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AM3352: Internal pullup/pulldown resistor tolerance

Ajeya Anand
Intellectual 365 points
Part Number: AM3352

Hello,

We are looking at the after-reset activity of the processor. I believe that once the processor is reset, weak pull up and weak pull down acts upon the pin to drive it to stable logic state. 

What are the tolerance ranges for GPIO0 (1) weak pull up resistor and (2) weak pull down resistor values in this case ?

Can you mention something like X+/-__ ohms ?

Thank you

  • 0
    TI__Guru**** 393215 points

    Look in section 5.7 of the AM335x Datasheet Rev. J. Parameters "Input leakage current, Receiver disabled, pullup enabled" and "Input leakage current, Receiver disabled, pulldown enabled" give the minimum, typical, and maximum current that flows across the resistor for the resp. VDDSHVx voltage. From there you can calculate the resistor value range.