TMUX136: I3C solution request.

Mark Chen52

Expert 6845 points

Part Number: TMUX136
Other Parts Discussed in Thread: TMUX154E, , SN74CB3T3257

Hi Expert,

Customer would like to check does TI has solution for I3C HUB /I3C MUX / I3C level shift?

And could it support I3C high voltage(3.3V)?

Regards,

Mark

over 2 years ago

0 Tyler McGuire over 2 years ago

TI__Expert 3515 points

Hi Mark,

We have an FAQ that has recommendations for I3C mux selection and some general knowledge on the subject: [FAQ] What Analog Switch / Multiplexer should I use for I3C applications? The devices recommended (TMUX136 & TMUX154E) can support 3.3V signals.

The SN74CB3T3257 is a output level shifting mux that may work depending on the application. It steps down higher input signals to the VCC voltage level at the output.

Thanks,
Tyler

0 Mark Chen52 over 2 years ago in reply to Tyler McGuire

TI__Expert 6845 points

Hi Tyler,

Does level shift (SN74CB3T3257) can support I3C push pull mode?

Regards,

Mark

0 Tyler McGuire over 2 years ago in reply to Mark Chen52

TI__Expert 3515 points

Hi Mark,

Just to be clear the SN74CB3T3257 (and our analog mux portfolio in general), does not redrive the signal, it only passes what is input. If your application can support the RON drop and capacitance, then this device will work for I3C.

Thanks,
Tyler

Because of the holidays, TI E2E™ design support forum responses will be delayed from Dec. 25 through Jan. 2. Thank you for your patience.

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TMUX136: I3C solution request.