The ST25T product family offers a wide range of NFC RFID tags, ICs and chips featuring from 512-bit to 64-Kbit EEPROM memory. They include short-range (ISO/IEC 14443 Type A or B) and long-range (ISO/IEC 15693) products covering the main standards and a large diversity of contactless applications.
ST25T Series: NFC/RFID tags and chips
ST25TA Series
RFID NFC tag ICs with ISO/IEC 14443 Type A RF interface (NFC Forum Type 4), NDEF memory, 128-bit password protection and TruST25 digital signature.
Examples of applications: smart posters, business cards, gaming, NFC tags and more.
ST25TB Series
RFID NFC chips with ISO/IEC 14443 Type B RF interface, large and unique counting capability with anti-tearing feature and anti-collision mechanism.
Examples of applications: public transportation, event ticketing, asset tracking, brand protection, identification.
ST25TV Series
NFC Forum certified tag ICs with ISO/IEC 15693 RF interface (NFC Forum Type 5), TruST25 digital signature, Tamper Detect and privacy features.
Examples of applications: consumer engagement, product identification, anti-counterfeiting, brand protection, gaming, access control, asset tracking.
The benefit of our 10 year longevity program is available to a part of the devices making them suitable for deployment in Industrial-grade and Medical NFC / RFID applications.
ST25 Webapp - Use your Android phone to communicate with ST25 NFC / RFID Tags without having to download any application.
Key features of ST25T NFC/RFID tags

Feature-rich
- 13.56 MHz HF interface
- Up to 32-bit counter with anti-tearing
- Field detect (GPO)
- OTP bytes

Best-In-Class memory
- From 512bit to 64-Kbit EEPROM
- Up to 200 year data retention
- 1M erase-write cycles
- Up to 128-bit password

Ecosystem
- Documentation (application notes, datasheets, product presentation, videos...)
- Evaluation boards
- Antenna Design Tool
- Associated NFC/RFID software
- ST25 Community
Featured Videos
- ST25TV02KC NFC Type 5 / RFID tag IC with EEPROM with 2.5-Kbit, product identification and protection
- ST25TV16K NFC Type 5 / RFID tag IC with 16-Kbit EEPROM and protection
- ST25TV64K NFC Type 5 / RFID tag IC with 64-Kbit EEPROM and protection
- ST25TV512C NFC Type 5 / RFID tag IC with 512-bits EEPROM, product identification and protection
- ST25TV04K-P NFC Type 5 / RFID tag IC with 4-Kbit EEPROM and protection
- ST25TV02K NFC Type 5 / RFID tag IC with 2-Kbit EEPROM, product identification and protection
- ST25TV512 NFC Type 5 / RFID tag IC with 512-bit EEPROM, product identification and protection
- ST25TA02KB NFC Forum Type 4 Tag IC with 2-Kbit EEPROM
- ST25TA512 NFC Forum Type 4 Tag IC with 512-bit EEPROM
- ST25TA02KB-D NFC Forum Type 4 Tag IC with 2-Kbit EEPROM and general purpose digital output
- ST25TA02KB-P NFC Forum Type 4 Tag IC with 2-Kbit EEPROM and general purpose digital output
- ST25TA512B NFC Forum Type 4 Tag IC with 512-bit EEPROM
- ST25TA02K NFC Forum Type 4 Tag IC with 2-Kbit EEPROM
- ST25TA16K NFC Forum Type 4 Tag IC with 16-Kbit EEPROM
- ST25TA64K NFC Forum Type 4 Tag IC with 64-Kbit EEPROM
- ST25TA02K-P NFC Forum Type 4 Tag IC with 2-Kbit EEPROM and general purpose digital output
- ST25TA02K-D NFC Forum Type 4 Tag IC with 2-Kbit EEPROM and general purpose digital output
- ST25TB02K 13.56 MHz short-range contactless memory chip with 2048-bit EEPROM and anticollision functions
- ST25TB04K 13.56 MHz short-range contactless memory chip with 4096-bit EEPROM and anticollision functions
- ST25TB512-AT 13.56 MHz short-range contactless memory chip with 512-bit EEPROM and anticollision functions
- ST25TB512-AC 13.56 MHz short-range contactless memory chip with 512-bit EEPROM and anticollision fucntions