ICODE SLIX vs ST25TV02K

NXP ICODE SLIX (896-bit user memory) vs STMicro ST25TV02K (2048-bit EEPROM). Compare ISO 15693 tags for EAS, password security, and energy harvesting.

Side-by-side specs

Frequency

ICODE SLIX: 13.56 MHz
ST25TV02K: 13.56 MHz

Protocol

ICODE SLIX: ISO/IEC 15693-3, ISO/IEC 15693-2, ISO/IEC 18000-3
ST25TV02K: ISO/IEC 15693, ISO/IEC 18000-3 mode 1, NFC Forum Type 5

Memory

ICODE SLIX: 1024 bits organized in 32 blocks of 4 bytes each (896 bits user memory, 128 bits configuration area)
ST25TV02K: 256 bytes (2048 bits) EEPROM, organized in 64 blocks of 4 bytes

Interface

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

Temp Range

ICODE SLIX: -40°C to +85°C (junction temperature)
ST25TV02K: -25°C to +85°C

Form Factor

ICODE SLIX: Wafer (SL2S2002FUD, SL2S2102FUD: 120 μm, bumped), XSON3 SOT1122 (1 x 1.45 x 0.5 mm), MOA8 SOT500-4 (35 mm tape)
ST25TV02K: SO8, TSSOP8, UFDFPN8

Security

ICODE SLIX: Unique 64-bit UID (non-alterable), 32-bit EAS/AFI password protection, lock mechanism for user memory blocks, DSFID, AFI, and EAS
ST25TV02K: 32-bit password protection, lock bits, AFI (Application Family Identifier)

Spec	ICODE SLIX	ST25TV02K
Frequency	13.56 MHz	13.56 MHz
Protocol	ISO/IEC 15693-3, ISO/IEC 15693-2, ISO/IEC 18000-3	ISO/IEC 15693, ISO/IEC 18000-3 mode 1, NFC Forum Type 5
Memory	1024 bits organized in 32 blocks of 4 bytes each (896 bits user memory, 128 bits configuration area)	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 (SL2S2002FUD, SL2S2102FUD: 120 μm, bumped), XSON3 SOT1122 (1 x 1.45 x 0.5 mm), MOA8 SOT500-4 (35 mm tape)	SO8, TSSOP8, UFDFPN8
Security	Unique 64-bit UID (non-alterable), 32-bit EAS/AFI password protection, lock mechanism for user memory blocks, DSFID, AFI, and EAS	32-bit password protection, lock bits, AFI (Application Family Identifier)

Verdict

Choose ICODE SLIX if you need Electronic Article Surveillance (EAS) functionality with 32-bit password protection specifically for anti-theft applications. The chip provides 896 bits of user memory organized in 32 blocks of 4 bytes each, with a unique non-alterable 64-bit UID and dedicated EAS/AFI password protection. The lock mechanism allows individual user memory blocks to be permanently locked, and the chip supports DSFID (Data Storage Format Identifier) alongside AFI and EAS flags. This makes it suitable for library management, retail loss prevention, and access control where EAS integration is required. Both chips operate at 13.56 MHz and comply with ISO/IEC 15693 and ISO/IEC 18000-3 standards, but ICODE SLIX focuses on privacy protection and anti-theft features rather than advanced power management. Choose ST25TV02K if you require double the memory capacity (256 bytes or 2048 bits total EEPROM) and need energy harvesting capabilities for powering external circuits. The chip organizes memory into 64 blocks of 4 bytes and supports NFC Forum Type 5 tag specification in addition to ISO/IEC 15693 and ISO/IEC 18000-3 mode 1. The energy harvesting output enables you to extract power from the RF field to drive low-power sensors, LEDs, or microcontrollers, which ICODE SLIX cannot provide. While it offers 32-bit password protection and lock bits for security, it lacks dedicated EAS functionality. This chip suits applications like smart packaging, sensor tags, industrial automation, and IoT deployments where NFC compatibility, larger storage, and energy scavenging from the reader field are priorities over traditional anti-theft features.

FAQ

What is the memory difference between ICODE SLIX and ST25TV02K?

ICODE SLIX provides 896 bits of user memory (112 bytes) in 32 blocks, while ST25TV02K offers 2048 bits (256 bytes) EEPROM in 64 blocks. The ST25TV02K has more than double the total storage capacity.

Does ST25TV02K support EAS like ICODE SLIX?

No, ST25TV02K does not have dedicated EAS (Electronic Article Surveillance) functionality. ICODE SLIX includes specific EAS flags and 32-bit EAS/AFI password protection designed for anti-theft applications, which ST25TV02K lacks.

Can ICODE SLIX perform energy harvesting like ST25TV02K?

No, ICODE SLIX does not have an energy harvesting output pin. ST25TV02K uniquely provides an energy harvesting output that can extract power from the RF field to supply external components like sensors or microcontrollers.

Sourcing ICODE SLIX or ST25TV02K in volume?

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