Renesas R5F56318DGFP#H0

Overview

R5F56318DGFP#H0 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, and targets industrial networking and embedded control applications requiring deterministic real-time response and secure connectivity.

For engineers reviewing the R5F56318DGFP#H0 datasheet, R5F56318DGFP#H0 pinout, R5F56318DGFP#H0 application, or R5F56318DGFP#H0 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 R5F56318DGFP#H0 implements the CISC Harvard-architecture RX CPU core with 5-stage pipeline, variable-length instructions, and memory protection unit (MPU). It integrates dedicated hardware accelerators including a DMA controller (4 channels), EXDMA (2 channels), DTC, and EDMAC for Ethernet offload - enabling zero-copy frame handling with 2 KB TX/RX FIFOs.

Its clock system combines external crystal oscillator (4–16 MHz), internal HOCO (50 MHz), LOCO (125 kHz), and PLL for independent domain scaling: ICLK up to 100 MHz, PCLK up to 50 MHz, FCLK/BCLK up to 50 MHz. Real-time operation is reinforced by RTC with battery backup, IWDT with dedicated oscillator, and IEC60730-compliant self-diagnostic features including CRC calculator and A/D converter diagnostics.

Key Specifications

Pinout & Package

Package: PLQP0100KB-A - 100-pin LQFP, 14 × 14 mm body, 0.5 mm pitch, exposed pad (thermal enhancement), RoHS compliant.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F56318DGFP#H0, R5F5631ADGFP#H0 offers higher memory headroom for complex industrial protocols, while R5F56308DGFP#H0 removes Ethernet and USB to lower cost - making the R5F56318DGFP#H0 the optimal balance of connectivity, security, and memory for mid-tier industrial gateways.

Availability

R5F56318DGFP#H0 is available at Aetrix Electronics and suitable for industrial Ethernet gateways, secure PLC controllers, smart energy meter hubs, and medical diagnostic interfaces requiring stable component supply and long-term manufacturability.

Supply support for R5F56318DGFP#H0 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 R5F56318DGFP#H0, was designed for industrial automation and networking applications demanding real-time determinism, functional safety, and integrated connectivity - especially where Ethernet, USB, and CAN coexist in a single controller.

FAQ

What is the maximum operating frequency and core architecture of the R5F56318DGFP#H0?

The R5F56318DGFP#H0 operates at a maximum frequency of 100 MHz and uses the 32-bit RX CPU core with CISC Harvard architecture, 5-stage pipeline, and variable-length instructions. It delivers 165 DMIPS performance and includes a single-precision IEEE-754 floating-point unit. This architecture enables efficient code density and deterministic interrupt response critical for real-time industrial control tasks executed by the R5F56318DGFP#H0.

Does the R5F56318DGFP#H0 support Ethernet connectivity, and what interface standards does it implement?

Yes, the R5F56318DGFP#H0 integrates a full-featured Ethernet MAC supporting both 10 Mbps and 100 Mbps operation in full- and half-duplex modes. It complies with IEEE 802.3 and supports MII (Media Independent Interface) and RMII (Reduced MII) physical layer interfaces. The dedicated EDMAC hardware accelerator handles descriptor-based frame transmission and reception, reducing CPU overhead - a key capability distinguishing the R5F56318DGFP#H0 from non-Ethernet RX631 variants.

What are the memory resources available on the R5F56318DGFP#H0?

The R5F56318DGFP#H0 includes 1.5 MB of on-chip flash memory (with zero wait states at 100 MHz), 192 KB of SRAM (also zero wait states), and 32 KB of reprogrammable data flash rated for 100,000 erase/write cycles. These memory resources support complex firmware images, real-time data buffers, and non-volatile parameter storage - all essential for robust operation of industrial systems built around the R5F56318DGFP#H0.

How does the R5F56318DGFP#H0 ensure functional safety and security compliance?

The R5F56318DGFP#H0 incorporates multiple IEC60730 Class B compliance features including oscillation-stop detection, CRC calculator (with three selectable polynomials), independent watchdog timer (IWDT) with dedicated oscillator, and self-diagnostic functions for the A/D converter. Its Data Encryption Unit (DEU) supports AES-128/192/256 encryption in ECB/CBC modes, enabling secure firmware updates and data confidentiality - critical capabilities for certified industrial devices using the R5F56318DGFP#H0.

What package type and pin count does the R5F56318DGFP#H0 use, and is it RoHS compliant?

The R5F56318DGFP#H0 is housed in a 100-pin LQFP package designated PLQP0100KB-A, measuring 14 × 14 mm with 0.5 mm pitch and an exposed thermal pad. It is RoHS compliant and rated for industrial temperature range (-40 to +85°C). This package provides full access to all peripherals including Ethernet, USB, CAN, and multiple serial interfaces - making it the standard footprint for mid-range RX63N designs such as those based on the R5F56318DGFP#H0.