ATSHA204_14 Datasheet, PDF (1/80 Pages) ATMEL Corporation – Atmel CryptoAuthentication

NOT RECOMMENDED
FOR NEW DESIGNS
Replaced by
ATSHA204A
ATSHA204
Atmel CryptoAuthentication
DATASHEET
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 OTP (One Time Programmable) bits for fixed information
 Multiple I/O options
 High-Speed, Single-Wire Interface
 1MHz I²C interface
 2.0V to 5.5V supply voltage range
 1.8V to 5.5V communications
 <150nA sleep current
 Extended, multi-level hardware security
 8-lead SOIC, 8-lead TSSOP, 3-lead SOT23, 8-pad UDFN, 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
Atmel-8740H-CryptoAuth-ATSHA204-Datasheet_072014