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GPIO Maximum current Imax

Posted: Sat Jan 17, 2015 5:42 am
by GeoNomad
I see in the spec that it says:

Maximum Drive Capacity Imax 12 mA.

Is that the same whether source or sink?

Is that per pin, or for all pins total?

If per pin, what is the maximum for all GPIO pins together, as I doubt it is as much as 16 x 12 mA.

Thanks,
Peter

Re: GPIO Maximum current Imax

Posted: Mon Jan 26, 2015 11:17 pm
by GeoNomad
Is there no answer to this question?

Re: GPIO Maximum current Imax

Posted: Fri Jan 30, 2015 11:51 am
by Espressif_Kelly
Dear Sir,

1.12mA here refers to the source current and sink current is greater than 12mA.

2.12mA is for per pin and each pin is the same.

3. Drive capacity current of all GPIO pins total can be 16 x 12 mA.

Thanks for your interests in ESP8266EX!

Re: GPIO Maximum current Imax

Posted: Sun Feb 01, 2015 2:11 am
by GeoNomad
Thank you!

That is impressive. And useful.

Re: GPIO Maximum current Imax

Posted: Tue Nov 24, 2015 9:38 pm
by bjpirt
@Espressif_Kelly You said that "sink current is greater than 12mA." - do you have a figure for how much current can be sunk per pin?

Many thanks,
Ben

Re: GPIO Maximum current Imax

Posted: Mon Dec 14, 2015 10:22 am
by Espressif_Kelly
Dear Sir,

The sink current of GPIO is about 20mA.

Thanks.

Re: GPIO Maximum current Imax

Posted: Tue Mar 15, 2016 2:40 am
by danny8376
Espressif_Kelly wrote:Dear Sir,

The sink current of GPIO is about 20mA.

Thanks.


Is there any info about peak source current ?

Re: GPIO Maximum current Imax

Posted: Thu Mar 17, 2016 10:55 am
by Espressif_Kelly
Hi danny8376,

The maximum source current of GPIO is about 12mA.

Thanks.