TCA9543A: part recommendation

Shreenidhi Patil

Expert 3206 points

Part Number: TCA9543A
Other Parts Discussed in Thread: PCA9518, TS3A5223

We have a requirement of I2C mux /switch. The channel selection must be through GPIO pins.

No of channels: 2

Speed: 100/400kHz

Kindly suggest the most suitable part for this.

over 5 years ago

0 BOBBY over 5 years ago

TI__Guru 58240 points

Hey Shreenidhi,

From our I2C portfolio, the only device which is an I2C switch that is controlled through GPO is the PCA9518 though its unusual for customers to use this device as it buffers the inputs and generates a static voltage offset when used to drive a signal.

I'll redirect this question to our multiplexer and signal switches group and see if they have better alternatives for you.

Thanks,

-Bobby