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unique ID of mcu

Question asked by mahmoud on Dec 20, 2014
Latest reply on Dec 20, 2014 by Clive One
hi every one
i have 2 question :
1- is there a unique ID for each stm32 mcu ?
how we can read this(if there is ) ?
2-i need to save a few data in mcu which dosent erased after reset (like eeprom )
is there any internal fuse bit /flag or some thing like that (only some byte is enough ) for storing datas ?how we can achieve that ?