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STM8AL3L8x Datasheet(PDF) 64 Page - STMicroelectronics

Part # STM8AL3L8x
Description  Automotive 8-bit ultra-low-power MCU, 64 Kbyte Flash, RTC, LCD, data EEPROM, timers, USARTs, I2C, SPIs, ADC, DAC, COMPs
PDF  131 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

STM8AL3L8x Datasheet(HTML) 64 Page - STMicroelectronics

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Unique ID
STM8AL318x STM8AL3L8x
64/131
DocID027179 Rev 6
8
Unique ID
STM8 devices feature a 96-bit unique device identifier which provides a reference number
that is unique for any device and in any context. The 96 bits of the identifier are never
altered by the user.
The unique device identifier is read in single byte and may then be concatenated using a
custom algorithm.
The unique device identifier is ideally suited:
•
For use as serial numbers
•
For use as security keys to increase the code security in the program memory while
using and combining this unique ID with software cryptographic primitives and
protocols before programming the internal memory.
•
To activate secure boot processes
Table 14. Unique ID registers (96 bits)
Address
Content
description
Unique ID bits
76
54
3
2
1
0
0x4926
X co-ordinate on
the wafer
U_ID[7:0]
0x4927
U_ID[15:8]
0x4928
Y co-ordinate on
the wafer
U_ID[23:16]
0x4929
U_ID[31:24]
0x492A
Wafer number
U_ID[39:32]
0x492B
Lot number
U_ID[47:40]
0x492C
U_ID[55:48]
0x492D
U_ID[63:56]
0x492E
U_ID[71:64]
0x492F
U_ID[79:72]
0x4930
U_ID[87:80]
0x4931
U_ID[95:88]



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