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Renesas Electronics Corporation

RX Family 32-Bit Performance/Efficiency MCUs

RX Family MCUs leverage advanced CPU cores packed with innovations unique to Renesas. Based on proprietary technology developed over many years, these MCUs deliver scalability and improved power efficiency with outstanding performance and low power consumption. The RX Family offers ideal solutions—from entry-level to high performance—for industrial, home electronics, office automation, and ICT applications.

Unmatched Performance & Efficiency

RX Family MCUs deliver superior performance up to 6.01 CoreMark/MHz, fast interrupt response, and low power consumption for energy-saving embedded systems.

Comprehensive Functionality

Enjoy versatile features, including connectivity, safety, HMI, analog, and motor control, backed by extensive pin and memory options to meet diverse application needs.

Scalable & Compatible Design

RX microcontrollers ensure seamless scalability with downward-compatible instruction sets and shared tools, enabling efficient software reuse across product lines.

Streamlined Development Tools

Accelerate development with our auto-generated drivers, middleware, and a comprehensive development environment with support from evaluation to mass production.

Product Portfolio

Compare All Products

The RX Family spans a comprehensive range of product segments, supporting everything from system and HMI control in consumer devices to sensor measurement and motor/inverter control in industrial equipment. Built on a common architecture, all RX MCUs offer seamless software reuse and straightforward design scalability, enabling efficient development across the entire lineup.

Functional Safety

Functional Safety

Our pre-certified functional safety solutions ensure safety and reliability in industrial systems. From MCU self-test software to evaluation boards and technical documentation, we simplify compliance, reduce development burdens, and help you create safer, more dependable factories and smart homes.

Introduction to Renesas Functional Safety
IEC/UL 60730 Functional Safety for Home Appliances
The IEC 60730 safety standard for household electronic equipment and home appliances provides for safe and reliable operation.
Key Technologies
IEC 61508 Functional Safety for Industrial Applications
As functional safety standards expand in many industrial fields, Renesas offers functional safety solutions and development tools with safety support.

Human Machine Interface

Human Machine Interface

Our comprehensive Human Machine Interface (HMI) solutions offer a robust suite of hardware, software, and tools to streamline development, helping users to create intuitive, responsive interfaces for a wide range of applications. From touchscreens and voice control to gesture recognition and haptics, Renesas provides the technologies to enhance user interaction and deliver cutting-edge experiences.

Woman using smart home control on a digital tablet
HMI Card Image
Key Technologies
Learn More About HMI Solutions
Explore advanced human-machine interface (HMI) solutions that integrate touchscreen, voice control, and AI. Supporting advanced displays, capacitive touch sensing, and AI-driven user input, it can be easily integrated into applications such as…

Motor Control

Motor Control

The RX MCUs for inverter control incorporate motor control timers and other built-in functions for inverter control that were cultivated in previous products such as the SH controllers and the H8SX MCUs. They support the 5V power supply that is required by many industrial applications, and are also equipped with a comprehensive set of analog functions such as 12-bit analog-to-digital (A/D), 3-channel simultaneous sampling hold circuit, programmable gain amplifier (PGA), and a comparator.

Motor Control Solutions Overview
Key Technologies
Learn More About Motor Control Solutions
Renesas Electronics provides comprehensive motor control solutions, including brushless DC motors (BLDC) or permanent magnet synchronous motors (PMSM), stepper motor design systems, etc. Discover comprehensive support for various motor types with…
Brochure
Brochure: Motor Solutions
PDF24.5 MBR30CA0165EJ0800 Rev.8.00日本語Oct 31, 2025

Security

Security

The rise of smart technologies and connected ecosystems, along with stricter regulations, drives manufacturers to prioritize security. Developers face tight budgets and timelines while building efficient, secure solutions. The RX Family meets these needs with hardware-based security, including isolated cryptographic operations and secure key storage.

Security in the Connected World
Security
Learn More About Security
Explore Renesas IoT security solutions. Learn how to design and implement secure applications with advanced features, certifications, and trusted partners.
Security
Learn More About the Cyber Resilience Act
The EU Cyber Resilience Act (CRA) focuses on the cybersecurity of products with digital elements to protect individual and corporate consumers from cybersecurity threats. Renesas takes security as its core and ensures that its product design,…

Internet of Things (IoT)

Internet of Things (IoT)

The IoT market continues to rapidly expand in Industrial IoT, smart homes, and smart cities. To accelerate IoT product development and enable Over-the-Air (OTA) firmware updates, the RX family offers IoT evaluation kits, development environments (e² studio), and a development assistance tool (QE for OTA). An optimized sensor measurement solution is also available to meet the needs of IoT.

Demonstration of IoT Air Conditioner Using Renesas IoT Cloud Solutions
RX IoT Cloud Over-the-Air (OTA) Solution
Renesas is working with Amazon Web Services (AWS), a leading cloud vendor, and Microsoft to provide solutions that can drive digital transformation (DX) using the cloud.
Flyer
Sensor Measurement Solution
PDF840 KBR01PF0241EJ0200 Rev.2.00日本語Jul 3, 2024
IoT Cloud Solutions
End-to-end cloud hardware and software solutions simplify connectivity and prototyping.

Industrial Network

Industrial Network

Seamless real-time communication is the core prerequisite for all Industry 4.0 and Industrial Internet of Things (IIoT) implementations. We offer best-in-class communication components and comprehensive software support for all leading industrial communication protocols, including but not limited to PROFINET, EtherNet/IP, EtherCAT, Modbus, and CC-Link.

Network switch router with multiple ethernet cables plugged in, green LED lights glowing to indicate connectivity in a modern data center.
Network Switch Router with Multiple Ethernet Cables
Industrial
Industrial Automation
Renesas offers complete industrial automation solutions covering HMI, industrial controllers, communication & test and measurement, integrating MCU, MPU, edge AI, and motor drive technologies for efficient, safe and smart Industry 4.0 production.
RX72M Network Solution
This solution uses RX72M evaluation boards and protocol stacks to shorten the development time of slave devices that support a wide variety of industrial networks, which is an urgent issue.

Get Started with RX MCUs

We support RX Family development with IDEs, real-time OS, middleware, and tools. Paired with evaluation kits, they simplify coding, building, and debugging, reducing system development time.

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Evaluation Boards & Kits
Evaluation boards include starter and evaluation with Arduino, Pmod™, and mikroBUS support for seamless prototyping, evaluation, and expanded functionality.
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Development Tools & Environment
Explore the RX development environment with tools and software to streamline debugging, accelerate development, and reduce time to market.
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Renesas Partner Program
Connect with trusted partners to explore end-to-end solutions—combining Renesas technologies with hardware, software, and design services to reduce integration effort, lower risk, and accelerate time-to-market.
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Power Attach
Define your system input and output requirements. You can build a system from scratch or choose from over 300 templates covering MCU/MPUs and popular FPGA platforms.
NexCOBOT NEIO functional safety device.
Success Story

Human-Robot Collaboration at NexCOBOT

Discover how NexCOBOT is revolutionizing functional safety through seamless collaboration between humans and robots.

Support

Support Communities

Support Communities

Get quick technical support online from Renesas Engineering Community technical staff.
Browse Articles

Knowledge Base

Browse our knowledge base for helpful articles, FAQs, and other useful resources.
Product Longevity Program (PLP)

Product Longevity Program (PLP)

Select appropriate products for applications requiring long life cycles.