[Gumstix-users] Re:Max current capability of the GPIO pins

[Thomas L. <tho...@gm...>]

Hi Craig

Thanks for your reply.

Yes, I did see section 4.4 of the Electrical specification. But if you 
look closely, you'll see that the important values are missing.

For example, IOH_H and IOH_L. Neither the TYP or MAX values are present.

I've been through the rest of the document and there is no other 
mention of I/O current that I could find.

I wonder if the I/Os have stress protection?

Regards

Tom

On Apr 5, 2005, at 10:54 PM, 
gum...@li... wrote:

> Looks like section 4.4 of the "PXA255 Processor Electrical, Mechanical
> and Thermal Specification" has it, available here.  If not that
> section, the info you're looking for is probably elsewhere in that doc.
>
> http://www.intel.com/design/pca/products/pxa255/techdocs.htm
>
> C
>
> On Apr 5, 2005, at 8:05 AM, Tom wrote:
>
>> Hi
>>
>> Ive looked on the Wiki and the Intel docs but am unable to find the
>> maximum current capability of the GPIOs! Im guessing that each is
>> different depending on its intended purpose?
>>
>> Im running an LED at 6mA using IRTX (GPIO47)  with no issues but it
>> would be nice to know the absolute max on these for future reference.
>>
>> Anyone know?
>>
>> Tom
>>
>>
>> -------------------------------------------------------
>> SF email is sponsored by - The IT Product Guide
>> Read honest & candid reviews on hundreds of IT Products from real
>> users.
>> Discover which products truly live up to the hype. Start reading now.
>> http://ads.osdn.com/?ad_id=6595&alloc_id=14396&op=click
>> _______________________________________________
>> gumstix-users mailing list
>> gum...@li...
>> https://lists.sourceforge.net/lists/listinfo/gumstix-users
>