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August 20, 2025
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EEPROM Marking "Z531" orderable part number

  • August 20, 2025
  • 1 reply
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p5_0-1755709948637.png

Is anyone able to identify this TSSOP EEPROM from the package marking "Z531"?  I'm trying to determine an orderable part number.  Thanks.

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    Best answer by TDK

    2903Y marking matches LM2903YDT--Low-power dual voltage comparator.

    https://www.st.com/resource/en/datasheet/lm2903.pdf

     

    How sure are you that this is EEPROM?

    1 reply

    TDKAnswer
    Super User
    August 20, 2025

    2903Y marking matches LM2903YDT--Low-power dual voltage comparator.

    https://www.st.com/resource/en/datasheet/lm2903.pdf

     

    How sure are you that this is EEPROM?