What is the measurement resolution for touch coordinates in the mTouch™ ARxxxx Series?

The measurement resolution for touch coordinates is 10-bit. The measured values are shifted (multiplied by four) and reported in a 12-bit format. In the reporting protocol, the Least Significant coordinate bits, X1:X0 and Y1:Y0, will be zeroes. The resulting full-scale range for reported touch coordinates is 0 to 4095.

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The Microchip mTouch™ ARxxxx Series Resistive Touch Screen Controllers are not recommended for new designs. Visit microchip.com/touch for our latest products.

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