Renesas R5F56318SDFB#V0

Overview

R5F56318SDFB#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 temperature range, and targets industrial networking and embedded control applications requiring real-time communication and deterministic timing.

For engineers reviewing the R5F56318SDFB#V0 datasheet, R5F56318SDFB#V0 pinout, R5F56318SDFB#V0 application, or R5F56318SDFB#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, 12-bit A/D converter with 21 channels, and hardware AES encryption via DEU module.

Technical Context

The R5F56318SDFB#V0 implements the RX CPU core with CISC Harvard architecture, 5-stage pipeline, and variable-length instructions enabling ultra-compact code density. It integrates dedicated peripherals including an Ethernet controller (ETHERC) with EDMAC DMA engine, USB 2.0 host/function module (USBa), and three CAN modules - all operating under independent clock domains (ICLK up to 100 MHz, PCLK up to 50 MHz).

Its memory subsystem includes no-wait-state 100 MHz flash (1.5 MB), 192 KB SRAM, and 32 KB reprogrammable data flash supporting background operation. The MCU features dual A/D converters (12-bit ×21 ch, 10-bit ×8 ch), two 10-bit D/A channels, RTC with battery backup, and a temperature sensor calibrated to ±1°C accuracy.

Key Specifications

Pinout & Package

Package: PLQP0144KA-A, 144-pin LQFP (20 × 20 mm, 0.5 mm pitch), lead-free, RoHS compliant.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F563NKHDFB and R5F563NJDDFB, the R5F56318SDFB#V0 delivers balanced flash/SRAM allocation (1.5 MB / 192 KB) and full three-CAN-channel support - making it the most cost-effective choice for Ethernet-connected controllers requiring robust fieldbus redundancy and deterministic real-time response.

Availability

R5F56318SDFB#V0 is available at Aetrix Electronics and suitable for industrial gateways, programmable logic controllers, building management systems, and energy monitoring devices requiring stable component supply and long-term manufacturability.

Supply support for R5F56318SDFB#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 the R5F56318SDFB#V0, was designed for industrial networking applications demanding integrated Ethernet, real-time control, functional safety support (IEC60730), and secure communications.

FAQ

What is the maximum operating frequency and core type of the R5F56318SDFB#V0?

The R5F56318SDFB#V0 features a 32-bit RX CPU core with a maximum operating frequency of 100 MHz, delivering 165 DMIPS performance. It uses a CISC Harvard architecture with a 5-stage pipeline and supports single-precision IEEE-754 floating-point operations. This core enables deterministic real-time execution for industrial control tasks while maintaining high code density through variable-length instructions.

Does the R5F56318SDFB#V0 include an Ethernet MAC, and what interfaces does it support?

Yes, the R5F56318SDFB#V0 integrates a full-featured Ethernet MAC (ETHERC) supporting both 10 and 100 Mbps operation in full- and half-duplex modes. It supports IEEE 802.3-compliant MII and RMII physical layer interfaces, Magic Packet™ wake-on-LAN detection, and IEEE 802.3x flow control. The dedicated EDMAC controller handles descriptor-based DMA transfers to reduce CPU overhead during network traffic.

What are the memory resources available on the R5F56318SDFB#V0?

The R5F56318SDFB#V0 includes 1.5 MB of on-chip flash memory (operating at 100 MHz with zero wait states), 192 KB of SRAM (also zero wait state), and 32 KB of reprogrammable data flash rated for 100,000 write/erase cycles. The flash supports on-board programming via JTAG/FINE and off-board parallel programming for production environments.

How many communication interfaces does the R5F56318SDFB#V0 support, and which ones are included?

The R5F56318SDFB#V0 supports Ethernet MAC, USB 2.0 host/function/OTG (full-speed), three CAN modules (ISO11898-1 compliant), up to 13 SCI channels (with UART, SPI, I²C, LIN modes), four I²C interfaces (one FM+), three RSPI channels, one IEBus channel, and a parallel data capture unit (PDC). This comprehensive interface set enables seamless integration into heterogeneous industrial networks.

Is the R5F56318SDFB#V0 suitable for functional safety applications such as IEC60730 compliance?

Yes, the R5F56318SDFB#V0 includes multiple hardware features supporting IEC60730 Class B compliance: oscillation-stoppage detection, built-in CRC calculator (with three polynomials), independent watchdog timer (IWDT), self-diagnostic function for the A/D converter, and clock frequency measurement capability. These features enable robust runtime monitoring and fault detection in safety-critical embedded control systems.