ICODE 3 vs ST25TV512

Choose ICODE 3 if you need substantially larger memory capacity or advanced security features for anti-counterfeiting applications. The ICODE 3 provides 2400 bits (300 bytes) of usable user data plus a 24-bit counter across 76 blocks, nearly five times the capacity of the ST25TV512's 512 bits (64 bytes). Its security architecture includes ECC-based originality signatures using secp128r1 (32-byte or 48-byte programmable), dual password protection (32-bit and 64-bit), two privacy modes with password authentication, and comprehensive lock mechanisms at block and page level. The additional 192 bytes of configuration memory and granular access control make it suitable for supply chain tracking, high-value asset management, and applications requiring cryptographic authentication. Both chips operate at 13.56 MHz and comply with ISO/IEC 15693 standards, but ICODE 3 represents a latest-generation design with enhanced data transfer speeds. Choose ST25TV512 if you need a compact, cost-effective ISO 15693 solution with sufficient security for basic authentication and tracking applications. The 64-byte EEPROM user memory is adequate for simple item identification, access control, or product authentication where extensive data storage is not required. It supports NFC Forum Type 5 compatibility alongside ISO/IEC 15693, providing broader ecosystem support. Security features include dual 32-bit passwords (configurable as one 64-bit password), STMicroelectronics' TruST25 digital signature for authenticity verification, kill mode for permanent deactivation, untraceable mode for privacy, password encryption, and optional tamper detection. The ST25TV512 suits applications like shelf-edge labeling, pharmaceutical authentication, consumable tracking, or retail item-level tagging where the smaller memory footprint meets requirements and lower component cost is prioritized over extensive data capacity.