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Renesas R5F5631MDDFM#V0
- Part No.:
- R5F5631MDDFM#V0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
R5F5631MDDFM#V0.pdf
- Description:
- IC MCU 32BIT 256KB FLASH 64LFQFP
- Quantity:
- Payment:
- Shipping:
Inventory:4,790
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Product details
Overview
R5F5631MDDFM#V0 from Renesas is a 100 MHz 32-bit RX CPU core microcontroller in the RX631 Group, featuring 512 KB on-chip flash memory, 64 KB SRAM, 32 KB data flash, and integrated 12-bit/10-bit A/D converters. It supports USB 2.0 full-speed host/function interface, CAN (ISO 11898-1), up to 13 SCI channels, I²C, SPI, and RTC - designed for industrial control and embedded HMI applications requiring deterministic real-time performance without Ethernet.
For engineers reviewing the R5F5631MDDFM#V0 datasheet, R5F5631MDDFM#V0 pinout, R5F5631MDDFM#V0 application, or R5F5631MDDFM#V0 equivalent, key selection criteria include its 512 KB flash capacity, 64 KB SRAM, 100 MHz operation with 165 DMIPS, IEEE-754 FPU support, and absence of Ethernet MAC - distinguishing it from RX63N variants.
Technical Context
The R5F5631MDDFM#V0 implements the CISC Harvard-architecture RX CPU core with 5-stage pipeline, variable-length instructions, and memory protection unit (MPU). It operates at up to 100 MHz from a 2.7–3.6 V supply and delivers 165 DMIPS with single-precision IEEE-754 floating-point unit and dual multiply-accumulate units.
It integrates dedicated peripherals including 21-channel 12-bit A/D converter (1 µs conversion time at 50 MHz PCLK), 2-channel 10-bit D/A converter, temperature sensor (±1°C), CRC calculator, AES encryption engine (128/192/256-bit keys), and four low-power modes - all optimized for IEC 60730-compliant safety-critical embedded systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | RX 32-bit CISC Harvard architecture with 5-stage pipeline, 165 DMIPS @ 100 MHz |
| Max Operating Frequency | 100 MHz system clock (ICLK), enabling deterministic real-time execution |
| Flash Memory | 512 KB on-chip main flash, no wait states at 100 MHz - sufficient for medium-complexity firmware with OTA update space |
| SRAM | 64 KB on-chip SRAM, no wait states - supports real-time stack, buffers, and control data structures |
| A/D Converter | 21 × 12-bit channels + 8 × 10-bit channels, 1 µs conversion time - enables high-resolution analog sensing in motor control or power monitoring |
| USB Interface | Full-speed USB 2.0 host/function controller (12 Mbps) with 2 KB buffer - supports device enumeration and host-side peripheral attachment |
| Operating Temperature | −40°C to +85°C (D version) - qualified for industrial ambient environments without derating |
Pinout & Package
Package: PLQP0176KB-A - 176-pin LQFP, 24 mm × 24 mm, 0.5 mm pitch, RoHS-compliant, surface-mount.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC / VSS | Power supply / Ground | Dedicated pairs per power domain; decoupling required within 10 mm for stable 100 MHz operation |
| XTAL / EXTAL | Main crystal oscillator input/output | Supports 4–16 MHz external crystal; essential for precise timing and USB clock derivation |
| RESET# | Active-low reset input | Asynchronous hardware reset with internal pull-up; compatible with pushbutton or supervisor IC assertion |
| MD0 / MD1 | Mode select pins | Configure boot source (on-chip ROM vs. external bus); sampled at power-on reset only |
| USB_VBUS / USB_ID | USB detection inputs | Enable OTG role negotiation and VBUS presence sensing per USB 2.0 specification |
| AD00–AD20 | Analog input channels | 21 dedicated 12-bit A/D inputs with shared sample-and-hold; support simultaneous sampling via trigger synchronization |
Key Features
| Feature | Design Value |
|---|---|
| Floating-point unit (FPU) | IEEE-754 single-precision compliance enables efficient math-intensive algorithms (e.g., PID tuning, sensor fusion) without software emulation overhead |
| Memory Protection Unit (MPU) | Hardware-enforced memory access control across up to 16 regions - critical for partitioning safety-critical and non-safety firmware tasks |
| Data Flash (E2) | 32 KB reprogrammable flash (100,000 write/erase cycles) with background operation - supports field-updatable calibration data or configuration storage |
| IEC 60730 Support | Integrated oscillation-stop detection, CRC calculator, IWDT, and A/D self-diagnostic - reduces external component count for Class B compliance |
| Low-power modes | Four modes (Sleep, All-module clock stop, Software standby, Deep software standby) with sub-µA retention current - extends battery life in portable HMI |
Applications
| Industrial PLC I/O Module | Smart Energy Meter |
|---|---|
Use Scenario: Local processing of analog sensor inputs (current/voltage transformers), digital I/O status, and Modbus RTU communication over RS-485. IC Role / Device Role / Timing Role: Central real-time controller executing cyclic scan logic, A/D acquisition, and protocol stack - synchronized to 1 ms timer interrupt. Use Value: 21-channel 12-bit A/D with 1 µs conversion and hardware trigger support enables precise, jitter-free sampling across multiple CT/PT inputs per cycle. | Use Scenario: Measurement of active/reactive energy, tamper detection, and secure data logging in DIN-rail mounted electricity meters. IC Role / Device Role / Timing Role: Safety-certified metering SoC handling metrology calculations, AES-encrypted storage, and RTC-backed event timestamping. Use Value: Integrated AES engine (128/192/256-bit) and CRC calculator eliminate need for external security IC, reducing BOM cost and board area. |
| Embedded HMI Controller | Motor Drive Control Panel |
Use Scenario: Touch-enabled operator interface with local graphics rendering, button debouncing, and CAN-based machine state reporting. IC Role / Device Role / Timing Role: Application processor managing GUI refresh, touch interrupt handling, and serial communication - leveraging 64 KB SRAM for frame buffer and stack. Use Value: USB 2.0 full-speed host capability allows direct connection to USB flash drives for firmware updates or log export without PC dependency. | Use Scenario: Compact control panel for HVAC or pump drives, displaying RPM, fault codes, and accepting parameter adjustments via keypad. IC Role / Device Role / Timing Role: Real-time monitor interfacing with drive MCU via CAN or SCI, performing safety checks and user input validation. Use Value: Independent watchdog timer (IWDT) with dedicated LOCO clock ensures fail-safe recovery even during main clock failure - meeting SIL-2 functional safety requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F563NEDDFC | Same RX631 package (PLQP0176KB-A), but RX63N Group - includes Ethernet MAC and 256 KB SRAM vs. 64 KB | Required where 10/100 Mbps Ethernet connectivity is mandatory (e.g., industrial gateways) | Select only if Ethernet PHY integration is needed; otherwise R5F5631MDDFM#V0 offers lower cost and power for non-networked control |
| R5F566TADDFP | RX66T Group part in 100-pin LQFP; higher 160 MHz CPU, FPU, 256 KB flash, but no USB host and reduced peripheral count | Targeted at motor control with advanced PWM timers (MTU3), not general-purpose HMI or communication-centric designs | Choose when torque/current loop timing demands exceed RX631 capabilities; avoid if USB or rich SCI/I²C count is required |
Compared with R5F563NEDDFC, R5F5631MDDFM#V0 omits Ethernet to reduce complexity and cost while retaining full USB, CAN, and analog capability - making it optimal for standalone control nodes. Versus R5F566TADDFP, it trades peak CPU speed for broader peripheral integration and USB host support essential for field-serviceable devices.
Availability
R5F5631MDDFM#V0 is available at Aetrix Electronics and suitable for industrial PLC modules, smart energy meters, embedded HMIs, and motor drive control panels requiring stable component supply, long-term lifecycle assurance, and automotive-grade reliability under extended temperature operation.
Supply support for R5F5631MDDFM#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, and power solutions for industrial, automotive, and IoT markets.
The RX631 Group is engineered for cost-sensitive, real-time embedded applications demanding robust peripheral integration, functional safety support (IEC 60730), and deterministic execution - without the overhead of Ethernet or high-end graphics acceleration.
FAQ
What is the maximum operating frequency and DMIPS rating of the R5F5631MDDFM#V0?
The R5F5631MDDFM#V0 operates at a maximum frequency of 100 MHz and delivers 165 DMIPS of processing performance. This is achieved using the 32-bit RX CPU core with 5-stage pipeline and hardware floating-point unit. The R5F5631MDDFM#V0 maintains this performance across its full −40°C to +85°C operating range with no frequency derating, making it suitable for time-critical industrial control loops where deterministic timing is essential.
Does the R5F5631MDDFM#V0 include an Ethernet MAC controller?
No, the R5F5631MDDFM#V0 does not include an Ethernet MAC controller. It belongs to the RX631 Group, which explicitly excludes Ethernet functionality - unlike the RX63N Group. This omission reduces silicon cost and power consumption while preserving USB 2.0 full-speed host/function, CAN, and rich serial interface support. Engineers selecting the R5F5631MDDFM#V0 should plan for external network connectivity via CAN, USB CDC, or optional external Ethernet PHY if required.
What are the flash and RAM capacities of the R5F5631MDDFM#V0?
The R5F5631MDDFM#V0 integrates 512 KB of on-chip main flash memory and 64 KB of on-chip SRAM, both operating at zero wait states up to 100 MHz. It also includes 32 KB of reprogrammable data flash (E2) rated for 100,000 write/erase cycles. These capacities support medium-complexity firmware images, real-time data buffers, and field-updatable calibration tables - confirmed in Renesas document R01DS0098EJ0180 Table 1.3 for RX631 Group LQFP-176 variants.
Which communication interfaces are supported by the R5F5631MDDFM#V0?
The R5F5631MDDFM#V0 supports USB 2.0 full-speed host/function (12 Mbps), CAN (ISO 11898-1, 2 channels), up to 13 SCI channels (asynchronous, clock-synchronous, smart-card, SPI/I²C emulation), 4 I²C bus interfaces (up to 1 Mbps), 3 SPI channels, and IEBus. It does not support Ethernet or SD card interfaces. All interfaces are accessible via dedicated pins on the PLQP0176KB-A package, with register-level control documented in the RX631 Group hardware manual.
Is the R5F5631MDDFM#V0 qualified for industrial temperature operation?
Yes, the R5F5631MDDFM#V0 is qualified for industrial temperature operation from −40°C to +85°C (D version), as specified in Renesas documentation R01DS0098EJ0180. This rating applies across all electrical specifications including 100 MHz operation, flash programming, and peripheral functionality. The device uses standard industrial-grade packaging (PLQP0176KB-A LQFP) and incorporates thermal monitoring via on-chip temperature sensor with ±1°C accuracy - enabling runtime thermal management in enclosed enclosures or outdoor deployments.
R5F5631MDDFM#V0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 64-LQFP
- Series:
- RX600
- Packaging:
- Tray
- Product Status:
- Discontinued at Digi-Key
- 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:
- 42
- 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 1x10b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F5631MDDFM#V0 FAQ
1.How can I place an order for R5F5631MDDFM#V0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F5631MDDFM#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 R5F5631MDDFM#V0 reliable?
The price and inventory of R5F5631MDDFM#V0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F5631MDDFM#V0 is usually 5 days.
3.What payment methods are accepted for R5F5631MDDFM#V0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F5631MDDFM#V0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F5631MDDFM#V0?
R5F5631MDDFM#V0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F5631MDDFM#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 R5F5631MDDFM#V0?
For technical support, including R5F5631MDDFM#V0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F5631MDDFM#V0 requirements.
6.How does Aetrix verify that R5F5631MDDFM#V0 is sourced from the original manufacturer or authorized distributors?
All R5F5631MDDFM#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 R5F5631MDDFM#V0 meets industry standards.
7.What is the process for return or replacement of R5F5631MDDFM#V0?
All R5F5631MDDFM#V0 units undergo pre-shipment inspection (PSI). If there is an issue with R5F5631MDDFM#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 R5F5631MDDFM#V0 part is unused and in its original packaging.
Return procedure for R5F5631MDDFM#V0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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