Skip to main content
RRain.1
Associate
June 23, 2022
Question

What is the range of value of pull up resistor for LiS3DH for open drain outputs and how can we find the range?

  • June 23, 2022
  • 5 replies
  • 2878 views

10K Pull up is mentioned in the data sheet

    This topic has been closed for replies.

    5 replies

    Eleon BORLINI
    ST Employee
    June 24, 2022

    Hi @RRain.1​ ,

    did this thread solved your issue?

    Typically, I2C lines pull-ups range from 1kOhm to 40kOhm. 101kOhm is about in the center of this range. It's mostly related to the driving capability of the I2C pins.

    -Eleon

    RRain.1
    RRain.1Author
    Associate
    June 24, 2022

    I want to know the resistor value in kilo ohms but the value you mentioned is in kHz.

    Please clarify.

    Eleon BORLINI
    ST Employee
    June 24, 2022

    Sorry wrong unit measure from my side

    RRain.1
    RRain.1Author
    Associate
    June 24, 2022

    How 1 - 40 K range is obtained?

    Eleon BORLINI
    ST Employee
    June 24, 2022

    You might refer to documents like this.

    But in general the valued are determined at application level.

    -Eleon