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M24LR04E-R 数据表(PDF) 105 Page - STMicroelectronics |
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M24LR04E-R 数据表(HTML) 105 Page - STMicroelectronics |
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105 / 142 page  M24LR04E-R Command codes Doc ID 022208 Rev 5 105/142 Request parameter: ● Request flags ● UID (optional) ● Password Number (0x01 = Pswd1, 0x02 = Pswd2, 0x03 = Pswd3, other = Error) ● Password Response parameter: ● No parameter. The response is send back after the write cycle. Response parameter: ● Error code as Error_flag is set: – 10h: the password number is incorrect – 0Fh: the present password is incorrect Table 83. Present-sector Password request format Request SOF Request _flags Present- sector Password IC Mfg code UID(1) 1. Gray means that the field is optional. Password number Password CRC16 Request EOF 8 bits B3h 02h 64 bits 8 bits 32 bits 16 bits Table 84. Present-sector Password response format when Error_flag is NOT set Response SOF Response_flags CRC16 Response EOF 8 bits 16 bits Table 85. Present-sector Password response format when Error_flag is set Response SOF Response_ flags Error code CRC16 Response EOF 8 bits 8 bits 16 bits |
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