Altitude requirement - considering MCU soft error

[sfjia]

Hello, 

Could you pls help me with the S32K1xx altitude definition.

What's the altitude limitation? Concerning MCU soft error, what's the altitude of FMEDA based on?

Thanks.

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[aarul]

Hi

The transient failure rates used in FMEDA are based at sea level.

Regards

-Aarul

[sfjia]

Hi Aarul,

Thanks for the response.

So, what's the altitude limitation of S32Kxx?  

Best wish.

[aarul]

Hi

Can you please elaborate on your question? Are you looking for SER at specific altitude. If so, what is the altitude you are looking for?

Regards

-Aarul

[sfjia]

Hi Aarul,

I’m trying to define the product working altitude range. I think it should be come from the MCU.

So, what’s the MCU acceptable working altitude range?

Thanks

[aarul]

Hello

Currently we do not have any recommendation for altitude. The FMEDA is configured based on failure rates at sea level. The failure rates can be configured based on a specific altitude if required but for that we will need the altitude target from you.

Regards

-Aarul

[sfjia]

Hi

Our product may working in altitude upto 4800m.

Pls help to provide the failure rate or FMEDA in this condition. (Considering that altitude>2000m,the soft-error rate shall be increased by a appropriate factor according to e.g. JESD89A.)

Thanks