Smart reset ICs

18 April 2012 Analogue, Mixed Signal, LSI

STMicroelectronics introduced a new generation of its Smart Reset chips to provide a safe, convenient and intuitive means of resetting ‘frozen’ gadgets.

The STM6524 has two inputs that connect to a selected pair of buttons on an electronic gadget. When these buttons are held down simultaneously for a manufacturer-specified time (from 0,5 to 10 seconds), the IC sends a reset signal to the main processor. The combination of two inputs and programmable delay time effectively prevents accidental resets. ST is also introducing a new single-assert Smart Reset IC, the STM6519, which targets single-button electronic devices, with a similar programmable delay reset. The ICs also integrate a dedicated test mode to improve device testability.

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