DS1961S engine equivalent, 1kb protected eeprom ibutton with sha-1 engine.
§ 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 Requi.
The DS1961S can be used for different purposes such as secure access control, user/product authentication, after-market .
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