Question - micro timer IC

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GH Crash

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I have an idea floating around in my head but everything depends upon finding a micro size timer chip. The timer just has to turn on/off a MOSFET. By micro, I mean a chip smaller than a postage stamp.

Does anyone know of a micro size low voltage IC timer? All I need is the part number of such a timer, or where to I might find out more information about micro timers.


Thanks for any help you can give.

George
 

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ATTINY85 has this package -



W/O using a xtal ATTINY85 has this accuracy -






Regards, Dana
 

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Not to spoil the adventure aspect of this, but have you looked for small timers on eBay, Google's photos, etc.?

Or the kitchen gadgets aisle at MartMart? I have a bunch of little $0.99 kitchen timers in my lab, LCD and buttons, guts are probably your postage stamp size, one watch battery.

Strip it and connectorize the LCD and pushbuttons as a "programming fob", lose the piezo element (its drive might run you a photoMOS?) and you've Muntzed it good.

Like a sculptor who "chisels away everything that's not art". Sorta.
 
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