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MSP430F5247: Internal FLASH exceed erase / write times(10,000 or 100,000 times) Issue

erik lee2
Genius 3060 points
Part Number: MSP430F5247

hi

While the internal Info FLASH  exceed erase / write times(10,000 or 100,000 times), some bit can't be inverted the status.

but sometimes after a while, it can be inverted the status again.

Thus customer ask for what happen in the FLASH duing this condition? Why It seems not die forever immediately, but has a chace be alive back?

Customer wants me give him a offical explaination, thank you.

  • 0
    Guru 74080 points

    Hi Erik!

    This website may be interesting - just for some information.

    "When written to and erased during the normal course of use, the oxide layer separating the floating gate from the substrate degrades, reducing its ability to hold a charge for an extended period of time. Each solid-state storage device can sustain a finite amount of degradation before it becomes unreliable, meaning it may still function but not consistently. The number of writes and erasures (P/E cycles) a NAND device can sustain while still maintaining a consistent, predictable output, defines its endurance."

  • 0 in reply to Dennis Eichmann
    Genius 3060 points

    Dear Dennis,

    Thanks for your information.

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