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Renesas R5F5631ACDFC#V0
- Part No.:
- R5F5631ACDFC#V0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 176-LQFP
- Datasheet:
-
R5F5631ACDFC#V0.pdf
- Description:
- IC MCU 32BIT 768KB FLSH 176LFQFP
- Quantity:
- Payment:
- Shipping:
Inventory:3,460
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Product details
Overview
R5F5631ACDFC#V0 from Renesas is a 100 MHz, 32-bit RX CPU core microcontroller in the RX631 Group, featuring 768 KB on-chip flash memory, 128 KB SRAM, 32 KB data flash, and integrated 12-bit/10-bit A/D converters, 10-bit D/A converters, RTC, and USB 2.0 function controller - but no Ethernet MAC or CAN modules. It targets cost-optimized industrial control and sensor interface applications requiring deterministic real-time performance without network connectivity.
For engineers reviewing the R5F5631ACDFC#V0 datasheet, R5F5631ACDFC#V0 pinout, R5F5631ACDFC#V0 application, or R5F5631ACDFC#V0 equivalent, this page delivers verified specifications, package mapping to PLQP0176KB-A (176-pin LQFP), confirmed peripheral channel counts per package, functional boundaries versus RX63N, and two validated alternative parts for design continuity.
Technical Context
The R5F5631ACDFC#V0 implements the RXv1 CPU core with Harvard architecture, 5-stage pipeline, and IEEE-754 single-precision FPU - delivering 165 DMIPS at 100 MHz. It supports little-endian data and instruction ordering, 4-Gbyte linear address space, and MPU-based memory protection.
Its clock system integrates PLL, HOCO (50 MHz), LOCO (125 kHz), and subclock oscillator support, with independent frequency division for ICLK (up to 100 MHz), PCLK (up to 50 MHz), FCLK (up to 50 MHz), and BCLK (up to 50 MHz). The device operates from a single 2.7–3.6 V supply and supports four low-power modes including deep software standby with SRAM retention.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | RXv1 32-bit CISC core with 5-stage pipeline, 165 DMIPS @ 100 MHz |
| Max Operating Frequency | 100 MHz system clock (ICLK), enabling deterministic real-time execution |
| Flash Memory | 768 KB on-chip main flash, zero-wait-state access at 100 MHz |
| SRAM | 128 KB on-chip SRAM, zero-wait-state access, supports backup in deep standby |
| Data Flash | 32 KB reprogrammable E² data flash, rated for 100,000 erase/write cycles |
| A/D Converter | 21-channel 12-bit S12AD + 8-channel 10-bit AD, 1.0 µs conversion time @ 50 MHz PCLK |
| D/A Converter | 2-channel 10-bit DA output, voltage range 0 V to VREFH |
| USB Interface | Full-speed USB 2.0 function controller only (no host/OTG), 2 KB on-chip RAM buffer |
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 / VSS | Power supply / Ground | 176-pin LQFP has 12 dedicated VCC and 12 VSS pins for noise-suppressed power delivery |
| XTAL / EXTAL | Main crystal oscillator input/output | Supports 4–16 MHz external crystal; required for precise timing and PLL reference |
| RESET | Active-low reset input | Asynchronous reset pin with internal pull-up; triggers POR, LVD, and software-initiated resets |
| MD0 / MD1 | Mode selection inputs | Configure boot mode (single-chip, ROM-enabled/disabled expansion) at power-on |
| USB_VBUSEN / USB_ID | USB detection signals | Enable USB transceiver and detect OTG role; R5F5631ACDFC#V0 uses USB_ID for function-only operation |
| AN000–AN020 | Analog input channels | 21 dedicated pins for 12-bit A/D; AN000–AN013 available in 176-pin package per Table 1.2 |
Key Features
| Feature | Design Value |
|---|---|
| Floating-point unit (FPU) | IEEE-754 single-precision hardware accelerator enables real-time math in motor control and sensor fusion |
| Memory Protection Unit (MPU) | Configurable region-based access control prevents unintended code/data corruption in multitask environments |
| Background Operation (BGO) | Data flash programming/erasing proceeds concurrently with CPU execution - no firmware stall |
| Real-time Clock (RTC) | Calendar/clock with alarm, periodic interrupt, and time-capture; battery-backed via VBATT pin |
| Temperature Sensor | On-die ±1°C accuracy sensor digitized by 12-bit A/D - enables thermal monitoring without external components |
| IEBus Interface | Single-channel IEBus compliant with ISO 9241-110; supports automotive body electronics communication |
Applications
| Industrial PLC I/O Module | Smart Sensor Node |
|---|---|
Use Scenario: Compact programmable logic controller module handling analog inputs, digital I/O, and serial fieldbus communication. IC Role / Device Role / Timing Role: Central MCU executing ladder logic, managing 21-channel analog acquisition, and driving RS-485 SCI interfaces. Use Value: Integrated 12-bit A/D with sample-and-hold and programmable trigger sources eliminate external signal conditioning; 128 KB SRAM accommodates runtime variables and firmware overlays. |
Use Scenario: Battery-powered environmental sensor node measuring temperature, humidity, and pressure with local processing and USB configuration. IC Role / Device Role / Timing Role: System-on-chip controller performing sensor readout, calibration, data logging to data flash, and USB parameter upload. Use Value: On-die temperature sensor + 12-bit A/D reduces BOM count; 32 KB data flash enables 100,000-cycle firmware updates and event logging without external EEPROM. |
| USB Human Interface Device (HID) | Home Appliance Control Panel |
Use Scenario: Touch-button control panel with LED feedback, connected to PC via USB for configuration and diagnostics. IC Role / Device Role / Timing Role: USB function controller managing HID report descriptors, button scan via GPIO, and PWM-driven LED dimming. Use Value: Dedicated USB 2.0 function controller with 2 KB RAM buffer ensures reliable enumeration and report transfer; 10-bit D/A channels drive analog LED current control. |
Use Scenario: Front-panel controller for washing machine or HVAC system, interfacing with rotary encoders, displays, and relays. IC Role / Device Role / Timing Role: Real-time coordinator of user input (SCI/IEBus), display update (SPI), relay timing (MTU2 PWM), and safety monitoring (CRC, IWDT). Use Value: Independent watchdog timer (IWDT) with dedicated LOCO clock guarantees fail-safe shutdown; CRC calculator validates firmware integrity per IEC 60730 Class B requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F5631BCDFC#V0 | Same package and pinout; 1 MB flash, 128 KB SRAM, identical peripherals | Higher flash capacity supports larger protocol stacks or dual-bank firmware updates | Select when firmware size exceeds 768 KB or future scalability is required |
| R5F5630ACDFC#V0 | Same RX631 Group, 768 KB flash, 64 KB SRAM, no USB function controller | Lacks USB interface; reduced SRAM limits complex state machines or buffering | Choose for ultra-cost-sensitive designs where USB is unnecessary and memory footprint is minimal |
Compared with R5F5631ACDFC#V0, R5F5631BCDFC#V0 offers headroom for feature expansion without layout change, while R5F5630ACDFC#V0 trades USB and SRAM for lower unit cost - making all three suitable for tiered product families sharing common PCB design.
Availability
R5F5631ACDFC#V0 is available at Aetrix Electronics and suitable for industrial PLC I/O modules, smart sensor nodes, USB HID devices, and home appliance control panels requiring stable component supply, long-term lifecycle assurance, and traceable sourcing.
Supply support for R5F5631ACDFC#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 IoT markets.
The RX631 Group is designed for cost-conscious, high-reliability embedded applications demanding real-time performance, integrated analog peripherals, and functional safety support - without Ethernet or CAN overhead.
FAQ
Does R5F5631ACDFC#V0 include an Ethernet MAC controller?
No, R5F5631ACDFC#V0 belongs to the RX631 Group, which excludes the Ethernet MAC and EDMAC modules present in the RX63N Group. This distinction is explicitly documented in Renesas' R01DS0098EJ0180 datasheet Section 1.2 and Table 1.2. Applications requiring Ethernet must select an RX63N part such as R5F563NECDFC#V0.
What is the maximum number of SCI channels supported by R5F5631ACDFC#V0?
R5F5631ACDFC#V0 supports up to 11 SCI channels (SCIc: channels 0–3, 5, 6, 8, 9; SCId: channel 12) in its 176-pin LQFP package, as confirmed in Table 1.2 of the R01DS0098EJ0180 datasheet. Channel availability is package-dependent - fewer channels are enabled in smaller packages like 100-pin or 64-pin variants.
Is the R5F5631ACDFC#V0 pin-compatible with other RX631 Group MCUs in the same package?
Yes, R5F5631ACDFC#V0 is fully pin-compatible with all other RX631 Group devices in the PLQP0176KB-A package (e.g., R5F5631BCDFC#V0, R5F5630ACDFC#V0), sharing identical pin functions, electrical characteristics, and mechanical footprint - enabling drop-in replacement for flash/RAM scaling.
What debug interfaces does R5F5631ACDFC#V0 support?
R5F5631ACDFC#V0 supports both JTAG and FINE (two-wire) debugging interfaces, compatible with Renesas E1 and E20 emulators. These interfaces enable full-featured on-chip debugging, flash programming, and real-time trace - critical for development of safety-certified firmware.
Does R5F5631ACDFC#V0 support IEC 60730 Class B compliance features?
Yes, R5F5631ACDFC#V0 includes multiple hardware features for IEC 60730 Class B: oscillation-stoppage detection, frequency measurement (MCK), CRC calculator, independent watchdog timer (IWDT), and self-diagnostic capability for the 10-bit A/D converter - all documented in the "Useful functions for IEC60730 compliance" section of R01DS0098EJ0180.
R5F5631ACDFC#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:
- 768KB (768K 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:
R5F5631ACDFC#V0 FAQ
1.How can I place an order for R5F5631ACDFC#V0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F5631ACDFC#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 R5F5631ACDFC#V0 reliable?
The price and inventory of R5F5631ACDFC#V0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F5631ACDFC#V0 is usually 5 days.
3.What payment methods are accepted for R5F5631ACDFC#V0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F5631ACDFC#V0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F5631ACDFC#V0?
R5F5631ACDFC#V0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F5631ACDFC#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 R5F5631ACDFC#V0?
For technical support, including R5F5631ACDFC#V0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F5631ACDFC#V0 requirements.
6.How does Aetrix verify that R5F5631ACDFC#V0 is sourced from the original manufacturer or authorized distributors?
All R5F5631ACDFC#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 R5F5631ACDFC#V0 meets industry standards.
7.What is the process for return or replacement of R5F5631ACDFC#V0?
All R5F5631ACDFC#V0 units undergo pre-shipment inspection (PSI). If there is an issue with R5F5631ACDFC#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 R5F5631ACDFC#V0 part is unused and in its original packaging.
Return procedure for R5F5631ACDFC#V0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
R5F5631ACDFC#V0 Tags
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