If ST's RTC chip (m41st84w or M41ST85W) has a failure mode to provide invalid RTC data, just like 2022(Year)-18(Month)-49(Date)? If have, what's the failure rate?

[Wwang.11]

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[Tesla DeLorean]

Try explaining your situation better, it didn't translate well.

​

Y​ou have an issue? This issue?

Could you be mixing BCD and Binary?

Is there any report of this?

Is it described in an errata or some peer reviewed report?​

[Wwang.11]

Hi Delorean, Thanks for your response.

m41st84w is used in our product, in one time lab tests, software read invalid date from the RTC (we don't know the real invalid date, but we know this issue as it triggered some fault log), but this issue did not happen before, and now cannot be reproduced.