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DS64BR401 - Internal Pull-up / Pull-down resistor value

Kawai
Guru 19785 points
Other Parts Discussed in Thread: DS64BR401

Hi team,

Please tell me the DS64BR401 internal pull-up or pull-down resistor value which some pins have inside.

 

For example,  AD0 - AD3 pins have internal pull-down when using in SMBus mode.

One could use the device leaving the pins open, but we would like to know how strong the pull down is designed.

Depending on the resistor value, our customer may need to connect to GND instead of leaving the pins open, for their design rule.

  • 0
    Guru 19785 points

    I found that there were notes under, Equalizer and DeEmphasis setting table in page 12-13.

    It says,

    F=Float (don't drive pin, each float pin has an internal 50K Ohm resistor to VDD and GND)

     

    It seems that pull down resistor for pin 46,47,53,54 (ADx) are also 50K Ohm, am I correct ?

    We want to understand the robustness of the internal pull down.