ICODE SLI-L vs ST25TV512

Choose ICODE SLI-L if your application requires extended read range up to 1.5 metres or needs EPC Class 1 Long Range command compatibility alongside ISO 15693. The chip provides 32 bytes of user memory organized as 8 blocks of 4 bytes each, with data rates up to 53 kbit/s. Security features include three separate 32-bit passwords (Privacy, Destroy, and EAS), block-level lock mechanisms, and a Privacy mode that prevents inventory scanning. The 64-bit unique UID is non-alterable, and the password-protected EAS functionality supports retail anti-theft systems. This chip suits logistics and supply chain applications where longer read distances and dual protocol support (ISO 15693 and EPC) are required, particularly in warehouse environments or retail item-level tagging where reading through packaging is necessary. Choose ST25TV512 if you need doubled user memory capacity (64 bytes versus 32 bytes) or require cryptographic authentication through the TruST25 digital signature feature. The ST25TV512 is NFC Forum Type 5 certified, ensuring broader smartphone compatibility for consumer-facing applications. Security architecture offers flexible password protection with either two 32-bit passwords or one 64-bit password, plus password encryption to prevent eavesdropping during authentication. The chip includes Kill mode for permanent deactivation, Untraceable mode for privacy protection similar to ICODE's Privacy mode, optional tamper detect for security seals, and EAS support. This chip is better suited for brand protection, pharmaceutical authentication, or consumer product verification where cryptographic validation is essential, or for applications requiring more user data storage within the same ISO 15693 / NFC Type 5 framework.