• State TI Thinks Resolved
  • Locked Locked
  • Replies 1 reply
  • Answers 1 answer
  • Subscribers 20 subscribers
  • Views 249 views
  • Users 0 members are here
Support feedback
Options
Options
Related

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.

Original question:

TXB0108: SD card SPI working intermittently - MISO line

TXB0108: Is there the minimum time to change signal direction?

Kazuya Nakai59
Guru 21595 points
Part Number: TXB0108

 One of my customers is evaluating TXB0108 for their next products.

 They want to know what the minimum time of pulling up/pulling down to change signal direction of TXB0108 is.

  Is there the minimum time to change signal direction?

 Your reply would be appreciated.

 Best regards,

 Kazuya Nakai.

  • 0
    TI__Guru 62200 points
    Kazuya san,

    There is no minimum for signal change timing. It will be based on the system design to avoid the bus contention as much as possible.
    You could also refer to the datasheet timing specs tdis and ten referring to the OE pin assertion to A/B timing.
    With this, it will ensure that the device is disabled during direction change scenarios.