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funktown
PostPosted: Aug 31, 2011 - 09:50 PM
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Has anyone seen these for sale anywhere yet? They look very interesting...
 
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leon_heller
PostPosted: Aug 31, 2011 - 10:16 PM
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There don't seem to be any links to distributors on the relevant web pages, so they are probably vapourware.

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alexandera
PostPosted: Sep 01, 2011 - 01:03 AM
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Quote:

There don't seem to be any links to distributors on the relevant web pages, so they are probably vapourware.


This is incorrect, as I got samples for customers sitting on my table. But this is Australia, people walk upside down here.

Disclamer I am employed by dstributer
 
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pixel2001n
PostPosted: Sep 01, 2011 - 02:42 AM
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I have samples of them too, and I'm in the US. I haven't tried them yet, though.
 
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clawson
PostPosted: Sep 01, 2011 - 10:10 AM
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Exactly which model does anyone have samples of? I just tried a few of the "U" part numbers at both www.findchips.com and www.octopart.com and, to a man, all distributors showed no stock?

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pixel2001n
PostPosted: Sep 02, 2011 - 01:19 PM
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I put in a sample request on the Atmel site and their local sales rep got in touch with me. The model was the 32k A4 in BGA and QFN.

I imagine once the factory fulfills the existing orders things will start shipping to distributors. That's just a guess though.
 
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clawson
PostPosted: Sep 02, 2011 - 01:46 PM
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I tried Atxmegas2a4u at both findchips and octopart and both say that none of about 50+ distributors have stock?

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alexandera
PostPosted: Sep 05, 2011 - 05:33 AM
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Quote:

Exactly which model does anyone have samples of? I just tried a few of the "U" part numbers at both www.findchips.com and www.octopart.com and, to a man, all distributors showed no stock?


I am looking right now at the XMEGA128A3U, according to datecode they were manufactured on 27th week of 2011, which is July. I assume not avalable for generic distributer like digikey etc. and Atmel now supplying samples only through their reps.
 
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electronic.designer
PostPosted: Sep 18, 2011 - 06:43 PM
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http://www.stkcheck.com/evs/atmel/atmelheader2.asp?mfg=atmel&part=ATxmega32A4U

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leon_heller
PostPosted: Sep 18, 2011 - 06:58 PM
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There don't seem to be any in stock, though:

http://webapps.nuhorizons.com/storefron ... xmega32A4U

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ganzziani
PostPosted: Sep 19, 2011 - 02:04 AM
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I bought 3000 ATXMEGA32A4U-AU a few weeks ago from NU Horizons. Those 2880 are being shipped to me Smile

I can sell a few on my website

I am working on my next revision of the Xprotolab that will use these chips.

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ashokok
PostPosted: Sep 19, 2011 - 10:15 PM
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$ 3.5657 = $ 10 Smile


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ganzziani
PostPosted: Sep 19, 2011 - 11:11 PM
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ashokok wrote:
$ 3.5657 = $ 10 Smile P.Ashok Kumar

supply and demand

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ashokok
PostPosted: Sep 20, 2011 - 05:48 AM
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that's spirit of businessman keep it up.

P.Ashok Kumar
 
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angelu
PostPosted: Sep 22, 2011 - 06:43 AM
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The Communists saw it as a "crime against the People" and punished it very hard. (no longer these days)

By the way, on your schematic I did not see protection diodes for the USB data lines and no resistors for the LEDs. There is something magic that I did not notice ?

George.

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ganzziani
PostPosted: Sep 22, 2011 - 02:09 PM
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Thanks, I'll incorporate the protection diodes on the USB on my next revision.
I don't need the resistor for the LEDs because they will be driven with pulse width modulation. The output driver is current limited as well.

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pixel2001n
PostPosted: Sep 22, 2011 - 03:18 PM
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I'd be extremely wary of forgoing the ballast resistors on an LED. You have to worry about the forward current on the LED changing as a function of temperature, plus there's some variation from part to part.
 
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ganzziani
PostPosted: Sep 22, 2011 - 04:13 PM
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About driving LEDs without a resistor: On page 91 of the ATXMEGA32A4U manual, you will find Figure 36-19. I/O Pin Output Voltage vs. Source Current

Then cross the graph with the LEDs V/I curves:

http://www.kingbrightusa.com/images/catalog/spec/APT2012SGC.pdf
http://www.us.kingbright.com/images/catalog/SPEC/APT2012EC.pdf

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pixel2001n
PostPosted: Sep 23, 2011 - 03:07 AM
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Yeah, the red one should be between 13mA and 25mA. I wouldn't be satisfied with that sort of uncertainty. I guess your application isn't so sensitive, or is a one-off where you can control it. And that's not even taking VCC accuracy (and fluctuations) into account.
 
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electronic.designer
PostPosted: Oct 31, 2011 - 06:34 AM
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ATXMEGA32A4U is now available at mouser.com:

http://www.mouser.com/_/?Keyword=xmega32a4u&FS=True

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js
PostPosted: Oct 31, 2011 - 06:46 AM
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But only the BGA package, useable stuff like TQFP still not there. In theory:
Quote:
Estimated Ship Date

475 7/11/2011

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electronic.designer
PostPosted: Oct 31, 2011 - 07:02 AM
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So TQFP AU series only exist in datasheets and application notes and are not available in real world!

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fmaimon
PostPosted: Oct 31, 2011 - 07:46 AM
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electronic.designer wrote:
So TQFP AU series only exist in datasheets and application notes and are not available in real world!


ganzziani wrote:
I bought 3000 ATXMEGA32A4U-AU a few weeks ago from NU Horizons. Those 2880 are being shipped to me

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nwrightson
PostPosted: Oct 31, 2011 - 10:29 AM
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RS Components have them for $5.00
http://australia.rs-online.com/web/p/microcontroller/6963102/
 
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leon_heller
PostPosted: Oct 31, 2011 - 10:37 AM
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That isn't one of the new USB devices! They still seem to be vapourware.

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smileymicros
PostPosted: Oct 31, 2011 - 05:36 PM
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Why do you say that when ganzziani has them in stock?

They are NOT vaporware and will be in distributor inventory shortly.

Smiley

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leon_heller
PostPosted: Oct 31, 2011 - 05:43 PM
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He's only got 40 available!

I can't see anyone in their right minds going into production with them until they are available in quantity from distributors. They *are* vapourware.

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pixel2001n
PostPosted: Oct 31, 2011 - 05:47 PM
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and Mouser isn't a distributor?
 
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leon_heller
PostPosted: Oct 31, 2011 - 05:49 PM
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Mouser only has the BGA parts.

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smileymicros
PostPosted: Oct 31, 2011 - 09:10 PM
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Our definitions of vapourware differ. To me vapourware is something that has been announced but not made. Any company, even your favorite, has to go through a process of sampling, delivery to major clients, and shipping to distributors. The ATxmegaU parts in in that stream and will soon be available from distributors. If it was vaporware it never would have sampled, gazziani would never have seen the parts and Mouser wouldn't have the BGA parts. I'd recommend patience.

Smiley

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Rukus
PostPosted: Oct 31, 2011 - 09:22 PM
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I see that mouser has them but lead time is 12 weeks and you have to buy like 395 of them.


edit....wooops I see that others noticed too. These would be a great micro to play around with.
 
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ganzziani
PostPosted: Oct 31, 2011 - 11:21 PM
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So the big distributors will have them in stock soon? Then I must lower the price a bit. ATXMEGA32A4U

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smileymicros
PostPosted: Oct 31, 2011 - 11:36 PM
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Don't listen to me. I just say things like that to muss the fur of the PIC Cat. But I do remember when folks were bitching about the lack of some AVR and suddenly there were 20,000+ at DigiKey. Didn't stop the bitching but did prove that the pipeline works.

Smiley

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MarioRivas
PostPosted: Nov 01, 2011 - 01:22 AM
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smileymicros wrote:
Don't listen to me. I just say things like that to muss the fur of the PIC Cat. But I do remember when folks were bitching about the lack of some AVR and suddenly there were 20,000+ at DigiKey. Didn't stop the bitching but did prove that the pipeline works.

Smiley


Haha,I think his signature should come with a disclaimer: Under competitor's payroll -lol.

Seriously though, I think he lost street cred for generally being anti Atmel.
 
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condemned
PostPosted: Nov 10, 2011 - 12:18 PM
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Mouser no longer shows:
Quote:
Estimated Ship Date

475 7/11/2011

Is that a bad sign?
[I'm in the unusual situation (for me) of having a PCB ready and waiting, but no chip!]

[edit: 12/11/2011]
Apparently it wasn't a bad sign: They're back in stock at mouser! Hooray!
 
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