Renesas R5F566NDHDFC#30

Overview

R5F566NDHDFC#30 from Renesas is a 32-bit RXv3 microcontroller operating at up to 120 MHz, featuring double-precision IEEE-754 FPU, 4 MB on-chip code flash, 1 MB SRAM (including 32 KB ECC RAM), and integrated Ethernet MAC, CAN, USB 2.0 FS, SDHI, and GLCDC - designed for industrial HMI, networked gateways, and real-time control systems requiring deterministic timing and functional safety support.

For engineers reviewing the R5F566NDHDFC#30 datasheet, R5F566NDHDFC#30 pinout, R5F566NDHDFC#30 application, or R5F566NDHDFC#30 equivalent, this MCU delivers verified IEC 60730-compliant self-test features, dual-bank flash for safe firmware updates, hardware-accelerated 2D graphics rendering, and configurable low-power modes including deep software standby with 8 KB backup RAM - critical for edge devices with uptime and security requirements.

Technical Context

The R5F566NDHDFC#30 implements the RXv3 CPU core with 113 instructions, 16 general-purpose 32-bit registers, and double-precision FPU supporting 64-bit IEEE-754 operations. It integrates a memory protection unit (MPU) and supports little-endian or big-endian data arrangement, enabling secure, portable embedded firmware development.

Its clock system includes dual PLLs, selectable internal oscillators (LOCO/HOCO), and independent peripheral clock domains (PCLKA up to 120 MHz, PCLKB up to 60 MHz), allowing precise timing isolation for Ethernet, A/D conversion, and real-time control loops without CPU intervention via ELC-triggered event linking.

Key Specifications

Pinout & Package

Package: PLQP0176KB-C, 176-pin LQFP, 24 × 24 mm, 0.5 mm pitch, –40°C to +85°C (D-version).

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar 32-bit industrial MCU applications.

Compared with R5F566NDHDFC#30, the R5F566TEHDFP#30 reduces memory and I/O for compact designs, while the R5F571MLDDFC#30 shifts focus to security and CAN FD at the expense of graphics acceleration - making R5F566NDHDFC#30 optimal for display-rich, Ethernet-connected industrial controllers where GUI performance and dual-bank reliability are primary.

Availability

R5F566NDHDFC#30 is available at Aetrix Electronics and suitable for industrial HMI, networked PLC edge nodes, smart energy meter hubs, and medical device control units requiring stable component supply, long-term lifecycle assurance, and traceable sourcing.

Supply support for R5F566NDHDFC#30 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 enterprise applications.

The RX66N Group targets high-performance industrial automation and human-machine interface applications, integrating graphics acceleration, real-time networking, and functional safety features into a single scalable MCU platform.

FAQ

What is the maximum operating frequency and CoreMark score of the R5F566NDHDFC#30?

The R5F566NDHDFC#30 operates at a maximum frequency of 120 MHz and achieves 698 CoreMark in benchmark testing at that speed. This performance stems from its RXv3 CPU core with optimized pipeline, double-precision FPU, and zero-wait-state 4 MB flash access - enabling real-time deterministic execution in demanding industrial control applications where the R5F566NDHDFC#30 serves as the central processing unit.

Does the R5F566NDHDFC#30 support hardware-accelerated graphics rendering?

Yes, the R5F566NDHDFC#30 integrates both a Graphic-LCD Controller (GLCDC) and a dedicated 2D Drawing Engine (DRW2D). The DRW2D supports vector operations (lines, triangles, circles), bit-blit with scaling/rotation, and texture mapping - all executed in hardware without CPU involvement. This capability makes the R5F566NDHDFC#30 ideal for TFT-based HMIs where smooth GUI rendering is required without external GPU or frame buffer DRAM.

How does the R5F566NDHDFC#30 support IEC 60730 functional safety compliance?

The R5F566NDHDFC#30 includes multiple hardware features for IEC 60730 Class B compliance: oscillation-stop detection, hardware CRC accelerator (CRCA), windowed independent watchdog timer (IWDTa), A/D converter self-diagnostic mode, and register write protection. These capabilities allow developers to implement required safety checks without software overhead - a key design advantage of the R5F566NDHDFC#30 in certified industrial appliances and control systems.

What package type and pin count does the R5F566NDHDFC#30 use?

The R5F566NDHDFC#30 uses the PLQP0176KB-C package: a 176-pin LQFP with 24 × 24 mm body size and 0.5 mm pitch, rated for –40°C to +85°C operation (D-version). This package provides 136 general-purpose I/O pins with 5-V tolerance, pull-up resistors, and open-drain capability - matching the full peripheral set described in the RX66N Group datasheet for the R5F566NDHDFC#30.

Can the R5F566NDHDFC#30 execute firmware updates without interrupting real-time operation?

Yes, the R5F566NDHDFC#30 supports background programming (BGO) and dual-bank flash architecture. Firmware updates can be written to the inactive bank while the active bank continues executing code - enabling seamless, zero-downtime field upgrades. This feature is integral to the R5F566NDHDFC#30's design for mission-critical infrastructure where continuous operation is mandatory during maintenance cycles.