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Renesas R5F5631BCDFC#V0
- Part No.:
- R5F5631BCDFC#V0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 176-LQFP
- Datasheet:
-
R5F5631BCDFC#V0.pdf
- Description:
- IC MCU 32BIT 1MB FLASH 176LFQFP
- Quantity:
- Payment:
- Shipping:
Inventory:4,402
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Product details
Overview
R5F5631BCDFC#V0 from Renesas is a 100 MHz 32-bit RX631 Group microcontroller featuring a single-precision IEEE-754 FPU, 1 MB on-chip flash memory, 128 KB SRAM, and integrated 12-bit/10-bit A/D converters - designed for industrial control systems requiring deterministic real-time response, secure firmware execution, and robust peripheral integration without Ethernet.
For engineers reviewing the R5F5631BCDFC#V0 datasheet, R5F5631BCDFC#V0 pinout, R5F5631BCDFC#V0 application, or R5F5631BCDFC#V0 equivalent, this MCU delivers verified 165 DMIPS performance, hardware AES encryption (DEU), IEC60730-compliant safety functions, and full USB 2.0 host/function/OTG support - critical for embedded HMI, motor control, and networked sensor gateway designs.
Technical Context
The R5F5631BCDFC#V0 implements the RX 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 per memory area.
This device operates from a single 2.7–3.6 V supply with four low-power modes (sleep, all-module clock stop, software standby, deep software standby) and includes dedicated RTC power supply capability down to 2.3 V. Its clock system combines external crystal oscillator, internal PLL, and on-chip 125-kHz LOCO/50-MHz HOCO sources with independent frequency division for ICLK, PCLK, FCLK, and BCLK domains.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | RX 32-bit CPU, 100 MHz max operation, 165 DMIPS performance at full speed |
| Flash Memory | 1 MB on-chip main flash, zero wait states at 100 MHz, supports on-board/off-board programming |
| SRAM | 128 KB on-chip SRAM, zero wait states at 100 MHz, supports instruction/operand execution and deep standby backup |
| A/D Converter | 21-channel 12-bit S12AD + 8-channel 10-bit AD, 1.0 µs conversion time at 50 MHz PCLK, with sample-and-hold and temperature sensor interface |
| D/A Converter | 2-channel 10-bit DA output, voltage range 0 V to VREFH, suitable for analog actuator control |
| Crypto Engine | Data Encryption Unit (DEU) supporting AES-128/192/256 in ECB/CBC modes for secure firmware and communication |
| Operating Temp. | -40°C to +85°C (D version), qualified for industrial environments with thermal stability ±1°C |
Pinout & Package
Package: PLQP0176KB-A - 176-pin LQFP, 24 × 24 mm, 0.5 mm pitch, RoHS-compliant, surface-mount compatible.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC / VSS | Power supply / Ground | Dual 2.7–3.6 V supply domains with decoupling requirements per datasheet layout guidelines |
| XTAL / EXTAL | Main clock oscillator input/output | Supports 4–16 MHz crystal for precise system timing; enables PLL-based 100 MHz ICLK generation |
| RESET | Active-low reset input | Accepts asynchronous external reset; triggers POR, LVD, WDT, and software-initiated reset sequences |
| USB_VBUS / USB_DP / USB_DM | USB 2.0 full-speed interface | Enables host/function/OTG operation at 12 Mbps; VBUS detection supports bus-powered/self-powered mode selection |
| MTU2_0 / TPU_0–5 | Timer waveform I/O | Provides PWM, input capture, phase counting, and A/D trigger generation with digital filtering and buffered operation |
| SCI0–12 / RIIC0–3 / CAN0–1 | Serial peripheral interfaces | Configurable SCI channels support UART, SPI, I²C, LIN, and smart-card modes; dual CAN modules enable automotive diagnostics |
Key Features
| Feature | Design Value |
|---|---|
| Floating-point unit (FPU) | Single-precision IEEE-754 compliant arithmetic accelerates motor control algorithms and signal processing without software emulation overhead |
| IEC60730 safety support | Integrated oscillation-stoppage detection, CRC calculator, IWDT, and A/D self-diagnostic functions meet Class B compliance requirements |
| Flexible clock domain control | Independent programmable dividers for ICLK (CPU), PCLK (peripherals), FCLK (FlashIF), and BCLK (external bus) optimize power/performance trade-offs |
| Secure firmware execution | Memory Protection Unit (MPU) enforces privilege levels and region access permissions; DEU enables encrypted OTA updates and secure boot |
| High-integration I/O | 134 general-purpose pins with 5-V tolerance, open-drain capability, pull-up resistors, and 8-bit port switching for legacy interface compatibility |
Applications
| Industrial Motor Control | Smart Energy Gateway |
|---|---|
|
Use Scenario: Closed-loop servo drive with position feedback, current sensing, and field-oriented control (FOC). IC Role / Device Role / Timing Role: Real-time execution of FOC algorithm via RX CPU+FPU, synchronized PWM generation via MTU2/TPU, and ADC-triggered current sampling. Use Value: 100 MHz deterministic timing ensures <1 µs jitter in PWM dead-time insertion and 1.0 µs ADC conversion enables high-bandwidth current loop closure. |
Use Scenario: Multi-protocol energy meter aggregator communicating via RS485 (SCI), CAN (for submetering), and USB (configuration). IC Role / Device Role / Timing Role: Central protocol translator and data concentrator with simultaneous SCI, CAN, and USB 2.0 host/function operation. Use Value: Dual CAN channels (32 mailboxes each) and 13 SCI ports allow concurrent connection to 3+ utility meters; USB OTG enables field firmware updates via thumb drive. |
| Factory HMI Panel | Medical Diagnostic Sensor Hub |
|
Use Scenario: Touch-enabled operator interface with LCD display, button inputs, and alarm logging over Ethernet (via external PHY). IC Role / Device Role / Timing Role: Graphics controller interface via parallel bus (CS0–CS7), real-time event handling via IRQ pins, and secure local storage via data flash. Use Value: 176-pin LQFP provides sufficient GPIO for resistive touch matrix and backlight control; 32 KB data flash supports 100,000 erase cycles for audit trail storage. |
Use Scenario: Portable diagnostic device acquiring ECG, temperature, and SpO₂ signals with onboard analysis and Bluetooth LE offload. IC Role / Device Role / Timing Role: Analog front-end controller with 12-bit ADC (21 ch), temperature sensor, and AES-encrypted data packaging before wireless transmission. Use Value: On-die ±1°C temperature sensor eliminates external calibration; DEU encrypts patient data prior to BLE transmission, satisfying HIPAA-aligned security policies. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F563NACDFC | Same RX631 Group, 768 KB flash, 128 KB SRAM, identical package (PLQP0176KB-A), no Ethernet MAC | Lower code footprint requirement; suitable when application fits within 768 KB and retains same peripheral set | Select when firmware size is constrained and full 1 MB flash is unnecessary - reduces cost without sacrificing I/O or crypto capability |
| R5F5631ACDFC#V0 | Same package and flash/SRAM configuration (1 MB/128 KB), but D version (−40°C to +85°C) vs. G version (−40°C to +105°C) thermal rating | Standard industrial ambient use only; not rated for extended junction temperature in sealed enclosures or high-power density layouts | Choose for cost-sensitive applications operating within standard industrial temperature range where extended thermal margin is not required |
Compared with R5F5631BCDFC#V0, R5F563NACDFC offers reduced flash capacity for simpler firmware, while R5F5631ACDFC#V0 maintains identical memory/peripheral specs but omits the higher-grade thermal qualification - both serve as validated alternatives when design margins allow relaxed constraints on code size or operating temperature.
Availability
R5F5631BCDFC#V0 is available at Aetrix Electronics and suitable for industrial motor control, smart energy gateways, factory HMI panels, and medical sensor hubs requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for R5F5631BCDFC#V0 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 industrial, automotive, and enterprise applications.
The RX631 Group targets cost-optimized industrial control and IoT edge devices, emphasizing real-time determinism, functional safety (IEC60730), and secure connectivity - without Ethernet to reduce BOM cost and complexity.
FAQ
What is the maximum operating frequency and core performance of the R5F5631BCDFC#V0?
The R5F5631BCDFC#V0 operates at a maximum frequency of 100 MHz using the 32-bit RX CPU core and delivers 165 DMIPS of computational throughput. Its single-precision IEEE-754 floating-point unit enables efficient execution of math-intensive tasks such as motor control algorithms and digital signal processing without software emulation overhead. This performance level is fully validated across the specified −40°C to +85°C operating range.
Does the R5F5631BCDFC#V0 include hardware encryption capabilities?
Yes, the R5F5631BCDFC#V0 integrates a Data Encryption Unit (DEU) supporting AES-128, AES-192, and AES-256 encryption and decryption in ECB and CBC modes. This hardware-accelerated crypto engine enables secure firmware updates, encrypted data logging, and protected communication channels - essential for meeting IEC60730 Class B and HIPAA-aligned security requirements in industrial and medical applications.
How does the R5F5631BCDFC#V0 support functional safety standards like IEC60730?
The R5F5631BCDFC#V0 includes multiple hardware features for IEC60730 Class B compliance: oscillation-stoppage detection, built-in CRC calculator with selectable polynomials, independent watchdog timer (IWDT) with dedicated LOCO clock, self-diagnostic function for the 10-bit A/D converter, and frequency measurement capability for clock monitoring. These features are documented in Renesas Application Note R01AN1719JJ0100 and validated in the RX631 Group safety manual.
What are the key differences between the RX631 and RX63N Groups regarding the R5F5631BCDFC#V0?
The R5F5631BCDFC#V0 belongs to the RX631 Group, which excludes the Ethernet MAC and associated EDMAC found in the RX63N Group. It retains full USB 2.0 host/function/OTG, dual CAN, 13 SCI channels, 4 I²C interfaces, and the DEU crypto engine. This makes the R5F5631BCDFC#V0 ideal for applications needing rich peripheral connectivity and security without Ethernet PHY integration or associated layout complexity.
What package type and pin count does the R5F5631BCDFC#V0 use?
The R5F5631BCDFC#V0 uses the PLQP0176KB-A package: a 176-pin LQFP with 24 × 24 mm body size and 0.5 mm pitch. This package provides 134 general-purpose I/O pins with 5-V tolerance, open-drain capability, and configurable pull-up resistors - optimized for industrial PCB layouts requiring mechanical robustness and thermal dissipation without BGA assembly complexity.
R5F5631BCDFC#V0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 176-LQFP
- 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:
R5F5631BCDFC#V0 FAQ
1.How can I place an order for R5F5631BCDFC#V0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F5631BCDFC#V0 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 R5F5631BCDFC#V0 reliable?
The price and inventory of R5F5631BCDFC#V0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F5631BCDFC#V0 is usually 5 days.
3.What payment methods are accepted for R5F5631BCDFC#V0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F5631BCDFC#V0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F5631BCDFC#V0?
R5F5631BCDFC#V0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F5631BCDFC#V0 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 R5F5631BCDFC#V0?
For technical support, including R5F5631BCDFC#V0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F5631BCDFC#V0 requirements.
6.How does Aetrix verify that R5F5631BCDFC#V0 is sourced from the original manufacturer or authorized distributors?
All R5F5631BCDFC#V0 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 R5F5631BCDFC#V0 meets industry standards.
7.What is the process for return or replacement of R5F5631BCDFC#V0?
All R5F5631BCDFC#V0 units undergo pre-shipment inspection (PSI). If there is an issue with R5F5631BCDFC#V0, 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 R5F5631BCDFC#V0 part is unused and in its original packaging.
Return procedure for R5F5631BCDFC#V0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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