ATSHA204A-SSHDA-T

Features

■Secure Authentication and Validation Device
■Integrated Capability for Both Host and Client Operations
■Superior SHA-256 Hash Algorithm with Message Authentication Code (MAC) and Hash-Based Message Authentication Code (HMAC) Options
■Best-in-class, 256-bit Key Length; Storage for Up to 16 Keys
■Guaranteed Unique 72-bit Serial Number
■Internal, High-quality Random Number Generator (RNG)
■4.5Kb EEPROM for Keys and Data
■512 bit OTP (One Time Programmable) Bits for Fixed Information
■Multiple I/O Options̶UART
-compatible High-Speed, Single-Wire Interface̶
-1MHz I2C Interface
■2.0V to 5.5V Supply Voltage Range
■1.8V to 5.5V Communications Voltage Range
■<150nA Sleep Current
■Extended, Multi-level Hardware Security
■8-lead SOIC, 8-lead TSSOP(1), 3-lead SOT23, 8-pad UDFN, 8-pad XDFN, and 3-lead CONTACT Packages

Applications

■Anti-clone Protection for Accessories, Daughter Cards, and Consumables
■Secure Boot Validation, Software Anti-piracy
■Network and Computer Access Control
■Key Exchange for Encrypted Downloads
■Authenticated/Encrypted Communications for Control Networks

Documents:
datasheet