ICODE DNA vs ST25TV02KC

Choose ICODE DNA if you require cryptographic authentication for brand protection, anti-counterfeiting, or secure product verification. This chip provides AES-128 mutual authentication using three independent user keys, a 32-byte ECC-based originality signature that proves chip authenticity, and memory segmentation with granular access privileges. The 2016-bit user memory is organized as 63 blocks of 4 bytes each, with the 64th block reserved for a 16-bit counter. Each block can be individually write-locked, and the unique 64-bit UID combined with cryptographic features makes cloning practically impossible. Both chips operate at 13.56 MHz and comply with ISO/IEC 15693-2 and ISO/IEC 15693-3 standards, but ICODE DNA's security architecture is substantially more robust for applications where product authenticity verification is critical, such as pharmaceuticals, luxury goods, or electronics. Choose ST25TV02KC if you need basic inventory management, supply chain tracking, or retail applications where permanent deactivation capability is required. This chip offers 256 bytes (2048 bits) of EEPROM organized in 64 blocks of 4 bytes, protected by 32-bit password authentication. The kill command allows permanent deactivation of tags at point-of-sale or end-of-life, preventing reuse or counterfeiting through tag recycling. EAS (Electronic Article Surveillance) functionality enables theft prevention systems, while AFI and DSFID fields support application-specific identification and data formatting. The ST25TV02KC complies with ISO/IEC 15693 and ISO/IEC 18000-3 mode 1, making it interoperable with standard readers. While it lacks the cryptographic authentication of ICODE DNA, its 32-bit password offers sufficient protection for non-critical applications, and the kill command provides definitive lifecycle management unavailable on ICODE DNA.