CPU Core


Proven Technologies. Rich Innovation. A Perfect Fit for Your Application.

Atmel® microcontrollers deliver a rich blend of highly efficient, integrated designs, proven technology, and groundbreaking innovation that is ideal for today’s advanced applications. Building on decades of experience and industry leadership, the Atmel proven architectures are optimized for low power, high-speed connectivity, optimal data bandwidth, and rich interface support. A wide variety of configuration options enables developers to 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. No matter what your market or device, Atmel offers a compelling solution that is tailored to your needs—today and tomorrow.


Atmel Microcontrollers

AVR Solutions

Atmel AVR® 8- and 32-bit microcontrollers 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 makes it easy to reuse knowledge when improving your products and expanding to new markets. Learn More

ARM-Based Solutions

Atmel offers a wide range of industry-leading AT91SAM® ARM-based Flash MCUs and eMPU solutions. This broad portfolio of 32-bit ARM® solutions can meet the needs of virtually any device or marketplace. Flexible and highly integrated, Atmel ARM-based solutions are designed to optimize system control, wired and wireless connectivity, user interface management, low power, and ease of use. Learn More

8051-Based Solutions

The rich Atmel 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 technologies.  Learn More

MCU Wireless Solutions

To support today's increasingly connected applications, Atmel offers a complete line of IEEE 802.15.4-compliant and ZigBee® certified wireless solutions. They are based on the rich Atmel family of RF transceivers, AVR and ARM microcontrollers, as well as single chip wireless microcontrollers. Learn More


Reference Material

Below is a selection of Atmel datasheets and other documents for your reference.

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SAM3S Series Preliminary Summary (64 pages, revision BS, updated 8/10)
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AT32UC3A Series Preliminary Summary (98 pages, revision H, updated 3/09)
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AT89LP213/214 (98 pages, revision E, updated 11/10)
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ATmega128RFA1 Preliminary Summary (13 pages, revision A, updated 12/09)