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

ICODE SLIX-L offers 32 bytes user memory with password protection; Tag-it HF-I Plus provides 256 bytes with block locking. Both 13.56 MHz ISO 15693 tags.

Side-by-side specs

Frequency

ICODE SLIX-L: 13.56 MHz
Tag-it HF-I Plus: 13.56 MHz

Protocol

ICODE SLIX-L: ISO/IEC 15693, ISO/IEC 18000-3
Tag-it HF-I Plus: ISO/IEC 15693, ISO/IEC 18000-3

Memory

ICODE SLIX-L: 512 bits (64 bytes) total, organized in 16 blocks of 4 bytes; 256 bits (32 bytes) user memory
Tag-it HF-I Plus: 2048 bits (256 bytes) user memory organized in 64 blocks of 32 bits each, EEPROM

Interface

ICODE SLIX-L: RF (contactless)
Tag-it HF-I Plus: RF (contactless)

Temp Range

ICODE SLIX-L: -40°C to +85°C (junction temperature)
Tag-it HF-I Plus: -40°C to +85°C

Form Factor

ICODE SLIX-L: Wafer (SL2S5002FUD: 520×484 µm, SL2S5102FUD: 520×607 µm, 120 µm thick), XSON3 package (SOT1122: 1×1.45×0.5 mm)
Tag-it HF-I Plus: Wafer (200mm / 8 inch), die size 1296 × 1116 μm (excluding scribe), available with grinding to 265 μm or 150 μm, NI/AU or AU bumps, sawn on foil frame

Security

ICODE SLIX-L: 32-bit Privacy password with Privacy Mode, 32-bit Destroy password with irreversible DESTROY command, 32-bit EAS/AFI password for Electronic Article Surveillance and Application…
Tag-it HF-I Plus: Individual block locking (user and factory lock bits), unique 64-bit UID factory-programmed and locked

Spec	ICODE SLIX-L	Tag-it HF-I Plus
Frequency	13.56 MHz	13.56 MHz
Protocol	ISO/IEC 15693, ISO/IEC 18000-3	ISO/IEC 15693, ISO/IEC 18000-3
Memory	512 bits (64 bytes) total, organized in 16 blocks of 4 bytes; 256 bits (32 bytes) user memory	2048 bits (256 bytes) user memory organized in 64 blocks of 32 bits each, EEPROM
Interface	RF (contactless)	RF (contactless)
Temp Range	-40°C to +85°C (junction temperature)	-40°C to +85°C
Form Factor	Wafer (SL2S5002FUD: 520×484 µm, SL2S5102FUD: 520×607 µm, 120 µm thick), XSON3 package (SOT1122: 1×1.45×0.5 mm)	Wafer (200mm / 8 inch), die size 1296 × 1116 μm (excluding scribe), available with grinding to 265 μm or 150 μm, NI/AU or AU bumps, sawn on foil frame
Security	32-bit Privacy password with Privacy Mode, 32-bit Destroy password with irreversible DESTROY command, 32-bit EAS/AFI password for Electronic Article Surveillance and Application…	Individual block locking (user and factory lock bits), unique 64-bit UID factory-programmed and locked

Verdict

Choose ICODE SLIX-L if you need advanced password-based security features in a compact, cost-optimized form factor. With 32 bytes of user memory organized in 16 blocks of 4 bytes, this chip is designed for applications requiring minimal data storage but robust access control. It provides three separate 32-bit passwords: Privacy mode for read/write protection, Destroy password for irreversible deactivation, and EAS/AFI password for retail anti-theft systems. The reduced-power design makes it suitable for library management, basic item tagging, and applications where battery life of readers is a consideration. The chip follows ISO/IEC 15693 and ISO/IEC 18000-3 standards at 13.56 MHz and includes a unique 64-bit UID. The block write-lock feature allows permanent protection of specific data blocks once written. Choose Tag-it HF-I Plus if your application demands significantly larger data storage capacity and you can work with simpler lock-based security. With 256 bytes of user memory organized in 64 blocks of 32 bits each, this chip offers 8 times more user memory than the ICODE SLIX-L, making it suitable for storing extended product information, batch numbers, serialization data, or multi-part tracking records. The EEPROM-based memory supports individual block locking through both user-settable and factory lock bits, allowing granular control over which data blocks remain writable. While it lacks the password authentication of SLIX-L, the permanent locking mechanism is sufficient for many supply chain and item tracking applications. Operating at 13.56 MHz with ISO/IEC 15693 and ISO/IEC 18000-3 compliance, it includes a factory-programmed and locked 64-bit UID for guaranteed uniqueness in large-scale deployments.

FAQ

What is the memory difference between ICODE SLIX-L and Tag-it HF-I Plus?

ICODE SLIX-L has 32 bytes of user memory in 16 blocks of 4 bytes each, while Tag-it HF-I Plus provides 256 bytes of user memory in 64 blocks of 32 bits (4 bytes) each. Tag-it HF-I Plus offers 8 times more user memory capacity.

Do both chips support password protection?

No, only ICODE SLIX-L supports password protection with three separate 32-bit passwords for Privacy, Destroy, and EAS/AFI functions. Tag-it HF-I Plus uses individual block locking with user and factory lock bits instead of password authentication.

Are ICODE SLIX-L and Tag-it HF-I Plus compatible with the same readers?

Yes, both chips operate at 13.56 MHz and comply with ISO/IEC 15693 and ISO/IEC 18000-3 standards, making them compatible with the same reader infrastructure. Both include factory-programmed 64-bit UIDs for unique identification.

Sourcing ICODE SLIX-L or Tag-it HF-I Plus in volume?

Roxtron builds custom RFID and NFC products around both ICODE SLIX-L and Tag-it HF-I Plus. Tell us your project — quantities, form factor, timeline — and we'll come back within 24 hours with pricing and lead times.