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ST expands smart reset IC for frozen gadgets

Posted: 22 Feb 2012 ?? ?Print Version ?Bookmark and Share

Keywords:smart reset? portable electronics? consumer device?

STMicroelectronics N.V. (ST) has developed its line of smart reset chips with the roll out of a new generation of devices. The STM6519 and STM6524 claim to provide safe, convenient and intuitive means of resetting 'frozen' gadgets that include mobile phones, media players and other portable electronics.

Smart resets extend the functional capability of the existing buttons so that users can simply re-set frozen device with a long push of one or two buttons simultaneously, depending on device configuration. With the increasing popularity of touch screen devices, smart resets remove the need for extra buttons, saving space and cost for the equipment manufacturers, and significantly increasing convenience for the user, noted the company.


The IC features input delay from 0.5-10s.

Effective prevention of accidental resets is secured with the STM6524, ST's dual-assert smart reset IC. Its two inputs connect to a selected pair of buttons on an electronic gadget. When these buttons are held down simultaneously for a manufacturer-specified time, the IC sends a reset signal to the main processor. The combination of two inputs and programmable delay time effectively prevents accidental resets.

ST's STM6519 is a single-assert smart reset IC that targets single-button electronic devices such as tablets and e-readers with a similar programmable delay reset.

The smart reset ICs offers come in a smaller package size. The devices implement a customizable extended input delay time, from 0.5-10s that increases flexibility and enables manufacturers to distinguish their products through specific UI settings, indicated ST. The smart resets also integrate a dedicated test mode that improves device testability and slashes test costs.

The STM6519 and STM6524 smart reset ICs are available in volumes, with unit pricing at $0.242 and $0.338 respectively, in quantities of 1,000 pieces.

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