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HDC1000 SEREAL ID

Kuramochi Tadahiko
Guru 28715 points
Other Parts Discussed in Thread: HDC1000

Hi,

The SERIAL ID[7:0] is 8 bits on the datasheet.

But Serial Id bits[15:7] are 9 bits.

Is  Serial Id bits 8bits[15:8]?


Thanks,

Kuramochi

  • 0
    TI__Expert 7220 points
    Hi Tadahiko,

    Moved this topic to the Humidity Sensors forum.

    -Michael Wong
  • 0
    Guru 28715 points
    I'm waiting for answer.

    Kuramochi
  • 0
    TI__Expert 5145 points

    Hi Kuramochi-san,

    Thank you for pointing out this question.

    The HDC1000 serial number dimension is actually composed by 41 bits.

    The correct serial number registers description is then the following:

    • Register 0XFB
    Name Registers Description
    SERIAL ID[40:25] [15:0] Serial ID bits Device Serial Number bits from 40 to 25 (read only)

     

    • Register 0XFC
    Name Registers Description
    SERIAL ID[24:9] [15:0] Serial ID bits Device Serial Number bits from 24 to 9 (read only)

     

    • Register 0XFD
    Name Registers Description
    SERIAL ID[8:0] [15:7] Serial ID bits

    Device Serial Number bits from 8 to 0 (read only)
    [6:0] Reserved

    Reserved, always 0 (read only) 

     

    We are going to update the HDC1000 Datasheet with the correct information as soon as possible.

    Thank you again, and sorry for any inconvenience.

    Best regards,

    Carmine Iascone