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Renesas R5F5631BCDBG#U0
- Part No.:
- R5F5631BCDBG#U0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 176-LFBGA
- Datasheet:
-
R5F5631BCDBG#U0.pdf
- Description:
- IC MCU 32BIT 1MB FLASH 176LFBGA
- Quantity:
- Payment:
- Shipping:
Inventory:2,075
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Product details
Overview
R5F5631BCDBG#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, 32 KB data flash, IEEE-754 single-precision FPU, and integrated 12-bit/10-bit A/D converters - designed for industrial control systems requiring deterministic real-time response and functional safety support (IEC60730).
For engineers reviewing the R5F5631BCDBG#U0 datasheet, R5F5631BCDBG#U0 pinout, R5F5631BCDBG#U0 application, or R5F5631BCDBG#U0 equivalent, this page delivers verified specifications, package mapping to PLBG0176GA-A (13 × 13 mm, 0.8-mm pitch LFBGA), confirmed peripheral count (111 GPIO, 3 CAN channels, 4 I²C, 3 SPI, 13 SCI), RTC with battery backup, and Ethernet-free architecture distinguishing it from RX63N variants.
Technical Context
The R5F5631BCDBG#U0 implements the CISC Harvard-architecture RX CPU with 5-stage pipeline, variable-length instructions, and MPU support - enabling ultra-compact code and deterministic interrupt latency down to one CPU cycle. It operates from a single 2.7–3.6 V supply and integrates dual-clock domain control (ICLK up to 100 MHz, PCLK up to 50 MHz) for precise peripheral timing.
Its peripheral set excludes Ethernet MAC and SDRAM controller (RX63N features), but retains full USB 2.0 host/function/OTG, 3-channel CAN (ISO11898-1), parallel data capture unit (PDC), and DEU AES encryption engine - making it suitable for secure, connected industrial edge nodes without external PHY requirements.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | RX 32-bit CISC Harvard, 100 MHz max - enables 165 DMIPS performance with single-cycle 32×32 multiply and IEEE-754 FPU for real-time math-intensive tasks. |
| Memory | 1 MB flash (no wait states @ 100 MHz), 128 KB SRAM, 32 KB reprogrammable data flash - supports background programming and deep software standby retention. |
| Analog Peripherals | 21-channel 12-bit A/D (1 µs conversion @ 50 MHz PCLK), 8-channel 10-bit A/D, 2-channel 10-bit D/A, on-die temperature sensor (±1°C) - enables local sensor fusion without external ADCs. |
| Communication | 3× CAN (32 mailboxes each), 4× I²C (up to 1 Mbps), 3× SPI, 13× SCI (async/sync/smartcard modes), USB 2.0 host/function/OTG - provides multi-protocol fieldbus and PC connectivity in one chip. |
| Timers & Control | 16× 16-bit TPU channels, 6× MTU2 channels, 4× 8-bit TMR, 4× CMT, RTC with calendar/alarm/time-capture - supports motor control PWM, encoder feedback, and time-stamped event logging. |
| Security & Safety | AES-128/192/256 (ECB/CBC) via DEU, CRC calculator (3 polynomials), IWDT with dedicated LOCO clock, oscillation-stop detection - meets IEC60730 Class B self-test requirements. |
| Package & Environment | PLBG0176GA-A (176-pin LFBGA, 13 × 13 mm, 0.8 mm pitch), -40 to +85°C operating range, 5-V tolerant I/O on 18 pins - compatible with standard PCB assembly and industrial ambient conditions. |
Pinout & Package
Package: PLBG0176GA-A - 176-pin Low-Profile Fine-Pitch Ball Grid Array (LFBGA), 13 mm × 13 mm body, 0.8 mm ball pitch, RoHS-compliant, lead-free solder profile.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC / VSS | Power supply / Ground | Dedicated power domains for core (VCC), analog (AVCC0), USB (VCC_USB), and backup (VBATT) - enable independent noise isolation and battery-backed RTC operation. |
| XTAL / EXTAL | Main crystal oscillator input/output | Supports 4–16 MHz external crystals for precise system clock generation; internal PLL achieves 100 MHz ICLK with jitter < ±50 ppm. |
| RTC_VCC / RTC_VSS | Real-time clock power/ground | Separate low-noise power rails for RTC module - allows continuous timekeeping during deep software standby using VBATT (2.0–3.6 V). |
| IRQ0–IRQ15 | External interrupt inputs | 16 dedicated edge-triggered interrupt pins with configurable pull-up/pull-down - support fast wake-up from low-power modes on sensor or fieldbus events. |
| TXD0–RXD0, etc. | SCI serial interface signals | 13 independent SCI modules with flexible mode selection (async, sync, smartcard, LIN) - eliminate need for external UART expanders in multi-protocol gateways. |
Key Features
| Feature | Design Value |
|---|---|
| On-chip FPU | IEEE-754 single-precision floating-point unit enables real-time filtering, PID tuning, and sensor calibration without software emulation overhead. |
| IEC60730 Compliance Support | Integrated oscillation-stop detection, CRC calculator, IWDT, and A/D self-diagnostic - reduces external component count for Class B safety certification. |
| Flexible Clock Architecture | Independent ICLK/PCLK/FCLK/BCLK dividers allow simultaneous 100 MHz CPU, 50 MHz peripherals, and 50 MHz external bus - simplifies timing-critical interface design. |
| Low-Power Operation | Four power modes (Sleep, All-module stop, Software standby, Deep software standby) with 500 µA/MHz active current - extends battery life in portable HMI and remote I/O. |
| Secure Data Handling | Hardware AES engine (128/192/256-bit keys, ECB/CBC) accelerates encrypted firmware updates and secure communication without CPU load penalty. |
Applications
| Industrial PLC I/O Module | Smart Energy Gateway |
|---|---|
|
Use Scenario: Compact DIN-rail-mounted I/O expansion unit collecting analog/digital sensor data and executing local logic control. IC Role / Device Role / Timing Role: Main controller managing 21-channel A/D sampling, CAN fieldbus communication, and real-time task scheduling via MTU2/TPU timers. Use Value: Integrated 12-bit A/D with sample-and-hold and hardware-triggered conversion eliminates external signal conditioning ICs and reduces BOM cost by ~$1.20/unit. |
Use Scenario: Residential energy monitor aggregating data from smart meters, inverters, and home appliances via multiple protocols. IC Role / Device Role / Timing Role: Protocol bridge handling concurrent CAN (inverter), I²C (meter ICs), and USB (PC configuration) with time-synchronized data logging via RTC. Use Value: Dual USB host/function capability enables field technician configuration via USB stick while maintaining cloud upload over CAN-connected gateway - no second MCU required. |
| Motor Drive Control Board | Medical Diagnostic Sensor Hub |
|
Use Scenario: Brushless DC motor controller with position feedback, current sensing, and safety monitoring for HVAC blowers. IC Role / Device Role / Timing Role: Real-time PWM generator (MTU2 complementary mode), 10-bit D/A for analog reference, and IWDT for fail-safe shutdown. Use Value: Hardware PWM dead-time insertion and phase-counting mode reduce firmware complexity and ensure sub-microsecond timing accuracy for BLDC commutation. |
Use Scenario: Portable diagnostic device acquiring ECG, temperature, and SpO₂ signals with onboard processing and Bluetooth LE handoff. IC Role / Device Role / Timing Role: Signal acquisition hub running IEC60730 self-tests on A/D converter and temperature sensor before clinical measurement cycles. Use Value: On-chip CRC and AES acceleration enable secure firmware updates and HIPAA-compliant data encryption at line rate - meeting FDA premarket submission requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F563NBDDBG | RX63N variant with identical PLBG0176GA-A package, 1 MB flash, 128 KB RAM, but adds Ethernet MAC and EDMAC - requires external PHY and increases layout complexity. | Suitable where IEEE 802.3 connectivity is mandatory (e.g., industrial Ethernet I/O); not drop-in due to pin function reassignment and added Ethernet signals. | Select only if Ethernet is required; otherwise R5F5631BCDBG#U0 offers lower BOM cost and simpler layout. |
| R5F566TADDFP | RX66T variant in 100-pin LQFP, 1 MB flash, 128 KB RAM, optimized for motor control with 32-bit timer units and enhanced PWM resolution - lacks USB, CAN, and I²C count. | Better suited for high-performance motor drives needing >1 ns PWM resolution; unsuitable for multi-protocol gateways due to reduced peripheral count. | Choose for servo/inverter applications; avoid for protocol-rich edge nodes where R5F5631BCDBG#U0's 13 SCI and 4 I²C channels provide superior integration. |
Compared with R5F563NBDDBG, R5F5631BCDBG#U0 removes Ethernet overhead for lower power and cost in non-networked controllers; compared with R5F566TADDFP, it trades motor-specific timers for broader communications flexibility - making it optimal for protocol-aggregation tasks in industrial IoT endpoints.
Availability
R5F5631BCDBG#U0 is available at Aetrix Electronics and suitable for industrial automation, smart energy metering, and medical sensor hub designs requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant manufacturing.
Supply support for R5F5631BCDBG#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, and power solutions for automotive, industrial, and IoT markets - with over 40 years of embedded systems expertise.
The RX631 Group targets cost-sensitive industrial control applications requiring functional safety, rich peripheral integration, and deterministic real-time performance - positioning R5F5631BCDBG#U0 as a balanced solution between legacy RL78 and high-end RX700 series.
FAQ
What is the maximum operating frequency and core architecture of the R5F5631BCDBG#U0?
The R5F5631BCDBG#U0 operates at a maximum frequency of 100 MHz using the 32-bit RX CPU core - a CISC Harvard architecture with 5-stage pipeline, variable-length instructions, and memory protection unit (MPU). It delivers 165 DMIPS performance and includes single-precision IEEE-754 floating-point unit for real-time mathematical operations essential in industrial control algorithms.
Does the R5F5631BCDBG#U0 include Ethernet MAC functionality?
No, the R5F5631BCDBG#U0 belongs to the RX631 Group, which explicitly excludes Ethernet MAC and EDMAC peripherals - unlike the RX63N Group. This omission reduces pin count, power consumption, and layout complexity, making R5F5631BCDBG#U0 ideal for applications that rely on CAN, USB, or I²C instead of wired Ethernet connectivity.
What package type and pin count does the R5F5631BCDBG#U0 use?
The R5F5631BCDBG#U0 uses the PLBG0176GA-A package: a 176-pin Low-Profile Fine-Pitch Ball Grid Array with 13 mm × 13 mm body size and 0.8 mm ball pitch. This LFBGA package supports automated PCB assembly and provides 111 general-purpose I/O pins, including 18 with 5-V tolerance - validated for industrial thermal and mechanical reliability.
How much on-chip memory does the R5F5631BCDBG#U0 integrate?
The R5F5631BCDBG#U0 integrates 1 MB of on-chip flash memory (executed at 100 MHz with zero wait states), 128 KB of SRAM (also zero wait states), and 32 KB of reprogrammable data flash rated for 100,000 erase/write cycles. The data flash supports background programming/erasing (BGO), enabling firmware updates without halting application execution.
Which communication interfaces are supported by the R5F5631BCDBG#U0?
The R5F5631BCDBG#U0 supports 3 CAN channels (ISO11898-1 compliant, 32 mailboxes each), 4 I²C interfaces (one FM+, up to 1 Mbps), 3 SPI channels (RSPI), 13 SCI modules (with async/sync/smartcard/LIN modes), and full-speed USB 2.0 host/function/OTG - all accessible within its 176-pin LFBGA footprint without external transceivers or level shifters.
R5F5631BCDBG#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:
- 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#U0 FAQ
1.How can I place an order for R5F5631BCDBG#U0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F5631BCDBG#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 R5F5631BCDBG#U0 reliable?
The price and inventory of R5F5631BCDBG#U0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F5631BCDBG#U0 is usually 5 days.
3.What payment methods are accepted for R5F5631BCDBG#U0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F5631BCDBG#U0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F5631BCDBG#U0?
R5F5631BCDBG#U0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F5631BCDBG#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 R5F5631BCDBG#U0?
For technical support, including R5F5631BCDBG#U0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F5631BCDBG#U0 requirements.
6.How does Aetrix verify that R5F5631BCDBG#U0 is sourced from the original manufacturer or authorized distributors?
All R5F5631BCDBG#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 R5F5631BCDBG#U0 meets industry standards.
7.What is the process for return or replacement of R5F5631BCDBG#U0?
All R5F5631BCDBG#U0 units undergo pre-shipment inspection (PSI). If there is an issue with R5F5631BCDBG#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 R5F5631BCDBG#U0 part is unused and in its original packaging.
Return procedure for R5F5631BCDBG#U0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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