512-Bit EEPROM with SHA-256 Authentication for Reads and Writes
Symmetric-Key-Based Bidirectional Secure Authentication Model Based on SHA-256
Strong Authentication with a High-Bit-Count User-Programmable Secret and Input Challenge
512 Bits of User EEPROM Partitioned Into Two 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
Minimalist 1-Wire Interface Lowers Cost and Interface Complexity
Reduces Control, Address, Data, Power, and Programming Signals to a Single Data Pin
±8kV HBM ESD Protection (typ)
2-Pin SFN, 6-Pin TDFN-EP, and 6-Pin TSOC Packages
Operating Range: 3.3V ±10%, -40°C to +85°C
Applications/Uses
Authentication of Consumables
Secure Feature Control