The ST25TA series (formerly known as SRTAG series) provides an NFC Forum tag type 4 RF interface and supports the NFC data exchange format (NDEF). This enables NFC use cases such as NFC tag, NFC token, NFC smart poster, NFC business card (Virtual card). It can be used in a wide variety of applications, including consumer electronics, computer peripherals, gaming, home appliances, industrial automation and healthcare products.
- NFC forum tag type 4 based on ISO14443-A RF interface
- EEPROM memory density from 512-bit to 64-Kbit with built-in NDEF message support
- 20-bit events counter with anti-tearing
- Data protection with 128-bit password in Read and Write access
- Optional user-programmable digital output (Field detect, Write In Progress, RF busy,…)
- TruST25™ digital signature (ST25TA512B / ST25TA02KB / ST25TA02KB-D / ST25TA02KB-P)
Featured Videos
Recommended for you
- ST25TA02KB NFC Forum Type 4 Tag IC with 2-Kbit 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
- ST25TA16K NFC Forum Type 4 Tag IC with 16-Kbit EEPROM
- ST25TA64K NFC Forum Type 4 Tag IC with 64-Kbit EEPROM
eDesignSuite
eDesignSuite is a comprehensive set of easy-to-use design-aid utilities ready to help you streamline the system development process with a wide range of ST products.
NFC/RFID Calculators
Choose design tool: 
Input geometry and substrate properties Get antenna impedance 
Enter forward and reverse link characteristics The tool returns link budget estimate 
Enter antenna parameter and matching target Select the topology of the matching network The tool returns component values for the desired design targets
NFC Inductance
Input geometry and substrate properties Get antenna impedance UHF Link Budget
Enter forward and reverse link characteristics The tool returns link budget estimate NFC Tuning Circuit
Enter antenna parameter and matching target Select the topology of the matching network The tool returns component values for the desired design targets Power Supply Design Tool
Power Supply Design Tool
Active Filters
Comparators
Current Sensing
LED Lighting Design Tool
Rectifier Diodes Simulator
STPOWER Studio
AC Switches Simulator
Power Supply Design Tool
TVS Simulator
Power Supply Design Tool
LED Lighting Design Tool
NFC Tuning Circuit
NFC Inductance