DS1963S Datasheet (Dallas Semiconducotr)

DS1963S, SHA iButton

The DS1963S Monetary iButton with SHA-1 Function is a rugged 4 kbit read/write data carrier that can be easily accessed with minimal hardware.

Its NV memory acts as a localized database for public as well as protected data belonging to the owner of the device and the environment in which it is used.

DS1963S Features

* 4096 bits of read/write nonvolatile (NV) memory organized as 16 pages of 256 bits each Eight memory pages with individual 64-bit secrets and 32-bit read-only non rolling-over page write cycle counters Secrets are write-only and have their own individual write cycle counters O