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Reset timer device enables one-button restart without battery removal

June 24, 2010 | Paul Buckley | 222901115
To address smartphone “locks-up” that require a restart, which often involves removing the battery, Fairchild Semiconductor’s FT8010 custom reset timer with a configurable time select pin is ideal.

The device offers mobile phone and smartphone designers a solution to reset the hardware when the device locks up, without having to remove the battery.

TheFT8010 enables a portable device to be reset at the touch of designated keypad function.
TheFT8010 – unlike discrete implementations that use two to three discrete devices – is a highly integrated, adjustable, single-chip solution offering 7.5 and 11.5 second reset options for design flexibility. This long delay period helps avoid unintended resets caused by accidental key presses. Additionally, the device has two identical reset inputs for single or dual button resetting capability.
The device also features two outputs: a push-pull output with 0.5 mA drive and an open-drain output with 0.5 mA pull-down drive. The FT8010 draws minimal ICCcurrent when inactive and functions over a wide power supply range of 2.0 V to 5.0 V.
TheFT8010 offers two industry-standard packages, the 2 mm x 2 mm MLP and the even smaller 1.4 mm x1.8 mm Ultrathin MLP package.

Availability and Pricing

Samples of the FT8010 are available now.  Delivery is eight weeks.  Price is 0.30 US Dollars.

Datasheet: FT8010

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