ATSHA204-MAH-CZ-T Microchip

ATSHA204 Atmel CryptoAuthentication NOT RECOMMENDED DATASHEET FOR NEW DESIGNS Replaced by Features ATSHA204A 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 2 1MHz I C 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_072014Table 1. Pin Configurations Pin Name Function NC No Connect GND Ground SDA Serial Data SCL Serial Clock Input V Power Supply CC Figure 1. Pinouts 8-lead SOIC 8-lead TSSOP NC 1 8 V NC 1 8 V CC CC NC 2 7 NC NC 2 7 NC NC 3 6 SCL NC 3 6 SCL GND 4 5 SDA GND 4 5 SDA Top View Top View 8-pad UDFN 3-lead SOT23 8 1 V NC CC 2 V CC NC 7 2 NC GND 3 SCL 6 3 NC 5 4 SDA GND 1 SDA Bottom View Top View 3-lead Contact 1 SDA 2 GND 3 V CC Bottom View 2 ATSHA204 [DATASHEET] Atmel-8740H-CryptoAuth-ATSHA204-Datasheet_072014