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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 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



Atmel Product Line




New Atmel Products
Added 01/2012 Atmel AVR MEGAx 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 04/2011 Atmel SAM3U Cortex™-M3 Microcontrollers Learn More
Added 04/2011 Atmel ATmega128RFA1 Wireless AVR® Microcontroller 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



Featured New Atmel Products

Atmel AVR MEGAx Microcontroller Evaluation Kits

Atmel AVR MEGAx Microcontroller Evaluation Kits are a hardware platform to evaluate the Atmel ATxmega256A3BU and Atmel ATxmega128B1 microcontrollers. The kit offers a larger range of features that enables the Atmel AVR XMEGA user to get started using XMEGA peripherals right away and understand how to integrate the XMEGA device in their own design. The Atmel AVR XMEGA®-A3BU Evaluation Kit features a FSTN LCD display with 128x32 pixels resolution, analog sensors, an analog filter, an Atmel® AVR® ATxmega256A3BU microcontroller, and a battery backup. The Atmel AVR XMEGA®-B1 Evaluation Kit is easy to reprogram with just a USB cable and a pre-programmed boot loader, features an easy to debug code with PDI-based debugger/emulator, and can be used with Atmel® AVR® STK®600, Atmel AVR JTAGICE 3, ATMEL AVR JTAGICE mkII, and Atmel AVR ONE.

Atmel LED Drivers

Atmel LED Drivers are system-centric, mixed-signal LED driver ICs. They serve the broad-based and rapidly growing backlighting and solid-state lighting markets with applications that include LCD TVs, PC monitors, specialty panels (industrial, military, medical, avionics, etc.), and general illumination. Atmel LED Drivers utilize a proprietary and patented combination of analog and digital circuit techniques. Additionally, by delivering a system-centric approach, these advanced devices provide solutions for local and global dimming, power management, signal conditioning, and smart interfacing. This allows electronic equipment manufacturers to significantly enhance product features, while improving power efficiency, reliability, and cost/performance.

Atmel AT89LP52 8-Bit Microcontrollers

Atmel AT89LP52 8-bit microcontrollers (MCUs) are single-cycle devices with 8KB In-System Programmable (ISP) Flash. Atmel AT89LP52 MCUs feature 12-clock compatibility mode, 256 bytes of Flash data memory, and 256 bytes of RAM. These Atmel MCUs have an enhanced 8051 architecture that provides up to 20MIPS throughput at 20MHz clock frequency, dual data pointers, and 4-level interrupt priority.

Atmel Xplained Evaluation Kits

Atmel Xplained Evaluation Kits are designed to be plug compatible with all Atmel Xplain MCU boards, providing a wide range of microcontroller performance depending on the application needs. Atmel Xplained Evaluation Kits are interfaced via the I2C serial digital interface connected through a common header that is compatible with the full range of Atmel Xplain MCU boards.

Atmel ZigBit™ Series Wireless Modules

Atmel ZigBit™ Series Wireless Modules are ultra-compact, low-power, high-sensitivity IEEE 802.15.4/ZigBee® OEM modules based on Atmel's mixed-signal hardware platform. Atmel ZigBit™ Series Wireless Modules, which occupy less than a square inch of space, are designed for wireless sensing, control and data acquisition applications. These ZigBit modules eliminate the need for costly and time-consuming RF development and shorten time to market for a wide range of wireless applications. Based on a solid combination of Atmel's latest MCU Wireless hardware platform, the ZigBit offers superior radio performance, ultra-low power consumption, and exceptional ease of integration.

Atmel ZigBit™ Series Wireless Modules are compatible with the robust IEEE 802.15.4/ZigBee stack that supports a self-healing, self-organizing mesh network, while optimizing network traffic and minimizing power consumption. Atmel offers two stack configurations: BitCloud and SerialNet. BitCloud is a ZigBee PRO certified software development platform supporting reliable, scalable, and secure wireless applications running on Atmel's ZigBit modules. SerialNet allows programming of the module via serial AT-command interface.

Atmel ATmega128RFA1 Wireless AVR® Microcontroller

The Atmel ATmega128RFA1 wireless AVR® microcontroller (MCU) is an IEEE 802.15.4 compliant single-chip that combines the industry-leading AVR MCU and best-in-class 2.4 GHz RF transceiver to provide the industry's highest RF performance for single-chip devices with a link budget of 103.4dBm. The Atmel ATmega128RFA1 wireless AVR MCU features Wake-on Radio, 32-bit MAC symbol counter, temperature sensor, automatic transmission modes, 128-bit AES crypto engine, true random number generator, high data rate modes, and antenna diversity support. The Atmel ATmega128RFA1 MCU executes powerful instructions in a single clock cycle, allowing the device to achieve throughputs approaching 1 MIPS per MHz of clock cycle for optimized power consumption versus processing speed. The radio transceiver on the ATmega128RFA1 provides high data rates from 250 kb/s up to 2 Mb/s, frame handling, outstanding receiver sensitivity, and high transmit output power.

Atmel picoPower® Microcontrollers

Atmel picoPower® 8- and 32-bit low power, high performance Microcontrollers (MCUs) meet the tough requirements for portable and battery-operated applications. Atmel picoPower technology is found in the tinyAVR®, megaAVR®, AVR®, XMEGA™, and AVR UC3 MCUs. Atmel picoPower technology enables AVR MCUs to operate at the industry's lowest power consumption with 650 nA with an RTC running and 100 nA in Power Down sleep.

Atmel ATAVRRZ600 Evaluation Kit

The Atmel ATAVRRZ600 Evaluation Kit for the AT86RF family of radio frequency devices contains a 2.4 GHZ AT86RF230 and AT86RF231 transceiver as well as a sub gigahertz AT86RF212 transceiver. The Atmel ATAVRRZ600 Evaluation Kit also features two AVR® UC3 based host nodes that can be used to evaluate a point to point network connection. The Atmel ATAVRRZ600 radio board sports an Atmel standardized 10-pin connector that enables the RF boards to be connected to any AVR microcontroller. The RZ600 kit enables RF4CE, IEEE 802.15.4, ZigBee, and 6lowPAN network technologies to run on the full Atmel portfolio of low power AVR microcontrollers.

Atmel ATtiny13 AVR® 8-bit MCUs

These ATtiny13 AVR® 8-bit MCU devices from Atmel have advanced RISC architecture, 1-Kbyte in-system self-programmable Flash with read-while-write capabilities. Features include 64 bytes EEPROM and internal SRAM, six programmable I/O lines, 32 x 8 general purpose working resistors, one 8-bit timer/counter with prescaler and two PWM channels, as well as 22 general purpose I/O lines, debugWIRE on-chip debug system, and a programmable watchdog timer with separate on-chip oscillator.

Atmel AT86RF212 / AT86RF23x AVR® Transceivers

The Atmel AT86RF212 and AT86RF23x are low-power, high-performance AVR® RF transceivers that provide a complete radio interface between the antenna and the microcontroller. The AT86RF212 and AT86RF23x are true SPI-to-antenna solutions. The Atmel AT86RF212 700 / 800 / 900 MHz transceiver is designed for use with IEEE 802.15.4-2006, IEEE 802.15.4c-2009, ZigBee, 6LoWPAN, and ISM applications. The Atmel AT86RF230 and AT86RF231 2.4 GHz transceivers are designed for use with ZigBee, IEEE 802.15.4, 6LoWPAN, RF4CE, and ISM applications.

Atmel AT91SAM9M10 Embedded MPU

The Atmel AT91SAM9M10 multimedia-enabled high-performance embedded microprocessor (MPU) combines user interfaces, video playback, and connectivity. The AT91SAM9M10 is an ARM926-based device running at 400MHz. This Atmel MPU includes a hardware video decoder, a 2D accelerator, an LCD controller, a resistive touchscreen, a camera interface, audio, Ethernet 10/100, and high-speed USB and SDIO. The Atmel AT91SAM9M10 MPU is targeted at media rich display and control panels in industrial application segments, such as home and commercial buildings, POS terminals, entertainment systems, Internet appliances, and medical.

Atmel AT91SAM9G45 Microprocessor

The Atmel AT91SAM9G45 embedded microprocessor is designed to provide a high-performance processor solution with high flexibility for general and multimedia-oriented applications. The Atmel AT91SAM9G45 is based on the integration of an ARM926EJ-S processor with fast SRAM and a wide range of peripherals. This Atmel microprocessor (MPU) features efficient clock gating that greatly reduces power consumption under all conditions of use. The AT91SAM9G45 also provides internal multi-layer bus architecture associated with a multi-port DDR2, a 32-bit External Bus Interface, and 64 KB of internal SRAM that allows it to sustain high bandwidth required by its high speed peripherals. The hardware peripherals on the AT91SAM9G45 include a High Speed (480 Mbps) USB Device and Host with transceivers, a 10/100 Mbps Ethernet controller, a High Speed Multimedia Card interface, an LCD controller supporting STN and TFT displays up to 1289*860, a camera interface, and several communication peripherals.

Atmel AT32UC3L AVR®32 Microcontrollers

The Atmel AT32UC3L AVR®32 microcontroller is the industry's lowest power 32-bit MCU, featuring less than 0.48 mW/MHz in active mode executing real-life applications. The Atmel AT32UC3L is also the first 32-bit MCU to feature a built-in capacitive touch interface that makes the device suitable in a wide range of embedded applications. This Atmel AVR32 MCU family features picoPower technology that allows it to operate on less than 1.5 µA with the 32 KHz Real Time Clock active and below 100 nA with all oscillators stopped. The AT32UC3L features Atmel´s 1.6V technology, which keeps the MCU fully operational in systems with supply voltage ranging from 1.62 to 3.60V. The Atmel AT32UC3L also provides secure memory and a peripheral event system that eliminates interrupts processing.

Atmel SAM3U Cortex™-M3 Microcontrollers

Atmel SAM3U Cortex™-M3 Flash microcontrollers combine high-speed USB and an integrated transceiver for fast up/downloading of data, robust EMI tolerance, and plug-and-play high-speed serial interconnectivity. Atmel SAM3U MCUs feature a 96 MHz maximum operating frequency and a high data-bandwidth architecture based on a 5-layer bus matrix with 22 DMA channels and distributed memory. The SAM3U is touch-ready and offers native support for Atmel QTouch® technology for easy implementation of buttons, sliders, and wheels in your application. These Atmel MCUs are ideal for applications with intensive communications requirements, including high-speed gateways in industrial, medical, data processing, and consumer applications.

Atmel QTouch™ Sensor IC

The Atmel QTouchsensor IC family arms designers with robust, reliable capacitive touch controls used in economical and elegant touchscreens that respond to a wide variety of touch types and gestures. The Atmel QTouch IC family derives its robust and reliable characteristics from the signal processing in the decision logic, which eliminates false triggering due to electrostatic spikes or momentary unintentional touch or proximity. The sensors in the Atmel QTouch IC can drive single or multiple keys, and each key can be set for an individual sensitivity level. QTouch technology can be deployed in normal touch mode or high-sensitivity proximity mode. In proximity mode, highly sensitive charge transfer proximity sensing is used to detect an end-user's approaching finger and has the user interface interrupt the electronic equipment or electrical appliance to initiate a system function.





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