DS28E10 Datasheet | Maxim Integrated

ABRIDGED DATA SHEET 219-0009; Rev 2; 4/11 EVAALVUAAILTAIOBNLEKIT 1-Wire SHA-1 Authenticator General Description The DS28E10 bines secure challenge-and-response authentication functionality based on the FIPS 180-3 specified Secure Hash Algorithm (SHA-1) with 224 bits of one-time programmable user EPROM in a single chip. Once written, the memory is automatically write protected. Additionally, each device has its own guaranteed unique 64-bit ROM identification number (ROM ID) that is factory programmed into the chip. Memory writes are performed 4 bytes at a time. A secure and low-cost factory programming service is available to preprogram device data, including the SHA-1...