ATSHA204A-SSHDA-B

ATSHA204A ATSHA204A Microchip CryptoAuthentication Data Sheet Features • • • • • • • • • • • • • • Crypto Element with Protected Hardware-Based Key Storage Secure Symmetric Authentication Device 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) 4.5 kb EEPROM for Keys and Data 512 bit OTP (One Time Programmable) Bits for Fixed Information Multiple I/O Options – UART-compatible High-Speed, Single-Wire Interface – 1 MHz I2C Interface 2.0V to 5.5V Supply Voltage Range 1.8V to 5.5V Communications Voltage Range 76623@ 1RWH )RUWKHPRVWFXUUHQWSDFNDJHGUDZLQJVSOHDVHVHHWKH0LFURFKLS3DFNDJLQJ6SHFLILFDWLRQORFDWHGDW KWWSZZZPLFURFKLSFRPSDFNDJLQJ D N E E1 NOTE 1 1 2 b e c A φ A2 A1 L L1 8QLWV 'LPHQVLRQ/LPLWV 1XPEHURI3LQV 0,//,0(7(56 0,1 1 120 0$;  3LWFK H 2YHUDOO+HLJKW $ ± %6& ± 0ROGHG3DFNDJH7KLFNQHVV $    6WDQGRII $  ±   2YHUDOO:LGWK ( 0ROGHG3DFNDJH:LGWK (  %6&  0ROGHG3DFNDJH/HQJWK '    )RRW/HQJWK /    )RRWSULQW /  5() )RRW$QJOH  ƒ ± ƒ /HDG7KLFNQHVV F  ±  /HDG:LGWK E  ±  1RWHV  3LQYLVXDOLQGH[IHDWXUHPD\YDU\EXWPXVWEHORFDWHGZLWKLQWKHKDWFKHGDUHD  'LPHQVLRQV'DQG(GRQRWLQFOXGHPROGIODVKRUSURWUXVLRQV0ROGIODVKRUSURWUXVLRQVVKDOOQRWH[FHHGPPSHUVLGH  'LPHQVLRQLQJDQGWROHUDQFLQJSHU$60(