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Hopefully not anytime soon. I'll have to check out the app
note.
We have been using this family in volume since 1996 or so.
We use 10's of thousands of chips a year, and
aren't looking forward to replacing that family anytime soon, which was one
of the reasons that we picked Motorola in the first place.
There have been several process updates for the 56303, which have meant
selling us faster versions of the same chip for slightly less (but not as much
less as a new design).
It is always prudent to talk to a company rep before designing any
part in. Unfortunately many vendors have been know to "lie" about lifetimes of
parts (i'd be willing to mention names but not publicly for liability
purposes). Fortunately for us, Motorola has not been one. They did obsolete the
56824 processor not too long ago, but they still make many opcode
compatible devices. We ported our product to the 56826.
Howard
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