Renesas R5F56318SDLC#U0
- Part No.:
- R5F56318SDLC#U0
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 177-TFLGA
- Datasheet:
-
R5F56318SDLC#U0.pdf
- Description:
- IC MCU 32BIT 512KB FLSH 177TFLGA
- Quantity:
- Payment:

- Shipping:

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Product details
Overview
R5F56318SDLC#U0 from Renesas is a 100 MHz 32-bit RX63N Group microcontroller featuring an integrated Ethernet MAC (10/100 Mbps), single-precision IEEE-754 FPU, 165 DMIPS performance, 512 KB on-chip flash memory, and 64 KB SRAM. It supports USB 2.0 host/function/OTG, CAN 2.0B (3 channels), 12-bit A/D (21 ch), 10-bit D/A (2 ch), RTC with battery backup, and AES encryption - deployed in industrial gateways requiring deterministic real-time control and networked I/O.
For engineers reviewing the R5F56318SDLC#U0 datasheet, R5F56318SDLC#U0 pinout, R5F56318SDLC#U0 application, or R5F56318SDLC#U0 equivalent, key selection criteria include Ethernet MAC + USB OTG coexistence, 100 MHz deterministic timing, IEC60730 safety support (CRC, IWDT, self-diagnostic ADC), and 176-pin LQFP package compatibility with industrial PCB layouts.
Technical Context
The R5F56318SDLC#U0 implements the 32-bit RX CPU core with 5-stage CISC Harvard pipeline, supporting variable-length instructions and ultra-compact code density. Its memory subsystem includes zero-wait-state 100 MHz flash (512 KB), 64 KB SRAM, and 32 KB reprogrammable data flash (100,000 erase cycles), all accessible via unified 4 GB linear address space with MPU protection.
Real-time peripheral coordination is enabled by three independent DMA controllers: 4-channel DMAC, 2-channel EXDMAC (TFT LCD optimized), and dedicated 1-channel EDMAC for Ethernet frame handling. Clock management provides independent domain scaling - ICLK up to 100 MHz, PCLK up to 50 MHz, FCLK/BCLK at 50 MHz - with PLL, HOCO, LOCO, and subclock oscillators.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | RX 32-bit CISC Harvard architecture with 5-stage pipeline, 165 DMIPS @ 100 MHz |
| Max Operating Frequency | 100 MHz system clock (ICLK), enabling deterministic real-time response ≤10 ns instruction latency |
| Flash Memory | 512 KB on-chip main flash, zero-wait-state operation at 100 MHz, supports on-board programming |
| SRAM | 64 KB zero-wait-state SRAM for instruction and operand storage, supports deep software standby backup |
| Ethernet Interface | IEEE 802.3-compliant MAC supporting 10/100 Mbps full/half-duplex, MII/RMII, Magic Packet™ wake-on-LAN |
| Analog Peripherals | 21-channel 12-bit A/D converter (1 µs/ch @ 50 MHz PCLK), 2-channel 10-bit D/A, integrated temperature sensor (±1°C) |
| Crypto & Safety | AES-128/192/256 ECB/CBC engine (DEU), CRC calculator (3 polynomials), IEC60730 self-test functions |
Pinout & Package
Package: PLQP0176KB-A - 176-pin LQFP, 24 × 24 mm, 0.5 mm pitch, RoHS compliant, rated for -40°C to +85°C operation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC / VSS | Power supply / Ground | 2.7–3.6 V core/analog supply; 133 I/O pins with 5-V tolerance on selected signals |
| XTAL / EXTAL | Main crystal oscillator input/output | Supports 4–16 MHz external crystal; enables precise 100 MHz system clock via PLL |
| ETH_MDC / ETH_MDIO | MDIO management interface | IEEE 802.3u-compliant PHY management bus for Ethernet configuration and status |
| ETH_TXD[3:0] / ETH_RXD[3:0] | Ethernet transmit/receive data | MII interface signals; RMII mode uses subset (TXD0/1, RXD0/1, TX_EN, CRS_DV) |
| USB_VBUS / USB_DP / USB_DM | USB 2.0 full-speed transceiver | Integrated PHY supports host/function/OTG; VBUS sensing enables automatic role detection |
| CAN_TX0 / CAN_RX0 | Channel 0 CAN transceiver interface | ISO 11898-1 compliant differential signaling; 32 mailbox buffers per CAN module |
Key Features
| Feature | Design Value |
|---|---|
| Ethernet + USB Coexistence | Dedicated EDMAC offloads Ethernet frame processing while USB 2.0 host/function operates concurrently without CPU contention |
| Floating-Point Performance | Single-precision IEEE-754 FPU enables real-time motor control algorithms with <1 µs trigonometric computation latency |
| IEC60730 Compliance Support | Hardware-accelerated CRC, independent watchdog timer (IWDT) with dedicated oscillator, and A/D self-diagnostic reduce functional safety certification effort |
| Flexible Clock Domain Control | Independent ICLK/PCLK/FCLK/BCLK dividers allow simultaneous high-speed CPU execution (100 MHz) and low-power peripheral operation (e.g., RTC @ 32.768 kHz) |
| Secure Firmware Updates | AES engine enables authenticated, encrypted OTA firmware loading directly into protected flash sectors |
Applications
| Industrial Ethernet Gateway | Programmable Logic Controller (PLC) I/O Module |
|---|---|
Use Scenario: Aggregating Modbus TCP, EtherNet/IP, and PROFINET fieldbus data across factory-floor sensors and actuators. IC Role / Device Role / Timing Role: Primary application processor executing protocol stacks, managing dual Ethernet ports, and synchronizing deterministic I/O scan cycles. Use Value: Integrated Ethernet MAC + USB OTG eliminates external PHY and hub ICs; 100 MHz FPU accelerates floating-point motion control math. |
Use Scenario: Compact remote I/O terminal with analog/digital signal conditioning, CAN bus connectivity, and local HMI interface. IC Role / Device Role / Timing Role: Real-time controller coordinating 12-bit A/D sampling, PWM output generation, and CAN message scheduling with sub-millisecond jitter. Use Value: On-chip 64 KB SRAM buffers sensor data during communication bursts; hardware CRC ensures integrity of configuration updates. |
| Building Automation Controller | Medical Diagnostic Equipment Interface |
Use Scenario: HVAC control unit integrating BACnet/IP, LonWorks, and RS-485 HVAC protocols with local web server and secure OTA updates. IC Role / Device Role / Timing Role: Networked application MCU handling TLS-secured HTTP, real-time temperature regulation, and non-volatile parameter storage. Use Value: AES encryption engine secures firmware and patient data; RTC with battery backup maintains time-critical scheduling during power loss. |
Use Scenario: Portable ultrasound or ECG device requiring low-noise analog front-end interfacing, waveform digitization, and USB host-based data export. IC Role / Device Role / Timing Role: Signal acquisition controller synchronizing 12-bit A/D conversion, digital filtering, and USB mass-storage-class data transfer. Use Value: 1 µs A/D conversion time enables >1 MSPS sampling; integrated USB host eliminates external bridge ICs for direct SD card read/write. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F563NEDDFC | Same RX63N Group, 2 MB flash, 256 KB SRAM, identical 176-pin LQFP package and peripheral set | Higher memory capacity supports larger protocol stacks (e.g., full TCP/IP + TLS) and firmware redundancy | Select when application requires >512 KB code space or extended data logging buffers |
| R5F563NECDFC | Same RX63N Group, 2 MB flash, 128 KB SRAM, identical package and peripherals except reduced RAM | Matches R5F56318SDLC#U0's 128 KB RAM footprint but doubles flash for future feature expansion | Choose for migration path preserving PCB layout while enabling firmware scalability |
Compared with R5F56318SDLC#U0, R5F563NEDDFC offers 4× more SRAM for complex networking stacks, while R5F563NECDFC retains identical RAM but doubles flash - both maintain pin-to-pin compatibility and identical Ethernet/USB/CAN timing behavior for seamless design reuse.
Availability
R5F56318SDLC#U0 is available at Aetrix Electronics and suitable for industrial gateways, PLC I/O modules, building automation controllers, and medical diagnostic interfaces requiring stable component supply and long-term manufacturing continuity.
Supply support for R5F56318SDLC#U0 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 RX63N Group - including R5F56318SDLC#U0 - was designed for industrial networked control applications demanding real-time determinism, functional safety compliance (IEC60730), and integrated connectivity (Ethernet + USB + CAN).
FAQ
What is the maximum operating frequency and core architecture of the R5F56318SDLC#U0?
The R5F56318SDLC#U0 operates at a maximum frequency of 100 MHz using the 32-bit RX CPU core with a 5-stage CISC Harvard pipeline. It delivers 165 DMIPS performance and includes single-precision IEEE-754 floating-point support. The core features variable-length instructions for compact code density and supports memory protection via an integrated MPU - all confirmed in the R01DS0098EJ0180 datasheet for the RX63N Group. This architecture enables deterministic real-time execution critical for industrial control applications running on the R5F56318SDLC#U0.
Does the R5F56318SDLC#U0 include an Ethernet MAC, and what standards does it support?
Yes, the R5F56318SDLC#U0 integrates a full IEEE 802.3-compliant Ethernet MAC supporting 10/100 Mbps in full- and half-duplex modes. It implements MII and RMII physical layer interfaces, Magic Packet™ wake-on-LAN, and IEEE 802.3x flow control. Unlike the RX631 Group, the RX63N Group - which includes the R5F56318SDLC#U0 - explicitly includes this Ethernet controller, as documented in Table 1.2 of the R01DS0098EJ0180 datasheet. The dedicated EDMAC offloads frame processing to preserve CPU bandwidth for application tasks.
What are the memory resources available on the R5F56318SDLC#U0?
The R5F56318SDLC#U0 includes 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 erase/write cycles. Flash supports on-board programming and is partitioned to enable secure boot and firmware update mechanisms. SRAM retains content during deep software standby when backed by VBATT. These values are specified in Table 1.1 of the R01DS0098EJ0180 datasheet and apply specifically to the R5F56318SDLC#U0 variant within the RX63N Group.
Which communication interfaces are supported by the R5F56318SDLC#U0 besides Ethernet?
Besides Ethernet, the R5F56318SDLC#U0 supports USB 2.0 full-speed host/function/OTG (with integrated transceiver), three CAN 2.0B modules (32 mailboxes each), up to 13 SCI channels (asynchronous, SPI/I²C emulation), four I²C interfaces (one FM+), three RSPI ports, one IEBus channel, and a parallel data capture unit (PDC). All are confirmed in the "Communication function" section of the R01DS0098EJ0180 datasheet. The R5F56318SDLC#U0 does not include SDRAM controller or external bus interface - features reserved for larger-pin-count RX63N variants.
Is the R5F56318SDLC#U0 suitable for IEC60730-certified applications?
Yes, the R5F56318SDLC#U0 includes multiple hardware features required for Class B IEC60730 compliance: oscillation-stop detection, hardware CRC calculator (with three polynomials), independent watchdog timer (IWDT) with dedicated LOCO clock, self-diagnostic A/D converter test mode, and memory protection unit (MPU). These are explicitly listed under "Useful functions for IEC60730 compliance" in the R01DS0098EJ0180 datasheet. The R5F56318SDLC#U0's D-version temperature range (-40°C to +85°C) also meets industrial environmental requirements for such applications.
R5F56318SDLC#U0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 177-TFLGA
- 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:
- 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 ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F56318SDLC#U0 FAQ
1.How can I place an order for R5F56318SDLC#U0 through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F56318SDLC#U0 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 R5F56318SDLC#U0 reliable?
The price and inventory of R5F56318SDLC#U0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F56318SDLC#U0 is usually 5 days.
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R5F56318SDLC#U0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F56318SDLC#U0 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 R5F56318SDLC#U0?
For technical support, including R5F56318SDLC#U0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F56318SDLC#U0 requirements.
6.How does Aetrix verify that R5F56318SDLC#U0 is sourced from the original manufacturer or authorized distributors?
All R5F56318SDLC#U0 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 R5F56318SDLC#U0 meets industry standards.
7.What is the process for return or replacement of R5F56318SDLC#U0?
All R5F56318SDLC#U0 units undergo pre-shipment inspection (PSI). If there is an issue with R5F56318SDLC#U0, 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 R5F56318SDLC#U0 part is unused and in its original packaging.
Return procedure for R5F56318SDLC#U0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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