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Nor Flash

frhic_3865271
New Contributor

Hi all

I previously asked a question about how multiple program operations on the same page affect flash wear out (S25FL164K: Do multiple program operation on the same page reduce data integrity?)

However, some things are still unclear to me. So I thought I'll ask a follow-up question with some examples.

(At the start of each Scenario all Sectors of the flash are in the erased state.)

Scenario 1 (write one page):

  1. Write 0x00 to Page 1 Sector 1
  2. Erase Sector 1

How many P/E cycles? (I think 1)

Scenario 2 (write Page 1 twice):

  1. Write 0x0F to Page 1 Sector 1
  2. Write 0xF0 to Page 1 Sector 1
  3. Erase Sector 1

How many P/E cycles? (I think 1)

Scenario 2 (write two pages):

  1. Write 0x00 to Page 1 Sector 1
  2. Write 0x00 to Page 2 Sector 1
  3. Erase Sector 1

How many P/E cycles? (I think 1)

I would be glad if someone could confirm my assumptions of the P/E cycles for each scenario.

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SudheeshK
Moderator
Moderator

Hi,

Sorry for the delay.

Yes, your understanding is correct. Only 1 endurance cycle will be consumed in each the scenarios that you mentioned above.

Thanks and Regards,

Sudheesh

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1 Reply
SudheeshK
Moderator
Moderator

Hi,

Sorry for the delay.

Yes, your understanding is correct. Only 1 endurance cycle will be consumed in each the scenarios that you mentioned above.

Thanks and Regards,

Sudheesh

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