The recommended alternative touch controller is ATMXT640UD.
The mXT640T uses the latest capacitive touch technologies that Microchip has designed for the highest-performance super phones and tablets. With a revolutionary adaptive-sensing architecture that features both mutual- and self-capacitance, it enables the highest performance with the industry s lowest power consumption.
With 640 nodes, the mXT640T touchscreen controller supports up to 8 inches for Android tablets, 7 inches for Windows 8 mobile devices, and up to 6.2 inches for devices with 1.5mm passive stylus.
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.