Controller extends touch-screen features
With smartphones and tablets leading the way, consumers now expect touch-screen interfaces on most new portable embedded products. With high-volume consumer applications such as GPS, gaming consoles, and digital still cameras in mind, Atmel released the Atmel maXTouch mXT112E controller optimized for a wide range of 2.8″ to 3.5″ touch screens. The new controller enables single-layer touch screens and features advanced signal processing algorithms to lessen interference from LCD displays and environmental or charger noise. The Atmel maXTouch mXT112E provides 12-bit x 12-bit touch position reporting along with a report rate of up to 250 Hz. For advanced gestures, the controller allows up to four simultaneous touches and rejects unintentional touches caused by a gripping hand. The controller can also support a narrow passive stylus input even while the user’s hand is resting on the screen in a natural writing position. The maXTouch mXT112E is available now and comes in a 5 mm x 5 mm x 0.6 mm Quad Flat No leads (QFN) package.