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Renesas R5F5631ACDFP#V0
- Part No.:
- R5F5631ACDFP#V0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 100-LQFP
- Datasheet:
-
R5F5631ACDFP#V0.pdf
- Description:
- IC MCU 32BIT 768KB FLASH 100LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:2,171
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Product details
Overview
R5F5631ACDFP#V0 from Renesas is a 100 MHz 32-bit RXv1 CPU-based microcontroller in the RX631 Group, featuring 768 KB on-chip flash memory, 128 KB SRAM, 32 KB data flash, IEEE-754 single-precision FPU, and integrated 12-bit/10-bit A/D converters. It supports USB 2.0 full-speed host/function, CAN (2 channels), up to 13 SCI interfaces, I²C (4 channels), SPI (3 channels), and operates from a single 2.7–3.6 V supply across –40 to +85°C.
For engineers reviewing the R5F5631ACDFP#V0 datasheet, R5F5631ACDFP#V0 pinout, R5F5631ACDFP#V0 application, or R5F5631ACDFP#V0 equivalent, this MCU targets industrial control, building automation, and embedded HMI systems requiring deterministic real-time performance, cryptographic acceleration (AES-128/192/256), and robust peripheral integration without Ethernet - distinguishing it from RX63N variants.
Technical Context
The R5F5631ACDFP#V0 implements the RXv1 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 - critical for safety-critical IEC 60730 compliance.
Its clock system includes main crystal oscillator (4–16 MHz), internal 50 MHz HOCO and 125 kHz LOCO, PLL frequency synthesizer, and independent IWDT-dedicated oscillator. Power management features four low-power modes, RTC battery backup, and module stop capability - delivering 500 μA/MHz active current efficiency.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | RXv1 32-bit CISC Harvard, 100 MHz max, 165 DMIPS, IEEE-754 FPU, MPU support |
| Memory | 768 KB flash (no wait states @100 MHz), 128 KB SRAM, 32 KB reprogrammable data flash (100k cycles) |
| Analog Peripherals | 21-channel 12-bit A/D (1.0 μs conv.), 8-channel 10-bit A/D, 2-channel 10-bit D/A, on-chip temperature sensor (±1°C) |
| Communication | USB 2.0 full-speed host/function/OTG (1 port), CAN (2 channels, 32 mailboxes each), SCI (up to 13), I²C (4), SPI (3), IEBus (1) |
| Timers & Control | MTU2 (6 ch), TPU (12 ch), TMR (4 ch), CMT (4 ch), RTC, IWDT, PPG, POE2, and parallel data capture unit (PDC) |
| Security & Crypto | Data Encryption Unit (DEU) supporting AES-128/192/256 in ECB/CBC modes, CRC calculator (3 polynomials) |
| Supply & Temp | 2.7–3.6 V VCC/AVCC/VREFH, 2.0–3.6 V VBATT (100-pin), –40 to +85°C operating range (D version) |
Pinout & Package
Package: PLQP0100KB-A, 100-pin LQFP, 14 × 14 mm, 0.5 mm pitch, RoHS-compliant, surface-mount.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC, AVCC0, VREFH, VCC_USB | Power supply inputs | Single 2.7–3.6 V domain for digital core, analog, reference, and USB PHY - simplifies power design |
| VBATT | Battery backup supply | Enables RTC operation during main power loss (2.0–3.6 V); supports deep software standby retention |
| XTAL, EXTAL | Main crystal oscillator terminals | Supports 4–16 MHz external crystal for precise system timing and PLL input |
| RES# | Active-low reset input | Asynchronous hardware reset; compatible with open-drain push-pull drivers and RC debouncing networks |
| MD0, MD1 | Mode selection pins | Configure boot mode (ROM/ROMless), clock source, and debug interface at power-on reset |
| IRQ0–IRQ15 | External interrupt inputs | 16 dedicated edge-triggered pins with configurable priority levels for fast event response |
Key Features
| Feature | Design Value |
|---|---|
| IEC 60730 Safety Support | Oscillation-stop detection, CRC calculator, self-diagnostic A/D, IWDT, and frequency measurement - enables Class B certification |
| Flexible Clock Architecture | Independent programmable dividers/multipliers for ICLK (CPU), PCLK (peripherals), FCLK (FlashIF), BCLK (external bus) - enables fine-grained power/performance tuning |
| High-Integration Analog | Combined 12-bit (21 ch) and 10-bit (8 ch) A/D with shared sample-and-hold, plus dual 10-bit D/A - reduces external signal conditioning |
| Secure Boot & Data Protection | Unique ID (16-byte, G-version only), register write protection, and AES engine - supports secure firmware updates and data confidentiality |
| Industrial I/O Robustness | 134 total I/O pins (78 on 100-pin package), 5-V tolerant on 17 pins, open-drain outputs, pull-up resistors, and port switching - simplifies interfacing with legacy sensors and actuators |
Applications
| Industrial PLC Controller | Building Automation Gateway |
|---|---|
Use Scenario: Central logic unit in DIN-rail mounted programmable logic controllers managing discrete I/O, analog sensor inputs, and fieldbus communication. IC Role / Device Role / Timing Role: Real-time deterministic execution of ladder logic via RXv1 core, coordinated by MTU2/TPU timers and synchronized A/D sampling. Use Value: 100 MHz CPU + 500 μA/MHz efficiency enables local control loop closure without cloud dependency while maintaining thermal headroom in enclosed cabinets. |
Use Scenario: Protocol translator bridging BACnet MS/TP, Modbus RTU, and KNX over RS-485 to Ethernet/IP or Wi-Fi backhaul in HVAC systems. IC Role / Device Role / Timing Role: Dual-CAN + multiple SCI + USB host handles concurrent fieldbus stacks; DEU secures firmware OTA updates. Use Value: Integrated USB host allows direct connection to Wi-Fi modules; 768 KB flash accommodates multi-protocol stack + web server + TLS stack. |
| Embedded HMI Terminal | Medical Sensor Hub |
Use Scenario: Touch-enabled display terminal with local graphics rendering, button scanning, and serial peripheral control in factory HMIs. IC Role / Device Role / Timing Role: PDC captures parallel video from image sensors; TPU/MTU2 generate PWM for backlight dimming and touch controller timing. Use Value: On-chip 128 KB SRAM buffers frame data; 10-bit D/A drives analog gauges; 5-V tolerant I/O interfaces directly with legacy panel components. |
Use Scenario: Portable diagnostic device aggregating ECG, temperature, and SpO₂ signals with local preprocessing before BLE transmission. IC Role / Device Role / Timing Role: Simultaneous 12-bit A/D sampling across 8+ channels with hardware trigger synchronization; temperature sensor monitors die temp for calibration compensation. Use Value: ±1°C on-chip temperature sensor enables real-time ADC offset correction; AES encryption protects patient data before wireless transmission. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F563NACDFP#V0 | RX63N variant with identical pinout, 768 KB flash, 128 KB SRAM, but adds Ethernet MAC (10/100 Mbps) and extra CAN channel | Suitable where wired network connectivity or third CAN node is required - e.g., industrial gateways with EtherCAT slave support | Select R5F563NACDFP#V0 only if Ethernet or third CAN is mandatory; otherwise R5F5631ACDFP#V0 offers lower cost and reduced EMI footprint |
| R5F562TADFP#V0 | RX62T Group part, 100 MHz, 512 KB flash, 64 KB SRAM, no USB OTG or DEU, optimized for motor control (3-phase PWM, encoder interface) | Targeted at inverter drives and servo controllers needing high-resolution PWM and quadrature decoding - not suitable for USB/HMI/crypto use cases | Choose R5F562TADFP#V0 for cost-sensitive motor control; avoid for applications requiring USB host, AES, or >512 KB code space |
Compared with R5F563NACDFP#V0, the R5F5631ACDFP#V0 removes Ethernet and one CAN channel to reduce BOM cost and layout complexity while retaining full USB, crypto, and analog capability - making it optimal for non-networked embedded control. Against R5F562TADFP#V0, it trades motor-specific peripherals for broader connectivity and security, better serving HMI and gateway roles.
Availability
R5F5631ACDFP#V0 is available at Aetrix Electronics and suitable for industrial control, building automation, and embedded HMI applications requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant manufacturing.
Supply support for R5F5631ACDFP#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 IoT markets.
The RX631 Group is designed for cost-optimized, high-integration embedded control applications demanding real-time performance, functional safety support (IEC 60730), and rich peripheral sets - excluding Ethernet to target non-networked industrial endpoints.
FAQ
What is the maximum operating frequency and core architecture of the R5F5631ACDFP#V0?
The R5F5631ACDFP#V0 operates at a maximum frequency of 100 MHz using the 32-bit RXv1 CPU core with CISC Harvard architecture, 5-stage pipeline, and variable-length instruction set. It delivers 165 DMIPS and includes a single-precision IEEE-754 floating-point unit, memory protection unit (MPU), and JTAG/FINE debug interfaces - all confirmed in Renesas document R01DS0098EJ0180.
Does the R5F5631ACDFP#V0 include Ethernet functionality?
No, the R5F5631ACDFP#V0 belongs to the RX631 Group, which explicitly excludes the Ethernet MAC and associated EDMAC controller present in the RX63N Group. This distinction is documented in Table 1.2 of R01DS0098EJ0180, confirming that Ethernet is unavailable on R5F5631ACDFP#V0 - making it suitable for cost-sensitive, non-networked embedded control applications.
What are the memory resources available on the R5F5631ACDFP#V0?
The R5F5631ACDFP#V0 integrates 768 KB of on-chip flash memory (executed at 100 MHz with zero wait states), 128 KB of SRAM (also zero-wait), and 32 KB of reprogrammable data flash rated for 100,000 erase/write cycles. These values are specified in Table 1.3 of R01DS0098EJ0180 for the "R5F5631ACDFP" part number in the PLQP0100KB-A package.
Which communication interfaces does the R5F5631ACDFP#V0 support?
The R5F5631ACDFP#V0 supports USB 2.0 full-speed host/function/OTG (1 port), CAN (2 channels, 32 mailboxes each), up to 13 serial communication interfaces (SCI), 4 I²C channels (including FM+), 3 SPI channels, and 1 IEBus channel. It does not support Ethernet or a third CAN channel - differences clearly defined in the RX63N/RX631 functional comparison table (R01DS0098EJ0180, p.8).
What safety and security features are built into the R5F5631ACDFP#V0?
The R5F5631ACDFP#V0 includes IEC 60730-compliant features such as oscillation-stop detection, CRC calculator (with three polynomials), self-diagnostic A/D converter, independent watchdog timer (IWDT), and frequency measurement circuits. It also integrates a Data Encryption Unit (DEU) supporting AES-128/192/256 in ECB/CBC modes and register write protection - all verified in Sections 1.1 and 1.2 of R01DS0098EJ0180.
R5F5631ACDFP#V0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 100-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, EBI/EMI, I2C, LINbus, SCI, SPI, USB
- Peripherals:
- DMA, LVD, POR, PWM, WDT
- Number of I/O:
- 78
- 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, 14x12b; D/A 1x10b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F5631ACDFP#V0 FAQ
1.How can I place an order for R5F5631ACDFP#V0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F5631ACDFP#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 R5F5631ACDFP#V0 reliable?
The price and inventory of R5F5631ACDFP#V0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F5631ACDFP#V0 is usually 5 days.
3.What payment methods are accepted for R5F5631ACDFP#V0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F5631ACDFP#V0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F5631ACDFP#V0?
R5F5631ACDFP#V0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F5631ACDFP#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 R5F5631ACDFP#V0?
For technical support, including R5F5631ACDFP#V0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F5631ACDFP#V0 requirements.
6.How does Aetrix verify that R5F5631ACDFP#V0 is sourced from the original manufacturer or authorized distributors?
All R5F5631ACDFP#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 R5F5631ACDFP#V0 meets industry standards.
7.What is the process for return or replacement of R5F5631ACDFP#V0?
All R5F5631ACDFP#V0 units undergo pre-shipment inspection (PSI). If there is an issue with R5F5631ACDFP#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 R5F5631ACDFP#V0 part is unused and in its original packaging.
Return procedure for R5F5631ACDFP#V0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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