TXS02324: can we nest this switch to build a 4:1 mux

Aaron Holtzman1

Part Number: TXS02324

Are there any non-obvious issues when nesting the TSX02324 to build a 4:1 mux? Or should we build it out of discrete muxes instead?

over 3 years ago

0 Dylan Hubbard over 3 years ago

TI__Mastermind 44665 points

Hey Aaron,

I'm not quite sure what you are meaning by this, do you have a drawing to show what you are trying to implement? Its important to note this isn't just a simple MUX and the auto direction sensing architecture could likely cause issues with what you are trying to implement.

0 Aaron Holtzman1 over 3 years ago in reply to Dylan Hubbard

Prodigy 30 points

Yes, the auto sensing part is the thing that is concerning me. The idea is to build a selection tree, so in the case of a 4:1 mux, you would have 3 TSX02324. The first layer would switch between the other two switches, with each having two SIM cards hung off them.

If this won't work, does TI have a recommended solution for multiplexing more than two SIM cards?

0 Clemens Ladisch over 3 years ago in reply to Aaron Holtzman1

Guru 279980 points

Do you actually want auto sensing or level translating? If not, just use a plain mux.

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TXS02324: can we nest this switch to build a 4:1 mux