OTP Secure Digital ?

[Talal Itani]

I am looking for SD (Secure Digital) memory that can be programmed only
once. Basically, once programmed, it cannot be erased. I searched the web,
but I did not find any. Please let me know if you are aware of such
technology. Thanks.

T.I.

 

[Jim Granville]

I am looking for SD (Secure Digital) memory that can be programmed only
once. Basically, once programmed, it cannot be erased. I searched the web,
but I did not find any. Please let me know if you are aware of such
technology. Thanks.

Can you explian what you are trying to use this for, and how secure,
and how large, the OTP aspect needs to be.

Is it to prevent accidental corruption, or does this hold unique IDs
that must remain secure, or is it a high revenue/high volume product
you want to protect from rampant cloning (or virus/tampering) ?

-jg

 

[Talal Itani]

Hi Jim,

I am trying to keep people from accidentally erasing the contents of the
microSD. Basically, once it is programmed, I want the data to remain there,
and not erased or programmed again. This is for a product, yet not a mass
produced product. The size I need is 512MB. The microSD will not hold
unique ids. Thanks.

T.I.