Renesas R5F5631PDGFM#H0
- Part No.:
- R5F5631PDGFM#H0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
R5F5631PDGFM#H0.pdf
- Description:
- 32BIT MCU RX631 512K/64K LQFP64
- Quantity:
- Payment:

- Shipping:

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Product details
Overview
R5F5631PDGFM#H0 from Renesas is a 100 MHz 32-bit RX CPU-based microcontroller in the RX631 Group, featuring 512 KB on-chip flash memory, 64 KB SRAM, 32 KB data flash, IEEE-754 single-precision FPU, and integrated 10-/12-bit A/D converters - designed for industrial control and networked embedded systems requiring deterministic real-time performance without Ethernet.
For engineers reviewing the R5F5631PDGFM#H0 datasheet, R5F5631PDGFM#H0 pinout, R5F5631PDGFM#H0 application, or R5F5631PDGFM#H0 equivalent, key selection criteria include its 176-pin LQFP (PLQP0176KB-A) package, -40°C to +85°C operating range (D version), absence of Ethernet MAC/EDMAC, and support for USB 2.0 host/function, CAN v2.0B (2 channels), and up to 13 SCI interfaces.
Technical Context
The R5F5631PDGFM#H0 implements the CISC Harvard-architecture RX CPU core with 5-stage pipeline, variable-length instructions, and MPU support - enabling ultra-compact code and fast interrupt response. It executes at 165 DMIPS @ 100 MHz and integrates dual multiply-accumulate units plus a 32-bit multiplier completing operations in one cycle.
Its peripheral set excludes Ethernet controller and EDMAC (distinguishing it from RX63N), but includes full-speed USB 2.0 host/function/OTG, two CAN modules (32 mailboxes each), four I²C interfaces (1 Mbps), three RSPI channels, and hardware AES encryption (DEU) with 128/192/256-bit keys in ECB/CBC modes.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | RX 32-bit CISC Harvard with 5-stage pipeline, 165 DMIPS @ 100 MHz |
| Max Operating Frequency | 100 MHz system clock (ICLK); enables deterministic real-time execution |
| Flash Memory | 512 KB on-chip main flash, zero-wait-state access at 100 MHz |
| SRAM | 64 KB on-chip SRAM, zero-wait-state access for instruction and operand storage |
| Data Flash | 32 KB reprogrammable E² data flash (100,000 write/erase cycles) |
| A/D Converters | 21-channel 12-bit S12AD + 8-channel 10-bit AD; 1.0 µs conversion time @ PCLK=50 MHz |
| D/A Converters | 2-channel 10-bit DA output (0 V to VREFH) |
| Operating Temperature | -40°C to +85°C (D version), suitable for industrial ambient environments |
Pinout & Package
Package: PLQP0176KB-A - 176-pin LQFP, 24 mm × 24 mm, 0.5 mm pitch, RoHS-compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC / VSS | Power supply / Ground | 2.7–3.6 V core/analog supply; dedicated AVCC0 and VREFH pins enable precision analog operation |
| XTAL / EXTAL | Main crystal oscillator input/output | Supports 4–16 MHz external crystal; required for high-accuracy timing and USB clock derivation |
| RESET | Active-low reset input | Asynchronous reset assertion; compatible with external POR circuits and JTAG/FINE debug reset |
| MD0 / MD1 | Mode select pins | Configure boot mode (on-chip ROM enabled/disabled, single-chip mode) at power-on reset |
| USB_VBUS / USB_ID | USB detection inputs | Enable OTG role negotiation and VBUS presence sensing for host/peripheral auto-switching |
| TXDn / RXDn (SCI) | Asynchronous serial I/O | Up to 13 SCI channels support UART, smart-card, SPI/I²C emulation, and LIN protocol via SCId |
| TXDn / RXDn (CAN) | CAN transceiver interface | Two independent CAN modules (CAN0/CAN1) with 32 mailboxes each; support standard/extended frames per ISO 11898-1 |
| MTIOCnA / MTIOCnB | MTU2 timer I/O | 16-bit MTU2 unit provides PWM, input capture, phase counting, and A/D trigger generation across 6 channels |
Key Features
| Feature | Design Value |
|---|---|
| Floating-point unit (FPU) | IEEE-754 single-precision (32-bit) compliant; accelerates motor control, sensor fusion, and filtering algorithms |
| Memory protection unit (MPU) | Enables secure partitioning of code/data regions; critical for IEC 60730 Class B compliance and functional safety |
| Data Encryption Unit (DEU) | Hardware AES engine supporting 128/192/256-bit keys in ECB/CBC modes; offloads crypto processing from CPU |
| Low-power operation | 500 µA/MHz active current; four low-power modes (sleep, module-stop, software standby, deep software standby) |
| On-chip debugging | JTAG and FINE (2-wire) interfaces supported; compatible with Renesas E1/E20 emulators for non-intrusive trace |
| Temperature sensor | Integrated ±1°C accuracy sensor digitized by 12-bit A/D converter; enables thermal monitoring without external components |
Applications
| Industrial PLC I/O Module | Smart Energy Meter |
|---|---|
Use Scenario: Standalone distributed I/O node collecting analog/digital sensor data and executing local logic control. IC Role / Device Role / Timing Role: Main system controller managing ADC sampling, PWM motor drive, CAN fieldbus communication, and real-time task scheduling. Use Value: 100 MHz RX core ensures sub-millisecond loop times; 512 KB flash accommodates dual-bank firmware updates; 32 KB data flash stores calibration coefficients and event logs. |
Use Scenario: Residential/utility smart meter performing energy measurement, tamper detection, and HAN communication. IC Role / Device Role / Timing Role: System-on-chip integrating metrology front-end interface, secure firmware update, and Zigbee/RF mesh connectivity via SCI/USB. Use Value: Hardware DEU enables AES-128 encryption for DLMS/COSEM compliance; RTC with battery backup maintains time during mains outage; 12-bit A/D supports precision voltage/current sampling. |
| Building Automation Controller | Medical Diagnostic Peripheral |
Use Scenario: HVAC zone controller interfacing with temperature/humidity sensors, valve actuators, and BACnet MS/TP bus. IC Role / Device Role / Timing Role: Real-time coordinator handling multi-protocol serial stacks (SCI for MS/TP, I²C for sensors, CAN for actuator networks). Use Value: 13 SCI channels allow concurrent BACnet, Modbus, and proprietary protocols; 64 KB SRAM buffers protocol stacks and history logs; USB device mode enables field configuration via PC. |
Use Scenario: Portable ultrasound or ECG signal conditioner acquiring analog biosignals and preprocessing raw data before transmission. IC Role / Device Role / Timing Role: Signal acquisition processor running FIR filtering, envelope detection, and waveform compression prior to USB bulk transfer. Use Value: 12-bit A/D with sample-and-hold captures 1-MHz signals; FPU accelerates floating-point FFTs; DMA + DTC enables zero-CPU-overhead data movement from ADC to SRAM/USB buffer. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F563NEDDFC | RX63N variant with 2 MB flash, 256 KB SRAM, Ethernet MAC, and EDMAC; same 176-pin LQFP package | Required where IEEE 802.3 10/100 Mbps wired networking is mandatory (e.g., industrial gateways) | Select R5F563NEDDFC only if Ethernet PHY integration and larger memory footprint justify cost and power increase |
| R5F562TADFP | RX62T Group part: 100 MHz, 256 KB flash, 32 KB SRAM, no USB/DEU, optimized for motor control (3-phase PWM, encoder interface) | Targeted at inverter drives and servo controllers needing high-resolution timer peripherals over communications | Choose R5F562TADFP when motor control precision outweighs need for USB, CAN, or crypto acceleration |
Compared with R5F5631PDGFM#H0, R5F563NEDDFC adds Ethernet and doubles memory but increases BOM cost and power; R5F562TADFP trades communications for enhanced motor-control peripherals and lower memory - making R5F5631PDGFM#H0 optimal for balanced industrial I/O with USB/CAN/crypto.
Availability
R5F5631PDGFM#H0 is available at Aetrix Electronics and suitable for industrial automation, smart metering, and building management systems requiring stable component supply, long-term lifecycle support, and automotive-grade reliability under extended temperature operation.
Supply support for R5F5631PDGFM#H0 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 markets.
The RX631 Group is engineered for cost-sensitive, high-performance embedded control applications demanding rich peripheral integration, real-time determinism, and functional safety features - without Ethernet overhead.
FAQ
What is the maximum operating frequency and core architecture of the R5F5631PDGFM#H0?
The R5F5631PDGFM#H0 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 support. This architecture enables deterministic real-time execution essential for industrial control loops and sensor processing in the R5F5631PDGFM#H0.
Does the R5F5631PDGFM#H0 include an Ethernet controller?
No, the R5F5631PDGFM#H0 belongs to the RX631 Group, which explicitly excludes the Ethernet MAC and EDMAC peripherals present in the RX63N Group. This distinction is confirmed in Renesas documentation (R01DS0098EJ0180), where Table 1.2 shows "Ethernet controller" and "DMA controller for Ethernet" as "Not available" for all RX631 packages including the R5F5631PDGFM#H0's 176-pin LQFP variant.
What memory resources are integrated into the R5F5631PDGFM#H0?
The R5F5631PDGFM#H0 integrates 512 KB of on-chip flash memory (zero-wait-state at 100 MHz), 64 KB of SRAM (zero-wait-state), and 32 KB of reprogrammable data flash rated for 100,000 write/erase cycles. These memory resources support robust firmware storage, real-time data buffering, and non-volatile parameter retention - all critical for reliable operation in industrial applications using the R5F5631PDGFM#H0.
Which communication interfaces does the R5F5631PDGFM#H0 support?
The R5F5631PDGFM#H0 supports USB 2.0 full-speed host/function/OTG (1 port each), two CAN 2.0B modules (32 mailboxes each), up to 13 SCI channels (with UART, SPI/I²C emulation, LIN), four I²C interfaces (1 Mbps), three RSPI channels, and one IEBus channel. It lacks Ethernet and SD card interface - confirming its positioning as a high-integration, non-networked control MCU within the RX631 Group.
Is the R5F5631PDGFM#H0 suitable for IEC 60730 Class B compliance?
Yes, the R5F5631PDGFM#H0 includes multiple hardware features required for IEC 60730 Class B compliance: oscillation-stoppage detection, CRC calculator (with three polynomials), independent watchdog timer (IWDT), self-diagnostic function for the 10-bit A/D converter, and memory protection unit (MPU). These capabilities are documented in the R01DS0098EJ0180 datasheet and enable safe, certified operation in household and industrial appliances using the R5F5631PDGFM#H0.
R5F5631PDGFM#H0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 64-LQFP
- Series:
- RX631
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- -
- Core Processor:
- RX
- Core Size:
- 32-Bit
- Speed:
- 100MHz
- Connectivity:
- CANbus, EBI/EMI, Ethernet, I2C, LINbus, SCI, SPI, USB
- Peripherals:
- DMA, LVD, POR, PWM, WDT
- Number of I/O:
- 42
- Program Memory Size:
- 512KB (512K 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 ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F5631PDGFM#H0 FAQ
1.How can I place an order for R5F5631PDGFM#H0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F5631PDGFM#H0 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 R5F5631PDGFM#H0 reliable?
The price and inventory of R5F5631PDGFM#H0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F5631PDGFM#H0 is usually 5 days.
3.What payment methods are accepted for R5F5631PDGFM#H0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F5631PDGFM#H0 transactions.
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4.How is shipping managed for R5F5631PDGFM#H0?
R5F5631PDGFM#H0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F5631PDGFM#H0 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 R5F5631PDGFM#H0?
For technical support, including R5F5631PDGFM#H0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F5631PDGFM#H0 requirements.
6.How does Aetrix verify that R5F5631PDGFM#H0 is sourced from the original manufacturer or authorized distributors?
All R5F5631PDGFM#H0 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 R5F5631PDGFM#H0 meets industry standards.
7.What is the process for return or replacement of R5F5631PDGFM#H0?
All R5F5631PDGFM#H0 units undergo pre-shipment inspection (PSI). If there is an issue with R5F5631PDGFM#H0, 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 R5F5631PDGFM#H0 part is unused and in its original packaging.
Return procedure for R5F5631PDGFM#H0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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