Renesas R5F56317DGFB#V0

Overview

R5F56317DGFB#V0 from Renesas is a 100 MHz 32-bit RXv1 CPU-based microcontroller in the RX63N Group, featuring on-chip Ethernet MAC (10/100 Mbps), full-speed USB 2.0 host/function/OTG, 3 CAN channels, 12-bit and 10-bit A/D converters (21 + 8 channels), 2-channel 10-bit D/A, hardware AES encryption (DEU), and 128 KB SRAM. It targets industrial networking gateways requiring deterministic real-time control, secure firmware updates, and dual-protocol connectivity.

For engineers reviewing the R5F56317DGFB#V0 datasheet, R5F56317DGFB#V0 pinout, R5F56317DGFB#V0 application, or R5F56317DGFB#V0 equivalent, this MCU delivers verified IEEE 802.3-compliant Ethernet with RMII/MII support, integrated memory protection unit (MPU), IEC60730 safety features including CRC and self-diagnostic A/D, and production-ready low-power modes down to 500 µA/MHz.

Technical Context

The R5F56317DGFB#V0 implements the RXv1 core with Harvard architecture, 5-stage pipeline, and variable-length instructions enabling ultra-compact code density. It integrates dedicated DMA controllers - DMAC (4 ch), EXDMAC (2 ch), and EDMAC (1 ch for Ethernet) - to offload data movement from CPU cycles while maintaining deterministic latency for time-critical peripherals like MTU2 and TPU timers.

Its clock system supports independent domain scaling: ICLK up to 100 MHz for CPU execution, PCLK up to 50 MHz for peripherals, FCLK/BCLK at 50 MHz for flash and external bus, and IWDT-dedicated 125 kHz LOCO oscillator. The device includes dual A/D subsystems - S12ADa (12-bit, 1.0 µs conversion @50 MHz PCLK) and ADb (10-bit, same timing) - each supporting software, timer-triggered, or external-event-started conversions.

Key Specifications

Pinout & Package

Package: PLQP0144KA-A - 144-pin LQFP, 20 × 20 mm body, 0.5 mm pitch, exposed thermal pad. Designed for industrial PCB assembly with standard reflow profiles and mechanical robustness under thermal cycling.

Key Features

Applications

Equivalent & Alternatives

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

Compared with R5F56317DGFB#V0, R5F563NEDDFB offers scalable memory for feature-rich firmware, while R5F56317DGFV#V0 provides pin-compatible I/O headroom - both retain identical peripheral sets, Ethernet/USB/CAN functionality, and safety features without architectural trade-offs.

Availability

R5F56317DGFB#V0 is available at Aetrix Electronics and suitable for industrial automation, smart grid infrastructure, and embedded networking applications requiring stable component supply, long-term lifecycle assurance, and traceable sourcing.

Supply support for R5F56317DGFB#V0 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 R5F56317DGFB#V0, was engineered for deterministic real-time control in networked industrial equipment - integrating Ethernet, USB, CAN, and safety-certified peripherals on a single chip to reduce system complexity and certification effort.

FAQ

What is the maximum operating frequency and core architecture of the R5F56317DGFB#V0?

The R5F56317DGFB#V0 operates at a maximum frequency of 100 MHz using the 32-bit RXv1 CPU core with Harvard architecture, 5-stage pipeline, 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 processing in the R5F56317DGFB#V0.

Does the R5F56317DGFB#V0 support Ethernet connectivity, and what interface options are available?

Yes, the R5F56317DGFB#V0 integrates a full IEEE 802.3-compliant Ethernet MAC supporting both 10 Mbps and 100 Mbps operation in full- and half-duplex modes. It provides MII (16-pin) and RMII (6-pin) interface options, with RMII selected by default in the 144-pin LQFP package to minimize pin count and PCB area. The dedicated EDMAC controller handles descriptor-based packet transfers, reducing CPU overhead for the R5F56317DGFB#V0's network stack.

What are the memory resources available on the R5F56317DGFB#V0?

The R5F56317DGFB#V0 includes 768 KB of on-chip flash memory (executed at 100 MHz with zero wait states), 128 KB of SRAM (also zero-wait), and 32 KB of data flash rated for 100,000 write/erase cycles. Flash supports on-board programming via SWD/JTAG or off-board parallel programming. These memory resources are optimized for real-time firmware execution, protocol buffering, and non-volatile parameter storage in the R5F56317DGFB#V0's target applications.

How does the R5F56317DGFB#V0 support functional safety standards like IEC60730?

The R5F56317DGFB#V0 includes multiple hardware features for IEC60730 Class B compliance: oscillation-stop detection for main/sub clocks, built-in CRC calculator with three polynomial options, independent watchdog timer (IWDT) with dedicated 125 kHz oscillator, and self-diagnostic capability for the 10-bit A/D converter. These features are documented in Renesas' safety manual and enable certified safe operation in the R5F56317DGFB#V0 without external monitoring circuitry.

What is the package type and thermal specification for the R5F56317DGFB#V0?

The R5F56317DGFB#V0 is housed in a PLQP0144KA-A package: a 144-pin LQFP with 20 × 20 mm body size, 0.5 mm pin pitch, and exposed thermal pad. It is rated for industrial temperature range (-40°C to +85°C) and operates from a single 2.7–3.6 V supply. Thermal design must follow Renesas' recommended copper pour and via patterns under the thermal pad to maintain junction temperature within limits for sustained 100 MHz operation in the R5F56317DGFB#V0.