ATSHA204A-STUCZ-T in ATSHA Authentication Family
The ATSHA204A-STUCZ-T belongs to the Microchip CryptoAuthentication family, providing high-level security for embedded systems through a hardware-based secure storage system. This sub-family utilizes the SHA-256 hash algorithm for symmetric authentication and features 4.5Kb of EEPROM for keys, certificates, and data storage. It is designed to prevent counterfeiting, protect intellectual property, and secure communication between a host controller and various peripherals or accessories using a simple single-wire or I2C interface.
Variants in This Sub-Family
Variants within the ATSHA204A sub-family primarily differ by their communication interface (I2C versus Single-Wire Interface) and physical packaging. While the STUCZ-T variant utilizes a 3-lead SOT-23 package, other versions are available in 8-pad UDFN or 8-lead SOIC footprints. Additionally, differences exist in operating voltage ranges and tape-and-reel quantities, though the core SHA-256 logic and memory architecture remain consistent across the sub-family.
