There are a few limitations and restrictions which must be communicated for a proper evaluation concerning whether this value will work for the intended purpose in the customer application.

The 192-bit, pseudo-random value is not guaranteed to have a particular degree of entropy. Therefore, use of the pseudo-random value as a cryptographic key should be carefully considered against the threat level the application must protect against. Use in cryptography as an IV is acceptable, provided there is no requirement of entropy for the IV.

The 32-bit UID_UNIQUE value is not a randomly generated pseudo-number, but is instead based on simple serialization algorithms. Although the UID_UNIQUE value is unique to a unit within a particular series of devices, there will be instances where across device series two units will carry the same UID_UNIQUE number. If uniqueness across device series is required, the UID_UNIQUE value should be cross referenced with the PARTIDH value listed in the device data sheet.