ICODE SLIX-L vs ST25TV02K

NXP ICODE SLIX-L (32-byte user memory) vs STMicroelectronics ST25TV02K (256-byte EEPROM with energy harvesting). Compare ISO 15693 tags for your application.

Side-by-side specs

Frequency

ICODE SLIX-L: 13.56 MHz
ST25TV02K: 13.56 MHz

Protocol

ICODE SLIX-L: ISO/IEC 15693, ISO/IEC 18000-3
ST25TV02K: ISO/IEC 15693, ISO/IEC 18000-3 mode 1, NFC Forum Type 5

Memory

ICODE SLIX-L: 512 bits (64 bytes) total, organized in 16 blocks of 4 bytes; 256 bits (32 bytes) user memory
ST25TV02K: 256 bytes (2048 bits) EEPROM, organized in 64 blocks of 4 bytes

Interface

ICODE SLIX-L: RF (contactless)
ST25TV02K: RF (contactless), Energy Harvesting output

Temp Range

ICODE SLIX-L: -40°C to +85°C (junction temperature)
ST25TV02K: -25°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)
ST25TV02K: SO8, TSSOP8, UFDFPN8

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…
ST25TV02K: 32-bit password protection, lock bits, AFI (Application Family Identifier)

Spec	ICODE SLIX-L	ST25TV02K
Frequency	13.56 MHz	13.56 MHz
Protocol	ISO/IEC 15693, ISO/IEC 18000-3	ISO/IEC 15693, ISO/IEC 18000-3 mode 1, NFC Forum Type 5
Memory	512 bits (64 bytes) total, organized in 16 blocks of 4 bytes; 256 bits (32 bytes) user memory	256 bytes (2048 bits) EEPROM, organized in 64 blocks of 4 bytes
Interface	RF (contactless)	RF (contactless), Energy Harvesting output
Temp Range	-40°C to +85°C (junction temperature)	-25°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)	SO8, TSSOP8, UFDFPN8
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…	32-bit password protection, lock bits, AFI (Application Family Identifier)

Verdict

Choose the ICODE SLIX-L if you need a cost-optimized, low-power library tag for simple item identification with minimal data storage requirements. With 32 bytes of user memory (256 bits) organized in 16 blocks, this chip is ideal for basic tracking, access control, or library management where the data payload is small—storing simple IDs, counters, or status flags. The ICODE SLIX-L offers robust security with three separate 32-bit passwords: Privacy mode for hiding memory contents, Destroy for permanent deactivation, and EAS/AFI password protection for anti-theft systems. Its reduced power consumption makes it suitable for applications where read range and battery-free operation at lower field strengths are priorities. The 64-bit unique UID provides reliable identification, and individual block write-lock ensures data integrity for critical fields. Choose the ST25TV02K if your application requires substantially more data storage or energy harvesting capabilities. With 256 bytes of EEPROM (2048 bits) organized in 64 blocks, the ST25TV02K provides 8 times the total memory capacity of the ICODE SLIX-L, making it suitable for applications like smart packaging, sensor data logging, product authentication with extended information, or IoT edge nodes. The dedicated energy harvesting output is the key differentiator—it allows you to power external circuits (microcontrollers, sensors, LEDs) directly from the RF field, enabling semi-active tag functionality without batteries. While it offers 32-bit password protection and AFI support similar to the ICODE SLIX-L, it lacks the dedicated Privacy and Destroy password modes. The ST25TV02K additionally supports NFC Forum Type 5, ensuring broader smartphone compatibility for consumer-facing NFC applications. If you need to store configuration data, sensor readings, or supply chain information beyond simple identification, the ST25TV02K's larger memory and energy harvesting make it the clear choice despite a higher unit cost.

FAQ

What is the memory difference between ICODE SLIX-L and ST25TV02K?

The ICODE SLIX-L has 32 bytes of user memory (256 bits) in 16 blocks, while the ST25TV02K offers 256 bytes (2048 bits) in 64 blocks—8 times more total memory capacity for storing extended product data or sensor information.

Does the ST25TV02K support energy harvesting while the ICODE SLIX-L does not?

Yes. The ST25TV02K features a dedicated energy harvesting output that can power external circuits from the RF field, while the ICODE SLIX-L is a passive tag without energy harvesting capability, limiting it to pure identification and data storage functions.

Which chip offers better security features for library or retail applications?

The ICODE SLIX-L provides more granular security with three separate 32-bit passwords (Privacy, Destroy, and EAS/AFI), including a Privacy Mode to hide memory contents and an irreversible Destroy command. The ST25TV02K has 32-bit password protection and AFI support but lacks the dedicated Privacy and Destroy modes.

Sourcing ICODE SLIX-L or ST25TV02K in volume?

Roxtron builds custom RFID and NFC products around both ICODE SLIX-L and ST25TV02K. Tell us your project — quantities, form factor, timeline — and we'll come back within 24 hours with pricing and lead times.