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Thread: 16F84A - 4MHz or 20MHz?
www.piclist.com/techref/microchip/devices.htm?key=16F
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face BY : David VanHorn email (remove spam text)



At 11:40 AM 11/6/00 -0800, William Chops Westfield wrote:
>    If all the chips are 20 MHz, then why not just drop the lower
>    speed grades from the product lineup?
>
>Like they do in the wintel pc market.  Shudder.  Ask an embedded
>manufacturer how they feel about components with 6-month lifetimes,
>sometime.  Dropping products from a lineup is a a terrible thing to
>do, even if the new part is theoretically fully backward compatible.

If there's compatibility issues from one speed grade to the other, beyond
the xtal speed, then they can't have been produced from the same masks, and
all as intended to be 20 MHz parts.


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Subject (change) 16F84A - 4MHz or 20MHz?

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