Renesas R5F56318DGFB#V0

Overview

R5F56318DGFB#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, 192 KB SRAM, and 32 KB data flash. It operates from a 2.7–3.6 V supply, supports -40 to +85°C temperature range (D version), and targets industrial networking and embedded control applications requiring real-time processing and wired connectivity.

For engineers reviewing the R5F56318DGFB#V0 datasheet, R5F56318DGFB#V0 pinout, R5F56318DGFB#V0 application, or R5F56318DGFB#V0 equivalent, key selection criteria include Ethernet MAC support (MII/RMII), USB 2.0 host/function/OTG capability, CAN v2.0B compliance with 32 mailboxes, 21-channel 12-bit A/D converter with sample-and-hold, and AES-128/192/256 encryption via DEU.

Technical Context

The R5F56318DGFB#V0 implements the RX CPU core with CISC Harvard architecture, 5-stage pipeline, and variable-length instructions enabling ultra-compact code. It integrates dedicated hardware accelerators including a DMA controller (4 channels), EXDMA (2 channels), DTC, and EDMAC for Ethernet offload - all synchronized to independent clock domains (ICLK up to 100 MHz, PCLK up to 50 MHz).

Its peripheral set includes three CAN modules (ISO 11898-1 compliant), 13 SCI channels supporting asynchronous, SPI-like, and I²C-like modes, four RIIC interfaces (one FM+ at 1 Mbps), and a parallel data capture unit (PDC) for image sensor interfacing. The MCU supports IEC60730 safety functions including CRC calculation, oscillation-stop detection, and A/D self-diagnostic.

Key Specifications

Pinout & Package

Package: PLQP0144KA-A - 144-pin LQFP, 20 × 20 mm body, 0.5 mm pitch, exposed pad (thermal pad not electrically connected). Compatible with standard surface-mount reflow profiles per J-STD-020.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F56318DGFB#V0, R5F563NEDDFB offers higher memory capacity for complex protocol stacks, while R5F56317DGFB#V0 removes Ethernet hardware entirely - making it unsuitable for networked control but viable for cost-sensitive standalone controllers.

Availability

R5F56318DGFB#V0 is available at Aetrix Electronics and suitable for industrial gateways, smart metering systems, PLC I/O modules, and building automation controllers requiring stable component supply across extended product lifecycles.

Supply support for R5F56318DGFB#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, which includes R5F56318DGFB#V0, was designed specifically for industrial networking applications demanding integrated Ethernet, functional safety compliance (IEC60730), and real-time deterministic control.

FAQ

What is the maximum operating frequency and core architecture of the R5F56318DGFB#V0?

The R5F56318DGFB#V0 operates at a maximum frequency of 100 MHz and features the 32-bit RX CPU core with CISC Harvard architecture, 5-stage pipeline, and variable-length instruction set. It delivers 165 DMIPS performance and includes a single-precision IEEE-754 floating-point unit. This architecture enables efficient real-time processing for industrial control tasks while maintaining code density advantages over RISC alternatives.

Does the R5F56318DGFB#V0 support Ethernet connectivity, and what interface options are available?

Yes, the R5F56318DGFB#V0 integrates a full IEEE 802.3-compliant Ethernet MAC supporting both 10 and 100 Mbps operation in full- and half-duplex modes. It supports MII (Media Independent Interface) and RMII (Reduced MII) physical layer interfaces, along with Magic Packet™ wake-on-LAN and IEEE 802.3x flow control. The dedicated EDMAC hardware accelerator handles descriptor-based packet transfers to minimize CPU overhead during network traffic.

What are the memory resources available on the R5F56318DGFB#V0?

The R5F56318DGFB#V0 includes 1.5 MB of on-chip flash memory (accessible at 100 MHz with zero wait states), 192 KB of SRAM, and 32 KB of reprogrammable data flash rated for 100,000 erase/write cycles. Flash supports on-board programming via SWD/FINE and off-board parallel programming (for packages ≥100 pins). The memory map is linear 4 GB, with MPU support for secure partitioning of code and data regions.

Which communication interfaces does the R5F56318DGFB#V0 support besides Ethernet?

In addition to Ethernet, the R5F56318DGFB#V0 supports USB 2.0 host/function/OTG (full-speed), three ISO 11898-1-compliant CAN modules (32 mailboxes each), 13 configurable SCI channels (UART/SPI/I²C/LIN), four I²C bus interfaces (one FM+ at 1 Mbps), three RSPI ports, one IEBus channel, and a parallel data capture unit (PDC) for image sensor interfacing. All interfaces are clocked independently via programmable dividers.

Is the R5F56318DGFB#V0 suitable for safety-critical applications, and what certifications does it support?

Yes, the R5F56318DGFB#V0 includes hardware features aligned with IEC60730 Class B requirements: oscillation-stop detection, clock frequency measurement, CRC calculation engine (with three polynomials), independent watchdog timer (IWDT), and A/D converter self-diagnostic function. While the device itself is not pre-certified, these integrated capabilities significantly reduce software certification effort for household appliance and industrial control applications requiring functional safety compliance.