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Nor Flash

New Contributor

Hello All,

We are planning to use the S29GL032N Flash Memory device in our design to securely store critical Look Up tables. The Tables will be loaded only once at factory and never updated in the field. The main requirement is to prevent illegal reading of the Look Up Table contents by removing the Flash Device from the motherboard. Does the "Password Sector Protection" support this by requiring a password to read data from the chip or is it only applicable for writing/erasing sectors of the  Flash Device?

Look forward to your responses.

Many Thanks.

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Employee

Hello,

The Advanced Sector Protection features several levels of sector protection, which can disable both the program and erase

operations in certain (selected) sectors.  There are two Advanced Sector Protection schemes :

  - Persistent Sector Protection

  - Password Sector Protection

However, it is important to highlight that the "Persistent Sector Protection" and "Password Sector Protection" are only applicable for WRITE and ERASE operations of the S29GL032N FLASH memory device, and does not have any effect on reading the main memory array contents. Hope this helps.   Best regards,  Albert - Cypress Semiconductor.

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1 Reply
Employee

Hello,

The Advanced Sector Protection features several levels of sector protection, which can disable both the program and erase

operations in certain (selected) sectors.  There are two Advanced Sector Protection schemes :

  - Persistent Sector Protection

  - Password Sector Protection

However, it is important to highlight that the "Persistent Sector Protection" and "Password Sector Protection" are only applicable for WRITE and ERASE operations of the S29GL032N FLASH memory device, and does not have any effect on reading the main memory array contents. Hope this helps.   Best regards,  Albert - Cypress Semiconductor.

View solution in original post

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