AT88SC25616C

The Atmel AT88SC25616C is part of the CryptoMemory family of secure memory products, offering densities from 1 Kbit to 256 Kbits. This chip provides a low-cost, high-security solution for applications requiring data protection beyond standard serial EEPROMs.

Key features include symmetrical dynamic mutual authentication using a 64-bit cryptographic key, stream encryption for data privacy, and anti-tearing mechanisms to prevent data corruption during power loss. It supports both ISO 7816-3 asynchronous T=0 and synchronous two-wire communication protocols, making it versatile for various reader interfaces. Devices 32 Kbits and larger support ISO 7816-3 PPS exchange for communication speeds up to 153,600 baud.

Operating within a voltage range of 2.7V to 5.5V, the AT88SC25616C is suitable for a broad spectrum of smart card and embedded systems. Its security functions are based on a proprietary algorithm similar to DES, ensuring data integrity and authenticity. The family approach allows system integrators to scale memory density without altering application software, facilitating faster time-to-market.

Applications include ID cards, access control, e-purses, loyalty programs, energy meters, and transaction records. In embedded systems, it can be used for secure data storage and authentication.