Why "Page Erase/Program cycles" is less than "Sector Erase/Program cycles"

[conradkwok]

Hi,

In the section "11.1 Flash Memory" of the LPC51U68 and LPC54xxx datasheet, it states that

Why the number of "page erase/program" is a less than "sector erase/program"?
Page is part of a Sector. It does not make sense that a Sector can be erased 10000 times
but a Page can only be erased 1000 times.

Is it an error of the datasheet?

Thank you in advance.

[soledad · Accepted solution]

Hi, 

The datasheet is correct. If you use the page erase, you may only get 1000 cycles.

Prefer to use Sector erase + Page write for better FLASH endurance

Have a great day,
Sol

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[conradkwok]

Hi Sol,

Thank you for your answer.  But there is one more thing that need to be clarified.

If one sector has 128 pages,

• can each of the pages has a minimum of 1000 erase/program cycles
• OR the total number of page erase/program cycles in that sector has a minimum of 1000 erase/program cycles.

Thank you in advance.

Regards,