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TMP1075: How to set slave address?

Genius 9580 points

Replies: 2

Views: 44

Part Number: TMP1075

Hi Experts,

The datasheet says to set pins to configure the slave address as below.

I could not understand what "SCL" or "SDA" in columns A0 stand for. Could you please give me an explanation how to configure the slave address?

Regards,

Uchikoshi

  • Hello Uchikoshi-san,

    In this table a 0 means you should connect the corresponding A2, A1, or A0 pin to ground, and a 1 means you should connect the corresponding A2, A1, or A0 pin to the supply voltage. 

    In the same way, you can connect the A1 or A0 pins to the SDA or SCL lines, and the TMP1075 will be able to detect this connection. 

    This allows us to provide more addresses than the 8 which are available in older devices such as the LM75. 

    Please let me know if you have any other questions. 

    Best Regards,
    Brandon Fisher

  • In reply to Brandon Fisher94:

    Hi Fisher,

    Thank you for your answer.

    Now I understood as below. TMP can distinguish which SCL or SDA pin is connected to each address pin by sampling SCL and SDA on every bus communication.

    Regards,

    Uchikoshi

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