ICODE SLI-L vs Tag-it HF-I Plus

Choose ICODE SLI-L if you need compact data storage with advanced password-based security for privacy-sensitive applications. With 32 bytes of user memory organized in 8 blocks of 4 bytes each, this chip operates on ISO/IEC 15693-2/3 and EPC Class 1 Long Range protocols at 13.56 MHz. Its security architecture includes three distinct 32-bit passwords: Privacy password for access control, Destroy password for permanent deactivation, and EAS password for anti-theft systems. The chip offers per-block lock mechanisms and a Privacy mode that restricts unauthorized access. Data transmission runs at up to 53 kbit/s with a read range extending to 1.5 meters, making it suitable for applications requiring moderate distance scanning. The 64-bit unique UID is non-alterable and factory-programmed. This chip fits scenarios where authentication, controlled access, and electronic article surveillance are priorities over large data storage, such as pharmaceutical tracking, access cards, or brand authentication labels. Choose Tag-it HF-I Plus if your application demands significantly larger memory capacity for storing detailed item information. This chip provides 2048 bits (256 bytes) of user memory—eight times the capacity of the ICODE SLI-L—organized in 64 blocks of 32 bits each. Operating on ISO/IEC 15693 and ISO/IEC 18000-3 protocols at 13.56 MHz, it uses EEPROM technology with individual block locking through both user-programmable and factory lock bits. Each chip has a unique 64-bit UID that is factory-programmed and permanently locked. While it lacks password-based access control and EAS functionality, the block-level locking provides data integrity protection once information is written. This makes the Tag-it HF-I Plus ideal for library management systems, supply chain tracking, asset management, and inventory applications where extensive product data, manufacturing details, or maintenance records must be stored on the tag itself rather than in a backend database.