CC2510 GPIO sink/source current

Chris Murphy

Hello Support,

What is the GPIO sink/source current? I can't find this in the. I imagine the two LED pins P1_0 and P1_1 are 20+mA, but what about the rest? What is the total sink/source current for the chip?

Thanks,

Chris

over 13 years ago

0 Sverre over 13 years ago

TI__Mastermind 39860 points

You are correct. P1_o and P1_1 have 20 mA drive capability. The others are 4 mA.

0 Firefighter over 13 years ago in reply to Sverre

TI__Genius 12480 points

Chris,

Please also note that if you risk that your supply voltage (VDD) drops below 2.6V you should set the IOCFG1.GDO_DS to 1, to select output drive

capability to account for low I/O supply voltage VDD on pin DVD.

-Jonas

0 Chris Murphy over 13 years ago in reply to Firefighter

Intellectual 830 points

Thanks Jonas, I didn't know.

We are planning a spec of 2.0V to 3.6V, so this important. I didn't see much in the data sheet, so maybe you can help me. Am I correct in assuming this IOCFG1.GDO_DS bit can be set to 1 even when the voltage is higher... 3.6V?

Thanks again,

Chris

0 Firefighter over 13 years ago in reply to Chris Murphy

TI__Genius 12480 points

Yes you are correct.

Jonas

0 Wes Wirth over 13 years ago in reply to Firefighter

TI__Intellectual 1080 points

Hi Team,

What are the package power limtations? What about max I/O current at one time, per I/O port?

Regards,

wes.

0 Uwe7u over 13 years ago in reply to Wes Wirth

Prodigy 130 points

I think, this question should really be covered in more detail to fill the gap the datasheet obviously has. Are there any current limiters at the I/O ports or will trying to pull more than 4mA fry the chip ? Are there total package limitations ? Is it legal to run some I/O ports in parallel and run them with multiples of 4mA ? Is this 4mA available both for ground based and for V+ based loads ?

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CC2510 GPIO sink/source current