> I am new to PICs and I emailing concerning the reliability of the 16F628's
> internal oscillator. Is it reliable enough to time the USART or am I crazy
> to even think about it?

You might get away with it (read: when you test it it will probably work,
especially if you tune your code a bit), but I would not want to be
responsible for the servicing of a product based on this idea, unless the
chips all run from a 5.00 Volt and are kept at a constant temperature.

Note that the datasheet of the (future) 12F chips suggests a much more
stable internal oscillator.

Wouter van Ooijen
--
Van Ooijen Technische Informatica: http://www.voti.nl
Jal compiler, Wisp programmer, WLoader bootloader, PICs kopen

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