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DS28E10
ABRIDGED DATA SHEET
219-0009; Rev 2; 4/11 EVAALVUAAILTAIOBNLEKIT
1-Wire SHA-1 Authenticator
General Description
The DS28E10 combines 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 security data components. The device communicates over the single-contact 1-Wire® bus.
DS28E10 Datasheet
