ICODE SLI-L vs Tag-it HF-I Standard
Compare NXP ICODE SLI-L (32 bytes, privacy passwords, 1.5m range) vs TI Tag-it HF-I Standard (256 bytes, block locking). ISO 15693 HF RFID chips compared.
Side-by-side specs
Frequency
- ICODE SLI-L
- 13.56 MHz
- Tag-it HF-I Standard
- 13.56 MHz
Protocol
- ICODE SLI-L
- ISO/IEC 15693-2/3 (I•CODE SLI-L functionality), EPC Class 1 (Long Range CMD)
- Tag-it HF-I Standard
- ISO/IEC 15693, ISO/IEC 18000-3
Memory
- ICODE SLI-L
- 32 bytes user memory (8 blocks × 4 bytes), 512 bits total EEPROM, 64-bit unique UID
- Tag-it HF-I Standard
- 2048 bits (256 bytes) user memory organized in 64 blocks of 32 bits (4 bytes) each, plus 64-bit UID, DSFID, AFI
Interface
- ICODE SLI-L
- RF (contactless), up to 53 kbit/s data rate, 1.5 m read range
- Tag-it HF-I Standard
- RF (contactless)
Temp Range
- Tag-it HF-I Standard
- -40°C to +85°C operating, -40°C to +125°C storage
Form Factor
- ICODE SLI-L
- FFC (sawn wafer 150 µm on film frame carrier), FCP (Flip Chip Package), MOA2 module PLMCC-05 SOT500AA1
- Tag-it HF-I Standard
- Wafer (200 mm / 8 inch diameter, 265 µm thick after grinding), die size 1296 µm × 1116 µm, bumped (Ni/Au chemical bumps, 25 µm height)
Security
- ICODE SLI-L
- 32-bit Privacy password, 32-bit Destroy password, 32-bit EAS password, unique non-alterable UID, lock mechanism per memory block, password-protected EAS functionality, Privacy mode
- Tag-it HF-I Standard
- Individual block locking (user lock and factory lock per block), irreversible write protection
| Spec | ICODE SLI-L | Tag-it HF-I Standard |
|---|---|---|
| Frequency | 13.56 MHz | 13.56 MHz |
| Protocol | ISO/IEC 15693-2/3 (I•CODE SLI-L functionality), EPC Class 1 (Long Range CMD) | ISO/IEC 15693, ISO/IEC 18000-3 |
| Memory | 32 bytes user memory (8 blocks × 4 bytes), 512 bits total EEPROM, 64-bit unique UID | 2048 bits (256 bytes) user memory organized in 64 blocks of 32 bits (4 bytes) each, plus 64-bit UID, DSFID, AFI |
| Interface | RF (contactless), up to 53 kbit/s data rate, 1.5 m read range | RF (contactless) |
| Temp Range | — | -40°C to +85°C operating, -40°C to +125°C storage |
| Form Factor | FFC (sawn wafer 150 µm on film frame carrier), FCP (Flip Chip Package), MOA2 module PLMCC-05 SOT500AA1 | Wafer (200 mm / 8 inch diameter, 265 µm thick after grinding), die size 1296 µm × 1116 µm, bumped (Ni/Au chemical bumps, 25 µm height) |
| Security | 32-bit Privacy password, 32-bit Destroy password, 32-bit EAS password, unique non-alterable UID, lock mechanism per memory block, password-protected EAS functionality, Privacy mode | Individual block locking (user lock and factory lock per block), irreversible write protection |
Verdict
Choose ICODE SLI-L if you need privacy protection, extended read range, or anti-theft features in a compact memory footprint. This chip provides 32 bytes of user memory with three independent password protection systems: a 32-bit Privacy password for access control, a 32-bit Destroy password for permanent deactivation, and a 32-bit EAS password for retail security applications. The ICODE SLI-L supports read ranges up to 1.5 metres and offers 53 kbit/s data rates with ISO/IEC 15693-2/3 compatibility plus EPC Class 1 Long Range commands. Each of its 8 memory blocks can be individually locked, and the chip includes a dedicated Privacy mode that restricts unauthorized access. The 64-bit unique UID is non-alterable, providing reliable item identification for supply chain tracking, library management, or retail applications where space is limited but security and read distance matter.
Choose Tag-it HF-I Standard if you require substantially more user memory and prefer simpler lock-based security without password overhead. This chip offers 256 bytes (2048 bits) of user memory organized in 64 blocks of 4 bytes each, providing eight times the storage capacity of the ICODE SLI-L. It complies with both ISO/IEC 15693 and ISO/IEC 18000-3 standards and includes a 64-bit UID plus DSFID and AFI bytes for application and data storage family identification. Security is implemented through individual block locking with both user-settable locks and factory locks, offering irreversible write protection per block. The Tag-it HF-I Standard operates at 13.56 MHz like the ICODE SLI-L but does not specify extended read range or privacy password features. This chip suits applications like pharmaceutical tracking, industrial asset management, or logistics where larger data storage for product information, maintenance records, or batch details is essential and straightforward permanent locking is adequate.
FAQ
What is the memory difference between ICODE SLI-L and Tag-it HF-I Standard?
ICODE SLI-L provides 32 bytes of user memory in 8 blocks, while Tag-it HF-I Standard offers 256 bytes in 64 blocks—eight times more storage capacity for applications requiring extensive data.
Which chip has better security features for privacy protection?
ICODE SLI-L offers password-based security with three independent 32-bit passwords (Privacy, Destroy, and EAS) plus Privacy mode, whereas Tag-it HF-I Standard uses simpler block-level locking without password protection.
Do both chips support ISO 15693 protocol?
Yes, both are ISO/IEC 15693 compliant. ICODE SLI-L additionally supports EPC Class 1 Long Range commands, while Tag-it HF-I Standard also complies with ISO/IEC 18000-3.
Sourcing ICODE SLI-L or Tag-it HF-I Standard in volume?
Roxtron builds custom RFID and NFC products around both ICODE SLI-L and Tag-it HF-I Standard. Tell us your project — quantities, form factor, timeline — and we'll come back within 24 hours with pricing and lead times.