ATAES132-SH-EQ Microchip

ATAES132 32K AES Serial EEPROM Specification DATASHEET NOT RECOMMENDED FOR NEW DESIGNS Features Replaced by 32Kb Standard Serial EEPROM User Memory ATAES132A o Compatible with the Atmel AT24C32D and the Atmel AT2530B o 16 User Zones of 2Kb Each High-security features o AES Algorithm with 128-bit Keys o AES-CCM for Authentication o Message Authentication Code for Cryptographic Operations o Secure Storage for Sixteen 128 bit Keys o Encrypted User Memory Read and Write o FIPS Random Number Generator o 16 High-Endurance Monotonic EEPROM Counters Flexible User Configured Security o User Zone Access Rights Independently Configured o Authentication Prior to Zone Access Read/Write, Encrypted, or Read-only User Zone Options High-speed Serial Interface Options o 10MHz SPI (Mode 0 and 3) 2 o 1MHz I C 2.5V to 5.5V Supply, <250nA Sleep Serial EEPROM Compatible Pinout Packages: SOIC, SOP, or UDFN Operating Temperature Range: -40C to +85C Description The Atmel ATAES132 is a high-security, Serial Electrically-Erasable and Programmable Read-Only Memory (EEPROM) providing both authentication and confidential nonvolatile data storage capabilities. Access restrictions for the 16 user zones are independently configured and any key can be used with any zone. Keys can also be used for standalone authentication. This flexibility permits the ATAES132 to be used in a wide range of applications. The AES-128 cryptographic engine operates in AES-CCM mode to provide authentication, stored data encryption/decryption, and Message Authentication Codes. Data encryption/decryption can be performed for internally stored data or for small external data packets, depending upon the configuration. Data encrypted by one ATAES132 device can be decrypted by another, and vice versa. Atmel-8760C-CryptoAuth-ATAES132-Datasheet 102013 2 The ATAES132 pinout is compatible with standard SPI and I C Serial EEPROMs to allow 2 placement on existing PC boards. The SPI and I C instruction sets are identical to Atmel Serial EEPROMs. The extended security functions are accessed by sending command packets to the ATAES132 using standard Write instructions and reading responses using standard Read instructions. The ATAES132 Secure Serial EEPROM architecture allows it to be inserted into existing applications. The ATAES132 device incorporates multiple physical security mechanisms to prevent release of the internally stored secrets. Secure personalization features are provided to facilitate third-party product manufacturing. ATAES132 Datasheet 2 Atmel-8760C-CryptoAuth-ATAES132-Datasheet 102013