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Renesas R5F5631EDDFB#11
- Part No.:
- R5F5631EDDFB#11
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 144-LQFP
- Datasheet:
-
R5F5631EDDFB#11.pdf
- Description:
- 32BIT MCU RX631 2M LQFP144 -40/+
- Quantity:
- Payment:
- Shipping:
Inventory:4,425
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Product details
Overview
R5F5631EDDFB#11 from Renesas is a 100 MHz 32-bit RX631 Group microcontroller featuring a single-precision IEEE-754 FPU, 2 MB on-chip flash memory, 128 KB SRAM, and integrated 10-/12-bit A/D converters. It supports USB 2.0 full-speed host/function/OTG, CAN (ISO 11898-1), up to 13 SCI channels, and operates from a 2.7–3.6 V supply across –40 to +85°C. It targets industrial control and connected HMI applications requiring deterministic real-time performance without Ethernet.
For engineers reviewing the R5F5631EDDFB#11 datasheet, R5F5631EDDFB#11 pinout, R5F5631EDDFB#11 application, or R5F5631EDDFB#11 equivalent, key selection criteria include its 176-pin LQFP package, absence of Ethernet MAC (distinguishing it from RX63N), support for 100-MHz operation with MPU and FPU, and compatibility with Renesas E1/E20 debug interfaces.
Technical Context
The R5F5631EDDFB#11 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 debugging, and dual-clock domain operation - system clock (ICLK) up to 100 MHz and peripheral clock (PCLK) up to 50 MHz - enabling precise timing isolation for real-time peripherals.
Its peripheral set includes three CAN modules (32 mailboxes each), four I²C interfaces (one FM+), three RSPI channels, and a parallel data capture unit (PDC) supporting image sensor interfacing. The device lacks Ethernet MAC and SDRAM controller - confirmed exclusions for RX631 Group - and omits sub-clock oscillator for RTC battery backup, distinguishing it from RX63N variants.
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); enables deterministic real-time execution |
| Flash Memory | 2 MB on-chip main flash, zero-wait-state access at 100 MHz |
| SRAM | 128 KB on-chip SRAM, zero-wait-state access for instruction/operand storage |
| A/D Converters | 21-channel 12-bit S12AD + 8-channel 10-bit AD; 1.0 µs conversion time @ 50 MHz PCLK |
| D/A Converters | 2-channel 10-bit DA output, voltage range 0 V to VREFH |
| Operating Voltage | 2.7–3.6 V (VCC/AVCC0/VREFH/VCC_USB); supports single-supply industrial systems |
| Temperature Range | –40°C to +85°C (D version); qualified for industrial ambient conditions |
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 inputs | Separate analog/digital power domains; VREFH sets A/D reference voltage |
| XTAL, EXTAL | Main crystal oscillator terminals | Supports 4–16 MHz external crystal for precise system clock generation |
| RESET | Active-low reset input | Asynchronous hardware reset; triggers POR, LVD, and software-initiated resets |
| MD0, MD1 | Mode select pins | Configure boot mode (single-chip, ROM-enabled/disabled expansion) |
| IRQ0–IRQ15 | External interrupt inputs | 16 dedicated edge-triggered interrupt request lines for fast event response |
| USB_VBUS, USB_ID | USB OTG interface signals | Enable host/device role detection and VBUS monitoring per USB 2.0 specification |
| TXD0–TXD12, RXD0–RXD12 | SCI serial data I/O | 13 independent SCI channels support asynchronous, SPI/I²C emulation, LIN, and smart-card modes |
| TXD0–TXD2, RXD0–RXD2 | RSPI master/slave I/O | Three full-duplex RSPI ports with configurable bit length (8–32 bits) and double-buffered transfer |
Key Features
| Feature | Design Value |
|---|---|
| Floating-point unit (FPU) | Single-precision IEEE-754 compliant; accelerates motor control, filtering, and sensor fusion math |
| Memory Protection Unit (MPU) | Enforces privilege-level memory access boundaries; critical for IEC 60730 Class B compliance |
| Data Encryption Unit (DEU) | AES-128/192/256 encryption/decryption in ECB/CBC modes; secures firmware updates and data |
| Real-time peripherals | MTU2 (6-channel), TPU (12-channel), CMT (4-channel), and RTC with alarm/carry interrupts |
| Low-power operation | Four low-power modes (Sleep, All-module stop, Software standby, Deep software standby); 500 µA/MHz active current |
| Debug & trace | JTAG and two-wire FINE interfaces; supports Renesas E1/E20 emulators for non-intrusive real-time debugging |
Applications
| Industrial PLC I/O Module | Smart Energy Metering Gateway |
|---|---|
|
Use Scenario: Local processing of analog sensor inputs (voltage, current, temperature) and digital I/O control in DIN-rail mounted PLC modules. IC Role / Device Role / Timing Role: Central MCU executing real-time control loops, A/D sampling at ≤1 µs resolution, and CAN-based fieldbus communication. Use Value: Integrated 21-channel 12-bit A/D with sample-and-hold and programmable trigger sources eliminates external ADC, reducing BOM count and layout area. |
Use Scenario: Aggregation and preprocessing of metering data from multiple smart meters via RS485/CAN before upstream transmission. IC Role / Device Role / Timing Role: Protocol gateway MCU handling multi-interface bridging (CAN, SCI, RSPI), secure firmware updates, and RTC-synchronized logging. Use Value: Dual CAN controllers (32 mailboxes each) and AES-256 DEU enable concurrent fieldbus traffic and encrypted OTA updates without external crypto IC. |
| Human-Machine Interface (HMI) Controller | Factory Automation Edge Node |
|
Use Scenario: Touch-enabled display panel with local UI rendering, button scanning, and status LED control in packaging machinery. IC Role / Device Role / Timing Role: Application processor managing graphics buffer, touch interrupt handling, and USB host for peripheral attachment (keyboards, flash drives). Use Value: USB 2.0 full-speed host/function/OTG with 2 KB on-chip RAM buffer allows plug-and-play peripheral support without external memory. |
Use Scenario: Distributed motion controller coordinating stepper/servo drives via pulse-train outputs and encoder feedback in CNC equipment. IC Role / Device Role / Timing Role: Real-time motion sequencer generating synchronized PWM waveforms and capturing quadrature encoder counts with MTU2/TPU. Use Value: MTU2's complementary PWM mode and phase-counting capability deliver precise motor commutation timing with <100 ns jitter tolerance. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F563NEDDFB#11 | Includes Ethernet MAC, RMII/MII interface, and SDRAM controller; same 176-pin LQFP package | Required for network-connected gateways, remote I/O, or web-enabled HMIs needing TCP/IP stack offload | Select when Ethernet connectivity and external memory expansion are mandatory; adds ~$1.20 cost and design complexity |
| R5F562T7DDFB#11 | RX62T Group; 100 MHz, 512 KB flash, 64 KB RAM, no FPU, no DEU, fewer CAN channels (2×) | Suitable for cost-sensitive motor control where floating-point math is handled externally or via software libraries | Choose for simpler, lower-cost motor drive designs without security or high-precision analog requirements |
Compared with R5F5631EDDFB#11, the R5F563NEDDFB#11 adds Ethernet and SDRAM support but increases power and layout footprint, while the R5F562T7DDFB#11 reduces memory, security, and analog capability to meet tighter BOM targets - making the R5F5631EDDFB#11 optimal for balanced industrial control with integrated security and precision sensing.
Availability
R5F5631EDDFB#11 is available at Aetrix Electronics and suitable for industrial PLC I/O modules, smart energy gateways, HMI controllers, and factory automation edge nodes requiring stable component supply, long-term lifecycle assurance, and full Renesas toolchain support.
Supply support for R5F5631EDDFB#11 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 high-performance industrial control applications demanding real-time determinism, functional safety compliance (IEC 60730), and rich analog/motor control peripherals - without Ethernet overhead.
FAQ
What is the maximum operating frequency and core architecture of the R5F5631EDDFB#11?
The R5F5631EDDFB#11 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 instructions. It delivers 165 DMIPS and includes a single-precision IEEE-754 floating-point unit. This architecture enables deterministic real-time execution essential for industrial control loops and motor algorithms within the R5F5631EDDFB#11.
Does the R5F5631EDDFB#11 include an Ethernet MAC controller?
No, the R5F5631EDDFB#11 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 area, power consumption, and design complexity for applications that rely on CAN, USB, or serial fieldbuses instead of IP networking. The R5F5631EDDFB#11 retains full USB 2.0 host/function/OTG and triple CAN support.
What are the memory resources available on the R5F5631EDDFB#11?
The R5F5631EDDFB#11 integrates 2 MB of on-chip flash memory with zero-wait-state access at 100 MHz, 128 KB of zero-wait-state SRAM, and 32 KB of reprogrammable data flash rated for 100,000 erase/write cycles. These resources support complex real-time firmware, bootloader partitioning, and secure parameter storage - all without external memory, simplifying PCB layout and improving reliability in the R5F5631EDDFB#11.
Which debug interfaces does the R5F5631EDDFB#11 support?
The R5F5631EDDFB#11 supports both JTAG and two-wire FINE debugging interfaces, compatible with Renesas E1 and E20 emulators. These interfaces enable non-intrusive real-time debugging, flash programming, and trace analysis. The FINE interface reduces pin count and routing complexity compared to full JTAG, making it ideal for space-constrained industrial designs using the R5F5631EDDFB#11.
What peripheral interfaces are included in the R5F5631EDDFB#11 for industrial communication?
The R5F5631EDDFB#11 includes three CAN modules (ISO 11898-1 compliant, 32 mailboxes each), 13 SCI channels supporting asynchronous, SPI/I²C emulation, LIN, and smart-card modes, four I²C interfaces (one FM+), three RSPI ports, and USB 2.0 full-speed host/function/OTG. These interfaces provide robust, multi-protocol fieldbus connectivity - critical for interoperability in industrial networks using the R5F5631EDDFB#11.
R5F5631EDDFB#11 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 144-LQFP
- Series:
- RX631
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- -
- Core Processor:
- RX
- Core Size:
- 32-Bit
- Speed:
- 100MHz
- Connectivity:
- CANbus, EBI/EMI, I2C, LINbus, SCI, SPI, UART/USART, USB
- Peripherals:
- DMA, LVD, POR, PWM, WDT
- Number of I/O:
- 111
- Program Memory Size:
- 2MB (2M 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:
R5F5631EDDFB#11 FAQ
1.How can I place an order for R5F5631EDDFB#11 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F5631EDDFB#11 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 R5F5631EDDFB#11 reliable?
The price and inventory of R5F5631EDDFB#11 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F5631EDDFB#11 is usually 5 days.
3.What payment methods are accepted for R5F5631EDDFB#11?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F5631EDDFB#11 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F5631EDDFB#11?
R5F5631EDDFB#11 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F5631EDDFB#11 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 R5F5631EDDFB#11?
For technical support, including R5F5631EDDFB#11 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F5631EDDFB#11 requirements.
6.How does Aetrix verify that R5F5631EDDFB#11 is sourced from the original manufacturer or authorized distributors?
All R5F5631EDDFB#11 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 R5F5631EDDFB#11 meets industry standards.
7.What is the process for return or replacement of R5F5631EDDFB#11?
All R5F5631EDDFB#11 units undergo pre-shipment inspection (PSI). If there is an issue with R5F5631EDDFB#11, 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 R5F5631EDDFB#11 part is unused and in its original packaging.
Return procedure for R5F5631EDDFB#11:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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