1Kb Protected 1-Wire EEPROM with SHA-1 Engine

General Description\nThe DS28E01-100 combines 1024 bits of EEPROM with challenge-and-response authentication security implemented with the ISO/IEC 10118-3 Secure Hash Algorithm (SHA-1). The 1024-bit EEPROM array is configured as four pages of 256 bits with a 64-bit scratch pad to perform write opera ♦1024 Bits of EEPROM Memory Partitioned Into Four Pages of 256 Bits\n♦On-Chip 512-Bit SHA-1 Engine to Compute 160-Bit Message Authentication Codes (MACs) and to Generate Secrets\n♦Write Access Requires Knowledge of the Secret and the Capability of Computing and  Transmitting a 160-Bit MAC as Authori;

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