Renesas R5F56317DDLK#U0

Overview

R5F56317DDLK#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 Mbytes on-chip flash, 128 Kbytes SRAM, and 32 Kbytes data flash. It operates from a 2.7–3.6 V supply and supports -40 to +85°C industrial temperature range in a 145-pin TFLGA package (PTLG0145KA-A). It targets networked industrial control and IoT edge nodes requiring deterministic real-time response and secure connectivity.

For engineers reviewing the R5F56317DDLK#U0 datasheet, R5F56317DDLK#U0 pinout, R5F56317DDLK#U0 application, or R5F56317DDLK#U0 equivalent, this page delivers verified specifications, validated pin functions, confirmed peripheral capabilities (Ethernet MAC, USB 2.0 host/function, CAN, 12-bit A/D), and two rigorously cross-checked alternative parts for design continuity.

Technical Context

The R5F56317DDLK#U0 implements the RXv1 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-128/192/256 DEU engine supporting ECB/CBC modes.

Its clock system combines external crystal oscillator support (4–16 MHz), internal 50-MHz HOCO and 125-kHz LOCO, and PLL-based frequency synthesis - all configurable per domain (ICLK up to 100 MHz, PCLK up to 50 MHz). The memory subsystem features zero-wait-state access to flash and SRAM at full speed, with MPU-enforced memory protection.

Key Specifications

Pinout & Package

Package: 145-pin TFLGA (PTLG0145KA-A), 7 × 7 mm, 0.5-mm pitch, 5-V tolerant I/O (18 pins), open-drain outputs (111), and pull-up resistors (111).

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar 32-bit industrial MCU applications.

Compared with R5F56317DDLK#U0, R5F563NEDDLK#U0 offers higher flash density for scalable firmware while maintaining full feature parity, whereas R5F563NECDFB#U0 trades Ethernet and CAN capability for lower-cost packaging - making it viable only in non-networked embedded control.

Availability

R5F56317DDLK#U0 is available at Aetrix Electronics and suitable for industrial automation, networked sensor systems, and secure edge computing applications requiring stable component supply, long-term lifecycle assurance, and traceable sourcing.

Supply support for R5F56317DDLK#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 R5F56317DDLK#U0, was designed for deterministic real-time industrial control with integrated Ethernet, USB, and functional safety features - targeting IEC 60730 Class B certification and seamless integration into factory automation infrastructure.

FAQ

What is the maximum operating frequency of the R5F56317DDLK#U0?

The R5F56317DDLK#U0 operates at a maximum system clock frequency of 100 MHz. This is achieved using the on-chip PLL with an external 4–16 MHz crystal or internal 50-MHz HOCO. At 100 MHz, the RXv1 core delivers 165 DMIPS, and flash/SRAM accesses execute with zero wait states - ensuring deterministic real-time performance for industrial control loops. The R5F56317DDLK#U0 maintains this frequency across its full -40 to +85°C operating range.

Does the R5F56317DDLK#U0 include an Ethernet MAC, and what PHY interfaces does it support?

Yes, the R5F56317DDLK#U0 integrates a full IEEE 802.3-compliant Ethernet MAC supporting both 10 and 100 Mbps operation in full- and half-duplex modes. It supports MII (Media Independent Interface) and RMII (Reduced MII) PHY connections via dedicated pins (ETH_MDC/MDIO, ETH_TXD[0:3], ETH_RXD[0:3], REF_CLK). The R5F56317DDLK#U0 does not include a physical layer transceiver - an external PHY IC is required for physical layer signaling.

What are the memory resources available on the R5F56317DDLK#U0?

The R5F56317DDLK#U0 provides 1.5 Mbytes of on-chip main flash memory (zero wait states at 100 MHz), 128 Kbytes of SRAM (zero wait states), and 32 Kbytes of reprogrammable data flash rated for 100,000 erase/write cycles. Flash supports background programming/erasing (BGO), enabling firmware updates without halting application execution. The R5F56317DDLK#U0 also includes a memory protection unit (MPU) for secure partitioning of code and data regions.

Which communication interfaces are integrated into the R5F56317DDLK#U0?

The R5F56317DDLK#U0 integrates Ethernet MAC, USB 2.0 host/function/OTG, three CAN channels (ISO 11898-1), up to 13 SCI modules (configurable as UART, SPI, I²C, LIN), four I²C bus interfaces (one FM+), three RSPI channels, one IEBus channel, and a parallel data capture unit (PDC). These interfaces are fully supported in the R5F56317DDLK#U0's 145-pin TFLGA package, with pin assignments documented in the official Renesas hardware manual.

Is the R5F56317DDLK#U0 suitable for IEC 60730 Class B safety-critical applications?

Yes, the R5F56317DDLK#U0 includes multiple hardware features certified for IEC 60730 Class B compliance: oscillation-stoppage detection, independent watchdog timer (IWDT) with dedicated LOCO clock, CRC calculator, self-diagnostic A/D converter function, and memory protection unit (MPU). Renesas provides dedicated application notes and safety manuals confirming R5F56317DDLK#U0 qualification - making it suitable for safety-relevant industrial control and appliance applications without requiring external safety monitors.