RF37S114: Question about RF37S114's UID

Shinji Ueda

Expert 5440 points

Part Number: RF37S114

Hi champs,

My customer has a question about RF37S114's UID.

Can customer rewrite these registors?
or
These registors already fixed, so customer cannot rewrite it.

Which is correct?

Regards,
Shinji Ueda

over 6 years ago

0 Ralph Jacobi over 6 years ago

TI__Guru*** 128235 points

Hello Ueda-san,

The UID is not re-programmable. Per ISO15693 standards, each tag should have it's own UID, so to be in accordance with that in production the UID is programmed as OTP and cannot be changed at all.

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RF37S114: Question about RF37S114's UID