TMUX1219: TMUX1219 for i2c signal

Hello and welcome to the forum!

So you certainly can use the TMUX1219 in this fashion. You could even use something like TS5A23159, which is a 2ch 2:1 so you can mux the clocks as well.

The only thing I would also recommend is a pull up on both sides of the mux (see https://www.ti.com/lit/an/slva704/slva704.pdf?ts=1672120460449&ref_url=https%253A%252F%252Fwww.google.com%252F). This is just so the controller will be in a known state when not selected, since it will be floating otherwise. 

Here is our FAQ on selecting the correct Mux for I2C. [FAQ] What Analog Switch / Multiplexer should I use for I2C applications? The list isn't all encompassing but it's a good starting place for some good recommendations. 

Let me know if this is clear or if you have any more questions.

Thanks!
Rami

Hi Rami

Thank you for replying.

Let me check one regarding Rp value.
After reading AR, I think master side Rp value can be same (or close)
as salve side resistor value, such like 2.2K.
Am I right?

Regards,
Koike