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MSPM33C321A-Q1: Maximum On-Off Cycles

Til Schoengarth
Intellectual 1230 points

Part Number: MSPM33C321A-Q1
Other Parts Discussed in Thread: MSPM33C321A

Hi team,

how many On-Off cycles can the MSPM33C321A handle?

From a mission profile perspective there are no issues.

BR,

Til

  • +1
    Guru 44155 points

    There is no particular stress placed on the chip during an on-off cycle, so that is indeterminate, and relates to the general reliability of the on-time.

    Flash will retain for 60 years at 85C

  • 0 in reply to Keith Barkley
    TI__Intellectual 1230 points

    Thanks Keith,

    this answers my request.

    For my own curiosity, is the flash the main limiting factor of lifetime? Meaning if I operate at 85C for 60 years everything besides the flash will also continue working?

  • 0 in reply to Til Schoengarth
    Guru 44155 points

    BTW, I have no inside knowledge on this, I am just using my general semiconductor experience. TI might chime in with something different.

    Disclaimer out of the way, assuming you are not drawing the max current from one of the I/Os, the flash should be the limitation at moderate temperatures. If the flash goes, I am not sure what the chip would *do*, but that is another issue.

    The devices I am familiar with were designed to run for a million hours at a junction temperature of 200C, or a little over 100 years. The lifetime would double for every 10 degrees C below that. 

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