It is important to know if this is in terms of processor count or if it is in terms of revenue from those sales. Of course that importance depends on why the question is being asked. But then I can't think of a reason why this question in either form would really be useful in an of itself.
Well, it must be really useful to the folks who pay Gartner big bux to do their research (for example, useful for the salescritters to employ whilst flogging their respective products).
Really? This conversation normally ends up with somebody quoting figures from the 'black blob' manufacturers that eclipse any of the catalogue sellers. Can't remember the names of the companies because they don't market to plebs like me. I think one has 'sun' in its name.
These are the companies that sell micros for 20 cents a pop, but have minimum order quantities of 20K+ units. Rip open your kids talking dolly and you will find one, but it won't be marked with anything that tells you what it is.
--=20
Regards, Richard.
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Yeah... every penny spent by everyone in a company is spent very wisely! I have seen managers that pay a few hundred a year (20 years ago) for this sort of stuff and treat it like a subscription to EDN. I am sure there are a few management types (especially with companies that show up in those reports) who find this info useful. But what use do engineers have for knowing that brand X sells 20% more than brand Y? That doesn't tell me squat about the things I really need to know, like are they likely to be bought up or go under and the million technical and product oriented issues, like will they continue to make the part I want to use for the next 5 years?
Rick has a good point. What should matter is if the MCU you choose will be around in 5-10 years. That depends quite a bit on the company you pick, and the MCU you choose.
You also need to know that you can't use overly broad categories, since Mot and IBM both made PowerPC chips (at one time) but they weren't all drop-in compatible as I recall. Same thing goes for ARM, 8051, etc. Buyer beware - your silicon supplier has little or no incentive to make their chips drop-in compatible with another silicon supplier.
8051 did have multiple suppliers (at one time) with selected drop-in compatible chips, but even then there were situations where vendor A did something different than vendor B.
--Vinnie
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