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LM87: About the waiting time (specifications) required from initializing the LM87 to reading the temperature

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Prodigy 30 points
Part Number: LM87

Could you please tell me how long it takes to read the CPU temperature after setting the LM87 sensor?

Please tell me how long it takes to read the temperature after completing the settings in the Configuration Register in (1) until the temperature can be read in (2).

■How to check the internal temperature of LM87
○Basic information
　SMBus Address: 5C/5Dh　
　Offset: 27h (Internal Temperature reading)
　datasheet: www.ti.com/.../LM87

○Confirmation method (via SMBus)
　(1) Write "01h" to Configuration Register 1 (40h)
　(2) Read Internal Temperature reading (27h)
*Example: 19h = 25℃

  • 0
    TI__Expert 6205 points

    Hi,

    After setting up LM87 you would have to wait for any ongoing conversion to finish and then the new conversion which will be made with the set configuration. This is a characterized parameter in the datasheet with a typical value of 0.28s.

    Best regards,

    Simon Rojas