DS90UB953-Q1: GPIO input with 30K Pull down resistor

Ryan Wang

Part Number: DS90UB953-Q1

Dear expert,

UB953 GPIO input mode has 30K Pull down resistor. After bootup, I want to get high-Z for GPIO pin. If I set 0xE register to 0 to disable both input mode and output mode, Can I get high-Z for GPIO pin theoretically?

Great thanks

over 4 years ago

+1 Nicholas Darash over 4 years ago

TI__Mastermind 18755 points

Hello Ryan,

Yes the IO blocks are muxed, I believe you should see a high-impedance if you disable them both. This isn't validated though i don't think I can say for certain that is what will happen. May want to give it a try.

Regards,

Nick

0 Ryan Wang over 4 years ago in reply to Nicholas Darash

TI__Expert 7445 points

Nick,

Great thanks. I already tried. It is high Z.

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DS90UB953-Q1: GPIO input with 30K Pull down resistor