What are the specifications of Parallel NOR?

[MAO]

Can you comment on the difference between the S29GL128P90TFIR20 and S29GL128P90TFIR10 specifications?
In the ordering information, you mentioned that there is a difference between the lowest/highest address sector protected.

[shma_1538871]

GL-N is 110nm, GN-S is 65nm. it is difference of each NOR.

And GN-S has ECC function. ECC function needs "Write Buffer Programming". User needs to take care of this function.

Sector is same.

[Yuvraj · Accepted solution]

Hi,

Thank you for contacting Infineon Technologies.

If the user wants to protect some of the sectors from program or erase operations where once the data is programmed it does not require to be updated/modified  then we provide the option through Highest sector protection or Lowest address sector protection.

User can choose which sector to be protected Highest or lowest depending on your choice and order part number accordingly.

The highest address sector protected means when you drive WP (Write Protect Signal) low by default the last sector outermost sector remains protected/locked and the lowest address sector protected means when you drive WP low by default first or initial sector is protected. either the highest or lowest sector is locked (device-specific). You can select device according to ordering part number from data sheet considering Model Number.

110nm, 65nm or 45 nm are various technologies on which particular NOR FLASH is designed which is different for different device families. 

Thanks and Regards,

Yuvraj