EEPROM (M24M01E-F) Page accessing

[Rishvana]

Hi,

For my project, I am using an M24M01E-F I2C EEPROM. My application requires writing and reading data page-wise. According to the datasheet, the EEPROM has a capacity of 1 Mbit (128 KB). I need clarification on how many pages I can able  write to using this EEPROM." 

To clarify, the M24M01E-F EEPROM has a total of 512 pages, with each page being 256 bytes

[Peter BENSCH]

Welcome @Rishvana, to the community!

Correct, M24M01E contains 128KB EEPROM, which are divided into 512 pages with 256 bytes each.

Does it answer your question?

Regards
/Peter

[Rishvana]

Thank you, @Peter BENSCH,

Am I able to access all 512 pages?

Is there a page limitation when writing and reading?

because,

In my application, I am currently able to write only 416 pages in one write and read cycle. During the subsequent write cycle, a communication error occurs in both I2C read and write operations. I am using I2C communication with a clock frequency of 100 kHz.

Can you clarify this for me? Your help would be greatly appreciated.

[Peter BENSCH · Accepted solution]

All 512 pages are of course accessible, access to the pages should only be limited by the MCU used and its programme.

Regards
/Peter

[Rishvana]

Thank you, @Peter BENSCH,

For our current project, we need to store some confidential information in the Identification Page section of the EEPROM (M24M01E-F). We would like to confirm if it is possible to use this specific section for our data storage and need a clarification about how to implement Identification page locking mechanism.

Could you please provide guidance on how we can store information in the Identification Page of the M24M01E-F EEPROM? Any insights or documentation on the process would be greatly appreciated.

Regards,

Rishvana

[Peter BENSCH]

Yes, you can use the identification page for your purposes, but it can only be set to read-only and may therefore not be suitable for confidential information.

The procedure for accessing this identification page is described in the data sheet, section 4.4.

Regards
/Peter

[Peter BENSCH]

See also this thread.

[Rishvana]

Hi Peter,

Could you please provide sample code for accessing the identification page and the locking mechanism?

Thanks,

Rishvana

[Rishvana]

Thank you @Peter BENSCH