CODEWITHSUNDEEP
filesystemsembeddedflash-memory
demonguy
demonguy

Reputation: 2017

During the whole life of Nand Flash, Is read a safe operation?

On today's interview, i have been asked a interesting question

"During the whole life of Nand Flash, Is read a safe operation?"

We all know that erase or write will cause bad block. But is read operation safe? for example, if i put some data into nand flash, and never change it after.I just read it over and over again, will there be some problems?Also i'm told that this have no relation to ECC

Upvotes: 2

Views: 619

Answers (1)

Jubatian
Jubatian

Reputation: 2191

No, read operations can cause read disturb problems. Search for "nand flash read disturb" on Google for example, it will give plenty of articles on the matter, for example this at Micron, or this at SanDisk.

Upvotes: 4

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