Renesas R5F56317DDLC#U0

Overview

R5F56317DDLC#U0 from Renesas is a 100-MHz 32-bit RX63N Group microcontroller featuring an integrated Ethernet MAC (10/100 Mbps), 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 deterministic real-time response and secure connectivity.

For engineers reviewing the R5F56317DDLC#U0 datasheet, R5F56317DDLC#U0 pinout, R5F56317DDLC#U0 application, or R5F56317DDLC#U0 equivalent, this page delivers verified specifications, package mapping to PLQP0176KB-A (176-pin LQFP), confirmed Ethernet/USB/CAN/SCI peripheral integration, and two validated alternative parts for functional migration paths.

Technical Context

The R5F56317DDLC#U0 implements the RXv1 CPU core with CISC 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 in ECB/CBC modes.

Its clock system combines external crystal oscillator support (4–16 MHz), internal 50-MHz HOCO and 125-kHz LOCO, plus PLL-based frequency synthesis - all with independent division/multiplication settings for ICLK (up to 100 MHz), PCLK (up to 50 MHz), FCLK (50 MHz), and BCLK (50 MHz). The MCU includes MPU, JTAG/FINE debug interfaces, and IEC60730-compliant self-diagnostic features.

Key Specifications

Pinout & Package

Package: PLQP0176KB-A - 176-pin LQFP, 24 × 24 mm, 0.5-mm pitch, RoHS-compliant, lead-free.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F56317DDLC#U0, R5F563NEDDFC offers scalable memory headroom for complex networking stacks, while R5F5631ADDFC trades Ethernet capability for reduced BOM cost and power in standalone control nodes - both maintain identical peripheral sets except for Ethernet-related modules.

Availability

R5F56317DDLC#U0 is available at Aetrix Electronics and suitable for industrial automation, building management systems, and embedded networking equipment requiring stable component supply, long-term lifecycle assurance, and automotive-grade reliability validation.

Supply support for R5F56317DDLC#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 enterprise applications.

The RX63N Group, which includes R5F56317DDLC#U0, was designed for real-time industrial networking applications demanding integrated Ethernet, functional safety compliance (IEC60730), and deterministic execution - targeting gateways, PLCs, HMIs, and smart sensors.

FAQ

What is the maximum operating frequency and core architecture of the R5F56317DDLC#U0?

The R5F56317DDLC#U0 operates at a maximum frequency of 100 MHz using the 32-bit RXv1 CPU core with CISC Harvard architecture, 5-stage pipeline, and variable-length instruction set. It delivers 165 DMIPS performance and includes single-precision IEEE-754 floating-point unit, 32-bit multiplier (1-cycle), and divider (2-cycle). This architecture enables deterministic real-time behavior critical for industrial control loops and network packet processing in the R5F56317DDLC#U0.

Does the R5F56317DDLC#U0 include an Ethernet controller, and what interfaces does it support?

Yes, the R5F56317DDLC#U0 includes a fully integrated IEEE 802.3-compliant Ethernet MAC supporting 10/100 Mbps operation in full- and half-duplex modes. It supports both MII (Media Independent Interface) and RMII (Reduced MII) physical layer interfaces, Magic Packet™ wake-on-LAN detection, and IEEE 802.3x flow control. The dedicated EDMAC hardware accelerator handles descriptor-based DMA transfers with 2 KB transmit and receive FIFOs - a defining feature distinguishing the RX63N Group (including R5F56317DDLC#U0) from the Ethernet-less RX631 Group.

What are the memory resources available on the R5F56317DDLC#U0?

The R5F56317DDLC#U0 integrates 768 KB of on-chip flash memory (executed at 100 MHz with zero wait states), 128 KB of SRAM (also zero-wait at 100 MHz), and 32 KB of reprogrammable data flash rated for 100,000 erase/write cycles. Flash supports on-board programming via SWD/JTAG and off-board parallel programming (for ≥100-pin packages). These memory resources are fixed for the R5F56317DDLC#U0 variant and differ from higher-capacity RX63N parts like R5F563NEDDFC (2 MB flash, 256 KB SRAM).

Which communication peripherals are integrated into the R5F56317DDLC#U0?

The R5F56317DDLC#U0 integrates Ethernet MAC, USB 2.0 host/function/OTG (full-speed), three CAN 2.0B channels (32 mailboxes each), thirteen SCI channels (supporting async, sync, smart-card, SPI/I²C emulation, LIN), four I²C interfaces (one FM+), three RSPI modules, one IEBus channel, and a parallel data capture unit (PDC). All are natively supported without external glue logic - enabling consolidated connectivity in space-constrained industrial nodes using the R5F56317DDLC#U0.

Is the R5F56317DDLC#U0 suitable for IEC60730 Class B safety-critical applications?

Yes, the R5F56317DDLC#U0 includes multiple hardware features certified for IEC60730 Class B compliance: oscillation-stoppage detection, frequency measurement circuitry, CRC calculator (with selectable polynomials), independent watchdog timer (IWDT) with dedicated LOCO clock, and self-diagnostic function for the 10-bit A/D converter. These are documented in the R01DS0098EJ0180 datasheet and form part of the functional safety foundation for applications such as motor controllers and HVAC safety monitors using the R5F56317DDLC#U0.