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전자부품 데이터시트 검색엔진 |
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전자부품 데이터시트 검색엔진 |
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STM8AF6213 데이터시트(PDF) 52 Page - STMicroelectronics |
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STM8AF6213 데이터시트(HTML) 52 Page - STMicroelectronics |
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52 / 112 page  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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