Renesas R5F56316DGFC#V0

Overview

R5F56316DGFC#V0 from Renesas is a 100 MHz 32-bit RX63N Group MCU with integrated Ethernet MAC, single-precision IEEE-754 FPU, 165 DMIPS performance, 1.5 MB on-chip flash, 192 KB SRAM, and 32 KB data flash-designed for industrial networking gateways requiring deterministic real-time control, secure firmware updates, and dual-mode USB 2.0 host/function operation.

For engineers reviewing the R5F56316DGFC#V0 datasheet, R5F56316DGFC#V0 pinout, R5F56316DGFC#V0 application, or R5F56316DGFC#V0 equivalent, key selection criteria include Ethernet MAC + RMII/MII support, 100-MHz timing-critical peripheral clocking (ICLK/PCLK), AES-128/192/256 DEU acceleration, and IEC60730-compliant self-diagnostic features including CRC, IWDT, and A/D converter diagnostics.

Technical Context

The R5F56316DGFC#V0 implements the RX CPU core with CISC Harvard architecture, 5-stage pipeline, and variable-length instructions enabling ultra-compact code density. It integrates dedicated hardware accelerators: a 32-bit multiplier (1-cycle execution), divider (2-cycle), and DSP-capable MAC units supporting both memory-to-memory and register-to-register operations.

Its clock system supports independent frequency division/multiplication for ICLK (up to 100 MHz), PCLK (up to 50 MHz), FCLK (50 MHz), and BCLK (50 MHz), enabling precise peripheral timing isolation. The MCU includes an Ethernet controller compliant with IEEE 802.3/802.3u (10/100 Mbps, MII/RMII), DMA controller for Ethernet (EDMAC), and USB 2.0 full-speed host/function/OTG module with 2 KB on-chip RAM buffer.

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 R5F56316DGFC#V0, R5F563NKHDFC offers greater flash headroom for secure dual-bank updates, while R5F563NJDDFC trades Ethernet capability for extra SRAM-making R5F56316DGFC#V0 optimal for time-sensitive, connected industrial edge nodes requiring balanced memory, security, and networking.

Availability

R5F56316DGFC#V0 is available at Aetrix Electronics and suitable for industrial networking gateways, smart energy metering hubs, medical infusion pump controllers, and factory automation PLC I/O modules requiring stable component supply across extended product lifecycles.

Supply support for R5F56316DGFC#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 is engineered for real-time industrial control with integrated Ethernet, USB OTG, and functional safety features-targeting applications demanding deterministic response, secure communications, and long-term reliability under harsh environmental conditions.

FAQ

What is the maximum operating frequency and core architecture of the R5F56316DGFC#V0?

The R5F56316DGFC#V0 operates at a maximum frequency of 100 MHz and uses the 32-bit RX CPU core with CISC 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 high code density and deterministic real-time execution critical for industrial control applications where the R5F56316DGFC#V0 is deployed.

Does the R5F56316DGFC#V0 support Ethernet connectivity, and what physical layer interfaces does it include?

Yes, the R5F56316DGFC#V0 includes a fully integrated IEEE 802.3/802.3u-compliant Ethernet MAC supporting 10/100 Mbps in full- and half-duplex modes. It provides both MII and RMII interface signal sets (ETXD0–3, ETXEN, ETXER, ERXD0–3, ERXDV, ERXER), allowing direct connection to external PHYs. The R5F56316DGFC#V0 does not integrate a PHY, so an external PHY IC is required for physical layer implementation.

What security and functional safety features are implemented in the R5F56316DGFC#V0 for industrial applications?

The R5F56316DGFC#V0 integrates multiple IEC60730 Class B-compliant features: oscillation-stop detection, frequency measurement, CRC calculator, independent watchdog timer (IWDT), and A/D converter self-diagnostic function. It also includes a Data Encryption Unit (DEU) supporting AES-128/192/256 in ECB/CBC modes and a Memory Protection Unit (MPU) for privilege-level enforcement. These features collectively enable safe, secure operation in the R5F56316DGFC#V0's target industrial environments.

How much on-chip memory does the R5F56316DGFC#V0 provide, and what are its access characteristics?

The R5F56316DGFC#V0 includes 1.5 MB of on-chip flash memory with zero-wait-state access at 100 MHz, 192 KB of SRAM with no-wait access and deep software standby backup capability, and 32 KB of reprogrammable data flash rated for 100,000 erase/write cycles. Flash programming can be performed in-system or via parallel programmer mode. These memory resources make the R5F56316DGFC#V0 suitable for complex firmware with secure boot, OTA update, and real-time data logging requirements.

What USB capabilities does the R5F56316DGFC#V0 support, and how is it configured for host versus device mode?

The R5F56316DGFC#V0 integrates a full-speed USB 2.0 host/function/OTG module with an on-chip transceiver and 2 KB dedicated RAM buffer. It supports self-powered and bus-powered configurations and enables On-The-Go operation via ID pin detection. Host and device roles are software-configurable using the USBa module registers. This flexibility allows the R5F56316DGFC#V0 to serve as a USB peripheral (e.g., HID device) or a host for flash drives or sensors-without requiring external PHY components.