microchip claim the 16F84A to be a drop in replacement, if u read the datasheet for teh 84A there is actually a list of differnces, it can run twice as fast, and there are some almost bug fixes.
Most code can just be whacked onto an 84A with no difficulty at all.
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on a side note, anyone care to tell me y people like the 84A so much?! i just don't see y, for most projects it has either too many or too few pins, no internal osc etc.
i think the 12F629 should be used more 5 gpio pins, + 1 only input.
most things i find thats all i need, its cheap int osc. dac version available.
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