ICODE SLI vs ST25TV02KC

Choose the ICODE SLI if you need a cost-effective ISO 15693 solution for basic item-level tagging in library or retail environments where simple write protection is sufficient. This chip provides 112 bytes of usable memory across 28 blocks, with block-level write protection that permanently locks data once set. The 64-bit unique identifier supports item authentication, while the EAS bit enables anti-theft systems at store exits. Both chips operate at 13.56 MHz under ISO/IEC 15693-2 and 15693-3 standards with AFI and DSFID support, but the ICODE SLI's proven design suits applications prioritizing interoperability and straightforward read/write access control without requiring reversible security or field deactivation. Choose the ST25TV02KC if you require enhanced security through 32-bit password protection or need larger memory capacity for data-rich applications. With 256 bytes total EEPROM (organized as 64 blocks of 4 bytes), this chip offers more than double the storage of the ICODE SLI. The password protection allows reversible access control unlike the ICODE SLI's permanent locking, making it suitable for applications requiring field updates after initial security deployment. The kill command provides permanent deactivation capability, critical for end-of-life scenarios or privacy-sensitive applications where tag functionality must be irreversibly disabled. This chip also conforms to ISO/IEC 18000-3 mode 1 in addition to ISO 15693, offering broader protocol compatibility. Select this option when password-based security, larger memory, or definitive tag termination are project requirements.