eKT5205SO24义隆触摸IC芯片

Capacitive Touchpad Application specification provides details on touchpad application soluti based on eKT5205 microcontroller device. The system application supports up to maximum 12 touch butt which can be applied to One-Line type touch sensors. For function applicati, the system provides I 2 C Slave and Master interface communicati with host. You can apply the system protocol to obtain legitimate touch button data from I 2 C interface as well as attain complete control of the related peripheral components. The application supports capacitive touchpad with plastic or glass substrate. It can auto-calibrate the parameters for a wide range of capacitance on the touchpad sensor. 2 Features Touchpad Sensor: Power-on time: Stable time for operating < 500ms The dependable cover thickness: Type Min. ~ Max. Unit Plastic 1~10 mm Glass 1~10 mm Suggestion : under 15x15mm pad size Protocol operation mode support. Operating Voltage Range 2.8~5.5V at-25℃ ~ 65℃ Protocol Mode: Interface features: Standard I 2 C @100K bps, Fast @400K bps Up to 12 capacitive sensor butt Operating current: (@ 3.3V 8MHz) Mode Description Power Cumption Note Normal High scan rate without Sleep 3.4mA* @3.3V Low Power Idle & Normal modes (alternating) < 500uA* Dependent on user’s setting Sleep Deep Sleep < 15uA* - * These parameters are theoretical values only and have not been tested or verified.