CATEGORIES

ST25TA series NFC tags

Overview
Product selector
Solutions
Documentation
CAD Resources
Tools & Software
eDesignSuite

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)
Download our whitepaper to discover how NFC improves user experience

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:

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