Renesas R5F56318DDLJ#U0

Overview

R5F56318DDLJ#U0 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, 128 KB SRAM, and 32 KB data flash. 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 deterministic real-time response and secure connectivity.

For engineers reviewing the R5F56318DDLJ#U0 datasheet, R5F56318DDLJ#U0 pinout, R5F56318DDLJ#U0 application, or R5F56318DDLJ#U0 equivalent, key selection criteria include Ethernet MAC support (MII/RMII), USB 2.0 host/function/OTG capability, triple CAN interface compliance with ISO11898-1, 21-channel 12-bit A/D converter with sample-and-hold, and AES-128/192/256 encryption via DEU.

Technical Context

The R5F56318DDLJ#U0 implements the RX CPU core with CISC Harvard architecture, 5-stage pipeline, and variable-length instructions enabling ultra-compact code. It integrates dedicated hardware accelerators including a DMA controller (4 channels), EXDMA controller (2 channels), and DTC for peripheral-triggered transfers - all supporting background operation without CPU intervention.

Its clock system combines external crystal oscillator input (4–16 MHz), internal PLL, 50-MHz HOCO, and 125-kHz LOCO, with independent frequency division for ICLK (up to 100 MHz), PCLK (up to 50 MHz), FCLK (up to 50 MHz), and BCLK (up to 50 MHz). The device includes memory protection unit (MPU), JTAG/FINE debugging interfaces, and IEC60730-compliant safety features such as oscillation-stop detection and CRC calculation.

Key Specifications

Pinout & Package

Package: PTLG0100JA-A, 100-pin TFLGA, 7 × 7 mm, 0.65-mm pitch, RoHS-compliant.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F56318DDLJ#U0, R5F563NDDDLJ offers identical functionality and footprint, while R5F563NECDLJ provides 512 KB additional flash for complex protocol stacks or dual-bank OTA updates - both retain full compatibility with existing hardware and toolchain.

Availability

R5F56318DDLJ#U0 is available at Aetrix Electronics and suitable for industrial gateways, secure PLCs, smart energy meters, and medical infusion pumps requiring stable component supply, long lifecycle support, and traceable sourcing.

Supply support for R5F56318DDLJ#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, which includes R5F56318DDLJ#U0, was designed for real-time industrial networking applications requiring integrated Ethernet, USB, CAN, and hardware security - targeting deterministic control, functional safety, and secure connectivity in harsh environments.

FAQ

What is the maximum operating frequency and core performance of the R5F56318DDLJ#U0?

The R5F56318DDLJ#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 (FPU) and dual multiply-accumulate units enable efficient signal processing and control algorithm execution. This performance level is confirmed in Renesas document R01DS0098EJ0180, page 1.

Does the R5F56318DDLJ#U0 include an Ethernet MAC, and what interfaces does it support?

Yes, the R5F56318DDLJ#U0 includes a fully integrated IEEE 802.3-compliant Ethernet MAC supporting both 10 Mbps and 100 Mbps operation. It supports MII (Media Independent Interface) and RMII (Reduced MII) physical layer interfaces, flow control per IEEE 802.3x, and Magic Packet wake-on-LAN functionality. These capabilities are documented in R01DS0098EJ0180, section "Ethernet controller (ETHERC)" on page 6.

What are the memory resources available on the R5F56318DDLJ#U0?

The R5F56318DDLJ#U0 includes 1.5 MB of on-chip flash memory (zero-wait-state at 100 MHz), 128 KB of SRAM, and 32 KB of reprogrammable data flash rated for 100,000 erase/write cycles. All memory blocks support background programming/erasing operations. This configuration is specified in Table 1.3 (page 9) of R01DS0098EJ0180 for part number R5F563NDDDLJ, which shares identical silicon with R5F56318DDLJ#U0.

Which analog peripherals are integrated into the R5F56318DDLJ#U0?

The R5F56318DDLJ#U0 integrates a 21-channel 12-bit A/D converter (S12ADa) with sample-and-hold, an 8-channel 10-bit A/D converter (ADb), two 10-bit D/A converters (DAa), and an on-die temperature sensor with ±1°C accuracy. Conversion can be triggered by software, timer events (MTU2/TPU/TMR), or external signals - details appear in R01DS0098EJ0180, pages 7 and 12.

Is the R5F56318DDLJ#U0 compatible with Renesas' E20 or E1 debug emulators?

Yes, the R5F56318DDLJ#U0 supports both JTAG and FINE (two-wire) debugging interfaces and is fully compatible with Renesas E1 and E20 emulators. The E1 emulator provides full-featured debugging including real-time trace, while the E20 offers high-speed download and simplified setup. This compatibility is confirmed in R01DS0098EJ0180, page 7, under "On-chip debugging system".