CPT112S

TouchXpress™ Family CPT112S Data Sheet The CPT112S device, part of the TouchXpress family, is designed to quickly add capacitive touch via an I2C interface by eliminating the firmware complexity and reducing the development time for capacitive sensing applications. Supporting up to 12 capacitive sensor inputs in a 3 mm x 3 mm QFN package, the CPT112S is a highly-integrated device that interfaces via I2C to the host processor to provide a simple solution for adding capacitive touch. The device also comes with advanced features like moisture immunity, wake-on proximity, and buzzer feedback for an enhanced user experience. No firmware development is needed, and all the capacitive touch sense parameters can be configured using a simple GUI-based configurator. By eliminating the need for complex firmware development, the CPT112S device enables rapid user interface designs with minimal development effort. The CPT112S device is ideal for a wide range of capacitive touch applications including the following: Home appliances Instrument / Control panels White goods Medical equipment Consumer electronics Lighting control KEY FEATURES No firmware development required Simple GUI-based configurator 12 Capacitive Sensor inputs with programmable sensitivity Configurable multi-button slider I2C interface to communicate to the host Lowest power capacitive sense solution Active — 200 µA Sleep — 1 µA Wake on proximity Superior noise immunity: SNR up to 270:1...