The recommended alternative touch controller is ATMXT640UD.
With 540 nodes, the maXTouch mXT540S touchscreen controller delivers optimal performance for Windows 8- and Android-based smartphones, superphones and tablets up to 7 inches.
The mXT540S controller offers enhanced touch algorithms translate into fast, seamless touch performance even with gloved fingers, fingernails or in the presence of moisture.
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.