S29GL128P90FFSS9

[Asu]

Package connection diagram for S29GL128P90FFSS9 (Secure model)
S29GL128P90FFSS9 offers a unique Permanent Sector Lock Algorithm that allows the host
system to permanently secure the data in any desired sectors of the memory array via a
software command at VCC supply levels. There is no need for high voltage (> VCC) on any
pin during this operation. Initiating this software command sequence permanently disables
both program and erase operations in any desired sectors. This feature protects the data in
these areas from being changed or erased in any way after this command has been
activated. Sectors can be incrementally locked at any time and in any sequence.

Does anyone know or know the commands to erase and write the s29gl128p90ffss9 memories?
RT809H programmer
thank you

 

[chookey]

If it's a new chip you just use the software to erase or write. If you are trying to reprogram a chip with locked sectors then forget it. As you posted above the locks are permanent.

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[Asu]

I thought it can be unlocked with the same commands.
Thank you