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SM28VLT32-HT: Rewrite memory location without erase

David Shaddock96
Prodigy 110 points
Part Number: SM28VLT32-HT

I see the SM28VLT32-HT cannot be erased above 125C but can new data be stored at an address location that already contains data?

  • 0
    Guru 316860 points

    The program current is specified for up to 210 °C. So it is possible to program bits, i.e., to change them from 1 to 0.

  • 0 in reply to Clemens Ladisch
    TI__Guru 62930 points

    David,

    It is possible to "reprogram" an already programmed address.  However, it is impossible to change a 0 to a 1.   This can only happen from the erase process.  Programming can only change a 1 to a 0.

    An an error will be generated if an attempt is made to change a 0 to a 1.

    Bit 2 of the quick status register will get set, indicating an "Invalid Data" error.

    If this answers your question, please click "This Resolved My Issue"
    Regards,
    Wade