Corruption / Erasing of memory contents from M95256-A125

[SaraB]

Hello All,

M95256-A125 chip is used as external EEPROM for our automotive product .

The product is in field use  & recently some field issues are reported 

On analyzing field return unit , it's found that the most of the data in EEP chip is either corrupted or in erased  .

• What are the possible cases where such erasing / corruption can occur
• Does any environmental conditions can cause this problem

Thanks

[Andrew Neil]

Welcome to the forum.

Please see How to write your question to maximize your chances to find a solution for best results.

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@SaraB wrote:

• What are the possible cases where such erasing / corruption can occur

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Software faults/misbehaviour; hardware issues.

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@SaraB wrote:

• Does any environmental conditions can cause this problem

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Possibly.

Are you sure that the product remains within the chip's environmental specs?

"environmental" effects could include EMI/EMC, poor power supply, etc ...

[SaraB]

Hi Andrew,

Thanks for the info

The chip was with in the environmental specs.

Could you elaborate the probable use case of Software faults/misbehaviour , hardware issues.

[Andrew Neil]

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@SaraB wrote:

The chip was with in the environmental specs.

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How are you sure of that?
Automotive is a notoriously harsh environment.

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@SaraB wrote:

Could you elaborate the probable use case of Software faults/misbehaviour

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Software which incorrectly writes to the memory, or writes incorrect data, or accidentally/incorrectly erases the device.

These could be due to design flaws, implementation flaws, or both.

You need to debug your software.

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@SaraB wrote:

hardware issues.

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Noise; interference; unstable power; brownouts; etc ...