Renesas R5F56317DDLJ#U0

Overview

R5F56317DDLJ#U0 from Renesas is a 100 MHz 32-bit RX63N Group microcontroller with integrated Ethernet MAC, single-precision FPU, 165 DMIPS performance, 1.5 Mbyte on-chip flash, 128 Kbyte SRAM, and 32 Kbyte data flash. It operates from a 2.7–3.6 V supply, supports -40 to +85°C industrial temperature range, and targets networked industrial control and gateway applications requiring deterministic real-time response and secure connectivity.

For engineers reviewing the R5F56317DDLJ#U0 datasheet, R5F56317DDLJ#U0 pinout, R5F56317DDLJ#U0 application, or R5F56317DDLJ#U0 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 - all in a 100-pin TFLGA package with 5-V-tolerant I/Os.

Technical Context

The R5F56317DDLJ#U0 implements the RXv1 CPU core with Harvard architecture, 5-stage pipeline, and variable-length instructions enabling ultra-compact code density. It integrates dedicated peripherals including an Ethernet controller (ETHERC) with 2 KB TX/RX FIFOs and EDMAC, USB 2.0 host/function module with 2 KB buffer, and three CAN modules compliant with ISO11898-1.

Its memory subsystem includes no-wait-state 100 MHz flash (1.5 Mbyte), 128 Kbyte SRAM, and 32 Kbyte reprogrammable data flash supporting background operation. Clock management features PLL, LOCO/HOCO oscillators, and independent RTC with battery backup - all coordinated via a centralized clock generation circuit with configurable division/multiplication per domain (ICLK, PCLK, FCLK, BCLK).

Key Specifications

Pinout & Package

Package: PTLG0100JA-A - 100-pin Thin Fine-Pitch Land Grid Array (TFLGA), 7 × 7 mm, 0.65 mm pitch, 5-V-tolerant I/Os, thermal pad on underside.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F56317DDLJ#U0, R5F56318DDLJ#U0 offers higher flash capacity without trade-offs, while R5F56307DDLJ#U0 sacrifices Ethernet and sub-clock functionality - making it unsuitable for time-synchronized or networked deployments requiring IEEE 1588 or low-power RTC backup.

Availability

R5F56317DDLJ#U0 is available at Aetrix Electronics and suitable for industrial gateways, smart meters, building automation controllers, and secure HMIs requiring stable component supply, long-term lifecycle assurance, and traceable sourcing.

Supply support for R5F56317DDLJ#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 automotive, industrial, and IoT markets.

The RX63N Group - including R5F56317DDLJ#U0 - was designed for industrial networking applications demanding integrated Ethernet, real-time determinism, functional safety support (IEC60730), and hardware security acceleration.

FAQ

What is the maximum operating frequency and core architecture of the R5F56317DDLJ#U0?

The R5F56317DDLJ#U0 operates at a maximum frequency of 100 MHz and implements the 32-bit RXv1 CPU core with CISC Harvard architecture, 5-stage pipeline, and variable-length instructions. Its architecture delivers 165 DMIPS performance and supports single-precision IEEE-754 floating-point operations - essential for real-time signal processing in industrial control applications where the R5F56317DDLJ#U0 serves as the primary computation engine.

Does the R5F56317DDLJ#U0 include an Ethernet MAC, and what interfaces does it support?

Yes, the R5F56317DDLJ#U0 includes a fully integrated IEEE 802.3-compliant Ethernet MAC (ETHERC) supporting both MII and RMII physical layer interfaces at 10/100 Mbps full- and half-duplex modes. It also incorporates a dedicated Ethernet DMA controller (EDMAC) with 2 KB TX/RX FIFOs and flow control per IEEE 802.3x - enabling efficient packet handling in protocols like Modbus TCP or BACnet/IP without CPU intervention during the R5F56317DDLJ#U0's operation.

What are the memory resources available on the R5F56317DDLJ#U0?

The R5F56317DDLJ#U0 integrates 1.5 Mbyte of on-chip flash memory (zero wait states at 100 MHz), 128 Kbyte of SRAM, and 32 Kbyte of reprogrammable data flash rated for 100,000 erase/write cycles. The data flash supports background programming/erasing (BGO), allowing firmware updates or parameter storage without halting application execution - a critical capability for field-deployed systems relying on the R5F56317DDLJ#U0 for continuous operation.

How many A/D converter channels does the R5F56317DDLJ#U0 support, and what is their resolution?

The R5F56317DDLJ#U0 includes a 12-bit successive-approximation A/D converter (S12AD) with 21 input channels and a separate 10-bit A/D converter (ADb) with 8 channels. Both units feature sample-and-hold circuits, selectable trigger sources (timers or external pins), and 1.0 μs conversion time at 50 MHz PCLK - enabling high-fidelity sensor acquisition in motor control or energy metering applications where the R5F56317DDLJ#U0 performs real-time analog signal conditioning.

Is hardware cryptographic acceleration available on the R5F56317DDLJ#U0?

Yes, the R5F56317DDL#U0 integrates a Data Encryption Unit (DEU) supporting AES-128/192/256 encryption and decryption in ECB and CBC modes. This hardware accelerator operates independently of the CPU, enabling secure firmware updates, TLS handshake acceleration, and tamper-resistant data logging - fulfilling IEC 62443 security requirements without compromising real-time performance of the R5F56317DDLJ#U0 in industrial edge devices.