STMicroelectronics ST25TV02K-AP6G3

Overview

ST25TV02K-AP6G3 from STMicroelectronics is an NFC Forum Type 5 RFID tag IC with 2-Kbit EEPROM, ISO/IEC 15693-compliant contactless interface, TruST25 digital signature, tamper-detect capability (TD0/TD1), and dual-area password protection (32-bit encrypted per area). It operates at 13.56 MHz, supports Fast Read up to 53 Kbit/s, and delivers 60-year data retention for secure product authentication in high-value consumables and industrial asset tagging.

For engineers reviewing the ST25TV02K-AP6G3 datasheet, ST25TV02K-AP6G3 pinout, ST25TV02K-AP6G3 application, or ST25TV02K-AP6G3 equivalent, key selection criteria include tamper-loop interface compatibility, EAS activation support, kill/untraceable mode implementation, and RF-accessible memory partitioning with block-level locking.

Technical Context

The ST25TV02K-AP6G3 implements a dedicated ISO/IEC 15693 RF front-end with internal tuning capacitance (23 pF / 99.7 pF), enabling direct antenna coil connection without external matching components. Its memory architecture separates user EEPROM (64 blocks × 4 bytes) from system configuration registers, each protected by distinct encrypted passwords and lock states.

Security logic enforces hierarchical access control: Area 0 is always readable but individually lockable; Areas 1 and 2 require 32-bit password presentation to open read/write security sessions; configuration writes demand PWD_CFG validation and LOCK_CFG = 0. Tamper detection triggers on TD0/TD1 loop open/short events, feeding into event counter and untraceable mode activation.

Key Specifications

Pinout & Package

ST25TV02K-AP6G3 uses a 5-pin DFN package (ECOPACK2, RoHS compliant), optimized for direct die bonding or wafer-level integration. Antenna and tamper interfaces are fully isolated - no shared pins or internal multiplexing.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar NFC/RFID tag applications.

Compared with NT3H2211W0FHKH and N24RF04, ST25TV02K-AP6G3 uniquely combines tamper-loop hardware, cryptographic origin verification, and ISO/IEC 15693 Fast Read - making it the sole choice for regulatory-grade anti-counterfeiting where physical and digital trust layers must coexist.

Availability

ST25TV02K-AP6G3 is available at Aetrix Electronics and suitable for pharmaceutical serialization, luxury goods authentication, industrial asset tracking, and retail inventory management requiring stable component supply and long-term lifecycle assurance.

Supply support for ST25TV02K-AP6G3 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

STMicroelectronics is a global semiconductor leader headquartered in Geneva, Switzerland, designing and manufacturing microcontrollers, power management ICs, sensors, and secure connectivity solutions for industrial, automotive, and consumer markets.

ST25TV02K belongs to the ST25TV family of NFC Forum Type 5 tag ICs engineered specifically for high-assurance product identification - integrating tamper detection, digital signatures, and configurable memory protection to meet regulatory requirements in pharma, luxury, and aerospace sectors.

FAQ

What is the function of the TD0 and TD1 pins?

TD0 and TD1 form a dedicated tamper-detect loop interface. When connected as a continuous conductive path, the IC monitors for opens or shorts; detection triggers the 16-bit anti-tearing event counter and can activate untraceable mode. These pins are electrically isolated from the RF antenna (AC0/AC1) and require no external bias or pull-ups.

How does the TruST25 digital signature differ from standard UID-based authentication?

TruST25 is a 256-bit cryptographic signature stored in the system configuration area, generated using ST's proprietary root key. Unlike the factory-programmed 64-bit UID (which can be cloned), TruST25 proves genuine silicon origin - verified by reading the signature and validating it against ST's public key, preventing emulation or duplication of authentic tags.

Can the ST25TV02K-AP6G3 operate without an external antenna capacitor?

Yes. The IC integrates two selectable internal tuning capacitances (23 pF and 99.7 pF), allowing direct connection to a printed antenna trace without external capacitors. This simplifies PCB layout and reduces BOM count, though external fine-tuning remains possible if higher Q-factor or frequency tolerance is required.

What happens when the Kill command is executed with an incorrect password?

No action occurs - the IC ignores the command and maintains normal operation. The Kill command (0xA6) only executes if the correct 32-bit PWD_KILL is presented in the same frame. After successful execution, the device becomes permanently unresponsive to all RF commands, including inventory requests, and draws no current from the RF field.