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STMicroelectronics ST25TV512-AD6G9
- Part No.:
- ST25TV512-AD6G9
- Manufacturer:
- STMicroelectronics
- Category:
- RFID, RF Access, Monitoring ICs
- Package:
- Die
- Datasheet:
-
ST25TV512-AD6G9.pdf
- Description:
- 512-BIT EEPROM TAG IC AT 13.56 M
- Quantity:
- Payment:
- Shipping:
Inventory:1,224
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Product details
Overview
ST25TV512-AD6G9 from STMicroelectronics is an NFC Forum Type 5 RFID tag IC compliant with ISO/IEC 15693, featuring 2-Kbit EEPROM, tamper-detect capability, TruST25 digital signature, and dual-mode privacy protection (Kill and Untraceable modes). It operates contactlessly 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-AD6G9 datasheet, ST25TV512-AD6G9 pinout, ST25TV512-AD6G9 application, or ST25TV512-AD6G9 equivalent, key selection criteria include RF interface compatibility with ISO/IEC 15693 Mode 1, encrypted password-based memory partitioning (two or three user areas), tamper-loop detection via TD0/TD1, and EAS-enabled electronic article surveillance integration.
Technical Context
The ST25TV512-AD6G9 implements a fully autonomous RF-powered architecture with no external power supply required. Its RF front-end supports all ISO/IEC 15693 subcarrier modes (1-of-4, 1-of-256), coding schemes (Manchester, BPSK), and data rates (26.48 kbit/s, 53 kbit/s), including proprietary Fast Read commands. The integrated tuning capacitance (23 pF / 99.7 pF) enables direct coil matching without external capacitors.
Memory access is strictly block-oriented (4-byte blocks), with dedicated configuration registers for area protection (A1SS/A2SS), tamper status (TAMPER_DETECT), counter control (CNT_CFG/CNT_VAL), and EAS security (EAS_SEC). Security sessions are managed via Present Password (B3h) and Write Password (B1h) commands, enforcing strict separation between user-area and configuration-level access rights.
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 bytes), organized as 128 × 4-byte blocks - supports structured data storage for UID, signatures, and application-specific payloads. |
| Data Retention | 60 years at 25 °C - guarantees long-term integrity of cryptographic keys and device identity data without refresh. |
| Write Endurance | 100,000 write cycles per block - enables repeated reprogramming in field-deployed anti-tampering or firmware update scenarios. |
| RF Data Rate | Up to 53 Kbit/s (Fast Read mode) - reduces tag interrogation time in high-throughput logistics or retail scanning environments. |
| Tamper Detect | Dual-pin loop (TD0/TD1) with open/short detection - triggers irreversible state change upon physical intrusion, supporting forensic traceability. |
| Operating Temp | –40 °C to +85 °C - validated for automotive under-hood, industrial equipment, and outdoor asset tagging applications. |
Pinout & Package
ST25TV512-AD6G9 is supplied in a 5-pin DFN package (ECOPACK2, RoHS-compliant), optimized for direct antenna coil integration and tamper-loop routing. The die features sawn-and-bumped wafer construction with bottom-side pad layout for flip-chip mounting.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| AC0 / AC1 | Antenna coil interface | Differential RF input/output pair - connects directly to printed or wire-wound 13.56 MHz antenna; no DC bias or external tuning components required. |
| TD0 / TD1 | Tamper detect loop | Open-drain bidirectional loop monitor - detects physical breach by measuring continuity between pins; initiates irreversible tamper flag in system configuration area. |
| NC1 | No-connect terminal | Unbonded pad - must remain unconnected in PCB layout to prevent parasitic coupling or ESD path formation. |
Key Features
| Feature | Design Value |
|---|---|
| TruST25 digital signature | Factory-programmed 256-bit cryptographic signature stored in system configuration area - enables hardware-rooted origin verification and clone detection in supply chain audits. |
| Three-area memory protection | Configurable partitioning into Area 0 (always readable), Area 1, and Area 2 - each independently protected by 32-bit encrypted passwords for granular access control in multi-tier applications. |
| Kill & Untraceable modes | Two distinct privacy states: Kill mode permanently disables RF response; Untraceable mode suppresses UID during inventory - both require valid PWD_KILL to activate. |
| EAS capability | Integrated 256-bit EAS register with configurable lock - allows seamless integration into retail loss-prevention systems without external circuitry. |
| 16-bit event counter | Non-volatile counter with anti-tearing logic - tracks tag interactions (e.g., authentication attempts) for usage analytics and anomaly detection in critical infrastructure. |
Applications
| Product Authentication | Secure Firmware Update |
|---|---|
|
Use Scenario: High-value medical devices or aerospace components require verifiable origin and tamper history before commissioning. IC Role / Device Role / Timing Role: ST25TV512-AD6G9 serves as a physically bound identity anchor, storing TruST25 signature and tamper flags accessible only after authenticated RF handshake. Use Value: Prevents counterfeit substitution by enabling OEMs to cryptographically validate chip authenticity and detect unauthorized physical access prior to deployment. |
Use Scenario: Industrial PLCs receive over-the-air firmware patches requiring integrity verification and rollback protection. IC Role / Device Role / Timing Role: Acts as secure boot credential store - holds signed firmware hash and version counter, validated before loading new code into MCU flash. Use Value: Ensures only authorized, unaltered firmware executes by binding cryptographic signatures to immutable EEPROM and tamper-evident state. |
| Electronic Article Surveillance | Anti-Counterfeiting Labeling |
|
Use Scenario: Luxury goods retailers deploy EAS gates at exits to detect unpaid items without line-of-sight scanning. IC Role / Device Role / Timing Role: Provides programmable EAS register (256 bits) that toggles alarm state when activated by gate-field modulation. Use Value: Eliminates need for separate EAS hard tags - reduces label cost and complexity while maintaining full compatibility with existing retail security infrastructure. |
Use Scenario: Pharmaceutical packaging requires serialized, non-clonable identifiers visible to inspectors and consumers via NFC-enabled smartphones. IC Role / Device Role / Timing Role: Stores unique UID, batch number, and expiration date in protected user memory; exposes only authenticated data via NFC reader. Use Value: Enables real-time verification of drug provenance and expiry using consumer-grade phones - deters diversion and falsification across global distribution networks. |
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-AD6G9 | Same die, identical pinout and memory map, but factory-configured for two-area memory (Area 0 + Area 1) instead of three-area (Area 0 + Area 1 + Area 2). | Preferred where simplified memory partitioning suffices and 32-bit password for single user area meets security requirements. | Select ST25TV02K-AD6G9 when three-area granularity is unnecessary and lower memory configuration overhead is prioritized. |
| NXP NT3H2111W0FHKH | Supports NFC Forum Type 4 (ISO/IEC 14443-A) instead of Type 5; lacks tamper detect, TruST25, and Kill/Untraceable modes; offers 2-Kbyte EEPROM with different command set. | Suitable for smartphone-centric access control or transit ticketing where ISO/IEC 14443 interoperability outweighs anti-tamper needs. | Choose NT3H2111 only if ISO/IEC 14443-A compatibility is mandatory and tamper evidence is not required. |
Compared with ST25TV02K-AD6G9, the ST25TV512-AD6G9 enables finer-grained access control via third memory area and independent 32-bit passwords; versus NT3H2111, it trades ISO/IEC 14443-A support for stronger physical security primitives essential in anti-counterfeiting and high-assurance authentication.
Availability
ST25TV512-AD6G9 is available at Aetrix Electronics and suitable for product authentication, secure firmware update, electronic article surveillance, and anti-counterfeiting labeling requiring stable component supply across automotive, industrial, and healthcare sectors.
Supply support for ST25TV512-AD6G9 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, sensors, power management ICs, and secure connectivity solutions for industrial, automotive, and consumer markets.
The ST25TV family targets secure identification and data integrity in contactless systems, with ST25TV512-AD6G9 specifically engineered to deliver hardware-enforced privacy, tamper evidence, and cryptographic trust anchors for mission-critical traceability applications.
FAQ
What is the function of the TD0 and TD1 pins on ST25TV512-AD6G9?
TD0 and TD1 form a dedicated tamper-detect loop interface. When connected as a closed wire loop, the IC continuously monitors continuity; an open or short circuit triggers a persistent tamper flag in the system configuration area (register address 05h). This feature is hardware-enforced and irreversible, providing physical intrusion evidence for forensic audit trails in high-security applications.
How does the Kill mode differ from Untraceable mode in ST25TV512-AD6G9?
Kill mode permanently disables all RF communication by setting the KILL_MUTE bit - the tag becomes mute and unresponsive to any command. Untraceable mode suppresses UID transmission during inventory while retaining full read/write functionality for authenticated sessions. Both require presentation of the 32-bit PWD_KILL password, but Kill mode is irreversible whereas Untraceable mode can be exited via subsequent command.
Can ST25TV512-AD6G9 operate without external tuning capacitors?
Yes. The IC integrates two selectable internal tuning capacitances (23 pF and 99.7 pF) controlled by configuration bits, enabling direct connection to a 13.56 MHz antenna coil without external capacitors. This simplifies PCB layout, reduces bill-of-materials cost, and improves RF matching stability across temperature and manufacturing variance - verified per DS12074 Rev 12 test conditions.
What memory protection options are available for user data on ST25TV512-AD6G9?
User memory supports three-area partitioning (Area 0, Area 1, Area 2), each independently protected by 32-bit encrypted passwords. Area 0 is always readable but can be write-locked. Areas 1 and 2 support four access policies (read-only, write-only, read+write with session, read-only with session) via AiSS registers. Additionally, individual 4-byte blocks can be permanently locked using the Lock Single Block command - enforced at hardware level with no software override.
ST25TV512-AD6G9 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-AD6G9 FAQ
1.How can I place an order for ST25TV512-AD6G9 through Aetrix?
Please submit a Request for Quotation (RFQ) for ST25TV512-AD6G9 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-AD6G9 reliable?
The price and inventory of ST25TV512-AD6G9 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ST25TV512-AD6G9 is usually 5 days.
3.What payment methods are accepted for ST25TV512-AD6G9?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ST25TV512-AD6G9 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ST25TV512-AD6G9?
ST25TV512-AD6G9 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ST25TV512-AD6G9 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-AD6G9?
For technical support, including ST25TV512-AD6G9 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ST25TV512-AD6G9 requirements.
6.How does Aetrix verify that ST25TV512-AD6G9 is sourced from the original manufacturer or authorized distributors?
All ST25TV512-AD6G9 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-AD6G9 meets industry standards.
7.What is the process for return or replacement of ST25TV512-AD6G9?
All ST25TV512-AD6G9 units undergo pre-shipment inspection (PSI). If there is an issue with ST25TV512-AD6G9, 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-AD6G9 part is unused and in its original packaging.
Return procedure for ST25TV512-AD6G9:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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