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TMP116: EEPROM Question for TMP116

Mickey Zhang
Genius 12080 points
Part Number: TMP116

Hi team,

The customer uses TMP116. The customer would like to get if he does not use EEPROM, then the device can measure the temperature.

If this is true,  for Figure 25. Internal Register Structures of the datasheet, the customer does not configure EEPROM 1 to 4 and only  configures

Temperature Register ,Configuration Register,TLOW Register and THIGH Register. Would you help me confirm this information?

  • 0
    TI__Mastermind 35895 points
    Hi Mickey,

    It's not necessary to configure TMP116. It will start making temperature measurements when it powers on. The temperature measurements can be retrieved from Register 0 Temperature.

    Thanks,
    Ren
  • 0
    TI__Mastermind 27645 points

    Hello Mickey,

    You are correct. If the customer doesn't want to use the EEPROM they can just set the configuration register, TLOW, and THIGH registers. They should not attempt to do it immediately after a reset though. 

    On reset the device will return these registers to the default values by programming them from EEPROM, which will take around 1.5 ms. During that process writes to these registers will be ignored, so if they are trying to change these values at reset they should check the status of the EEPROM_Busy flag to ensure the write operation will take. Section 7.5.1.1 of the TMP116 datasheet discusses this more. 

    Regards,

    Brandon Fisher