conversion @ 50 MHz PCLK); 8-channel 10-bit A/D; 2× 10-bit D/A; on-die temperature sensor (±1°C) |
| Communication Interfaces | USB 2.0 host/function/OTG (full-speed); 3× CAN (32 mailboxes each); 13× SCI; 4× I²C (1 FM+); 3× RSPI; no Ethernet MAC |
| Security & Timing | AES-128/192/256 ECB/CBC encryption via DEU; RTC with calendar, alarm, time-capture, battery backup |
| Package & Environment | PLBG0176GA-A: 176-pin LFBGA, 13 × 13 mm, 0.8 mm pitch; operating temp: –40°C to +85°C (D version) |
Pinout & Package
Package: PLBG0176GA-A - 176-pin Low-Profile Fine-Pitch Ball Grid Array (LFBGA), 13 × 13 mm body, 0.8 mm ball pitch, RoHS-compliant, lead-free.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC / VSS | Power supply / Ground | Dedicated power/ground pairs per I/O bank; 2.7–3.6 V core supply; separate AVCC0 for analog |
| XTAL / EXTAL | Main crystal oscillator input/output | Supports 4–16 MHz external crystal; enables PLL for 100 MHz system clock |
| RESET | Active-low reset input | Accepts asynchronous assertion; triggers POR, LVD, or software-initiated reset sequence |
| MD0 / MD1 | Mode selection pins | Configure boot mode: single-chip, ROM-enabled/disabled expansion mode at power-on |
| USB_VBUS / USB_ID | USB OTG detection inputs | Enable host/device role auto-detection; required for OTG functionality |
| TXDn / RXDn | SCI serial transmit/receive | Up to 13 configurable SCI channels; support asynchronous, clock-sync, smart-card, LIN modes |
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 |
| Memory protection unit (MPU) | Configurable region-based access control prevents unauthorized code/data access-critical for IEC 60730 Class B compliance |
| Data Encryption Unit (DEU) | Hardware AES engine supports 128/192/256-bit keys in ECB/CBC modes, enabling secure firmware updates and encrypted data storage |
| Real-time clock (RTC) with battery backup | Retains calendar/time across power loss using VBATT (2.0–3.6 V); supports alarm, periodic interrupt, and time-capture on external event |
| Programmable pulse generator (PPG) | Generates precise timing pulses triggered by MTU2/TPU events-used for LED dimming, stepper motor phase control, or sensor sampling sync |
| Independent watchdog timer (IWDT) | Dedicated 14-bit counter driven by 125-kHz LOCO oscillator; provides fail-safe recovery independent of main clock stability |
Applications
| Industrial PLC Controller | Secure IoT Gateway |
|---|---|
Use Scenario: Compact programmable logic controller managing discrete I/O, analog sensor inputs, and fieldbus communication in factory automation. IC Role / Device Role / Timing Role: Main application processor executing ladder logic, handling 21-channel 12-bit A/D acquisition, CAN bus messaging, and real-time task scheduling. Use Value: Integrated 128 Kbytes SRAM and zero-wait-state flash enable deterministic scan-cycle execution; hardware CRC and IWDT meet IEC 60730 safety requirements. |
Use Scenario: Edge gateway aggregating sensor data from Modbus/KNX networks and forwarding securely to cloud via TLS over Ethernet (via external PHY). IC Role / Device Role / Timing Role: Secure application host running lightweight RTOS, performing AES-encrypted payload packaging, USB device-side firmware updates, and multi-protocol bridging. Use Value: On-chip DEU accelerates TLS handshake; USB OTG allows field technician firmware recovery; 32 Kbytes data flash stores cryptographic keys and configuration. |
| Medical Diagnostic Device | Building Automation Controller |
Use Scenario: Portable ultrasound or ECG monitor requiring high-fidelity analog front-end sampling, real-time signal processing, and regulatory-compliant logging. IC Role / Device Role / Timing Role: Central MCU acquiring synchronized analog signals via 12-bit A/D with sample-and-hold, executing FFT-based analysis using FPU, and storing timestamped results. Use Value: 165 DMIPS + FPU enables real-time waveform analysis; RTC with battery backup ensures accurate audit-trail timestamps; temperature sensor monitors internal thermal drift. |
Use Scenario: HVAC controller interfacing with thermostats, valve actuators, CO₂ sensors, and BACnet MS/TP network in commercial buildings. IC Role / Device Role / Timing Role: Real-time coordinator managing 8-channel 10-bit A/D for environmental sensing, PWM-driven actuator control via TPU, and BACnet over RS485 via SCI. Use Value: 13 SCI channels support concurrent BACnet, Modbus, and debug interfaces; PPG outputs drive proportional valve drivers; low-power modes extend battery life in wireless nodes. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F563NDCDBG#U0 | RX63N variant with identical package (PLBG0176GA-A), 1.5 Mbytes flash, 128 Kbytes RAM, but adds Ethernet MAC + EDMAC and removes sub-clock oscillator | Suitable where IEEE 802.3 connectivity is required; not drop-in due to pin function reassignment (e.g., ETH_MDC/MDIO vs. GPIO) | Select when Ethernet is mandatory and PCB layout can accommodate PHY interface routing and additional power sequencing |
| R5F566TADDFP#30 | RX66T Group part in 100-pin LQFP; 1.5 Mbytes flash, 384 Kbytes RAM, enhanced timer (MTU3), no USB/IEBus, higher max freq (160 MHz) | Targeted at motor control; lacks USB/IEBus but adds triple-redundant A/D, encoder interfaces, and faster PWM resolution | Prefer for servo/inverter designs needing advanced motion control peripherals; requires package and pinout redesign |
Compared with R5F5631DCDBG#U0, R5F563NDCDBG#U0 adds Ethernet at the cost of sub-clock oscillator and requires PHY-level design changes, while R5F566TADDFP#30 trades USB/IEBus for motor-specific timers and higher performance-neither is pin-compatible, but both serve adjacent industrial segments with distinct peripheral priorities.
Availability
R5F5631DCDBG#U0 is available at Aetrix Electronics and suitable for industrial PLC controllers, secure IoT gateways, medical diagnostic devices, and building automation controllers requiring stable component supply, long-term lifecycle assurance, and traceable sourcing.
Supply support for R5F5631DCDBG#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 markets.
The RX631 Group is designed for cost-optimized, real-time industrial control applications demanding rich analog integration, secure firmware execution, and multi-protocol connectivity-without Ethernet PHY overhead.
FAQ
What is the maximum operating frequency and core type of the R5F5631DCDBG#U0?
The R5F5631DCDBG#U0 operates at a maximum frequency of 100 MHz and uses the 32-bit RXv1 CPU core with a 5-stage pipeline, delivering 165 DMIPS and integrated IEEE-754 single-precision floating-point unit. This core enables deterministic real-time execution for industrial control tasks while supporting compact code density through variable-length instructions.
Does the R5F5631DCDBG#U0 include an Ethernet MAC controller?
No, the R5F5631DCDBG#U0 belongs to the RX631 Group and explicitly excludes the Ethernet MAC and EDMAC peripherals. That functionality is reserved for the RX63N Group (e.g., R5F563NDCDBG#U0). The R5F5631DCDBG#U0 retains USB 2.0 host/function/OTG, CAN, SCI, I²C, and RSPI for wired connectivity instead.
What package type and pin count does the R5F5631DCDBG#U0 use?
The R5F5631DCDBG#U0 is packaged in the PLBG0176GA-A: a 176-pin Low-Profile Fine-Pitch Ball Grid Array with 13 × 13 mm body size and 0.8 mm ball pitch. This LFBGA package supports 133 general-purpose I/O pins, 18 of which are 5-V tolerant, and includes dedicated power/ground balls for noise-sensitive analog sections.
How much on-chip memory does the R5F5631DCDBG#U0 provide?
The R5F5631DCDBG#U0 integrates 1.5 Mbytes of on-chip flash memory (zero-wait-state at 100 MHz), 128 Kbytes of SRAM (zero-wait-state at 100 MHz), and 32 Kbytes of reprogrammable data flash rated for 100,000 erase/write cycles. These memory resources support complex firmware, real-time data buffering, and secure key storage.
Is hardware encryption supported on the R5F5631DCDBG#U0?
Yes, the R5F5631DCDBG#U0 includes a dedicated Data Encryption Unit (DEU) supporting AES-128/192/256 encryption and decryption in ECB and CBC modes. This hardware accelerator offloads cryptographic operations from the CPU, enabling secure firmware updates, encrypted data logging, and TLS stack acceleration without compromising real-time performance.
R5F5631DCDBG#U0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 176-LFBGA
- 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:
- 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, 21x12b; D/A 2x10b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F5631DCDBG#U0 FAQ
1.How can I place an order for R5F5631DCDBG#U0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F5631DCDBG#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 R5F5631DCDBG#U0 reliable?
The price and inventory of R5F5631DCDBG#U0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F5631DCDBG#U0 is usually 5 days.
3.What payment methods are accepted for R5F5631DCDBG#U0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F5631DCDBG#U0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F5631DCDBG#U0?
R5F5631DCDBG#U0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F5631DCDBG#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 R5F5631DCDBG#U0?
For technical support, including R5F5631DCDBG#U0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F5631DCDBG#U0 requirements.
6.How does Aetrix verify that R5F5631DCDBG#U0 is sourced from the original manufacturer or authorized distributors?
All R5F5631DCDBG#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 R5F5631DCDBG#U0 meets industry standards.
7.What is the process for return or replacement of R5F5631DCDBG#U0?
All R5F5631DCDBG#U0 units undergo pre-shipment inspection (PSI). If there is an issue with R5F5631DCDBG#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 R5F5631DCDBG#U0 part is unused and in its original packaging.
Return procedure for R5F5631DCDBG#U0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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