ICODE SLI vs Tag-it HF-I Plus
Compare ICODE SLI (112 bytes user memory, EAS) vs Tag-it HF-I Plus (256 bytes, dual ISO standard). Both 13.56 MHz ISO 15693 chips for item tracking.
Side-by-side specs
- ICODE SLI
- 13.56 MHz
- Tag-it HF-I Plus
- 13.56 MHz
- ICODE SLI
- ISO/IEC 15693-2, ISO/IEC 15693-3
- Tag-it HF-I Plus
- ISO/IEC 15693, ISO/IEC 18000-3
- ICODE SLI
- 1024 bits (32 blocks × 4 bytes), 28 user blocks (112 bytes user memory)
- Tag-it HF-I Plus
- 2048 bits (256 bytes) user memory organized in 64 blocks of 32 bits each, EEPROM
- ICODE SLI
- RF (contactless)
- Tag-it HF-I Plus
- RF (contactless)
- ICODE SLI
- Not specified in datasheet
- Tag-it HF-I Plus
- -40°C to +85°C
- ICODE SLI
- Wafer/die (for label integration)
- 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
- ICODE SLI
- Unique 64-bit UID, block-level write protection (lock mechanism), EAS (Electronic Article Surveillance) bit, AFI (Application Family Identifier), DSFID (Data Storage Format…
- Tag-it HF-I Plus
- Individual block locking (user and factory lock bits), unique 64-bit UID factory-programmed and locked
| Spec | ICODE SLI | Tag-it HF-I Plus |
|---|---|---|
| Frequency | 13.56 MHz | 13.56 MHz |
| Protocol | ISO/IEC 15693-2, ISO/IEC 15693-3 | ISO/IEC 15693, ISO/IEC 18000-3 |
| Memory | 1024 bits (32 blocks × 4 bytes), 28 user blocks (112 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 | Not specified in datasheet | -40°C to +85°C |
| Form Factor | Wafer/die (for label integration) | 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 | Unique 64-bit UID, block-level write protection (lock mechanism), EAS (Electronic Article Surveillance) bit, AFI (Application Family Identifier), DSFID (Data Storage Format… | Individual block locking (user and factory lock bits), unique 64-bit UID factory-programmed and locked |
Verdict
FAQ
What is the memory difference between ICODE SLI and Tag-it HF-I Plus?
ICODE SLI provides 112 bytes of user memory (28 blocks × 4 bytes), while Tag-it HF-I Plus offers 256 bytes of user memory (64 blocks × 4 bytes), giving the Tag-it more than double the user-accessible storage capacity.
Do both chips support ISO 15693 protocol?
Yes, both chips support ISO/IEC 15693. The ICODE SLI supports ISO 15693-2 and 15693-3, while the Tag-it HF-I Plus additionally supports ISO/IEC 18000-3 for broader compatibility.
Which chip has Electronic Article Surveillance for retail?
Only the NXP ICODE SLI includes an EAS (Electronic Article Surveillance) bit and AFI/DSFID fields designed for retail and library anti-theft systems. The Tag-it HF-I Plus does not have dedicated EAS functionality.
Sourcing ICODE SLI or Tag-it HF-I Plus in volume?
Roxtron builds custom RFID and NFC products around both ICODE SLI 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.