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AT42QT2640-AU
Microchip TechnologyCapacitive Touch Sensor - Up to 64 Inputs - SPI Interface - 11 b Resolution - 13mA, 4.75 to 5.25V Supply - 44-TQFP Package - Surface Mount. ...
描述
The AT42QT2640-AU is a digital burst-mode sensor, designed specifically for QMatrix layout touch controls; it includes all signal processing functions necessary to provide stable sensing under a wide variety of changing conditions. Only a few external parts are required for operation. The entire circuit can be built within a few square centimeters of single-sided PCB area. CEM-1 and FR1 punched, single-sided materials can be used for the lowest possible cost. The PCB rear can be mounted flush on the back of a glass or plastic panel using a conventional adhesive, such as 3M VHB two-sided adhesive acrylic film.
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