Can you use more than one PCA9547 on a single I2C Bus?

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Can you use more than one PCA9547 on a single I2C Bus?

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brianbartels
Contributor I

I wish to use up to four (4) PCA9547 I2C Multiplexers on a single I2C Bus.

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david_diaz
NXP Employee
NXP Employee

Hello Brian,

Thank you for writing.

Indeed, you may use more than one PCA9547 devices on the same I2C Bus.

Please note that it counts with 3 address pins (A0, A1 and A2) allowing up to 8 devices on the I2C-bus.

address pins.jpg

I hope this information helps.

Please let me know if you have any other question. I am glad to help.

Regards,

David

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