Microchip AT88SC25616C-SU 256kB 8-Pin Crypto Authentication IC SOIC

The first device in the AES family, the ATAES132A, is a high-speed, high-security, 32K Serial EEPROM that enables authentication and confidential nonvolatile data storage. It is a direct drop-in for industry standard Serial EEPROMS and is an easy way to add security to a system. The ATES132A includes a high-quality hardware Random Number Generator (RNG) paired with a Deterministic Random Bit Generator (DRBG) to prevent replay attacks.

32Kb Standard Serial EEPROM User Memory (16 User Zones of 2Kb)
AES Algorithm with 128-bit Keys
AES-CCM for Authentication
Secure Storage for 16 and 128 bit Keys
Encrypted User Memory Read and Write
Random Number Generator (RNG)
16 High-Endurance Monotonic EEPROM