TCA9617B: B side to A side

Shuji Ishiwata

Part Number: TCA9617B

Tool/software:

Hi All,

I have a question about the TCA9617B.

I want to convert I2C from 5V to 3.3V.
Is it possible to input to the B side and output from the A side?

Best Regards,
Ishiwata

+1 Clemens Ladisch over 2 years ago

Guru 323910 points

I²C is bidirectional; both sides are inputs and outputs.

+1 Tyler Townsend over 2 years ago

Hi Ishiwata,

Clemens is correct!

I2C is bi-directional. The A-side or B-side can be looked as the input or an output depending on which way you a driving the signal.

Regards,

Tyler

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