Microcontrollers

Proven, Innovative Microcontroller Technologies with Low Power and High Performance

Simply AVR

Discover why Atmel AVR MCUs are simple to use and used everywhere.


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Atmel® microcontrollers deliver a rich blend of efficient integrated designs, proven technology, and groundbreaking innovation that is ideal for today's smart, connected products. In this era of the Internet of Things (IoT), microcontrollers comprise a key technology that fuels machine-to-machine (M2M) communications.

Building on decades of experience and industry leadership, Atmel offers proven architectures that are optimized for low power, high-speed connectivity, optimal data bandwidth, and rich interface support. By using our wide variety of configuration options, developers can devise complete system solutions for all kinds of applications.

Atmel microcontrollers can also support seamless integration of capacitive touch technology to implement buttons, sliders, and wheels (BSW). In addition, Atmel microcontrollers (MCUs) deliver wireless and security support. No matter what your market or device, Atmel offers a compelling solution that is tailored to your needs—today and tomorrow.

  • Atmel AVR 8- and 32-bit Microcontrollers — Atmel AVR® 8- and 32-bit MCUs deliver a unique combination of performance, power efficiency, and design flexibility. Optimized to speed time to market—and easily adapt to new ones— they are based on the industry's most code-efficient architecture for C and assembly programming. The extensive AVR portfolio, combined with the seamlessly-integrated Atmel Studio development platform, makes it easy to reuse knowledge when improving your products and expanding to new markets.
  • Atmel | SMART ARM-based Microcontrollers — In addition to a wide range of industry-leading ARM926™—as well as ARM7™ and ARM® Cortex®-M0+, M3 and M4—based Flash MCUs, Atmel offers ARM Cortex-A5-based MPU solutions. This broad portfolio of 32-bit ARM-based solutions can meet the needs of virtually any device or marketplace. Flexible and highly integrated, Atmel | SMART ARM-based solutions are designed to optimize system control, wired and wireless connectivity, user interface management, low power and ease of use.
  • 8051 Architecture Microcontrollers — Atmel's rich portfolio of microcontrollers based on the 8051 instruction set combines proven technology with the latest features and functionality. Developers can choose from 8-bit microcontrollers based on the powerful, low-power single-cycle AT89LP core, as well as MCS-51 industry-standard socket drop-in devices — all featuring advanced flash memory technologies.

Building on a Long Tradition of Innovation

Atmel is a global industry leader in the design and manufacture of microcontrollers and related system solutions, including capacitive touch solutions, advanced logic, mixed-signal, nonvolatile memory, and radio frequency (RF) components. Leveraging one of the industry's broadest intellectual property technology portfolios and backed by a comprehensive ecosystem, Atmel enables developers to develop complete solutions for industrial, consumer, security, communications, computing, and automotive markets.

Developers have the option of combining Atmel microcontrollers with industry-leading Atmel touch technology. Atmel technology for touchscreens and fixed-function buttons, sliders and wheels provides a rich user experience with unparalleled performance, while minimizing power consumption. The Atmel QTouch® Suite provides tools for implementing Atmel buttons, sliders and wheels technology into a variety of applications. Combine your microcontroller designs with our CryptoAuthentication™ devices for an added level of security against hackers and cloners.

Applications for Atmel Microcontrollers