Cypress Semiconductor recently introduced its TrueTouch touch screen solution based on the PSoC programmable system-on-chip architecture. The TrueTouch offering includes a single-chip touch screen solution that can interpret up to 10 inputs from all areas of the screen simultaneously. This capability, known as ‘multitouch all-point’, enables designers to create new usage models for products such as mobile handsets, portable media players (PMPs), GPS systems and other products.
In addition to the multitouch all-point products, the TrueTouch family includes devices that perform traditional touch screen functions including interpreting single touches, and gestures such as tap, double-tap, pan, pinch, scroll and rotate.
Because of the flexible and programmable TrueTouch architecture, customers can choose to work with a wide variety of touch screen vendors and/or LCD module vendors to create their designs. In addition, this solution utilises the PSoC architecture’s ability to integrate additional functions such as driving LEDs, backlight control and I/O expansion. These functions, in conjunction with I²C and SPI communication options, allow for high system integration for touch screen systems.
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