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TMP102: cannot access address 4A

Part Number: TMP102

Dear Specialists,

My customer is evaluating TMP102 and encountered the problem.

I would be grateful if you could advise.


I have confirmed the operation by mounting TMP102 on the board, but ACK is not output even if I access address 4A.

ACK is obtained for addresses 48 and 49.

An ACK is obtained by accessing the unused address 4B.

It seems 4A and 4B are swapped.

The device marking is CBZ.

Bad operation occurred in 2 out of 2 samples.

I purchased SEN-13314 SparkFun Electronics | DigiKey from DigiKey and checked the phenomenon, but ACK was obtained correctly.

SEN-13314 SparkFun Electronics | DigiKey

What's wrong with it?

Could you please confirm the file below and advise.

TMP102_slave address confirmation .xlsx


I appreciate your great help in advance.

Best regards,