STMicroelectronics ST25TV02KC-TFH3

Overview

ST25TV02KC-TFH3 from STMicroelectronics is an NFC Forum Type 5 RFID tag IC compliant with ISO/IEC 15693, featuring 2-Kbit EEPROM, tamper-detect capability (TD0/TD1), TruST25 digital signature, and dual-area password protection (32-bit per area). It operates contactlessly at 13.56 MHz, supports Fast Read up to 53 Kbit/s, and delivers 60-year data retention for secure product authentication in anti-counterfeiting and high-value asset tracking.

For engineers reviewing the ST25TV02KC-TFH3 datasheet, ST25TV02KC-TFH3 pinout, ST25TV02KC-TFH3 application, or ST25TV02KC-TFH3 equivalent, key selection considerations include tamper-loop interface compatibility, ISO/IEC 15693 subcarrier mode support, EAS activation capability, and encrypted password-based memory partitioning for multi-tier access control.

Technical Context

The device implements a fully integrated RF front-end tuned for 13.56 MHz operation with internal capacitances of 23 pF and 99.7 pF, enabling direct connection to external antenna coils without external matching components. Its RF protocol stack supports all ISO/IEC 15693 modulation schemes (100% ASK, 10% ASK), coding (Manchester, Pulse Position), and subcarrier modes (1-of-4, 1-of-256).

Memory access is block-oriented (4-byte blocks), with dedicated configuration registers controlling area partitioning (two or three user areas), kill/untraceable mode activation, and tamper-detect loop monitoring. The TruST25 signature is stored in a read-only 64-bit system block and verified during inventory to ensure chip authenticity.

Key Specifications

Pinout & Package

ST25TV02KC-TFH3 is housed in a 5-pin DFN package (ECOPACK2, RoHS-compliant), optimized for embedding into compact labels and smart packaging. The die features sawn-and-bumped wafer construction with bottom-side pad layout.

Key Features

Applications

Equivalent & Alternatives

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

Compared with NT3H2111W0FHKH and N24RF04, ST25TV02KC-TFH3 uniquely combines ISO/IEC 15693 compliance, tamper-loop hardware, and TruST25 signature-making it the sole option for physically secure, long-range, smartphone- and reader-compatible anti-counterfeiting deployments.

Availability

ST25TV02KC-TFH3 is available at Aetrix Electronics and suitable for pharmaceutical serialization, luxury goods authentication, industrial equipment tracking, and retail inventory management requiring stable component supply across multi-year production cycles.

Supply support for ST25TV02KC-TFH3 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, analog ICs, MEMS, and secure RFID solutions for industrial, automotive, and consumer markets.

ST25TV02KC-TFH3 belongs to the ST25TV family of NFC/RFID tag ICs engineered specifically for high-assurance product identification, anti-counterfeiting, and tamper-evident data storage in regulated and premium-goods supply chains.

FAQ

What is the function of the TD0 and TD1 pins?

TD0 and TD1 form a dedicated tamper-detect loop interface. When a conductive wire connects these pins, the IC monitors continuity: an open circuit triggers permanent kill mode, while a short circuit activates untraceable mode or EAS alarm. This hardware-level detection requires no external controller and is active during all RF operational states.

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

The TruST25 signature is a cryptographically generated 64-bit value stored in a read-only system block and bound to the silicon's unique manufacturing fingerprint. Unlike a static UID, it cannot be cloned or replicated-even with identical memory contents-enabling hardware-rooted origin verification that defeats emulation attacks targeting UID spoofing.

Can ST25TV02KC-TFH3 operate without an external antenna coil?

No. ST25TV02KC-TFH3 requires an external LC resonant circuit formed by connecting AC0 and AC1 to a printed or wound antenna coil plus optional tuning capacitors. The IC contains no integrated inductor or oscillator; its RF energy harvesting and communication depend entirely on magnetic coupling to an externally powered 13.56 MHz field.

What happens when the Kill command is executed successfully?

Upon successful execution of the Kill command with the correct PWD_KILL, the IC enters Kill Mute mode: it ceases all RF responses-including inventory requests-and becomes permanently non-responsive to any further commands. No reset, power cycle, or field removal restores functionality; the tag is electrically and irrevocably disabled.