Sensing platform combines capacitive,resistive touch

Sensing platform combines capacitive,resistive touch

The Xtrinsic touch sensing platform is offered as the first solution that combines gesture recognition on resistive screen technology and capacitive touch sensing in a single integrated circuit — making it ideal for applications involving control panels, human machine interface (HMI), keyboard replacement, automotive, point of sale terminals, signature capture devices, and kiosks. The Xtrinsic touch sensing platform enables the addition of up to four capacitive electrodes to a customer’s system – all packaged in a 5×5 mm, 32-pin QFN.

The platform includes standard x-y resistive touch screen detection with optional calibration and pressure detection on resistive screens. Gesture detection includes slide, two-touch pinch and expand, and two-touch rotate with four capacitive electrodes independent from the touch screen utilizing I2 C and UART communications protocols, as well as a user-configurable screen resolution.

The Xtrinsic capacitive and resistive touch sensing platform (CRTouch) will be included in the Tower System LCD development board. It expands on the company’s Ready Play solutions which integrate certified application functionality, allowing customers to add features while reducing development cost, simplifying design cycles and enabling scalability in applications and systems. (development board, $85 — available now.)

By Christina Nickolas

Freescale Semiconductor , Austin , TX
Information 800-521-6274
www.freescale.com/CRTouch