The recommended alternative touch controller is ATMXT336U. The mXT224S uses Microchip's patented capacitive touch technology for the highest-performance smart phones. With 224 nodes, the mXT224S touchscreen controller supports 1.5mm passive stylus, moisture robustness and superior noise immunity. Support: off the shelf maXTouch standard modules are available to help shorten development time and reduce risk. Microchip also has a strong selection of factory trained global touch sensor module partners to help support custom touch sensor and/or touchscreen display designs.