Renesas R5F56318DGFB#H0

Overview

R5F56318DGFB#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 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 deterministic real-time response and secure connectivity.

For engineers reviewing the R5F56318DGFB#H0 datasheet, R5F56318DGFB#H0 pinout, R5F56318DGFB#H0 application, or R5F56318DGFB#H0 equivalent, this page delivers verified specifications, package mapping to PLQP0144KA-A (144-pin LQFP), confirmed Ethernet/USB/CAN interface support, and two validated alternative parts for design flexibility in cost-, feature-, or footprint-constrained scenarios.

Technical Context

The R5F56318DGFB#H0 implements the 32-bit RX CPU core with 5-stage CISC Harvard pipeline, variable-length instructions, and hardware FPU compliant with IEEE-754 single-precision standard. It integrates dedicated peripherals including an MII/RMII-capable Ethernet controller, full-speed USB 2.0 host/function/OTG module, three CAN channels (ISO 11898-1), and four I²C interfaces - all operating under independent clock domains (ICLK up to 100 MHz, PCLK up to 50 MHz).

Its memory subsystem includes 1.5 MB of zero-wait-state flash (100 MHz read), 192 KB of zero-wait-state SRAM, and 32 KB reprogrammable data flash (100,000 erase/write cycles). Power management features four low-power modes, RTC with battery backup, and voltage monitoring circuitry supporting IEC 60730 safety compliance.

Key Specifications

Pinout & Package

Package: PLQP0144KA-A - 144-pin Low-profile Quad Flat Package, 20 × 20 mm body, 0.5 mm pitch, exposed thermal pad, RoHS-compliant.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar microcontroller applications.

Compared with R5F56318DGFB#H0, R5F563NKHDFB offers greater firmware headroom while maintaining identical I/O and peripheral compatibility, whereas R5F563NECDFB trades RAM capacity for lower unit cost-both remain drop-in alternatives in the same 144-pin LQFP footprint with no PCB redesign needed.

Availability

R5F56318DGFB#H0 is available at Aetrix Electronics and suitable for industrial Ethernet gateways, building automation controllers, and secure embedded HMIs requiring stable component supply, long-term lifecycle assurance, and traceable sourcing for ISO 9001-certified production.

Supply support for R5F56318DGFB#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, which includes R5F56318DGFB#H0, was designed specifically for industrial networking applications demanding integrated Ethernet, functional safety compliance (IEC 60730), and real-time determinism in harsh environments.

FAQ

What is the maximum operating frequency and core architecture of the R5F56318DGFB#H0?

The R5F56318DGFB#H0 operates at a maximum frequency of 100 MHz using the 32-bit RX CPU core with a 5-stage CISC Harvard pipeline, delivering 165 DMIPS and supporting IEEE-754 single-precision floating-point operations. Its architecture includes variable-length instructions, hardware multiplier/divider, and memory protection unit (MPU) for robust embedded execution.

Does the R5F56318DGFB#H0 support Ethernet connectivity, and what interface standards does it implement?

Yes, the R5F56318DGFB#H0 integrates a full-featured Ethernet MAC supporting both 10 and 100 Mbps operation in full- and half-duplex modes. It implements IEEE 802.3u-compliant MII and RMII physical layer interfaces, along with flow control (IEEE 802.3x) and Magic Packet™ wake-on-LAN functionality - all managed via its dedicated EDMAC peripheral.

What are the memory resources available on the R5F56318DGFB#H0?

The R5F56318DGFB#H0 provides 1.5 MB of on-chip flash memory (zero-wait-state at 100 MHz), 192 KB of zero-wait-state SRAM, and 32 KB of reprogrammable data flash rated for 100,000 erase/write cycles. The SRAM supports backup during deep software standby, and the flash supports both on-board and off-board (parallel programmer) programming methods.

Which communication interfaces are integrated into the R5F56318DGFB#H0 besides Ethernet?

In addition to Ethernet, the R5F56318DGFB#H0 integrates USB 2.0 host/function/OTG, three ISO 11898-1-compliant CAN channels (32 mailboxes each), 13 serial communications interfaces (SCI) with flexible mode selection, four I²C buses (one FM+), three SPI channels, and one IEBus interface - enabling comprehensive multi-protocol connectivity in a single chip.

Is the R5F56318DGFB#H0 suitable for safety-critical applications, and what certifications does it support?

Yes, the R5F56318DGFB#H0 includes hardware features required for IEC 60730 Class B compliance, including oscillation-stop detection, CRC calculator, independent watchdog timer (IWDT), self-diagnostic A/D functionality, and memory protection unit (MPU). These capabilities enable certified safe operation in industrial control and building automation systems without requiring external safety monitors.