Renesas R5F56317SDFC#V0

Overview

R5F56317SDFC#V0 from Renesas is a 100-MHz 32-bit RX63N Group MCU with integrated Ethernet MAC, single-precision IEEE-754 FPU, 165 DMIPS performance, 1.5-Mbyte on-chip flash, and 192-Kbyte SRAM. It operates from a 2.7–3.6-V supply, supports -40 to +85°C industrial temperature range, and targets networked industrial controllers requiring real-time deterministic response and secure firmware execution.

For engineers reviewing the R5F56317SDFC#V0 datasheet, R5F56317SDFC#V0 pinout, R5F56317SDFC#V0 application, or R5F56317SDFC#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 AES-128/192/256 encryption via DEU for IEC60730-compliant safety-critical systems.

Technical Context

The R5F56317SDFC#V0 implements the RXv1 CPU core with Harvard architecture, 5-stage pipeline, and variable-length instructions enabling ultra-compact code density. It integrates dedicated hardware accelerators including a DMA controller (4 channels), EXDMA (2 channels), DTC, and EDMAC for Ethernet offloading - all synchronized to independent clock domains (ICLK up to 100 MHz, PCLK up to 50 MHz).

Its peripheral set is optimized for deterministic real-time control: MTU2 and TPU timers provide PWM, input capture, and phase-counting with digital filtering; RTC supports battery-backed time-capture; and the DEU performs AES encryption/decryption in ECB/CBC modes without CPU intervention - critical for secure boot and firmware updates in industrial gateways.

Key Specifications

Pinout & Package

Package: PLQP0176KB-A - 176-pin LQFP, 24 × 24 mm, 0.5-mm pitch, RoHS-compliant, surface-mountable with standard reflow profile.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F56317SDFC#V0, R5F563NKHDFC#V0 extends thermal range to +105°C without changing pinout or firmware compatibility, while R5F563NJHDFC#V0 increases memory headroom for complex connectivity stacks - both retain identical Ethernet, USB, CAN, and security features.

Availability

R5F56317SDFC#V0 is available at Aetrix Electronics and suitable for industrial Ethernet gateways, programmable logic controllers, building management systems, and energy monitoring gateways requiring stable component supply across long production lifecycles.

Supply support for R5F56317SDFC#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 industrial, automotive, and IoT markets.

The RX63N Group, which includes R5F56317SDFC#V0, was designed for real-time industrial control applications demanding integrated Ethernet, functional safety support (IEC60730), and secure firmware execution in harsh environments.

FAQ

What is the maximum operating frequency and core architecture of the R5F56317SDFC#V0?

The R5F56317SDFC#V0 operates at a maximum frequency of 100 MHz using the 32-bit RXv1 CPU core with 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 deterministic real-time execution and ultra-compact code density essential for resource-constrained industrial applications where the R5F56317SDFC#V0 is deployed.

Does the R5F56317SDFC#V0 support Ethernet connectivity, and what interface standards does it implement?

Yes, the R5F56317SDFC#V0 integrates a full IEEE 802.3-compliant Ethernet MAC supporting both MII and RMII physical layer interfaces. It operates at 10/100 Mbps in full- and half-duplex modes, includes flow control per IEEE 802.3x, and supports Magic Packet™ wake-on-LAN. The dedicated EDMAC hardware offloads frame processing from the CPU, reducing latency and improving throughput - a key differentiator of the R5F56317SDFC#V0 in networked industrial controllers.

What analog peripherals are included in the R5F56317SDFC#V0, and what are their resolution and channel counts?

The R5F56317SDFC#V0 includes a 21-channel 12-bit successive-approximation A/D converter (S12AD) with 1.0 μs conversion time at 50 MHz PCLK and integrated sample-and-hold, plus an 8-channel 10-bit A/D converter (ADb). It also features two 10-bit D/A converters (DAa) and an on-chip temperature sensor with ±1°C accuracy. These analog resources enable precise sensor interfacing and closed-loop control in applications where the R5F56317SDFC#V0 serves as the primary measurement and actuation node.

How does the R5F56317SDFC#V0 support functional safety standards such as IEC60730?

The R5F56317SDFC#V0 includes hardware features required for Class B IEC60730 compliance: oscillation-stoppage detection, built-in CRC calculator (with X8/X16 polynomials), independent watchdog timer (IWDT) with dedicated LOCO clock, and self-diagnostic capability for the 10-bit A/D converter. These capabilities allow runtime verification of clock integrity, memory consistency, and analog subsystem health - critical for safety-certified industrial equipment where the R5F56317SDFC#V0 functions as the safety monitor or control processor.

What security features does the R5F56317SDFC#V0 provide for firmware protection and secure communication?

The R5F56317SDFC#V0 integrates a Data Encryption Unit (DEU) supporting AES-128/192/256 encryption and decryption in ECB and CBC modes, enabling secure firmware storage and authenticated communication. Combined with the Memory Protection Unit (MPU) for privilege-level enforcement and register write protection for critical control registers, the R5F56317SDFC#V0 provides a hardware-rooted security foundation for secure boot, OTA updates, and encrypted data transmission - essential for protecting intellectual property and ensuring system integrity in deployed R5F56317SDFC#V0-based devices.