Renesas R5F56317SDLK#U0

Overview

R5F56317SDLK#U0 from Renesas is a 100 MHz 32-bit RX63N Group microcontroller with integrated Ethernet MAC, single-precision IEEE-754 FPU, 165 DMIPS performance, 768 KB on-chip flash memory, and 128 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 R5F56317SDLK#U0 datasheet, R5F56317SDLK#U0 pinout, R5F56317SDLK#U0 application, or R5F56317SDLK#U0 equivalent, key selection criteria include its 100 MHz CPU clock, Ethernet MAC (MII/RMII), USB 2.0 host/function/OTG interface, three CAN channels, and 21-channel 12-bit A/D converter - all confirmed for this LQFP-144 package variant.

Technical Context

The R5F56317SDLK#U0 implements the 32-bit RX CPU core with Harvard architecture, 5-stage pipeline, and variable-length instructions enabling ultra-compact code. It integrates dedicated hardware accelerators including a 32-bit multiplier (1-cycle execution), divider (2-cycle), and AES encryption/decryption unit supporting 128/192/256-bit keys in ECB/CBC modes.

Its peripheral subsystem includes an Ethernet controller compliant with IEEE 802.3 at 10/100 Mbps, DMA controller for Ethernet (EDMAC) with 2 KB TX/RX FIFOs, and dual USB 2.0 modules (host/function + function-only). The MCU supports four low-power modes and features a memory protection unit (MPU) for IEC60730-compliant safety-critical firmware.

Key Specifications

Pinout & Package

Package: PLQP0144KA-A - 144-pin LQFP, 20 × 20 mm, 0.5 mm pitch, RoHS-compliant, surface-mount.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F56317SDLK#U0, the #V0 variant offers identical functionality in tape-and-reel format for automated manufacturing, while the #W0 variant extends operational temperature to +105°C for harsh environments - neither alters core peripheral capabilities or pinout.

Availability

R5F56317SDLK#U0 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 long product lifecycles.

Supply support for R5F56317SDLK#U0 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 infrastructure markets.

The RX63N Group, including R5F56317SDLK#U0, was designed for real-time industrial networking applications demanding integrated Ethernet, deterministic timing, functional safety support, and secure firmware execution.

FAQ

What is the maximum operating frequency and CPU performance of the R5F56317SDLK#U0?

The R5F56317SDLK#U0 operates at a maximum frequency of 100 MHz and delivers 165 DMIPS of processing performance using the 32-bit RX CPU core. Its single-precision IEEE-754 floating-point unit enables efficient real-time computation for control algorithms, and the 5-stage pipeline with variable-length instructions ensures high code density and deterministic execution timing - critical for industrial automation firmware running on R5F56317SDLK#U0.

Does the R5F56317SDLK#U0 include an integrated Ethernet MAC, and what physical interfaces does it support?

Yes, the R5F56317SDLK#U0 includes a fully integrated IEEE 802.3-compliant Ethernet MAC supporting both 10 Mbps and 100 Mbps operation in full- and half-duplex modes. It supports MII (Media Independent Interface) and RMII (Reduced Media Independent Interface) physical layer connections, with dedicated pins for ETH_MDC/MDIO, ETH_TXD0–3, ETH_RXD0–3, and ETH_REF_CLK. This eliminates the need for an external PHY in many designs, reducing BOM cost and board space for R5F56317SDLK#U0-based systems.

What memory resources are available on the R5F56317SDLK#U0?

The R5F56317SDLK#U0 integrates 768 KB of on-chip flash memory with zero-wait-state access at 100 MHz, 128 KB of zero-wait-state 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 100+ pin packages). The SRAM includes backup capability during deep software standby mode, preserving critical state across low-power transitions - a key feature for battery-backed R5F56317SDLK#U0 implementations.

How many analog-to-digital converter channels does the R5F56317SDLK#U0 provide, and what are their specifications?

The R5F56317SDLK#U0 includes a 21-channel 12-bit successive-approximation A/D converter (S12AD) with 1.0 μs conversion time when PCLK runs at 50 MHz, plus an 8-channel 10-bit A/D converter (ADb). Both units feature sample-and-hold circuits, selectable trigger sources (software, timers, or external pins), and support for temperature sensor measurement. The 12-bit unit also provides addition of conversion results and error detection - making R5F56317SDLK#U0 suitable for precision sensor interfacing in industrial control applications.

Is the R5F56317SDLK#U0 supported by Renesas' development tools and software ecosystem?

Yes, the R5F56317SDLK#U0 is fully supported by Renesas' e2 studio IDE, CS+ compiler toolchain, and the RX Driver Package (RDP). It is compatible with E1 and E20 debug emulators via JTAG and FINE interfaces. Middleware such as TCP/IP stacks (NetX Duo), USB device/host stacks, and CANopen protocol libraries are validated for RX63N Group MCUs. Renesas provides reference designs, application notes, and safety manuals specifically for R5F56317SDLK#U0 and related RX63N variants.