Renesas R5F56318DGFC#V0
- Part No.:
- R5F56318DGFC#V0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 176-LQFP
- Datasheet:
-
R5F56318DGFC#V0.pdf
- Description:
- 32BIT MCU RX631
- Quantity:
- Payment:

- Shipping:

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Product details
Overview
R5F56318DGFC#V0 from Renesas is a 100 MHz 32-bit RX63N Group microcontroller with integrated Ethernet MAC, single-precision IEEE-754 FPU, 165 DMIPS performance, 1.5 MB on-chip flash memory, and 192 KB SRAM. It operates from a 2.7–3.6 V supply, supports -40 to +85°C industrial temperature range, and targets networked embedded control applications requiring real-time processing, secure communication, and deterministic I/O.
For engineers reviewing the R5F56318DGFC#V0 datasheet, R5F56318DGFC#V0 pinout, R5F56318DGFC#V0 application, or R5F56318DGFC#V0 equivalent, this MCU delivers verified Ethernet MAC (10/100 Mbps), full-speed USB 2.0 host/function/OTG, three CAN channels, 12-bit A/D (21 ch), 10-bit D/A (2 ch), AES encryption (DEU), and RTC with battery backup - all in a 176-pin LQFP package with 0.5 mm pitch.
Technical Context
The R5F56318DGFC#V0 implements the 32-bit RX CPU core with 5-stage CISC Harvard pipeline, variable-length instructions, and hardware FPU supporting IEEE-754 single-precision arithmetic. It integrates dedicated peripherals including an Ethernet controller (MII/RMII), USB 2.0 host/function module with OTG capability, and three ISO 11898-1-compliant CAN modules with 32 mailboxes each.
Its clock system includes main/sub oscillators, PLL, and on-chip HOCO/LOCO sources, enabling independent domain clocking (ICLK up to 100 MHz, PCLK up to 50 MHz). Power management features four low-power modes, module stop control, and battery-backed RTC operation down to 2.3 V on VBATT.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | RX 32-bit CPU, 100 MHz max, 165 DMIPS - enables real-time deterministic execution of complex control algorithms |
| Memory | 1.5 MB flash (no wait states @ 100 MHz), 192 KB SRAM, 32 KB data flash - supports large firmware images and runtime data buffering |
| Connectivity | Ethernet MAC (10/100 Mbps, MII/RMII), USB 2.0 host/function/OTG, 3× CAN, 13× SCI, 4× RIIC, 3× RSPI - enables multi-protocol industrial networking |
| Analog | 21-channel 12-bit A/D (1 µs conversion), 8-channel 10-bit A/D, 2-channel 10-bit D/A, on-die temperature sensor (±1°C) - supports precision sensor interfacing and closed-loop control |
| Security & Timing | AES-128/192/256 (ECB/CBC) via DEU, RTC with calendar/alarm/time-capture, IWDT with dedicated LOCO clock - meets IEC 60730 Class B requirements |
| Package & Environment | LQFP-176 (PLQP0176KB-A, 24 × 24 mm, 0.5 mm pitch), -40 to +85°C operating range - compatible with standard SMT assembly and industrial thermal profiles |
Pinout & Package
Package: PLQP0176KB-A, 176-pin LQFP, 24 × 24 mm body, 0.5 mm pitch, exposed pad (thermal enhancement).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC / VSS | Power supply / Ground | 13 primary VCC/VSS pairs distributed across perimeter for low-noise power delivery and EMI suppression |
| XTAL / EXTAL | Main crystal oscillator input/output | Supports 4–16 MHz external crystal; enables precise timing for Ethernet, USB, and RTC synchronization |
| ETH_MDC / ETH_MDIO | Ethernet management interface | IEEE 802.3-compliant MDIO bus for PHY configuration and status monitoring |
| ETH_TXD0–3 / ETH_RXD0–3 | Ethernet data lanes | MII mode: 8-bit parallel TX/RX paths; RMII mode: reduced 2-lane interface with shared reference clock |
| USB_VBUS / USB_DP / USB_DM | USB 2.0 physical interface | Full-speed (12 Mbps) differential signaling; VBUS sensing enables host/device role negotiation and OTG switching |
| CAN0_TX / CAN0_RX | Channel 0 CAN transceiver interface | Direct connection to external CAN transceiver; supports ISO 11898-1 standard frame and extended frame formats |
Key Features
| Feature | Design Value |
|---|---|
| Integrated Ethernet MAC | 10/100 Mbps MII/RMII support with Magic Packet™ wake-on-LAN and IEEE 802.3x flow control - eliminates need for external MAC or PHY glue logic |
| Dual-domain clocking | Independent ICLK (CPU, up to 100 MHz), PCLK (peripherals, up to 50 MHz), FCLK (FlashIF), BCLK (external bus) - enables precise timing isolation for mixed-criticality tasks |
| Hardware AES engine (DEU) | ECB/CBC mode with 128/192/256-bit keys - accelerates secure boot, firmware update authentication, and encrypted data logging without CPU overhead |
| Multi-channel timer subsystem | MTU2 (6 ch), TPU (12 ch), CMT (4 ch), TMR (4 ch) - supports simultaneous PWM generation, encoder counting, capture-based event timing, and baud-rate generation for 13 SCI channels |
| IEC 60730 compliance support | Built-in oscillation-stop detection, CRC calculator, self-diagnostic A/D, IWDT, and register write protection - reduces certification effort for safety-critical appliances and industrial controls |
Applications
| Industrial Ethernet Gateway | Smart Energy Meter |
|---|---|
Use Scenario: Protocol translation between Modbus RTU field devices and cloud-connected Ethernet backbone. IC Role / Device Role / Timing Role: Central real-time controller executing TCP/IP stack, Modbus parsing, and deterministic I/O scanning. Use Value: Integrated Ethernet MAC and 13 SCI interfaces eliminate external bridge ICs; 100 MHz RX core ensures sub-10 ms cycle times under full protocol load. |
Use Scenario: Revenue-grade metering with tamper detection, waveform analysis, and remote firmware updates over cellular/Ethernet. IC Role / Device Role / Timing Role: Secure metering SoC managing metrology ADC sampling, AES-encrypted data storage, and time-synchronized event logging. Use Value: On-chip 12-bit A/D (21 ch) captures voltage/current waveforms at 1 MSps; DEU enables FIPS-compliant firmware signing; RTC maintains billing accuracy during power loss. |
| Programmable Logic Controller (PLC) I/O Module | Building Automation Controller |
Use Scenario: DIN-rail mounted I/O expansion module with digital input/output, analog input, and CAN bus connectivity. IC Role / Device Role / Timing Role: Deterministic peripheral manager handling high-speed GPIO toggling, PWM output, and synchronized A/D acquisition. Use Value: 134 general-purpose I/O pins with 5-V tolerance simplify interface to legacy sensors/actuators; MTU2/TPU timers enable precise 1 µs-resolution pulse generation and encoder feedback decoding. |
Use Scenario: HVAC controller integrating BACnet/IP over Ethernet, LonWorks over IEBus, and local UI via SPI-driven display. IC Role / Device Role / Timing Role: Multi-protocol convergence hub managing concurrent Ethernet, CAN, IEBus, and RSPI interfaces with shared memory resources. Use Value: Four independent communication controllers (ETHERC, USBa, CAN, IEB) allow simultaneous protocol stacks; 192 KB SRAM buffers multiple protocol frame queues without external memory. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 32-bit industrial MCU applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F563NKHDFC | Same RX63N Group, identical 176-pin LQFP package, 2 MB flash / 192 KB SRAM - higher flash capacity but same peripheral set and pinout | Preferred when firmware image size exceeds 1.5 MB or future-proofing for feature expansion is required | Select R5F563NKHDFC if additional flash headroom is needed without changing PCB layout or driver software |
| R5F563NECDFC | Same package and speed, but 2 MB flash / 128 KB SRAM - reduced RAM versus R5F56318DGFC#V0's 192 KB, otherwise identical peripherals | Suitable for applications prioritizing code space over runtime data buffering (e.g., fixed-function gateways) | Choose R5F563NECDFC only if application memory footprint fits within 128 KB SRAM and flash >2 MB is essential |
Compared with R5F56318DGFC#V0, R5F563NKHDFC offers 512 KB more flash without sacrificing RAM or altering pin compatibility, while R5F563NECDFC trades 64 KB SRAM for larger flash - making R5F56318DGFC#V0 the optimal balance of program storage, runtime memory, and peripheral integration for mid-complexity industrial controllers.
Availability
R5F56318DGFC#V0 is available at Aetrix Electronics and suitable for industrial automation, smart metering, and building control systems requiring stable component supply, long-term lifecycle assurance, and qualified automotive-grade traceability.
Supply support for R5F56318DGFC#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 RX63N Group, which includes R5F56318DGFC#V0, was designed for real-time industrial control applications demanding integrated Ethernet, functional safety support, and deterministic multi-protocol connectivity - targeting PLCs, HMIs, and networked energy infrastructure.
FAQ
What is the maximum operating frequency and core architecture of the R5F56318DGFC#V0?
The R5F56318DGFC#V0 operates at a maximum frequency of 100 MHz using the 32-bit RX CPU core with a 5-stage CISC Harvard pipeline, variable-length instructions, and hardware floating-point unit compliant with IEEE-754 single-precision standard. This architecture delivers 165 DMIPS performance and supports deterministic real-time execution critical for industrial control loops.
Does the R5F56318DGFC#V0 include an Ethernet MAC, and what interface standards does it support?
Yes, the R5F56318DGFC#V0 includes a fully integrated Ethernet MAC supporting both MII and RMII physical layer interfaces per IEEE 802.3u, with 10/100 Mbps operation, full/half-duplex modes, IEEE 802.3x flow control, and Magic Packet™ wake-on-LAN detection - eliminating the need for external MAC or PHY components in networked device designs.
What are the memory resources available on the R5F56318DGFC#V0?
The R5F56318DGFC#V0 provides 1.5 MB of on-chip flash memory (zero wait states at 100 MHz), 192 KB of SRAM (zero wait states), and 32 KB of reprogrammable data flash rated for 100,000 erase/write cycles. These resources support large real-time OS images, protocol stacks, and buffered data logging without external memory expansion.
Which communication interfaces are integrated into the R5F56318DGFC#V0?
The R5F56318DGFC#V0 integrates Ethernet MAC, USB 2.0 host/function/OTG, three CAN 2.0B modules (32 mailboxes each), 13 serial communication interfaces (SCI), four I2C buses (one FM+), three RSPI channels, one IEBus channel, and a parallel data capture unit (PDC) - enabling seamless multi-protocol connectivity in industrial edge devices.
What safety and security features does the R5F56318DGFC#V0 provide for industrial applications?
The R5F56318DGFC#V0 includes hardware AES encryption/decryption (DEU) with 128/192/256-bit keys, memory protection unit (MPU), register write protection, oscillation-stop detection, CRC calculator, independent watchdog timer (IWDT) with dedicated LOCO clock, and self-diagnostic A/D functions - collectively supporting IEC 60730 Class B compliance for safety-critical embedded systems.
R5F56318DGFC#V0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 176-LQFP
- Series:
- RX600
- 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:
- 133
- Program Memory Size:
- 512KB (512K 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 ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F56318DGFC#V0 FAQ
1.How can I place an order for R5F56318DGFC#V0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F56318DGFC#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 R5F56318DGFC#V0 reliable?
The price and inventory of R5F56318DGFC#V0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F56318DGFC#V0 is usually 5 days.
3.What payment methods are accepted for R5F56318DGFC#V0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F56318DGFC#V0 transactions.
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4.How is shipping managed for R5F56318DGFC#V0?
R5F56318DGFC#V0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F56318DGFC#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 R5F56318DGFC#V0?
For technical support, including R5F56318DGFC#V0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F56318DGFC#V0 requirements.
6.How does Aetrix verify that R5F56318DGFC#V0 is sourced from the original manufacturer or authorized distributors?
All R5F56318DGFC#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 R5F56318DGFC#V0 meets industry standards.
7.What is the process for return or replacement of R5F56318DGFC#V0?
All R5F56318DGFC#V0 units undergo pre-shipment inspection (PSI). If there is an issue with R5F56318DGFC#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 R5F56318DGFC#V0 part is unused and in its original packaging.
Return procedure for R5F56318DGFC#V0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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