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Renesas R5F5631BCDBG#G0
- Part No.:
- R5F5631BCDBG#G0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 176-LFBGA
- Datasheet:
-
R5F5631BCDBG#G0.pdf
- Description:
- 32BIT MCU RX631 1M/128K LFBGA176
- Quantity:
- Payment:
- Shipping:
Inventory:2,148
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Product details
Overview
R5F5631BCDBG#G0 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, 32 KB data flash, IEEE-754 single-precision FPU, and integrated 12-bit/10-bit A/D converters. It supports CAN (2 channels), USB 2.0 function mode, up to 13 SCI interfaces, 4 I²C buses, and operates across -40°C to +105°C - designed for industrial control and networked embedded systems requiring deterministic real-time performance.
For engineers reviewing the R5F5631BCDBG#G0 datasheet, R5F5631BCDBG#G0 pinout, R5F5631BCDBG#G0 application, or R5F5631BCDBG#G0 equivalent, this page delivers verified specifications, package mapping to PLBG0176GA-A (176-pin LFBGA), confirmed peripheral channel counts per package, functional distinctions from RX63N (e.g., no Ethernet MAC), and validated alternative MCUs for migration or sourcing continuity.
Technical Context
The R5F5631BCDBG#G0 implements the RXv1 CPU core with CISC Harvard architecture, 5-stage pipeline, and variable-length instructions enabling ultra-compact code density. It integrates a memory protection unit (MPU), JTAG/FINE debug interfaces, and supports little-endian or big-endian data arrangement - critical for safety-critical firmware partitioning and toolchain compatibility.
Its clock system includes PLL, internal 125-kHz LOCO and 50-MHz HOCO oscillators, and independent frequency division for ICLK (up to 100 MHz), PCLK (up to 50 MHz), FCLK (up to 50 MHz), and BCLK (up to 50 MHz). The device lacks Ethernet MAC and SDRAM controller - distinguishing it from RX63N variants and confirming its role in cost-optimized, non-LAN industrial nodes.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | RXv1 32-bit CISC Harvard CPU with 5-stage pipeline and 73 basic instructions |
| Max Operating Frequency | 100 MHz - enables 165 DMIPS performance and sub-1 µs interrupt latency |
| Flash Memory | 1 MB on-chip main flash, zero-wait-state operation at 100 MHz for deterministic code execution |
| SRAM | 128 KB on-chip SRAM, zero-wait-state access for both instructions and operands |
| A/D Converter | 21-channel 12-bit S12AD + 8-channel 10-bit AD - supports simultaneous sampling via external trigger or timer-generated start signals |
| D/A Converter | 2-channel 10-bit DA - provides analog output referenced to VREFH (2.7–3.6 V) for sensor calibration or actuator control |
| Operating Voltage | 2.7–3.6 V (VCC/AVCC0/VREFH/VCC_USB); VBATT support down to 2.3 V for RTC backup |
| Temperature Range | -40°C to +105°C (G version) - qualified for extended-temperature industrial environments |
Pinout & Package
Package: PLBG0176GA-A - 176-pin Low-Profile Fine-Pitch Ball Grid Array (LFBGA), 13 × 13 mm, 0.8-mm pitch, RoHS-compliant, lead-free.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC / VSS | Power supply / Ground | Dedicated power/ground pairs per I/O bank minimize noise coupling and ensure stable 100 MHz operation |
| P00–P17, P20–P27, P30–P37, P40–P47, P50–P57, P60–P67, P70–P77, P80–P87, P90–P97, PA0–PA7, PB0–PB7, PC0–PC7, PD0–PD7, PE0–PE7, PF0–PF7, PG0–PG7, PH0–PH7, PJ0–PJ7, PK0–PK7, PL0–PL7, PM0–PM7, PN0–PN7 | General-purpose I/O ports | 133 total I/O pins with 5-V tolerance on 18 pins, open-drain capability, and programmable pull-up resistors - supports mixed-voltage interfacing and robust industrial bus termination |
| CLKP / CLKN | Differential crystal oscillator input | Accepts 4–16 MHz external crystal for precise clock generation; supports fail-safe oscillation-stop detection |
| RESET | Active-low reset input | Asynchronous reset assertion clears CPU state and initiates power-on reset sequence with POR circuitry |
| IRQ0–IRQ15 | External interrupt inputs | 16 dedicated edge-triggered interrupt pins with configurable priority levels - enables fast response to fieldbus events or safety signals |
| USB_VBUS / USB_ID / USB_DP / USB_DM | USB 2.0 function interface | Full-speed (12 Mbps) USB device controller with integrated transceiver - requires no external PHY; supports bus-powered or self-powered modes |
Key Features
| Feature | Design Value |
|---|---|
| Floating-point unit (FPU) | IEEE-754 single-precision hardware accelerator - eliminates software emulation overhead for motor control algorithms or sensor fusion |
| Memory Protection Unit (MPU) | Configurable region-based access control - enforces isolation between application, bootloader, and safety-critical tasks per IEC 60730 Class B requirements |
| Data Encryption Unit (DEU) | AES-128/192/256 encryption/decryption in ECB/CBC modes - enables secure firmware updates and protected communication stack implementation |
| Real-time Clock (RTC) | Calendar/clock with alarm, periodic, and carry interrupts plus battery-backed time-capture - supports timestamping of process events without host CPU involvement |
| Independent Watchdog Timer (IWDT) | 14-bit counter driven by dedicated 125-kHz on-chip oscillator - guarantees fail-safe recovery even if main clock fails or software hangs |
| Peripheral Module Stop Control | Per-module clock gating - reduces active current to 500 µA/MHz while retaining full peripheral configurability for low-power sensor node operation |
Applications
| Industrial PLC I/O Module | Smart Energy Meter |
|---|---|
Use Scenario: Standalone digital I/O expansion unit with analog sensor inputs, relay outputs, and Modbus RTU over RS-485. IC Role / Device Role / Timing Role: Main controller executing cyclic scan logic, managing SCI-based Modbus protocol stack, and synchronizing ADC sampling to line frequency. Use Value: 128 KB SRAM accommodates dual-bank firmware for safe OTA updates; 21-channel 12-bit ADC enables simultaneous voltage/current/temperature acquisition with <1 µs conversion time. |
Use Scenario: DIN-rail mounted electricity meter with tariff switching, tamper detection, and secure data logging. IC Role / Device Role / Timing Role: System-on-chip handling metrology calculations (via FPU), secure storage (DEU + data flash), and RTC-driven billing cycles. Use Value: AES-256 encryption protects firmware and consumption logs; unique 16-byte ID enables device-level traceability; -40°C to +105°C rating ensures outdoor cabinet reliability. |
| Factory Automation Gateway | Medical Diagnostic Sensor Hub |
Use Scenario: Protocol translator bridging CANopen field devices to Ethernet/IP networks using external bridge ICs. IC Role / Device Role / Timing Role: Real-time coordinator managing CAN message scheduling, buffer management, and USB-based configuration interface. Use Value: Two CAN channels (32 mailboxes each) support multi-network diagnostics; USB 2.0 function mode enables plug-and-play PC configuration without additional USB host controllers. |
Use Scenario: Portable patient monitor aggregating ECG, SpO₂, and temperature data before wireless transmission. IC Role / Device Role / Timing Role: Safety-certified data acquisition engine performing analog front-end conditioning, filtering, and CRC-protected data packaging. Use Value: Integrated CRC calculator validates sensor data integrity; IEC 60730 compliance features (oscillation detection, self-diagnostic ADC) reduce external certification burden. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F563NACDBG#G0 | RX63N variant with identical package, flash (768 KB), RAM (128 KB), and peripherals - but adds Ethernet MAC and SDRAM controller | Suitable where LAN connectivity or external memory expansion is required; not drop-in due to added Ethernet pins and signal routing | Select only if Ethernet or SDRAM interface is mandatory; requires PCB redesign and driver adaptation |
| R5F566TADFP#30 | RX66T Group MCU: 160 MHz core, 512 KB flash, 128 KB SRAM, enhanced timer units (MTU3), no DEU or RTC battery backup | Targeted at high-performance motor control; lacks integrated crypto and extended-temp RTC - unsuitable for secure metering or long-term timestamping | Choose for servo drive applications needing higher PWM resolution and faster computation; verify absence of DEU meets security requirements |
Compared with R5F5631BCDBG#G0, the RX63N alternative adds Ethernet capability at the cost of increased layout complexity and power, while the RX66T offers higher compute throughput but sacrifices security acceleration and extended-temperature RTC - making R5F5631BCDBG#G0 optimal for balanced industrial control with firmware security and wide-temperature operation.
Availability
R5F5631BCDBG#G0 is available at Aetrix Electronics and suitable for industrial automation, smart metering, and factory gateway applications requiring stable component supply, extended-temperature qualification (-40°C to +105°C), and long-term lifecycle support.
Supply support for R5F5631BCDBG#G0 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, and power solutions for automotive, industrial, and IoT markets.
The RX631 Group is engineered for cost-sensitive, high-reliability industrial applications - delivering deterministic real-time performance, functional safety readiness (IEC 60730), and integrated analog/mixed-signal peripherals without Ethernet overhead.
FAQ
What is the maximum operating frequency and core type of the R5F5631BCDBG#G0?
The R5F5631BCDBG#G0 features a 32-bit RXv1 CPU core with a maximum operating frequency of 100 MHz, delivering 165 DMIPS performance. Its 5-stage pipeline and variable-length instruction set enable efficient code density and deterministic interrupt response - essential for real-time industrial control loops executed within strict timing budgets.
Does the R5F5631BCDBG#G0 include an Ethernet MAC controller?
No, the R5F5631BCDBG#G0 belongs to the RX631 Group and does not integrate an Ethernet MAC controller. This distinguishes it from the RX63N Group (e.g., R5F563NACDBG#G0), which includes Ethernet functionality. The R5F5631BCDBG#G0 is optimized for applications requiring CAN, USB, and serial interfaces without LAN connectivity.
What package type and pin count does the R5F5631BCDBG#G0 use?
The R5F5631BCDBG#G0 uses the PLBG0176GA-A package: a 176-pin Low-Profile Fine-Pitch Ball Grid Array measuring 13 × 13 mm with 0.8-mm pitch. This LFBGA package supports 133 general-purpose I/O pins, 18 of which are 5-V tolerant, and provides thermal and electrical performance suited for industrial PCB layouts.
How much on-chip memory does the R5F5631BCDBG#G0 provide?
The R5F5631BCDBG#G0 integrates 1 MB of on-chip flash memory (zero-wait-state at 100 MHz), 128 KB of SRAM (zero-wait-state), and 32 KB of reprogrammable data flash rated for 100,000 erase/write cycles. This memory configuration supports complex real-time firmware, dual-bank OTA updates, and persistent parameter storage without external EEPROM.
Is the R5F5631BCDBG#G0 qualified for extended temperature operation?
Yes, the R5F5631BCDBG#G0 is the G-version part, qualified for operation from -40°C to +105°C. This extended temperature range, combined with its 2.7–3.6 V supply voltage and RTC battery backup capability, makes it suitable for deployment in harsh industrial environments such as outdoor energy infrastructure or factory-floor control cabinets.
R5F5631BCDBG#G0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 176-LFBGA
- Series:
- RX631
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- -
- Core Processor:
- RX
- Core Size:
- 32-Bit
- Speed:
- 100MHz
- Connectivity:
- CANbus, EBI/EMI, Ethernet, 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:
R5F5631BCDBG#G0 FAQ
1.How can I place an order for R5F5631BCDBG#G0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F5631BCDBG#G0 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 R5F5631BCDBG#G0 reliable?
The price and inventory of R5F5631BCDBG#G0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F5631BCDBG#G0 is usually 5 days.
3.What payment methods are accepted for R5F5631BCDBG#G0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F5631BCDBG#G0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F5631BCDBG#G0?
R5F5631BCDBG#G0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F5631BCDBG#G0 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 R5F5631BCDBG#G0?
For technical support, including R5F5631BCDBG#G0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F5631BCDBG#G0 requirements.
6.How does Aetrix verify that R5F5631BCDBG#G0 is sourced from the original manufacturer or authorized distributors?
All R5F5631BCDBG#G0 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 R5F5631BCDBG#G0 meets industry standards.
7.What is the process for return or replacement of R5F5631BCDBG#G0?
All R5F5631BCDBG#G0 units undergo pre-shipment inspection (PSI). If there is an issue with R5F5631BCDBG#G0, 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 R5F5631BCDBG#G0 part is unused and in its original packaging.
Return procedure for R5F5631BCDBG#G0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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