Parts Availability

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One of my criteria for selection of the XMGEGA was the apparent parts availability.

However, recently it seems more often than not, the parts I'm looking for have zero stock anyplace and have the long lead times or manufacturing delays with unknown times(atxmega256a3bu au, atxmega328e5 au). I could in some situation use the a3u but can not find any of those either.

Does anyone know - are these anomalies in the distribution system or is this a typical situation.

I do not need great volume at the time (100's) - if I did , I guess I would plan for these lead times.

thx

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Quote:
atxmega328e5
That's a wrong part number, either atxmega32E5 or atxmega8E5.

John Samperi

Ampertronics Pty. Ltd.

www.ampertronics.com.au

* Electronic Design * Custom Products * Contract Assembly

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you're right about the part atxmega32e5 (or 16e5 or even 8e5 - nada, nothing available).

but the point is the same - is this a temp condition? or is this the "new norm"? or am i just too naive and should know better?

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Try FindChips.
Seems to show some stock.
Package - QFP sometimes has less stock than QFN.

"Dare to be naïve." - Buckminster Fuller

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Not every part number exists in the wild. Try some variations, like different flash sizes or different packaging.

The A3BU is more specialized (and therefore less likely to be found at a distributor) than the A3U.

The E5 is a very new part, and to my knowledge, has not yet been stocked by anyone.

I don't start a design until I have seen the chips (especially Atmel chips) being stocked by Digi-key or Mouser. Before that, at least for my purposes, they don't exist.

Jeff Nichols

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Quote:
has not yet been stocked by anyone
Digikey had some atxmega32e5 stock, I got 100 TQFP.

467 atxmega16E5 TQFP and 895 atxmega8E5 TQFP in stock now. There have been a few thousands in stock in other packages, they seem to have gone now.

John Samperi

Ampertronics Pty. Ltd.

www.ampertronics.com.au

* Electronic Design * Custom Products * Contract Assembly

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Honestly, I haven't been paying much attention to the E5s, because any uC without USB is pretty much useless for my needs. All I know is that when I wrote my post there weren't any on findchips, though I forget exactly which part I searched for.

Jeff Nichols

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I like the 32 pin TQFPs: More pins and half the size of the 20 pin soic I've been using since time-out-of-mind.

If you don't know my whole story, keep your mouth shut.

If you know my whole story, you're an accomplice. Keep your mouth shut. 

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erg144 wrote:

However, recently it seems more often than not, the parts I'm looking for have zero stock anyplace and have the long lead times or manufacturing delays with unknown times(atxmega256a3bu au, atxmega328e5 au). I could in some situation use the a3u but can not find any of those either.

Looks like there are thousands of ATXMEGA256A3U-AU available at DigiKey:
http://www.digikey.com/product-s...

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thx for the heads up. Took a while, but looks like they are back on the shelves. Noticed Mouser has 2500 on order which should also be there soon.

I think someone must have purchased all available parts a while ago and we we had to wait for the production run.

Guess if I didn't have bad luck, I wouldn't have any luck at all.

thx again

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Just don't snatch all of them up. I'm going to be buying some of this same part number soon :D