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Renesas R5F5631MFDLH#U0
- Part No.:
- R5F5631MFDLH#U0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 64-TFLGA
- Datasheet:
-
R5F5631MFDLH#U0.pdf
- Description:
- IC MCU 32BIT 256KB FLASH 64TFLGA
- Quantity:
- Payment:
- Shipping:
Inventory:2,177
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Product details
Overview
R5F5631MFDLH#U0 from Renesas is a 100-MHz 32-bit RX631 Group microcontroller featuring a single-precision IEEE-754 FPU, 165 DMIPS performance, 1.5 MB on-chip flash memory, 192 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 compact footprint.
For engineers reviewing the R5F5631MFDLH#U0 datasheet, R5F5631MFDLH#U0 pinout, R5F5631MFDLH#U0 application, or R5F5631MFDLH#U0 equivalent, this MCU delivers verified Ethernet MAC omission (vs. RX63N), USB 2.0 host/function support, CAN v2.0B compliance with 32 mailboxes, and IEC60730 safety features including CRC, self-diagnostic A/D, and oscillation-stop detection - critical for functional safety validation in embedded motor drives and building automation controllers.
Technical Context
The R5F5631MFDLH#U0 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 per memory area.
Its clock system includes main crystal oscillator (4–16 MHz), internal 50-MHz HOCO and 125-kHz LOCO, plus PLL for 100-MHz ICLK generation. Peripheral clocks (PCLK, FCLK, BCLK) are independently configurable up to 50 MHz, enabling precise timing isolation for ADC, USB, and external bus operations.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | RXv1 32-bit CPU with 5-stage pipeline, 165 DMIPS @ 100 MHz |
| Flash Memory | 1.5 MB on-chip, zero-wait-state operation at 100 MHz |
| SRAM | 192 KB on-chip, zero-wait-state access for instruction and operand use |
| A/D Converter | 21-channel 12-bit S12AD + 8-channel 10-bit AD, 1.0 μs conversion time @ PCLK=50 MHz |
| D/A Converter | 2-channel 10-bit DA output, voltage range 0 V to VREFH |
| Operating Voltage | 2.7–3.6 V (VCC/AVCC0/VREFH/VCC_USB), 2.3–3.6 V (VBATT for battery backup) |
| Temperature Range | −40°C to +85°C (D version) |
Pinout & Package
Package: PLQP0176KB-A - 176-pin LQFP, 24 × 24 mm, 0.5-mm pitch, RoHS-compliant, surface-mount.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC / AVCC0 / VREFH | Power supply / analog reference | Single 2.7–3.6 V rail powers digital logic, analog peripherals, and ADC reference; enables unified supply design |
| XTAL / EXTAL | Main crystal oscillator input/output | Supports 4–16 MHz external crystal for precise system clock generation and PLL multiplication |
| RESET | Active-low reset input | Asynchronous hardware reset with internal pull-up; compatible with external reset supervisors |
| IRQ0–IRQ15 | External interrupt inputs | 16 dedicated edge-triggered pins for fast, low-latency event handling without software polling |
| USB_VBUS / USB_ID / USB_DP / USB_DM | USB 2.0 full-speed interface | Integrated transceiver supports host/function/OTG modes; VBUS sensing enables dynamic role switching |
| TXD0 / RXD0 / SCK0 / SIN0 / SOUT0 | SCI0 serial interface signals | Configurable asynchronous/clock-synchronous mode with programmable baud rate generator |
Key Features
| Feature | Design Value |
|---|---|
| Floating-point unit (FPU) | IEEE-754 single-precision compliant; accelerates motor control algorithms and sensor fusion without software emulation |
| Data Encryption Unit (DEU) | AES-128/192/256 encryption/decryption in ECB/CBC modes; enables secure boot and firmware update integrity |
| IEC60730 Safety Support | Hardware CRC calculator, A/D self-diagnostic, IWDT with dedicated oscillator, and oscillation-stop detection - reduces Class B certification effort |
| Flexible Timer System | MTU2 (6 channels), TPU (12 channels), CMT (4 channels), and PPG (8 groups); supports PWM generation, encoder counting, and trigger-synchronized ADC sampling |
| Low-power operation | Four power modes (Sleep, All-module stop, Software standby, Deep software standby); 500 μA/MHz active current enables energy-sensitive applications |
Applications
| Industrial Motor Control | Building Automation Gateway |
|---|---|
|
Use Scenario: Closed-loop servo drive with position feedback, current sensing, and field-oriented control. IC Role / Device Role / Timing Role: Real-time execution of FOC algorithm, synchronized PWM generation via MTU2/TPU, and 12-bit ADC sampling of phase currents at ≤1 μs latency. Use Value: 100-MHz deterministic timing ensures <500 ns jitter on PWM outputs; integrated DEU secures firmware updates against tampering. |
Use Scenario: Protocol translation hub connecting BACnet MS/TP, Modbus RTU, and Ethernet/IP networks in HVAC systems. IC Role / Device Role / Timing Role: Dual-role USB interface handles configuration via PC, while SCI/RSPI/I2C manage legacy fieldbus peripherals; RTC enables scheduled maintenance logging. Use Value: 13 SCI channels and 4 RIIC interfaces eliminate external protocol bridge ICs; 192 KB SRAM buffers multi-protocol message queues. |
| Medical Diagnostic Sensor Node | Smart Energy Metering |
|
Use Scenario: Portable ultrasound front-end acquiring analog echo signals and performing beamforming preprocessing. IC Role / Device Role / Timing Role: High-speed parallel data capture via PDC (for image sensors), 12-bit ADC with sample-and-hold, and temperature-compensated calibration using on-die sensor. Use Value: PDC+DTC path transfers raw sensor data directly to SRAM without CPU intervention; ±1°C on-chip temperature sensor enables real-time gain correction. |
Use Scenario: DIN-rail mounted electricity meter supporting tariff switching, tamper detection, and secure remote firmware updates. IC Role / Device Role / Timing Role: AES-encrypted secure boot verifies firmware authenticity; CRC calculator validates metering data integrity; RTC with battery backup maintains time during mains failure. Use Value: IEC60730-certifiable safety features reduce qualification cost; 32 KB data flash (100k write cycles) stores lifetime energy logs and calibration constants. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 32-bit MCU applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F5631NFDLH#U0 | Same RX631 package and pinout; 2 MB flash, 256 KB SRAM, identical peripheral set | Higher memory headroom for complex protocol stacks or OTA update dual-bank firmware | Select when >1.5 MB application code size or extended data logging is required |
| R5F5630MFDLH#U0 | RX630 Group variant; same 1.5 MB flash/SRAM but lacks USB 2.0 host/function module and DEU | No hardware AES or USB OTG capability; reduced security and connectivity scope | Choose only if USB and cryptographic acceleration are unnecessary and BOM cost is primary constraint |
Compared with R5F5631MFDLH#U0, R5F5631NFDLH#U0 offers scalable memory without peripheral trade-offs, while R5F5630MFDLH#U0 sacrifices USB and DEU to meet lower-cost targets - making R5F5631MFDLH#U0 the optimal balance of security, connectivity, and real-time performance for industrial edge nodes.
Availability
R5F5631MFDLH#U0 is available at Aetrix Electronics and suitable for industrial motor control, building automation gateways, medical sensor nodes, and smart energy metering requiring stable component supply across multi-year production cycles.
Supply support for R5F5631MFDLH#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 IoT markets.
The RX631 Group is engineered for high-integrity industrial applications demanding real-time determinism, functional safety compliance (IEC60730), and integrated connectivity - with R5F5631MFDLH#U0 targeting space-constrained controllers where Ethernet is omitted but USB, CAN, and crypto acceleration remain essential.
FAQ
What is the maximum operating frequency and core architecture of the R5F5631MFDLH#U0?
The R5F5631MFDLH#U0 operates at a maximum frequency of 100 MHz and uses the 32-bit RXv1 CPU core with CISC Harvard architecture, 5-stage pipeline, and variable-length instructions. It delivers 165 DMIPS performance and includes a single-precision IEEE-754 floating-point unit - enabling efficient execution of real-time control algorithms without software emulation overhead in the R5F5631MFDLH#U0.
Does the R5F5631MFDLH#U0 include an Ethernet MAC controller?
No, the R5F5631MFDLH#U0 belongs to the RX631 Group, which explicitly excludes the Ethernet MAC (ETHERC) and its dedicated EDMAC - unlike the RX63N Group. This omission reduces pin count and power consumption while retaining USB 2.0 host/function, CAN, and multiple SCI interfaces. Engineers selecting the R5F5631MFDLH#U0 must implement Ethernet via external PHY or alternative protocols such as CAN FD or RS485.
What safety features does the R5F5631MFDLH#U0 provide for IEC60730 compliance?
The R5F5631MFDLH#U0 integrates hardware-based IEC60730 safety features including a CRC calculator (with three polynomials), self-diagnostic A/D converter test, independent watchdog timer (IWDT) with dedicated 125-kHz oscillator, oscillation-stoppage detection, and frequency measurement circuitry. These capabilities reduce software validation burden and support Class B certification - key for the R5F5631MFDLH#U0 in industrial control and medical auxiliary equipment.
What is the flash and SRAM capacity of the R5F5631MFDLH#U0?
The R5F5631MFDLH#U0 includes 1.5 MB of on-chip main flash memory and 192 KB of on-chip SRAM, both operating at zero wait states up to 100 MHz. The flash supports background programming/erasing and is rated for 100,000 write/erase cycles. This memory configuration enables robust firmware partitioning, real-time data buffering, and deterministic execution - all verified in the R5F5631MFDLH#U0 datasheet and product documentation.
Which communication interfaces are supported by the R5F5631MFDLH#U0?
The R5F5631MFDLH#U0 supports USB 2.0 full-speed host/function/OTG (1 port), CAN v2.0B (3 channels, 32 mailboxes), 13 SCI channels (asynchronous/clock-synchronous/smart-card modes), 4 I2C interfaces (including FM+), 3 RSPI channels, 1 IEBus channel, and optional PDC for parallel sensor data capture. It omits Ethernet but retains comprehensive industrial connectivity - a defining characteristic of the R5F5631MFDLH#U0 within the RX631 family.
R5F5631MFDLH#U0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 64-TFLGA
- 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, I2C, LINbus, SCI, SPI, USB
- Peripherals:
- DMA, LVD, POR, PWM, WDT
- Number of I/O:
- 39
- Program Memory Size:
- 256KB (256K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 32K x 8
- RAM Size:
- 64K x 8
- Voltage - Supply (Vcc/Vdd):
- 2.7V ~ 3.6V
- Data Converters:
- A/D 12x12b; D/A 2x10b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F5631MFDLH#U0 FAQ
1.How can I place an order for R5F5631MFDLH#U0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F5631MFDLH#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 R5F5631MFDLH#U0 reliable?
The price and inventory of R5F5631MFDLH#U0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F5631MFDLH#U0 is usually 5 days.
3.What payment methods are accepted for R5F5631MFDLH#U0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F5631MFDLH#U0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F5631MFDLH#U0?
R5F5631MFDLH#U0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F5631MFDLH#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 R5F5631MFDLH#U0?
For technical support, including R5F5631MFDLH#U0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F5631MFDLH#U0 requirements.
6.How does Aetrix verify that R5F5631MFDLH#U0 is sourced from the original manufacturer or authorized distributors?
All R5F5631MFDLH#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 R5F5631MFDLH#U0 meets industry standards.
7.What is the process for return or replacement of R5F5631MFDLH#U0?
All R5F5631MFDLH#U0 units undergo pre-shipment inspection (PSI). If there is an issue with R5F5631MFDLH#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 R5F5631MFDLH#U0 part is unused and in its original packaging.
Return procedure for R5F5631MFDLH#U0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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