The CST11281A series chip has 1 to 4 touch button detection, which can be used to detect the touch actions of human hands on external touch buttons. The chips in this series have a high level of integration, requiring only a few external components to achieve touch button detection.

    The CST11281A SOP8 package series chip has 3 touch buttons for parallel output or 4 touch buttons for serial output. The SOT23-6 packaging series chips have 1 to 2 touch buttons that directly output touch status. The chip has a high power supply voltage suppression ratio, which can reduce the occurrence of button detection errors. This feature ensures that the chip still has high reliability in applications under adverse environmental conditions.

    The CST11281A series chips have a wide voltage operating range, low power consumption operating mode, industrial grade operating temperature range, automatic calibration function that adapts to the environment, and resistance to voltage fluctuations. They can provide a wide and simple range of touch button usage scenarios. Provides a simple and efficient implementation method for various touch button applications.