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Thread: Add USB to your product in 10 minutes.
face BY : David VanHorn email (remove spam text)

At 03:16 PM 11/23/01 +1100, Don McKenzie wrote:
>Josh Koffman wrote:
> >
> > Are these chips bus powered? Do they provide a means to power your
> > project from the bus too?
>re http://www.dontronics.com/giga.html
>Basically yes, and yes.
>I don't have the specs in front of me Josh, but looking at the general
>power info in Jan Axelson's "USB Compete Book" a device requiring 100 ma
>is fine, something that needs 500ma will depend on the PC power supply,
>ie: is it a notebook?, and if it is a hub, is it self powered?

Half an amp is all you get, from a powered hub.
I don't know the number for an unpowered one.

Dave's Engineering Page: http://www.dvanhorn.org

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