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Atmel Corporation is a global leader in designing, manufacturing and marketing advanced semiconductors including microcontroller (MCU), programmable logic, and nonvolatile memory. By combining these core technologies, Atmel meets the evolving and growing needs of today's electronic system design engineer through the production of general purpose and application specific system level integrated chips. Atmel's world class expertise and wealth of experience in system-level integration enable all of Atmel's products to be developed from their constituent blocks with minimum delay and risk.

Atmel QTouch Library

Atmel QTouch Library

Atmel offers a free QTouch® library for embedding capacitive touch buttons, sliders and wheels functionality into your general-purpose AVR® microcontroller applications. The easy-to-use QTouch Suite allows you to explore, develop and debug your own touch applications. If you prefer to use fixed functional capacitive touch controllers for your products, Atmel also offers fixed functional devices.

Providing several library files for each device, supporting different numbers of touch channels, the QTouch Library opens up for high flexibility and efficiency in your touch application. By selecting the library file supporting the number of channels needed, you will gain a more compact and efficient code using less RAM. The following number of channels is supported depending on your choice of microcontroller:


QTouch method - 4, 8, 16, 32 channels

QMatrix method - 8, 16, 32, 64 channels

Atmel QTouch Library Features
  • Capacitive touch sensing using patented charge-transfer signal acquisition for robust sensing
  • Support for a range of Atmel MCUs, tinyAVR®, megaAVR®, XMEGA™, UC3A, UC3B
  • Support for up to 64 sense channels
  • Supports both QTouch and QMatrix™ acquisition methods.
  • Flexible choice of touch sensing functionallity (keys, sliders, wheels) in a variety of combinations
  • Includes Adjacent Key Suppression® (AKS™) technology for the unambiguous detection of key events
  • Fully debounced reporting of touch keys
  • 256-level slider or wheels using only 3 channels
  • Common API across all library versions
 
View the Newest Products from Atmel

Atmel Product Line

Atmel AVR Xmega


Atmel New Products

Added 04/2014 Atmel SAMA5D3 Xplained Evaluation Kit Learn More
Added 01/2014 Atmel SAM D20 ARM® Cortex®-M0+ Microcontroller Learn More
Added 12/2013 Atmel AVR XMEGA E Series 8/16-Bit MCUs Learn More
Added 08/2013 Atmel SAM4N ARM Cortex-M4 Based MCUs Learn More
Added 07/2013 Atmel AVR® XMEGA® 8/16-bit Microcontrollers Learn More
Added 07/2013 Atmel SAMA5D3 ARM® Cortex™-A5 eMPUs Learn More
Added 06/2013 Atmel SAM4L ARM Cortex-M4 Microcontrollers Learn More
Added 03/2013 Atmel MCU Xplained Pro Kits Learn More
Added 03/2013 Atmel SAMA5Dxx ARM® Cortex™-A5 eMPU Evaluation Kits Learn More
Added 03/2013 Atmel SAM4E-EK Evaluation Board Learn More
Added 03/2013 Atmel I2C (2-wire) Serial EEPROMs Learn More
Added 02/2013 Atmel SAM9CN11 / CN12 ARM926™ MPUs Learn More
Added 01/2013 Atmel ATmega32U4 8-bit MCU with USB Controller Learn More
Added 11/2012 Atmel ATSAM4L-EK Evaluation Kit Learn More
Added 11/2012 Atmel SAM3 Cortex™-M3 Microcontrollers - EXPANSION Learn More
Added 11/2012 Atmel Atmel AT30TS75x Temperature Sensors & Starter Kit Learn More
Added 10/2012 Atmel CryptoAuthenication Chips - EXPANSION Learn More
Added 08/2012 Atmel ATtiny1634 8-Bit AVR® Microcontroller Learn More
Added 07/2012 Atmel AT86RF212 / AT86RF23x AVR® Transceivers EXPANSION Learn More
Added 06/2012 Atmel AVR® 32-Bit UC3 Microcontrollers EXPANSION Learn More
Added 05/2012 Atmel SAM4S ARM Cortex™-M4 Flash MCUs Learn More
Added 03/2012 Atmel CryptoAuthenication Chips Learn More
Added 03/2012 Atmel ARM926™ Core SAM9 MCUs Learn More
Added 01/2012 Atmel AVR xMEGA Microcontroller Evaluation Kits Learn More
Added 11/2011 Atmel LED Drivers Learn More
Added 11/2011 Atmel Xplained Evaluation Kits Learn More
Added 09/2011 Atmel AT89LP52 8-Bit Microcontrollers Learn More
Added 08/2011 Atmel ZigBit™ Series Wireless Modules - New At Mouser! Learn More
Added 05/2011 Atmel ATmega328 8-Bit AVR® MCUs Learn More
Added 04/2011 Atmel SAM3 Cortex™-M3 Microcontrollers Learn More
Added 04/2011 Atmel ATmegaxxxRFx Wireless AVR® Microcontrollers Learn More
Added 12/2010 Atmel AT32UC3L AVR®32 Microcontrollers Learn More
Added 08/2010 Atmel AT91SAM9M10 Embedded MPU Learn More
Added 06/2010 Atmel AT86RF212 / AT86RF23x AVR® Transceivers Learn More
Added 05/2010 Atmel ATAVRRZ600 Evaluation Kit Learn More
Added 03/2010 Atmel AT88SA1xx CryptoAuthentication™ ICs Learn More
Added 02/2010 Atmel AT91SAM9G45 Microprocessor Learn More
Added 10/2009 Atmel AT32UC3A3 Microcontrollers Learn More
Added 07/2009 Atmel ATAVRMC320 Motor Control Bundle Kit Learn More
Added 05/2009 Atmel QTouch™ Sensor IC Learn More
Added 04/2009 Atmel AVR® XMEGA™ Microcontrollers Learn More
Added 03/2009 Atmel AVR32 EVK1105 Evaluation Kit Learn More
Added 12/2008 Atmel ATtiny48/88 Microcontrollers Learn More
Added 06/2008 Atmel RZRaven Evaluation and Starter Kit Learn More
Added 05/2008 Atmel AVR® 32-Bit UC3 Microcontrollers Learn More
Added 04/2008 Atmel picoPower AVR® MCUs Learn More
Added 03/2008 Atmel ATSTK600 Starter Kit Learn More
Added 05/2007 Atmel ATMEGA8 and ATMEGA162 AVR® Microcontrollers Learn More

Atmel Featured Products

Atmel SAMA5D3 Xplained Evaluation Kit

Atmel's SAMA5D3 Xplained Evaluation Kit is a fast prototyping and low cost evaluation platform for Atmel’s SAMA5D3 ARM® Cortex®-A5 processor-based microprocessor design. It comes with a free of charge Linux distribution including Linux Kernel 3.10 (LTS), Linux Mainline and Yocto 1.5.1 support. Bare metal developers benefit from a complete C software package including many examples to get started fast. The board is also a perfect development platform for headless Android. The board comes with a rich set of ready to use connectivity and storage peripherals and expansion headers for easy customization. A USB device connector can be used to power the board as well as programming and debugging it.

Atmel SAM D20 ARM® Cortex®-M0+ Microcontroller

Atmel's SAM D20 ARM® Cortex®-M0+ Microcontroller (MCU) series builds on decades of innovation and experience in embedded Flash microcontroller technology. It not only sets a new benchmark for flexibility and ease-of-use but also combines the performance and energy efficiency of an ARM Cortex-M0+ based MCU with an optimized architecture and peripheral set. The Atmel SAM D20 series gives you a truly differentiated general-purpose microcontroller that is ideal for many low-power, cost-sensitive industrial and consumer applications. Key features include low power, peripheral flexibility, Atmel QTouch peripheral touch controller, and scalability.

Atmel SAM D20 Xplained Pro Evaluation kit

Atmel SAM D20 Xplained Pro evaluation kit is a hardware platform to evaluate the ARM Cortex-M0+  ATSAMD20J18 microcontroller. Supported by the Atmel Studio integrated development platform, the kit provides easy access to the features of the Atmel ATSAMD20J18 and explains how to integrate the device in a custom design. The Xplained Pro MCU series evaluation kits include an on-board Embedded Debugger, and no external tools are necessary to program or debug the ATSAMD20J18. The Xplained Pro extension kits offers additional peripherals to extend the features of the board and ease the development of custom images.

Atmel SAM4N ARM Cortex-M4 Based MCUs

Atmel's SAM4N ARM Cortex-M4 Based MCUs are a member of a family of Flash microcontrollers based on the high performance 32-bit ARM® Cortex®-M4 RISC processor. It operates at a maximum speed of 100MHz and features up to 1024Kbytes of Flash and up to 80Kbytes of SRAM. The peripheral set includes 3x USARTs, 4x UARTs, 3x TWIs, 1x SPI, as well as 1 PWM timer, 2x three-channel general-purpose 16-bit timers (with stepper motor and quadrature decoder logic support), an RTC, a 10-bit ADC (up to 12-bit with digital averaging) and a 10-bit DAC with an internal voltage reference. The SAM4N device is a medium range general purpose microcontroller with the best ratio in terms of reduced power consumption, processing power and peripheral set. This enables the SAM4N to sustain a wide range of applications including industrial automation and M2M (machine-to-machine), energy metering, consumer and appliance, building and home control.

Atmel AVR XMEGA E Series 8/16-Bit MCUs

Atmel's AVR® XMEGA® E Series 8/16-Bit MCUs are the first AVR XMEGA series with 32 pins that are available in the smallest 4mm x 4mm QFN packaging. These devices offer a set of new features not found in any other AVR XMEGA devices. In addition, the AVR XMEGA E microcontrollers (MCUs) are the most power efficient of all AVR XMEGA devices, truly demonstrating the potential of Atmel picoPower technology with an unmatched combination of memory size, low sleep current and short wake-up time. The series is ideal for real-time, low-latency applications, ballast and board controls, power supplies, DC-DC converters, LED drives, power management, and battery-drive products such as toys, watches and portable devices.

Atmel SAMA5D3 ARM® Cortex™-A5 eMPUs

Atmel SAMA5D3 embedded microprocessor units (eMPUs) are based on the ARM® Cortex™-A5 processor and operate at up to 536MHz (850DMIPS) at under 200mW, delivering a high-performance, low-power platform for cost-sensitive industrial and consumer applications. These Atmel devices are ideal for high-precision computing and fast data processing. The eMPUs feature a 64-bit internal bus architecture and 32-bit wide DDR controller running up to 166MHz that offers up to 1328MB/s of bandwidth. These devices also offer market-leading low power consumption of less than 200mW when running at maximum speed and under 0.5mW in low-power mode. The SAMA5D3 series also provides a comprehensive peripheral set for connectivity and user interface applications, state-of-the-art security, and low system cost.

Atmel SAM4E-EK Evaluation Board

Atmel's SAM4E-EK Evaluation Board is an evaluation kit for the rapid development of the Atmel SAM4E microcontroller. It is based on the integration of an ARM® Cortex™-M4 processor with on-board NAND Flash and a set of popular peripherals. This evaluation board is designed to provide a high performance processor evaluation solution with high flexibility for various kinds of applications.

Atmel SAMA5Dxx ARM® Cortex™-A5 eMPU Evaluation Kits

Atmel's SAMA5Dxx ARM Cortex-A5 eMPU Evaluation Kits are full-featured evaluation platforms for the Atmel SAMA5Dxx embedded microprocessors. Each consists of a main board, a computer module equipped with a SAMA5Dxx processor, and a display module. Each kit is supported by the SAMA5D3 Softpack, a free set of bare metal C examples, and is delivered with on-board demos for Lunix and Qt-based GUI. These kits allow users to extensively evaluate, prototype and create applications that require graphics, audio, mass storage, networking, connectivity and more.

Atmel SAM4L ARM Cortex-M4 Microcontrollers

Atmel SAM4L ARM Cortex-M4 Microcontrollers (MCUs) deliver the lowest power in active mode (down to 0.9µA/MHz) as well as sleep mode with full RAM retention (1.5µA) with the shortest wake-up time (down to 1.5µs). Atmel SAM4L ARM Cortex-M4 Microcontrollers offer picoPower® technology, highly efficient signal processing, ease of use and high-speed communication peripherals. SAM4L ARM Cortex-M4 MCUs are ideal for power-sensitive designs in the industrial, healthcare and consumer application areas.

Atmel SAM9CN11 / CN12 ARM926™ MPUs

Atmel SAM9CN11 / SAM9CN12 ARM926™ processor-based microcontrollers (MCUs) target cost-sensitive applications that require security features in addition to graphics LCD and user interface software. SAM9CN11 and SAM9CN12 expand Atmel's existing ARM® processor-based portfolio by offering an anti-counterfeiting solution. These ARM926 microprocessors support secure boot and a hardware cryptographic engine required for secured applications. These new devices also include an extensive set of communication peripherals with full-speed USB host and device, up to seven UARTS, multiple SPI, I²C, and one SDIO/SDCard/MMC interface. These Atmel devices support SDRAM for low system cost and DDR2 memory for more memory-intensive applications.

Atmel ARM926™ Core SAM9 MCUs

Atmel SAM9 Series of ARM926-based Microprocessors are built on the powerful ARM926™ core. Designed to complement the ARM926™ core, these flexible devices deliver a rich combination of peripherals in a highly integrated design. The high bandwidth architecture is based on a multi-layer bus matrix, multiple DMA channels and external bus interface to ensure internal and external data flows with minimum processor overhead. Integrated power management techniques preserve the power budget and reduce BOM cost.

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For additional information about Atmel Applications, visit the applications section of their website.

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