>It doesn't cost as much to make a chip that will go 20MHz if you don't test
>it to 20MHz.

Ok, I buy this.


>On the other hand, they may have to do multiple tests are various voltages
>and temps to ensure 20Mhz operation across temp and voltage.

Which still leaves us here: If the chip says 4 MHz, it may die in strange
and unexpected ways, at anything higher than 4 MHz.



I wish someone from uChip would step in and make a definitive statement..


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