STM32F4 96-bit unique ID Format

[umarnaeem]

Posted on May 21, 2014 at 12:25

I read the unique ID of STM32F407 microcontroller but i want to know what this unique ID represents means is there these bits can show any format or fields???

Is this ID represents the features of microcontroller if yes then how???

[rigomate2]

Posted on May 21, 2014 at 16:03

The unique ID is only a number.

Out of all produced STM32 controllers it is one and only, therefore unique.

[Tesla DeLorean]

Posted on May 21, 2014 at 16:14

There was supposedly some relation to the wafer id, and die location. ST uses the OTP ROM space to mark things like the RAM and/or FLASH size, and writing a bit vector to the AHB/APB peripheral clocks can also tell you what's available. ie CRYP/HASH

[ddahnert]

Posted on June 18, 2014 at 17:38I have the same question.  The reason for my inquiry is that I need a 48 bit unique number.If I can use the least significant 48 bits of the 96 bit ID I would be good with that.If the 96 bit ID is concatenated out of other data fields, die location, die lot, date code, etc. then using the wrong region of the 96 bits will result in a 48 bit number with possible repeats.Thanks.

[Tesla DeLorean]

Posted on June 18, 2014 at 18:55

It's not a MAC ID either, they aren't random they are allocated. Burn your OWN number in OTP