Renesas R5F56316DDLJ#U0

Overview

R5F56316DDLJ#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 Mbyte on-chip flash, and 128 Kbyte 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 deterministic real-time response and secure connectivity.

For engineers reviewing the R5F56316DDLJ#U0 datasheet, R5F56316DDLJ#U0 pinout, R5F56316DDLJ#U0 application, or R5F56316DDLJ#U0 equivalent, this MCU delivers verified Ethernet MAC (10/100 Mbps), full-speed USB 2.0 host/function/OTG, three CAN channels, 13 SCI interfaces, and hardware AES encryption - all in a 100-pin TFLGA package with 5-V-tolerant I/O and JTAG/FINE debug support.

Technical Context

The R5F56316DDLJ#U0 implements the 32-bit RX CPU core with 5-stage CISC Harvard pipeline, supporting variable-length instructions and memory protection unit (MPU) for safety-critical execution. Its clock system integrates PLL, HOCO (50 MHz), LOCO (125 kHz), and subclock oscillator, enabling independent domain clocking (ICLK up to 100 MHz, PCLK up to 50 MHz).

It features dedicated DMA controllers: 4-channel DMAC, 2-channel EXDMAC, and a single-channel EDMAC for Ethernet offload; plus DTC for peripheral-triggered transfers. The MCU includes dual A/D converters (21×12-bit + 8×10-bit), two 10-bit D/A channels, RTC with battery backup, and DEU for AES-128/192/256 encryption in ECB/CBC modes.

Key Specifications

Pinout & Package

Package: PTLG0100JA-A - 100-pin Thin Fine-Pitch Land Grid Array, 7 mm × 7 mm body, 0.65 mm pitch, 0.8 mm height, RoHS-compliant.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F56316DDLJ#U0, R5F56318DDLJ#U0 offers higher flash density for complex protocol stacks, while R5F56309DDLJ#U0 removes Ethernet and OTG to lower BOM cost - both retain identical pinout, clocking, and peripheral register maps for drop-in compatibility in non-Ethernet use cases.

Availability

R5F56316DDLJ#U0 is available at Aetrix Electronics and suitable for industrial gateways, secure PLCs, medical data loggers, and building automation hubs requiring stable component supply, long-term lifecycle support, and traceable sourcing.

Supply support for R5F56316DDLJ#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 is designed for high-performance, safety-aware industrial networking applications - integrating Ethernet, USB, CAN, and hardware security to replace multi-chip solutions with a single, certified MCU platform.

FAQ

What is the maximum operating frequency and core type of the R5F56316DDLJ#U0?

The R5F56316DDLJ#U0 operates at a maximum frequency of 100 MHz using the 32-bit RX CPU core with 5-stage pipeline, delivering 165 DMIPS performance and single-precision IEEE-754 floating-point unit. This core enables deterministic real-time execution for industrial control loops and protocol stacks, and is fully supported by Renesas' e2 studio IDE and GCC-based toolchain.

Does the R5F56316DDLJ#U0 include an Ethernet MAC, and what interface standards does it support?

Yes, the R5F56316DDLJ#U0 includes a full-featured Ethernet MAC supporting 10/100 Mbps operation in both full- and half-duplex modes, compliant with IEEE 802.3 and 802.3u. It supports MII and RMII physical layer interfaces, Magic Packet™ wake-on-LAN, and IEEE 802.3x flow control - all managed via its dedicated EDMAC for zero-copy packet processing.

What are the memory resources available on the R5F56316DDLJ#U0?

The R5F56316DDLJ#U0 integrates 1.5 Mbyte of on-chip flash memory (executed at 100 MHz with zero wait states), 128 Kbyte of SRAM (also zero-wait), and 32 Kbyte of reprogrammable data flash rated for 100,000 erase/write cycles. These resources support robust firmware partitioning, OTA update staging, and real-time data buffering without external memory.

Which communication interfaces are supported by the R5F56316DDLJ#U0 besides Ethernet?

Besides Ethernet, the R5F56316DDLJ#U0 supports USB 2.0 host/function/OTG (full-speed), three CAN 2.0B modules (32 mailboxes each), 13 SCI channels (with UART, SPI, I²C, LIN modes), four I²C buses (one FM+), three RSPI interfaces, one IEBus channel, and a parallel data capture unit (PDC). All are accessible via the 100-pin TFLGA package with pin-mapped flexibility.

Is the R5F56316DDLJ#U0 suitable for IEC60730 Class B safety-certified applications?

Yes, the R5F56316DDLJ#U0 includes hardware features required for IEC60730 Class B compliance: oscillation-stop detection, hardware CRC calculator, independent watchdog timer (IWDT) with dedicated oscillator, A/D converter self-diagnostic function, memory protection unit (MPU), and register write protection. These are documented in Renesas' RX63N Functional Safety Manual (R01US0099EJ0100).