DS1963S Datasheet | Dallas Semiconducotr

DS1963S SHA iButton .iButton. SPECIAL 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 On-chip 512-bit SHA-1 (FIPS 180-1, ISO/IEC 10118-3) engine to pute a 160bit Message Authentication Codes (MAC) and generate page secrets Device can operate as roaming iButton® or as coprocessor for a host puter 256- bit scratchpad ensures integrity of data transfer On-chip 16-bit CRC generator for safeguarding data transfers Overdrive mode boosts...