• State TI Thinks Resolved
  • Locked Locked
  • Replies 1 reply
  • Answers 1 answer
  • Subscribers 34 subscribers
  • Views 291 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.

TCA9545A: Channel switching time

Hirotaka Matsumoto
Guru 27585 points
Part Number: TCA9545A

Hi all

Would you mind if we ask TCA9545A

Just in case, could you let us know follows?

<Question>
How much is channel switching time?
There is the description on the datasheet P15;
"When a channel is selected, the channel becomes active after a stop condition has been placed on the I2C bus."
So, we recognize that the channel becomes active after a stop condition has been placed on the I2C bus.
We assume that it is enough time to consider Tbuf = 1.3us?
(We also assume that it can complete to finish to switch the channel during Tbuf=1.3us.)


Kind regards,

Hirotaka Matsumoto

  • 0
    TI__Guru 72381 points

    Hello Hirotaka-san,

    "We assume that it is enough time to consider Tbuf = 1.3us?"

    That is correct. I do not actually have an exact number for you before the channel becomes active but I believe it should happen within the low nanosecond range (below 10ns) after the stop condition is recognized by our device.

    Thanks,

    -Bobby