My customer wants to get the value of internal pull-up resistors in ADUC848.
As you know, SCLK and SDATA pin in ADUC848 have a weak internal pull-up.
But I can't find the value of these weak internal pull-up resistors.
Would you let me know the value of these weak internal pull-up in SCLK and SDATA pins?
Or would you let me know how to calculate these values of pull-up using patameters in ADUC848 datasheet?
Please advise me.
If you have any questions,please let me know.
This pull-ups are not qualified and can differ from part to part in a relative wide range. To measure the approx. value you can connect a additional resistor to ground and measure the current through it and then calculate the series resistor representing the on-chip pull-up.