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MSP430FR2422: Endurance of FRAM

prashanth k b
Prodigy 70 points
Part Number: MSP430FR2422

Hi,

I am using a variable called timestamp to keep track of time in seconds. This variable has to be updated every second. Can I use #pragma PERSISTENT and store the value of the variable in FRAM. 

If yes, how many write cycles is guaranteed.

  • 0
    TI__Mastermind 20025 points

    >> Can I use #pragma PERSISTENT and store the value of the variable in FRAM. 

    Yes. you can

    >> If yes, how many write cycles is guaranteed.

    according to data sheet, Read and write endurance of FRAM is 1015 cycles and the Data retention duration is 10 years at 85°C

    this endurance cycle include both read and write cycle. So, I can't give an exact number, but it's durable.

    Thanks!

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