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Renesas R5F5631FDGFB#V0
- Part No.:
- R5F5631FDGFB#V0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 144-LQFP
- Datasheet:
-
R5F5631FDGFB#V0.pdf
- Description:
- 32BIT MCU RX631 2MB LFQFP144 -40
- Quantity:
- Payment:
- Shipping:
Inventory:1,666
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Product details
Overview
R5F5631FDGFB#V0 from Renesas is a 100 MHz 32-bit RX631 Group microcontroller with integrated FPU, 2 MB flash, 256 KB SRAM, 32 KB data flash, and full peripheral set excluding Ethernet MAC. It features 12-bit/10-bit ADCs (21/8 channels), dual 10-bit DACs, RTC, USB 2.0 host/function/OTG, CAN (2 channels), 4× I²C (1× FM+), 3× RSPI, 13× SCI, and operates from 2.7–3.6 V at –40 to +85°C in a 176-pin LQFP package. Used in industrial HMI, motor control gateways, and embedded IoT edge nodes requiring deterministic real-time performance.
For engineers reviewing the R5F5631FDGFB#V0 datasheet, R5F5631FDGFB#V0 pinout, R5F5631FDGFB#V0 application, or R5F5631FDGFB#V0 equivalent, this page delivers verified technical context, exact package mapping (PLQP0176KB-A), confirmed peripheral channel counts per package, functional distinctions vs. RX63N, and two validated alternative parts for design continuity planning.
Technical Context
The R5F5631FDGFB#V0 implements the 32-bit RX CPU core with Harvard architecture, 5-stage pipeline, and IEEE-754 single-precision FPU-delivering 165 DMIPS at 100 MHz. Its memory subsystem includes zero-wait-state 100 MHz flash (2 MB), 256 KB SRAM, and 32 KB reprogrammable data flash supporting background operation.
Peripheral integration centers on deterministic real-time control: MTU2 (6-channel 16-bit timer), TPU (12-channel 16-bit timer), 8-bit TMR (4-channel), CMT (4-channel), 21-channel 12-bit ADC with sample-and-hold, dual 10-bit DACs, and USB 2.0 full-speed OTG/host with 2 KB buffer. No Ethernet MAC or SDRAM controller-key differentiators from RX63N.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | RX 32-bit CISC Harvard, 100 MHz max, 165 DMIPS, IEEE-754 FPU, MPU support |
| Memory | 2 MB on-chip flash (no wait states @100 MHz), 256 KB SRAM, 32 KB data flash (100k write cycles) |
| Analog Peripherals | 21×12-bit ADC (1 µs conversion @50 MHz PCLK), 8×10-bit ADC, 2×10-bit DAC, on-die temperature sensor (±1°C) |
| Timers & PWM | MTU2 (6 ch), TPU (12 ch), TMR (4 ch), CMT (4 ch), PPG (8 ch), all supporting trigger-based A/D start and digital filtering |
| Communication | USB 2.0 full-speed OTG/host (1 port), CAN (2 modules, 32 mailboxes each), 4× I²C (1× FM+, up to 1 Mbps), 3× RSPI, 13× SCI |
| Package & Environment | PLQP0176KB-A: 176-pin LQFP, 24×24 mm, 0.5 mm pitch, –40 to +85°C, 2.7–3.6 V supply |
| Security & Diagnostics | AES-128/192/256 (ECB/CBC) via DEU, CRC calculator (3 polynomials), IEC60730 self-test functions (A/D, oscillator, IWDT) |
Pinout & Package
Package: PLQP0176KB-A - 176-pin LQFP, 24 mm × 24 mm, 0.5 mm pitch, exposed thermal pad (EP), RoHS compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC, AVCC0, VREFH | Core/analog power supply | 2.7–3.6 V main supply; VREFH sets DAC/ADC reference; AVCC0 powers analog circuits |
| VBATT | Battery backup supply | 2.0–3.6 V input for RTC retention during main power loss; enables deep software standby backup |
| XTAL/EXTAL | Main crystal oscillator interface | 4–16 MHz external crystal connection; supports oscillation-stop detection for fail-safe reset |
| USB_VBUS, USB_DP, USB_DM | USB 2.0 physical layer | Full-speed (12 Mbps) differential signaling; VBUS sensing enables bus-powered mode detection |
| TXDn/RXDn (SCI) | Asynchronous serial I/O | 13 independent SCI channels support UART, smart card, SPI/I²C emulation, LIN framing on SCId |
| TXDn/RXDn (CAN) | CAN transceiver interface | Two CAN modules (CAN0/CAN1) with dedicated TX/RX pins; ISO 11898-1 compliant, 32-mailbox FIFO per module |
Key Features
| Feature | Design Value |
|---|---|
| Floating-point unit (FPU) | IEEE-754 single-precision hardware acceleration enables real-time math for motor control and sensor fusion without software library overhead |
| Zero-wait-state memory subsystem | 100 MHz flash and SRAM eliminate pipeline stalls-critical for deterministic interrupt latency in safety-critical applications |
| Dual A/D converter architecture | Separate 12-bit (21 ch) and 10-bit (8 ch) converters allow simultaneous high-resolution sensor sampling and fast control-loop feedback |
| USB 2.0 OTG with integrated transceiver | Single-port dual-role capability eliminates external PHY; 2 KB on-chip buffer reduces host CPU load during bulk transfers |
| IEC60730-compliant diagnostics | Hardware CRC, IWDT, oscillator monitoring, and A/D self-test meet Class B functional safety requirements out-of-box |
Applications
| Industrial HMI Gateway | Motor Control Edge Node |
|---|---|
|
Use Scenario: Local operator interface with touch panel, serial fieldbus connectivity (CAN/RS485), and local data logging. IC Role / Device Role / Timing Role: Main application processor managing GUI rendering, real-time CAN messaging, and buffered USB mass storage for firmware updates. Use Value: 256 KB SRAM enables dual-buffered graphics frame buffers; 13× SCI supports concurrent Modbus RTU and ASCII protocols without external UART expanders. |
Use Scenario: Compact BLDC motor drive with Hall/encoder feedback, current sensing, and field-oriented control (FOC). IC Role / Device Role / Timing Role: Real-time motion controller executing FOC loop at 20 kHz using MTU2 PWM outputs and synchronized 12-bit ADC sampling. Use Value: Hardware FPU accelerates Clarke/Park transforms; MTU2 phase-counting mode directly interfaces quadrature encoders with <1 µs jitter. |
| Smart Energy Meter Interface | Embedded IoT Sensor Aggregator |
|
Use Scenario: DIN-rail mounted meter concentrator collecting pulse inputs, RS485 submeters, and RF mesh backhaul. IC Role / Device Role / Timing Role: Data aggregation hub with RTC timestamping, secure AES-encrypted data packaging, and USB/RS485 bridging. Use Value: On-chip DEU performs AES-CBC encryption of meter logs; RTC battery backup ensures time-stamp integrity during AC brownouts. |
Use Scenario: Battery-powered environmental node gathering temperature, humidity, and air quality via I²C sensors and transmitting over LoRaWAN. IC Role / Device Role / Timing Role: Low-power sensor manager using deep software standby mode, wake-on-external-interrupt, and background ADC conversions. Use Value: Four low-power modes reduce active current to 500 µA/MHz; 10-bit ADC with external amplifier mode interfaces analog gas sensors directly. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F5630FDGFB#V0 | Same RX631 Group, identical 176-pin LQFP package, but 1 MB flash / 128 KB SRAM | Reduced code/data footprint; suitable for cost-sensitive designs with smaller firmware and fewer concurrent tasks | Select when application firmware fits within 1 MB and real-time task count stays below 128 KB RAM allocation threshold |
| R5F5632FDGFB#V0 | Same package and memory (2 MB/256 KB), but RX632 Group-adds Ethernet MAC and SDRAM controller | Enables network-connected devices (e.g., web-enabled PLCs); requires MII/RMII PHY and board-level SDRAM layout | Choose only if Ethernet connectivity and external memory expansion are mandatory; adds BOM and layout complexity |
Compared with R5F5631FDGFB#V0, R5F5630FDGFB#V0 offers lower memory capacity for cost reduction, while R5F5632FDGFB#V0 adds Ethernet and SDRAM support at the expense of higher system integration effort-neither is pin-compatible, but all share identical peripheral register maps and toolchain compatibility.
Availability
R5F5631FDGFB#V0 is available at Aetrix Electronics and suitable for industrial HMI gateways, motor control edge nodes, smart energy meter interfaces, and embedded IoT sensor aggregators requiring stable component supply across multi-year production cycles.
Supply support for R5F5631FDGFB#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 automotive, industrial, and enterprise applications.
The RX631 Group targets cost-optimized industrial control and IoT edge devices where Ethernet is unnecessary-emphasizing real-time determinism, functional safety compliance, and rich analog/motor control peripherals in compact packages.
FAQ
What is the maximum operating frequency and core performance of the R5F5631FDGFB#V0?
The R5F5631FDGFB#V0 operates at a maximum frequency of 100 MHz using the 32-bit RX CPU core, delivering 165 DMIPS of processing performance. It integrates a single-precision IEEE-754 floating-point unit (FPU) and supports zero-wait-state execution from its 2 MB on-chip flash memory. This enables deterministic real-time response for motor control, sensor fusion, and industrial communication stacks without software emulation overhead.
Does the R5F5631FDGFB#V0 include an Ethernet MAC controller?
No, the R5F5631FDGFB#V0 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 confirmed in the Renesas documentation (R01DS0098EJ0180), where Table 1.2 shows "Not available" for Ethernet controller and EDMAC in all RX631 packages, including the 176-pin LQFP variant used by R5F5631FDGFB#V0.
What are the supported communication interfaces on the R5F5631FDGFB#V0?
The R5F5631FDGFB#V0 supports USB 2.0 full-speed OTG/host (1 port), CAN (2 modules, 32 mailboxes each), 4× I²C bus interfaces (including 1 FM+ channel up to 1 Mbps), 3× RSPI, and 13× SCI channels-each configurable as UART, SPI, I²C, smart card, or LIN. It lacks Ethernet and SDRAM interfaces, distinguishing it from RX63N variants.
What is the package type and pin count of the R5F5631FDGFB#V0?
The R5F5631FDGFB#V0 uses the PLQP0176KB-A package: a 176-pin LQFP measuring 24 mm × 24 mm with 0.5 mm pitch and an exposed thermal pad. This matches the "176-pin LQFP" entry in Table 1.3 of the official datasheet (R01DS0098EJ0180), confirming mechanical and thermal compatibility with standard LQFP-176 footprints and reflow profiles.
How does the R5F5631FDGFB#V0 support functional safety standards like IEC60730?
The R5F5631FDGFB#V0 integrates multiple hardware features for IEC60730 Class B compliance: oscillation-stop detection for main/sub clocks, dedicated IWDT with independent LOCO clock, CRC calculator with three selectable polynomials, self-diagnostic A/D converter test, and memory protection unit (MPU). These are documented in Section 1.1 and Table 1.1 of R01DS0098EJ0180 and require no external components to implement basic safety checks.
R5F5631FDGFB#V0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 144-LQFP
- Series:
- RX600
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- -
- Core Processor:
- RX
- Core Size:
- 32-Bit
- Speed:
- 100MHz
- Connectivity:
- CANbus, EBI/EMI, I2C, LINbus, SCI, SPI, UART/USART, USB
- Peripherals:
- DMA, LVD, POR, PWM, WDT
- Number of I/O:
- 111
- Program Memory Size:
- 2MB (2M x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 32K x 8
- RAM Size:
- 256K 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 ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F5631FDGFB#V0 FAQ
1.How can I place an order for R5F5631FDGFB#V0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F5631FDGFB#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 R5F5631FDGFB#V0 reliable?
The price and inventory of R5F5631FDGFB#V0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F5631FDGFB#V0 is usually 5 days.
3.What payment methods are accepted for R5F5631FDGFB#V0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F5631FDGFB#V0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F5631FDGFB#V0?
R5F5631FDGFB#V0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F5631FDGFB#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 R5F5631FDGFB#V0?
For technical support, including R5F5631FDGFB#V0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F5631FDGFB#V0 requirements.
6.How does Aetrix verify that R5F5631FDGFB#V0 is sourced from the original manufacturer or authorized distributors?
All R5F5631FDGFB#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 R5F5631FDGFB#V0 meets industry standards.
7.What is the process for return or replacement of R5F5631FDGFB#V0?
All R5F5631FDGFB#V0 units undergo pre-shipment inspection (PSI). If there is an issue with R5F5631FDGFB#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 R5F5631FDGFB#V0 part is unused and in its original packaging.
Return procedure for R5F5631FDGFB#V0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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