Microchip Unique Identifier (MUI)

This family of devices is individually encoded during final manufacturing with a Microchip Unique Identifier (MUI). The MUI cannot be user-erased. This feature allows for manufacturing traceability of Microchip Technology devices in applications where this is required. It may also be used by the application manufacturer for a number of functions that require unverified unique identification, such as:
The MUI is stored in read-only locations, located between 2C0000h to 2C0013h in the DIA space. The DIA table lists the addresses of the identifier words.
Important: For applications that require verified unique identification, contact the Microchip Technology sales office to create a Serialized Quick Turn Programming option.