Renesas R5F56317SDLC#U0

Overview

R5F56317SDLC#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 R5F56317SDLC#U0 datasheet, R5F56317SDLC#U0 pinout, R5F56317SDLC#U0 application, or R5F56317SDLC#U0 equivalent, this MCU delivers verified Ethernet MAC + USB 2.0 host/function + CAN + multiple high-resolution ADCs in a 176-pin LQFP package - critical for evaluating networked HMI, gateway, and programmable logic controller designs.

Technical Context

The R5F56317SDLC#U0 implements the 32-bit RX CPU core with 5-stage CISC Harvard pipeline, supporting variable-length instructions and ultra-compact code density. It integrates dedicated hardware accelerators including a 32×32-bit multiplier (1-cycle execution), divider (2-cycle), and AES-128/192/256 DEU engine compliant with ECB/CBC modes.

Its clock system combines external crystal oscillator support (4–16 MHz), internal PLL, 50-MHz HOCO, and 125-kHz LOCO for independent IWDT operation. The peripheral bus architecture provides separate ICLK (up to 100 MHz), PCLK (up to 50 MHz), FCLK (up to 50 MHz), and BCLK (up to 50 MHz) domains with configurable endian mode per CS area.

Key Specifications

Pinout & Package

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

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F56317SDLC#U0, R5F563NEDDFC offers higher memory headroom for feature-rich gateways, while R5F563NECDFC provides identical core functionality at lower cost where extended temperature qualification is unnecessary.

Availability

R5F56317SDLC#U0 is available at Aetrix Electronics and suitable for industrial Ethernet gateways, smart energy meters, and programmable logic controllers requiring stable component supply, long-term lifecycle assurance, and traceable sourcing.

Supply support for R5F56317SDLC#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 R5F56317SDLC#U0, was designed for industrial automation and networked embedded systems requiring integrated Ethernet, real-time determinism, functional safety support (IEC 60730), and secure firmware execution.

FAQ

What is the maximum operating frequency and core architecture of the R5F56317SDLC#U0?

The R5F56317SDLC#U0 operates at a maximum frequency of 100 MHz using the 32-bit RX CPU core with a 5-stage CISC Harvard pipeline. It achieves 165 DMIPS performance and supports single-precision IEEE-754 floating-point operations. This architecture enables deterministic real-time execution for industrial control tasks, and the R5F56317SDLC#U0 leverages its on-chip FPU to accelerate math-intensive algorithms without software emulation overhead.

Does the R5F56317SDLC#U0 include an Ethernet MAC, and what PHY interfaces does it support?

Yes, the R5F56317SDLC#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 interfaces, along with Magic Packet™ wake-on-LAN detection and IEEE 802.3x flow control. The R5F56317SDLC#U0 does not include a physical-layer transceiver - external PHY selection is required based on application voltage, noise immunity, and ESD requirements.

What are the memory resources available on the R5F56317SDLC#U0?

The R5F56317SDLC#U0 features 768 KB of on-chip flash memory with zero-wait-state access at 100 MHz, 128 KB of on-chip SRAM also with no-wait access, and 32 KB of reprogrammable data flash rated for 100,000 erase/write cycles. These memory resources are optimized for real-time deterministic execution and background programming - the R5F56317SDLC#U0 supports BGO (background operation) for data flash writes without halting CPU execution.

How many analog-to-digital converter channels does the R5F56317SDLC#U0 provide, and what are their key specifications?

The R5F56317SDLC#U0 includes one 12-bit A/D converter (S12AD) with up to 21 input channels and one 10-bit A/D converter (ADb) with up to 8 channels. Both support 1.0 µs conversion time when PCLK is 50 MHz, sample-and-hold functionality, and flexible trigger sources (software, timer, or external pin). The R5F56317SDLC#U0 also integrates an on-die temperature sensor digitized through the 12-bit ADC, delivering ±1°C accuracy for thermal monitoring without external components.

Is the R5F56317SDLC#U0 supported by Renesas' debugging and development tools?

Yes, the R5F56317SDLC#U0 is fully supported by Renesas' E1 and E20 debug emulators via JTAG and FINE (two-wire) interfaces. It is compatible with e2 studio IDE, CS+ (formerly CubeSuite+), and the Renesas RX Family starter kits. The R5F56317SDLC#U0 includes on-chip debugging circuitry enabling real-time trace, breakpoint, and watchpoint capabilities - essential for validating deterministic timing in industrial control applications.