Atmel QTouch Library Enables Customization of Touch Functions Across All AVR Products

Increased functionality and integration enable designers to embed touch interface technology quickly and efficiently

SAN JOSE, Calif., Sept. 28 /PRNewswire-FirstCall/ -- Atmel(R) Corporation (NASDAQ: ATML) today announced version 3.0 of the royalty-free Atmel QTouch(R) software library with up to 64 channels of touch support for all Atmel AVR microcontrollers (MCUs) and select 32-bit AVR32 UC3. The increased channel support, and wider range of supported microcontrollers, provide designers with several library files for each device to enable a more flexible and efficient design. By selecting the appropriate library file, designers can now gain a more compact and efficient code using less RAM.

The QTouch library also supports Atmel's patented charge transfer signal acquisition technology for robust sensing on the AVR and AVR32 MCUs. This technology allows QTouch to outperform other capacitive touch sensitive acquisition methods in electrostatic discharge (ESD) and electromagnetic compatibility (EMC), overlay thickness and signal-to-noise ratio. The QTouch library, combined with Atmel's AVR(R) development tools, can now provide a fast, easy path to a reliable, high-quality touch interface for our designers.

"Our customers continue to require software support for all AVR microcontrollers, especially for touch buttons, sliders and wheels solutions," said Arild Rodland, AVR Product Marketing Manager, Atmel Corporation. "The release of the new QTouch Library allows us to offer our customers superior touch technology for the full range of AVR and selected AVR32 UC3 devices. Furthermore, our customers can now select our tinyAVR(R), megaAVR(R), XMEGA(TM), AVR32 UC3A or UC3B device and add touch functionality easily to their design."

The QTouch library consists of pre-compiled object code binaries which can be configured individually as touch keys or combined in groups to form sliders or navigation functionality. The QTouch Library also allows full user customization and optimization of the touch function. The precompiled software libraries come with a defined application programming interface (API) that ensures easy integration with the customer code and is well suited for applications requiring a limited number of touch channels. It also offers a quick, easy solution for customers who want to embed touch functionality in their existing AVR microcontroller designs.

Availability and Pricing

The QTouch library is available now and can be downloaded from our touch software product page at


Atmel's QTouch Library product information is available at

For further information on Atmel's Touch Solutions, visit:

Information on AVR microcontrollers is available at

About Atmel

Atmel is a worldwide leader in the design and manufacture of microcontrollers, advanced logic, mixed-signal, nonvolatile memory and radio frequency (RF) components. Leveraging one of the industry's broadest intellectual property (IP) technology portfolios, Atmel is able to provide the electronics industry with complete system solutions focused on consumer, industrial, security, communications, computing and automotive markets.

(C) 2009 Atmel Corporation. All Rights Reserved. Atmel(R), Atmel logo and combinations thereof, AVR(R), megaAVR(R), tinyAVR(R), QTouch(R) and others are registered trademarks, XMEGA(TM) and others are trademarks of Atmel Corporation or its subsidiaries. Other terms and product names may be trademarks of others.

    Press Contact:
    Clive Over, Director, Public Relations. Atmel Corporation
    Tel: (+1) 408 436-4305, E-mail:

SOURCE Atmel Corporation

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