Renesas R5F56317CDLC#U0

Overview

R5F56317CDLC#U0 from Renesas is a 100 MHz 32-bit RX63N Group microcontroller with integrated Ethernet MAC, single-precision IEEE-754 FPU, 165 DMIPS performance, 768 KB on-chip flash memory, and 128 KB SRAM. It supports full-speed USB 2.0 host/function/OTG, CAN (3 channels), 12-bit/10-bit A/D converters (21+8 channels), dual 10-bit D/A, RTC with battery backup, and AES encryption - deployed in industrial gateways requiring real-time networking and secure firmware updates.

For engineers reviewing the R5F56317CDLC#U0 datasheet, R5F56317CDLC#U0 pinout, R5F56317CDLC#U0 application, or R5F56317CDLC#U0 equivalent, key selection criteria include Ethernet MAC + USB OTG coexistence, 100 MHz deterministic real-time execution, IEC60730 safety support (CRC, self-diagnostic A/D, oscillation detection), and 176-pin LQFP package compatibility with industrial PCB layouts.

Technical Context

The R5F56317CDLC#U0 implements the RXv1 CPU core with 5-stage CISC Harvard pipeline, variable-length instructions, and MPU for memory protection. 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) and four low-power modes including deep software standby with SRAM retention.

Peripheral architecture includes dedicated EDMAC for Ethernet offloading (2 KB TX/RX FIFO), DTC/DMAC/EXDMAC controllers, MTU2 and TPU timers supporting PWM, input capture, and A/D trigger generation, plus RIIC (4-channel, 1 Mbps), SCI (13 channels with LIN/Smart Card modes), and RSPI (3 channels with 128-bit buffers).

Key Specifications

Pinout & Package

Package: PLQP0176KB-A - 176-pin LQFP, 24 mm × 24 mm body, 0.5 mm pitch, exposed thermal pad (not electrically connected), RoHS compliant.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F56317CDLC#U0, R5F563NEDDLC#U0 offers greater flash capacity in a different package, while R5F5631BDLC#U0 removes Ethernet to reduce cost and power - making the R5F56317CDLC#U0 optimal for compact, Ethernet-reliant industrial edge controllers needing balanced memory and interface density.

Availability

R5F56317CDLC#U0 is available at Aetrix Electronics and suitable for industrial gateways, secure PLC communication modules, HMI controllers, and building automation gateways requiring stable component supply, long-term lifecycle assurance, and traceable sourcing.

Supply support for R5F56317CDLC#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 - including R5F56317CDLC#U0 - was designed for real-time industrial networking applications demanding integrated Ethernet, functional safety compliance, and deterministic execution in space-constrained environments.

FAQ

What is the maximum operating frequency and core architecture of the R5F56317CDLC#U0?

The R5F56317CDLC#U0 operates at a maximum frequency of 100 MHz using the 32-bit RXv1 CPU core with 5-stage pipeline, Harvard architecture, and variable-length instruction set. It delivers 165 DMIPS performance and includes a single-precision IEEE-754 floating-point unit. This architecture enables deterministic real-time execution critical for industrial control loops and protocol stack timing in the R5F56317CDLC#U0.

Does the R5F56317CDLC#U0 support Ethernet connectivity, and what physical layer interfaces does it include?

Yes, the R5F56317CDLC#U0 integrates a full IEEE 802.3-compliant Ethernet MAC supporting 10/100 Mbps in full- and half-duplex modes. It provides MII (Media Independent Interface) and RMII (Reduced MII) pinouts for connection to external PHY devices. The R5F56317CDLC#U0 does not include an integrated PHY - external magnetics and PHY IC are required for physical layer implementation.

What are the memory resources available on the R5F56317CDLC#U0?

The R5F56317CDLC#U0 features 768 KB of on-chip flash memory (executed at 100 MHz with zero wait states), 128 KB of SRAM (also zero-wait-state), and 32 KB of reprogrammable data flash rated for 100,000 erase/write cycles. These memory resources are sufficient for dual-bank firmware updates, real-time protocol stacks, and buffered Ethernet/USB packet handling in the R5F56317CDLC#U0.

How does the R5F56317CDLC#U0 support functional safety standards such as IEC60730?

The R5F56317CDLC#U0 includes hardware-level IEC60730 Class B compliance features: oscillation-stop detection for clock monitoring, CRC calculator with three configurable polynomials, self-diagnostic A/D converter test mode, and independent watchdog timer (IWDT) with dedicated LOCO clock source. These features are documented in the R5F56317CDLC#U0 hardware manual and enable certified safety firmware implementations without external components.

What package type and pin count does the R5F56317CDLC#U0 use, and is it RoHS compliant?

The R5F56317CDLC#U0 uses the PLQP0176KB-A package: a 176-pin LQFP with 24 mm × 24 mm body size and 0.5 mm pin pitch. It includes an exposed thermal pad (non-electrical) and complies with RoHS Directive 2011/65/EU. This package is compatible with standard surface-mount assembly processes and provides robust thermal performance for industrial ambient conditions in the R5F56317CDLC#U0.