9.1.3.1 Microchip Unique Identifier (MUI)
The PIC16F152 devices are individually
encoded during final manufacturing with a Microchip Unique Identifier (MUI). The MUI
cannot be erased by a Bulk Erase command or any other user-accessible means. 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:
- Tracking the device
- Unique serial number
The MUI consists of nine program words. When taken
together, these fields form a unique identifier. The MUI is stored in read-only
locations, located between 8100h to 8108h in the DIA space. Table 9-3 lists the addresses of the identifier words.
Important: For applications
that require verified unique identification, contact your Microchip Technology sales
office to create a serialized quick turn programming option.