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Home > Products > RF and Wireless > RFID, RF Access, Monitoring ICs

STMicroelectronics ST25TV512-AP6G9

Name: ST25TV512-AP6G9
Brand: STMicroelectronics
SKU: ST25TV512-AP6G9
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: ST25TV512-AP6G9

Manufacturer:: STMicroelectronics

Category:: RFID, RF Access, Monitoring ICs

Package:: Die

Datasheet:: ST25TV512-AP6G9.pdf

Description:: 512-BIT EEPROM TAG IC AT 13.56 M

Quantity:: RFQ Add To RFQ list

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Inventory:3,084

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Product details

Overview

ST25TV512-AP6G9 from STMicroelectronics is an NFC Forum Type 5 contactless RFID tag IC compliant with ISO/IEC 15693, featuring 2-Kbit EEPROM, tamper-detect capability (TD0/TD1), TruST25 digital signature, and EAS functionality. It operates at 13.56 MHz, supports fast read up to 53 Kbit/s, and delivers 60-year data retention with 100 k write cycles - deployed in secure product authentication and anti-counterfeiting systems.

For engineers reviewing the ST25TV512-AP6G9 datasheet, ST25TV512-AP6G9 pinout, ST25TV512-AP6G9 application, or ST25TV512-AP6G9 equivalent, key selection considerations include tamper-loop interface compatibility, encrypted multi-area memory protection (32-bit/64-bit passwords), kill/untraceable mode implementation, and RF tuning capacitance (23 pF / 99.7 pF) for antenna matching.

Technical Context

The ST25TV512-AP6G9 implements a fully autonomous ISO/IEC 15693 RF front-end with integrated demodulator, decoder, and power management circuitry - enabling operation directly from a 13.56 MHz magnetic field without external power. Its tamper-detect loop (TD0/TD1) monitors continuity of an external wire loop and triggers irreversible state changes upon open/short detection.

Memory access is organized in 4-byte blocks across two or three user areas, with configurable read/write protection enforced via encrypted password sessions (PWD_A1/PWD_A2) and system-level configuration locks (PWD_CFG). The TruST25 digital signature is stored in a dedicated 64-bit ROM block and verified during authentication sequences.

Key Specifications

Parameter	Value and Actual Design Meaning
RF Standard	ISO/IEC 15693 & NFC Forum Type 5 - ensures interoperability with commercial NFC readers and smartphones.
Memory Size	2 Kbits EEPROM (512 × 4-byte blocks) - supports firmware metadata, serial numbers, and cryptographic keys in secure tagging.
Data Retention	60 years at 25 °C - guarantees long-term integrity of product identity and calibration data in industrial deployments.
Write Endurance	100,000 cycles per block - enables repeated reprogramming in dynamic supply-chain tracking applications.
Tuning Capacitance	23 pF and 99.7 pF internal options - reduces external component count and simplifies antenna impedance matching.
Operating Temp	−40 °C to +85 °C - qualified for automotive under-hood, industrial equipment, and outdoor asset tagging.
Security Features	Kill mode, untraceable mode, 16-bit event counter with anti-tearing, and TruST25 digital signature - provides hardware-enforced privacy and clone resistance.

Pinout & Package

ST25TV512-AP6G9 is supplied in a 5-pin DFN package (ECOPACK2, RoHS-compliant), with sawn and bumped wafer form. Pin 5 (NC1) is not connected; tamper-detect functionality requires external loop connection between TD0 and TD1.

Pin/Terminal	Circuit Role	Design Meaning
AC0 / AC1	Antenna coil interface	Differential RF input/output - connects directly to printed or wound inductor; no DC bias or external tuning required.
TD0 / TD1	Tamper detect loop	Open/short sensing inputs - detects physical intrusion by monitoring continuity of external wire loop; triggers irreversible security state change.
NC1	No connect	Unused pad - must remain unconnected per ECOPACK2 mechanical specification.

Key Features

Feature	Design Value
Custom Fast Read	53 Kbit/s RF read rate - cuts inventory time by >3× vs standard ISO/IEC 15693 mode, critical for high-throughput logistics scanning.
Multi-Area Memory Protection	Two or three independently password-protected user areas (32-bit or 64-bit encrypted) - enables tiered access control for OEM, service, and end-user data partitions.
Tamper-Detect Hardware	Dedicated TD0/TD1 loop interface with anti-tampering state persistence - prevents unauthorized physical access without triggering detectable failure modes.
TruST25 Digital Signature	Factory-programmed 64-bit cryptographic signature - provides verifiable chip origin for anti-cloning in branded consumables and medical devices.
EAS Capability	Electronic article surveillance flag (256-bit EAS memory) - integrates with retail loss-prevention gateways without additional components.

Applications

Product Authentication

Secure Firmware Update

Use Scenario: Verifying authenticity of high-value medical consumables before use in diagnostic equipment.

IC Role / Device Role / Timing Role: Contactless identity anchor storing TruST25 signature and UID; responds to NFC reader challenge within <100 ms.

Use Value: Prevents counterfeit cartridge insertion by enforcing cryptographic verification prior to device activation.

Use Scenario: Enabling field-upgradable firmware in industrial sensors with secure boot validation.

IC Role / Device Role / Timing Role: Secure nonvolatile storage for public key hash and version metadata; accessed only after successful password session.

Use Value: Ensures firmware integrity by binding update payload to factory-signed certificate stored in protected EEPROM.

Anti-Counterfeiting Labeling

Asset Tracking & Lifecycle Management

Use Scenario: Embedding tamper-evident tags in luxury goods packaging with visible loop wire.

IC Role / Device Role / Timing Role: Tamper-detect endpoint (TD0/TD1) coupled with kill mode - permanently disables tag on package breach.

Use Value: Provides irreversible physical evidence of tampering while blocking further RF communication.

Use Scenario: Tracking maintenance history of aerospace components across decades of service.

IC Role / Device Role / Timing Role: Long-retention EEPROM storing calibration logs, repair timestamps, and operator IDs in 4-byte block format.

Use Value: Maintains auditable lifecycle records with 60-year data retention and 100k-write endurance for repeated updates.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
ST25TV02K-AP6G9	Same die, 2-Kbit memory, identical pinout and tamper-detect interface - differs only in default memory organization (three-area vs two-area config).	Requires explicit option_flag=0 for Kill command; error code behavior varies per command.	Select when needing identical footprint and tamper-detect capability but prefer factory-default three-area memory layout.
NXP NT3H2211W0FHKH	NFC Forum Type 4 (ISO/IEC 14443A), 2-Kbyte EEPROM, no tamper-detect pins, supports NDEF formatting and dynamic lock bits.	Lacks TD0/TD1 interface and TruST25 signature; optimized for smartphone-centric NFC interactions over long-range RFID infrastructure.	Select for consumer-facing NFC experiences (e.g., smart posters) where ISO/IEC 14443A compatibility and NDEF support outweigh tamper detection needs.

Compared with ST25TV02K-AP6G9, the ST25TV512-AP6G9 offers identical hardware but ships with different factory memory mapping; versus NT3H2211, it trades NDEF flexibility for ISO/IEC 15693 range, tamper detection, and cryptographic signature - making it superior for industrial anti-tampering and long-range authentication.

Availability

ST25TV512-AP6G9 is available at Aetrix Electronics and suitable for product authentication, anti-counterfeiting labeling, secure firmware update, and asset lifecycle management requiring stable component supply across automotive, industrial, and medical device programs.

Supply support for ST25TV512-AP6G9 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.

ST25TV series targets secure identification and data integrity in unpowered environments - engineered specifically for tamper-resistant, long-lifecycle, contactless authentication in regulated and high-value applications.

FAQ

What is the function of the TD0 and TD1 pins?

TD0 and TD1 form a dedicated tamper-detect loop interface that monitors continuity of an external wire. An open or short circuit between these pins triggers irreversible security actions - including disabling RF response or entering untraceable mode - and is retained across power cycles. This hardware feature is used in anti-tampering labels and secure medical device cartridges.

How does the TruST25 digital signature work?

The TruST25 digital signature is a factory-programmed 64-bit cryptographic value stored in read-only memory. It is bound to the chip's unique identifier (UID) and verified using public-key cryptography during authentication. Unlike software-based signatures, it cannot be cloned or rewritten, providing hardware-rooted proof of genuine STMicroelectronics silicon in anti-counterfeiting workflows.

Can ST25TV512-AP6G9 be used with standard NFC smartphones?

Yes - ST25TV512-AP6G9 is NFC Forum Type 5 certified and fully compatible with ISO/IEC 15693, meaning it works with all Android smartphones supporting NFC reader mode (including Samsung, Google Pixel, and Xiaomi models). However, unlike Type 4 tags, it does not support NDEF formatting natively and requires custom app logic to parse its block-addressed memory structure.

What is the difference between Kill mode and Untraceable mode?

Kill mode permanently disables all RF communication by cutting internal power routing - the tag becomes inert and invisible to all readers. Untraceable mode retains memory content but masks the UID during inventory, preventing tracking while allowing authenticated access via password. Both modes are triggered by presenting the 4-byte PWD_KILL and require option_flag=0 for Kill command execution.

ST25TV512-AP6G9 Specifications

Product attributes: Attribute value

Manufacturer:: STMicroelectronics

Series:: ST25T

Package/Case:: Die

Packaging:: Bulk

Product Status:: Active

Type:: RFID Transponder

Frequency:: 13.56MHz

Standards:: ISO 15693, NFC

Interface:: -

Voltage - Supply:: -

Operating Temperature:: -40°C ~ 85°C (TA)

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: Wafer

ST25TV512-AP6G9 FAQ

1.How can I place an order for ST25TV512-AP6G9 through Aetrix?

Please submit a Request for Quotation (RFQ) for ST25TV512-AP6G9 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.

2.Are the price and stock information for ST25TV512-AP6G9 reliable?

The price and inventory of ST25TV512-AP6G9 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ST25TV512-AP6G9 is usually 5 days.

3.What payment methods are accepted for ST25TV512-AP6G9?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ST25TV512-AP6G9 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for ST25TV512-AP6G9?

ST25TV512-AP6G9 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your ST25TV512-AP6G9 order is processed, you will receive an email with the shipment details and tracking number.

Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.

5.How can I obtain technical support or documentation for ST25TV512-AP6G9?

For technical support, including ST25TV512-AP6G9 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ST25TV512-AP6G9 requirements.

6.How does Aetrix verify that ST25TV512-AP6G9 is sourced from the original manufacturer or authorized distributors?

All ST25TV512-AP6G9 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that ST25TV512-AP6G9 meets industry standards.

7.What is the process for return or replacement of ST25TV512-AP6G9?

All ST25TV512-AP6G9 units undergo pre-shipment inspection (PSI). If there is an issue with ST25TV512-AP6G9, returns or replacements are accepted under the following conditions:

1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.

2.The issue is reported within 90 days of delivery.

3.The ST25TV512-AP6G9 part is unused and in its original packaging.

Return procedure for ST25TV512-AP6G9:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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