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Maxim Integrated
DS28EL22Q-U DeepCover Secure Authenticator with 1-Wire SHA-256 and 2Kb User EEPROM

General Description
DeepCoverM embedded security solutions cloak sensitive data under multiple layers of advanced physical secu rity to provide the most secure key storage possible. The DeepCover Secure Authenticator (DS28EL22) combines crypto-strong, bidirectional, secure challenge-and-response authentication functionality with an implementation based on the FIPS 180-3-specified Secure Hash Algorithm (SHA-256).

● Symmetric Key-Based Bidirectional Secure Authentication Model Based on SHA-256
● Dedicated Hardware-Accelerated SHA Engine for Generating SHA-256 MACs
● Strong Authentication with a High Bit Count, User Programmable Secret, and Input Challenge
● 2048 Bits of User EEPROM Partitioned Into 8 Pages of 256 Bits
● User-Programmable and Irreversible EEPROM Protection Modes Including Authentication, Write and Read Protect, and OTP/EPROM Emulation
● Unique, Factory-Programmed 64-Bit Identification Number
● Single-Contact 1-Wire Interface Communicates with Host at Up to 76.9kbps
● Operating Range: 1.8V ±5%, -40NC to +85NC
● Low-Power 5µA (typ) Standby
● ±8kV Human Body Model ESD Protection (typ)
● 6-Pin TDFN Package

other parts : DS28EL22Q-T  DS28EL22  


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