Because of the Thanksgiving holiday in the U.S., TI E2E™ design support forum responses may be delayed from November 25 through December 2. Thank you for your patience.

  • State Resolved
  • Locked Locked
  • Replies 1 reply
  • Subscribers 33 subscribers
  • Views 107 views
  • Users 0 members are here
Support feedback
Options
Options
Similar topics

This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

DS100BR410: SMBus Pins when device is set to pin mode

James Gassner
Prodigy 20 points
Part Number: DS100BR410

Tool/software:

Good morning,

Is it acceptable to leave the SDA, SDC, and CS pins on the DS100BR410 device not connected when I have the component set to pin control mode? On the datasheet it has a note that says external pull-up resistor is required for the SDA pin, but I'm assuming that is only necessary when you utilize the SMBus interface.

Thanks in advance!

  • +1
    TI__Guru* 93670 points

    Greetings James,

    It would be a good idea or good design practice to have 2K to 5K pull ups to -un-assert or prevent noise from coupling into these signals. You might be able to get away with leaving them float but for a robust design suggestion is to put pull ups.

    Regards, Nasser