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Smart Reset ICs

ST’s smart reset  ICs extend the functional capacity of existing buttons so that users can reset their frozen device with a long push of one or two buttons simultaneously.  These devices integrate several useful features, such as:

  • No need for a specific reset button – an existing button or combination of buttons can be used
  • Customizable input delay time from 5 to 10 second, that ensures that inadvertent, short activation of the button(s) do not cause a system reset
  • Choice of a single button or two simultaneous buttons to signal a reset
  • Support for applications where the battery is unremovable
  • Very small packages (DFN and UDFN) for minimal impact on board size  

Smart reset brings a real value to battery operated applications

Smart reset™ ICs allow to reset a frozen or locked up electronic device without having to remove the battery or access a dedicated reset button by extending the functional capability of the existing buttons. Users can simply reset their frozen device with a long push of one SR1 or two SR2 buttons simultaneously, depending on the device configuration. With a programmable delay to avoid accidental resets, these ICs save space and cost for equipment manufacturers, and significantly increase convenience for the user.

Smart reset bring a real value to battery operated applications, such as wearable devices, whose human to machine interface is built up with a touch screen or just a few mechanical buttons (1 or 2 for ex). By providing hidden functionality, smart reset bring a significant contribution to product friendly design while preventing from end-user misuse or by adding easy access to extra features (not only limited to system reset, but also shortcut, data saving or synchronization, low power mode entry.)