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STM8AF6213 Datenblatt(PDF) 52 Page - STMicroelectronics

Teilenummer STM8AF6213
Bauteilbeschribung  Automotive 8-bit MCU, with up to 8-Kbyte Flash memory, data EEPROM, 10-bit ADC, timers, LIN, SPI, I²C, 3 to 5.5 V
PDF  112 Pages
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Hersteller  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

STM8AF6213 Datenblatt(HTML) 52 Page - STMicroelectronics

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Unique ID
STM8AF6213/13A/23/23A/26
52/112
DS9884 Rev 9
9
Unique ID
The 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 can never be altered
by the user.
The unique device identifier can be 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 22. Unique ID bit description
Address
Content
description
Unique ID bits
765
43
21
0
0x4865
X coordinate
on the wafer
U_ID[7:0]
0x4866
U_ID[15:8]
0x4867
Y coordinate
on the wafer
U_ID[23:16]
0x4868
U_ID[31:24]
0x4869
Wafer number
U_ID[39:32]
0x486A
Lot number
U_ID[47:40]
0x486B
U_ID[55:48]
0x486C
U_ID[63:56]
0x486D
U_ID[71:64]
0x486E
U_ID[79:72]
0x486F
U_ID[87:80]
0x4870
U_ID[95:88]



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