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

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

Features ● 1024 Bits of EEPROM Memory Partitioned into Four Pages of 256 Bits ● On-Chip 512-Bit SHA-1 Engine to Compute 160- Bit Message Authentication Codes (MACs) and to Generate Secrets ● Dedicated 64-Bit Write-Only Secret with a Feature to Extend the Secret Size to 320 Bits by Setting a

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

Features ● 1024 Bits of EEPROM Memory Partitioned into Four Pages of 256 Bits ● On-Chip 512-Bit SHA-1 Engine to Compute 160- Bit Message Authentication Codes (MACs) and to Generate Secrets ● Dedicated 64-Bit Write-Only Secret with a Feature to Extend the Secret Size to 320 Bits by Setting a

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

General Description The 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 o