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Opis:
1128 bits of 5V EEPROM memory partitioned into four pages of 256 bits, a 64-bit write-only secret and up to 5 general purpose read/write registers
On-chip 512-bit SHA-1 engine to compute 160-bit Message Authentication Codes (MAC) and to generate secrets
Write access requires knowledge of the secret and the capability of computing and transmitting a 160-bit MAC as authorization
Secret and data memory can be write-protected (all or page 0 only) or put in EPROM emulation mode (�write to 0? page 1)
Low cost 6-lead TSOC surface mount package, or solder-bumped Flipchip package
Reads and writes over a wide voltage range of 2.8V to 5.25V from -40°C to +85°C