Building on 15 years of touch innovation, Atmel® maXTouch® technology delivers next-generation controller capabilities for touchscreen applications, including both superior performance and low power consumption. It enables touch interfaces that identify, qualify and track the user’s contacts with exceptional precision and sensitivity. With maXTouch unlimited touch, users enjoy a sophisticated interface that is smart enough to ignore unintended touches. All of this enables peerless touch interfaces that are intuitive, flexible, reliable, and battery-friendly.
Atmel touchscreen chips are small enough to fit the most compact mobile devices and powerful enough to accommodate the larger screens on products such as digital tablets and Windows 8 compliant notebooks and Ultrabooks.
| Device Family |
Summary Benefit |
Applications |
Technologies |
Key Parameters |
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Use advanced touch gestures with simultaneous touch and stylus operation on touchscreens Clearly see what is being touched with 1mm stylus tip Write naturally with excellent palm rejection support |
Tablets and handsets with touchscreens up to 13.3" |
maXStylus active stylus touch functionality |
Frame rate up to 140Hz High resolution of 600ppi Pressure sensing Button functionality |
Use maXStylus™ technology with maXTouch® controllers to add high-performance stylus capability to touchscreen solutions. maXTouch and maXStylus technologies together simplify system design through a single sensor that supports both touch and the active stylus. A stylus essentially gives the user a convenient option for easier touchscreen navigation and content creation, such as writing, drawing and note-taking.
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Dual architecture
Up to 16 touches
Fast response time
Smart processing
Native FLM support
Sensor hub functionality
Windows 8 and Intel Ultrabook compliant |
Touchscreens up to 23" |
Touch technology
maXFusion technology |
112 to 3432 nodes
8/16-bit or 32-bit microcontroller technology
Up to 3X enhanced performance
Up to 6X lower power
Lower cost, easier design through single-chip solution |
Atmel maXTouch touchscreen controllers combine patented Atmel charge transfer technology and either an 8/16-bit or 32-bit Atmel AVR® microcontroller to provide unlimited touch (up to 16 touches). This solution delivers fast response time and smart processing of a capacitive touch image, while accurately regenerating and reporting the user’s interaction with the touchscreen. Multitouch performance not only identifies and individually tracks touches but also allows a range of built-in gestures to be reported to the host processor. A high signal-to-noise ratio (SNR) enables the device to work well with fingertip touch as well as a conductive stylus. It has been designed to work in demanding, rapidly changing environments. Because only the touchscreen area is touch-sensitive, you have the freedom to place the chip on the main board or adjacent to the sensor. Integrated maXFusion™ sensor hub technology fuses sensor data from devices such as accelerometers, gyroscopes and magnetometers to deliver real-time motion sensing information. This capability provides a visibly superior experience when using gaming, navigation or virtual reality applications. Integrating maXFusion technology with maXTouch devices offers the added benefits of reduced system cost and lower power consumption.
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High-performance interface microcontroller that provides single- and dual-touch gestures for intuitive user interfaces |
Touchs keypads with buttons and sliders |
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Up to 48 individually configurable keys |
For touchscreen applications where an unlimited-touch solution is not required, Atmel offers two-touch and single-touch microcontrollers. Versatile two-touch microcontrollers use Atmel QTwo® technology to provide both dual-touch and single-touch functionality for intuitive user interfaces. These solutions can be configured as a combination of touchscreen, sliders/wheels, and keys (with Atmel Adjacent Key Suppression® technology providing precision touch functionality for small keypads). Designers can choose these options: - A two-touch touchscreen providing two fully-independent and trackable touch coordinates
- A touch keypad with up to 32 individually configurable keys
- Up to six independent touch slider controls
- A hybrid panel employing multiple options
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Easy-to-use touchscreen microcontroller solution for single-layer sensor implementations |
Single-touch capacitive touchscreens |
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Up to 16 node I2C interface |
Atmel offers two-touch and single-touch microcontrollers for touchscreen applications where an unlimited-touch solution is not required. The single-touch microcontrollers are designed especially for single-layer sensor implementations on super-thin, high-performance touchscreens. These ICs are based on Atmel QField™ technology, a system approach that helps reduce cost, power consumption, and time to market. QField technology includes the touch microcontroller, a selection of tested and qualified sensor and tail designs, and integrated software for generating standard touch gestures.
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Single layer, shieldless sensor Up to 16 touches Gloved operation Embedded gestures |
Center stacks Navigation systems Radio HMI Entertainment HMI |
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Screen sizes up to 10" Up to 768 nodes 150Hz touch response I2C interface |
The maXTouch® family—known for its superior performance and rich feature set—is now qualified for automotive applications, such as automotive touchscreens and touchpads used in center stack displays, navigation systems, radio human-machine interfaces (HMIs) and rear-seat entertainment systems.
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