STMicroelectronics ST25TV04K-PE6G3

Overview

ST25TV04K-PE6G3 from STMicroelectronics is an NFC Forum Type 5 contactless RFID tag IC with 4-Kbit EEPROM, ISO/IEC 15693-compliant RF interface, integrated 28.5 pF tuning capacitance, and configurable GPO/energy harvesting outputs. It operates from -40 to +85 °C, delivers 5 ms block write time, and supports kill-mode privacy protection for secure asset tagging in industrial logistics and smart packaging.

For engineers reviewing the ST25TV04K-PE6G3 datasheet, ST25TV04K-PE6G3 pinout, ST25TV04K-PE6G3 application, or ST25TV04K-PE6G3 equivalent, key selection criteria include RF field detection latency, multi-area password-protected memory partitioning, fast read capability (up to 53 Kbit/s), and energy harvesting analog output (V_EH) behavior under varying RF field strength.

Technical Context

The ST25TV04K-PE6G3 implements a fully autonomous ISO/IEC 15693 analog front end with on-die 28.5 pF tuning capacitance, eliminating external matching components. Its digital unit handles protocol decoding, memory control, and dynamic register management without host intervention.

Memory access is strictly block-oriented (4-byte blocks), with user memory organized into up to four independently protected areas using three 64-bit passwords. The system configuration area includes ENDAi registers for area boundary definition and dedicated KILL, GPO, and EH_MODE control bits - all writable only after opening a password-secured configuration session.

Key Specifications

Pinout & Package

ST25TV04K-PE6G3 is housed in a 6-pin wafer-level chip-scale package (WL-CSP) with 0.4 mm pitch, optimized for direct antenna integration on flexible PCBs or laminated substrates. No external decoupling or tuning components required due to integrated 28.5 pF capacitance.

Key Features

Applications

Equivalent & Alternatives

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

Compared with NT3H2111W0FHKH and SL3S4011TT1P, ST25TV04K-PE6G3 uniquely integrates antenna tuning capacitance, GPO event signaling, and energy harvesting - reducing BOM count and enabling truly autonomous, battery-free peripheral activation.

Availability

ST25TV04K-PE6G3 is available at Aetrix Electronics and suitable for industrial asset tagging, smart packaging authentication, automotive component ID, and reusable logistics pallet applications requiring stable component supply, long-term data integrity, and NFC Forum certification.

Supply support for ST25TV04K-PE6G3 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 ICs, sensors, and secure connectivity solutions for industrial, automotive, and consumer markets.

ST25TV04K-PE6G3 belongs to the ST25TV family of NFC/RFID tag ICs engineered specifically for secure, maintenance-free identification and data storage in battery-free, space-constrained applications - emphasizing robustness, certification compliance, and field-deployable privacy controls.

FAQ

Does ST25TV04K-PE6G3 require external tuning capacitors?

No. The device integrates a precise 28.5 pF internal tuning capacitance, eliminating the need for external capacitors and simplifying antenna matching for ISO/IEC 15693 operation. This reduces bill-of-materials cost and improves layout reliability in compact designs.

How is memory protection implemented across multiple user areas?

Memory is divided into up to four contiguous areas defined by ENDA1–ENDA3 registers. Each area can be independently protected for read and/or write access using one of three 64-bit passwords (PWD_1–PWD_3), with password validation enforced at the RF command level before execution.

What triggers the GPO pin output, and what voltage levels does it support?

GPO asserts on configurable RF events - including field detection, memory write completion, or user-initiated pulse - but only when VDCG (1.65–3.6 V) is applied. It delivers a CMOS-compatible output with rail-to-rail swing referenced to VDCG, enabling direct interfacing with MCU GPIOs or wake-up controllers.

Can the energy harvesting output (V_EH) power external circuitry reliably?

V_EH provides unregulated analog voltage derived from the RF carrier - usable only when field strength exceeds the harvesting threshold. It delivers microwatts sufficient to bias low-leakage comparators or trigger Schmitt-trigger wake-up circuits, but not for sustained digital logic operation without external regulation.