DS1961S - 1kb Protected EEPROM iButton With SHA-1 Engine
DS1961S Features
* 1128 Bits of 5V EEPROM Memory Partitioned into Four Pages of 256 Bits, a 64Bit Write-Only Secret, and up to Five General-Purpose Read/Write Registers Write Access Requires Knowledge of the Secret and the Capability of Computing and Transmitting a 160-Bit MAC (Message Authentication Code) as Au
