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STM8L151C2 データシート(PDF) 53 Page - STMicroelectronics

部品番号 STM8L151C2
部品情報  8-bit ultra-low-power MCU, up to 8 KB Flash, up to 256 bytes data EEPROM, RTC, timers, USART, I2C, SPI, ADC, comparators
PDF  123 Pages
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メーカー  STMICROELECTRONICS [STMicroelectronics]
ホームページ  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

STM8L151C2 データシート(HTML) 53 Page - STMicroelectronics

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DS7204 Rev 11
53/123
STM8L151x2, STM8L151x3
Unique ID
53
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 can never be
altered by the user.
The unique device identifier can be read in single bytes 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 13. 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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