ATSHA204A-STUCZ-T is a high-security cryptographic authentication IC designed for authentication, anti-counterfeiting, and IoT security applications utilizing SHA-256 encryption.

• High-security cryptographic authentication IC with true random number generator (TRNG)
• Integrated SHA-256 hash algorithm engine and non-volatile secure memory
• Supports symmetric authentication with unique 9-byte serial number per chip
• Hardware-based key storage with anti-tamper protection
• Secure communication via I²C or single-wire interface
• On-chip cryptographic calculations to prevent key leakage
• Enables mutual authentication, data encryption, and anti-counterfeiting verification

• Anti-counterfeiting marking for consumer electronics
• Accessory authentication and peripheral device anti-clone protection
• IoT device identity verification and secure firmware upgrades
• Industrial equipment access control systems
• Medical device data security
• Smart home modules and battery pack authentication
• Intellectual property protection and system data security enhancement