Renesas R5F56318DDFC#V0

Overview

R5F56318DDFC#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 industrial control, building automation gateways, and embedded HMI systems requiring real-time connectivity and deterministic I/O.

For engineers reviewing the R5F56318DDFC#V0 datasheet, R5F56318DDFC#V0 pinout, R5F56318DDFC#V0 application, or R5F56318DDFC#V0 equivalent, this MCU delivers verified Ethernet MAC (10/100 Mbps MII/RMII), full-speed USB 2.0 host/function/OTG, three CAN channels (ISO 11898-1), 13 SCI interfaces, four I²C buses (1 Mbps), and hardware AES encryption - all in a 176-pin LQFP package with 5-V-tolerant I/O and MPU support.

Technical Context

The R5F56318DDFC#V0 implements the 32-bit RX CPU core with 5-stage CISC Harvard pipeline, variable-length instructions, and dual multiply-accumulate units. It integrates dedicated peripherals including an Ethernet controller with 2 KB TX/RX FIFOs, EDMAC for descriptor-based DMA offload, and a USB 2.0 module supporting OTG via internal transceiver and 2 KB buffer RAM.

Its timing architecture includes independent clock domains: ICLK up to 100 MHz for CPU execution, PCLK up to 50 MHz for peripherals, FCLK/BCLK at 50 MHz for FlashIF/external bus, and IWDT-dedicated 125 kHz LOCO oscillator. The MCU supports four low-power modes, battery-backed RTC, and IEC60730-compliant self-test features including CRC calculator and A/D converter diagnostics.

Key Specifications

Pinout & Package

Package: PLQP0176KB-A - 176-pin LQFP, 24 × 24 mm, 0.5 mm pitch, RoHS compliant.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar 32-bit industrial MCU applications.

Compared with R5F56318DDFC#V0, the R5F563NKHDFC#V0 provides 512 KB additional flash for complex networking stacks, while the R5F56318DDFK#V0 retains identical functionality in a more robust LFBGA package - enabling thermal and mechanical optimization without firmware or schematic changes.

Availability

R5F56318DDFC#V0 is available at Aetrix Electronics and suitable for industrial Ethernet gateways, building automation controllers, and embedded HMI terminals requiring stable component supply, long-term lifecycle assurance, and traceable sourcing.

Supply support for R5F56318DDFC#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 RX63N Group - including R5F56318DDFC#V0 - was designed for real-time industrial networking applications requiring integrated Ethernet, USB, CAN, and functional safety compliance out of the box.

FAQ

What is the maximum operating frequency and core performance of the R5F56318DDFC#V0?

The R5F56318DDFC#V0 operates at a maximum frequency of 100 MHz using the 32-bit RX CPU core and delivers 165 DMIPS of performance. It includes a single-precision IEEE-754 floating-point unit and dual multiply-accumulate units, enabling efficient signal processing and real-time control tasks without external coprocessors. This performance level is sustained across its full industrial temperature range (-40 to +85°C).

Does the R5F56318DDFC#V0 include an Ethernet MAC, and what interface standards does it support?

Yes, the R5F56318DDFC#V0 integrates a full-featured Ethernet MAC compliant with IEEE 802.3, supporting both 10 and 100 Mbps operation in full- and half-duplex modes. It implements MII (Media Independent Interface) and RMII (Reduced MII) physical layer interfaces, and includes Magic Packet™ wake-on-LAN detection and IEEE 802.3x flow control - all without requiring external PHY logic beyond standard magnetics.

How much on-chip memory does the R5F56318DDFC#V0 provide, and what are its key memory features?

The R5F56318DDFC#V0 includes 1.5 MB of on-chip flash memory (executed at 100 MHz with zero wait states), 192 KB of SRAM (also zero-wait), and 32 KB of reprogrammable data flash rated for 100,000 erase/write cycles. Its memory subsystem supports background programming/erasing, MPU-protected regions, and flexible remapping for bootloader/application separation - critical for secure, field-upgradable embedded systems.

What communication peripherals are integrated into the R5F56318DDFC#V0 besides Ethernet?

In addition to Ethernet, the R5F56318DDFC#V0 integrates USB 2.0 host/function/OTG (full-speed, 12 Mbps), three CAN 2.0B modules (32 mailboxes each), 13 SCI channels (supporting UART, SPI, I²C, LIN), four I²C buses (including one FM+ capable of 1 Mbps), three RSPI interfaces, one IEBus channel, and a parallel data capture unit (PDC). This breadth enables consolidated connectivity in multi-protocol industrial nodes.

Is the R5F56318DDFC#V0 suitable for IEC60730 Class B safety-critical applications?

Yes, the R5F56318DDFC#V0 includes dedicated hardware features for IEC60730 compliance: oscillation-stop detection, hardware CRC calculator (with three polynomials), self-diagnostic A/D converter test, independent watchdog timer (IWDT) with dedicated 125 kHz oscillator, and memory protection unit (MPU). These capabilities are documented in Renesas' functional safety manual R01US0077EJ0100 and enable Class B certification without external monitoring circuitry.