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STMicroelectronics ST25TA64K-AB6G3
- Part No.:
- ST25TA64K-AB6G3
- Manufacturer:
- STMicroelectronics
- Category:
- RFID, RF Access, Monitoring ICs
- Package:
- Die
- Datasheet:
-
ST25TA64K-AB6G3.pdf
- Description:
- IC RFID TRANSP 13.56MHZ WAFER
- Quantity:
- Payment:
- Shipping:
Inventory:4,766
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Product details
Overview
ST25TA64K-AB6G3 from STMicroelectronics is an NFC Forum Type 4 Tag IC with integrated 64-kbit EEPROM, compliant with ISO/IEC 14443 Type A at 106 Kbps, featuring 7-byte UID, 128-bit password protection, and 200-year data retention. It operates passively via RF field coupling and supports NDEF message storage for secure, contactless data exchange in smart labels and IoT edge devices.
For engineers reviewing the ST25TA64K-AB6G3 datasheet, ST25TA64K-AB6G3 pinout, ST25TA64K-AB6G3 application, or ST25TA64K-AB6G3 equivalent, key selection criteria include NFC Forum Type 4 compliance, single-command 246-byte read/write capability, permanent lock state support, and CC/NDEF/System file structure alignment with NFC ecosystem interoperability requirements.
Technical Context
The ST25TA64K-AB6G3 implements a fully autonomous RF interface based on ISO/IEC 14443 Type A physical layer with internal 25 pF tuning capacitance, eliminating external matching components. Its digital unit executes NFC Forum Type 4 Tag protocol stack-including I-Block, R-Block, and S-Block frame handling-and supports both standard and ST-proprietary commands (e.g., EnablePermanentState, ExtendedReadBinary).
Memory management is structured around three fixed files: a read-only Capability Container (CC) file defining access rights and max transfer sizes, a user-writable NDEF file with 2-byte length header and up to 8-Kbyte payload, and an ST-proprietary System file storing device configuration. Access control enforces 128-bit read/write passwords and supports permanent locking of NDEF file segments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| RF Standard | NFC Forum Type 4 Tag + ISO/IEC 14443 Type A - ensures interoperability with all certified NFC readers and smartphones. |
| Data Rate | 106 Kbps - defines maximum raw communication speed; sufficient for NDEF message exchange in consumer and industrial tagging. |
| Memory Size | 64-kbit (8-Kbyte) EEPROM - provides ample space for multi-record NDEF messages including URIs, text, smart posters, and configuration data. |
| Read/Write Block Size | Up to 246 bytes per command - reduces transaction count for large payloads and improves host-side throughput efficiency. |
| Data Retention | 200 years - guarantees long-term integrity of stored credentials, calibration data, or firmware metadata without refresh. |
| Endurance | 1 million erase-write cycles - supports frequent reprogramming in dynamic asset tracking or field-updatable label applications. |
| UID Length | 7-byte unique identifier - enables deterministic device addressing and anti-cloning security in authentication workflows. |
| Password Protection | 128-bit read/write passwords - provides cryptographic-grade access control for sensitive NDEF content without external crypto engine. |
Pinout & Package
ST25TA64K-AB6G3 uses a wafer-level chip-scale package (WLCSP) with two antenna terminals only - no conventional signal pins. The device interfaces exclusively through AC0 and AC1, which connect directly to an external loop antenna coil. No power supply, ground, or digital I/O pins are present; operation is fully passive and RF-powered.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| AC0 / AC1 | Antenna coil interface | Differential RF input/output nodes tuned to 13.56 MHz; require external LC matching network for optimal power harvesting and communication range. |
Key Features
| Feature | Design Value |
|---|---|
| NFC Forum Type 4 compliance | Fully implements NFC Forum Digital Protocol Technical Specification v2.0, enabling plug-and-play integration with Android Beam, iOS CoreNFC, and enterprise middleware. |
| CC/NDEF/System file architecture | Predefined memory layout with standardized Capability Container simplifies NDEF parser implementation and eliminates custom driver development. |
| Permanent lock state support | EnablePermanentState command allows irreversible write-protection of NDEF segments-critical for firmware version stamps or regulatory certificates. |
| Extended read capability | ExtendedReadBinary command bypasses NDEF message length constraints, enabling direct access to raw EEPROM contents for diagnostics or recovery. |
| Internal tuning capacitance | 25 pF integrated capacitance reduces bill-of-materials and PCB footprint by minimizing required external matching components. |
Applications
| Smart Retail Labels | Industrial Asset Tags |
|---|---|
|
Use Scenario: Dynamic price display and product authentication on shelf tags powered by NFC-enabled smartphones or kiosks. IC Role / Device Role / Timing Role: Passive NFC tag IC storing encrypted NDEF records containing EPC, batch ID, and tamper-evident hash. Use Value: Enables real-time price updates and anti-counterfeit verification without battery or wired infrastructure-reducing OPEX and improving shelf accuracy. |
Use Scenario: Maintenance log storage on high-value machinery using handheld NFC readers during scheduled servicing. IC Role / Device Role / Timing Role: Secure, field-programmable memory node holding service history, calibration offsets, and firmware revision metadata. Use Value: Eliminates paper-based logs and manual database entry; 200-year retention ensures traceability across equipment lifecycle. |
| Medical Device Identification | Connected Packaging |
|
Use Scenario: Sterile instrument tracking where NFC scan confirms UDI compliance and sterilization cycle count before use. IC Role / Device Role / Timing Role: Tamper-resistant NDEF container with 128-bit password-protected read access for regulatory audit trails. Use Value: Meets FDA 21 CFR Part 11 requirements for electronic records; permanent lock prevents unauthorized modification of critical identifiers. |
Use Scenario: Consumer engagement via smartphone tap on pharmaceutical or cosmetic packaging to verify authenticity and access usage instructions. IC Role / Device Role / Timing Role: Embedded Type 4 Tag IC hosting URI-type NDEF record linking to brand portal with serial-number-bound validation. Use Value: Leverages native OS NFC stacks-no app installation required-while supporting secure, updatable content without cloud dependency. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar NFC Type 4 tag applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| NT3H2111W0FHKH | 1-Kbyte EEPROM, no permanent lock command, supports Fast Read (up to 424 Kbps), integrated 32-bit UID only. | Better suited for high-throughput consumer promotions with short-lived content; lacks long-term write-lock assurance. | Select when cost sensitivity outweighs endurance and permanent protection needs. |
| ST25DV64KC-IE6T | I²C + RF dual-interface, 64-Kbit EEPROM, hardware write-protect pin, 10-year data retention (vs 200 years). | Required where local microcontroller access to same memory is needed alongside NFC reads-e.g., sensor fusion gateways. | Choose only if dual-interface coordination justifies reduced retention and added complexity. |
Compared with NT3H2111W0FHKH and ST25DV64KC-IE6T, the ST25TA64K-AB6G3 uniquely balances high endurance, ultra-long data retention, and irreversible NDEF locking-making it optimal for unattended, long-lifecycle, security-critical tagging where RF-only access suffices.
Availability
ST25TA64K-AB6G3 is available at Aetrix Electronics and suitable for smart retail labels, industrial asset tags, medical device identification, and connected packaging requiring stable component supply and full NFC Forum Type 4 compliance.
Supply support for ST25TA64K-AB6G3 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 smart power solutions for industrial, automotive, and consumer markets.
The ST25 family targets secure, battery-free NFC applications-designed specifically for robust, standards-compliant contactless data exchange in harsh environments and regulated industries.
FAQ
Does ST25TA64K-AB6G3 require an external power supply?
No. The ST25TA64K-AB6G3 is a fully passive device powered solely by the 13.56 MHz RF field from an NFC reader or smartphone. It contains no VDD/VSS pins and draws energy directly from the antenna coil via electromagnetic induction-enabling maintenance-free, zero-power operation in sealed or disposable applications.
Can the 7-byte UID be modified or cloned?
No. The 7-byte UID is factory-programmed, laser-fused, and permanently immutable. It cannot be overwritten, erased, or emulated. This ensures device-level uniqueness for anti-counterfeiting, secure pairing, and regulatory traceability-meeting NFC Forum and ISO/IEC 14443 requirements for genuine identifier binding.
What happens after issuing the EnablePermanentState command?
Once EnablePermanentState is executed, the selected NDEF file segment becomes irreversibly write-locked. No subsequent command-including password verification-can restore write access. This state persists across power cycles and RF sessions, providing hardware-enforced immutability for firmware signatures, calibration constants, or compliance records.
Is antenna design guidance available for ST25TA64K-AB6G3?
Yes. STMicroelectronics provides AN4907 ("Antenna design guide for ST25 NFC tags") detailing coil geometry, impedance matching, and near-field optimization for ST25TA64K-AB6G3. Recommended layouts include 4–6 turn rectangular loops (≈50–70 mm² area) with 25 pF internal capacitance yielding typical read ranges of 40–60 mm with Class B+ readers.
ST25TA64K-AB6G3 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 14443, NFC
- Interface:
- -
- Voltage - Supply:
- -
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- Wafer
ST25TA64K-AB6G3 FAQ
1.How can I place an order for ST25TA64K-AB6G3 through Aetrix?
Please submit a Request for Quotation (RFQ) for ST25TA64K-AB6G3 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 ST25TA64K-AB6G3 reliable?
The price and inventory of ST25TA64K-AB6G3 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ST25TA64K-AB6G3 is usually 5 days.
3.What payment methods are accepted for ST25TA64K-AB6G3?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ST25TA64K-AB6G3 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ST25TA64K-AB6G3?
ST25TA64K-AB6G3 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ST25TA64K-AB6G3 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 ST25TA64K-AB6G3?
For technical support, including ST25TA64K-AB6G3 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ST25TA64K-AB6G3 requirements.
6.How does Aetrix verify that ST25TA64K-AB6G3 is sourced from the original manufacturer or authorized distributors?
All ST25TA64K-AB6G3 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 ST25TA64K-AB6G3 meets industry standards.
7.What is the process for return or replacement of ST25TA64K-AB6G3?
All ST25TA64K-AB6G3 units undergo pre-shipment inspection (PSI). If there is an issue with ST25TA64K-AB6G3, 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 ST25TA64K-AB6G3 part is unused and in its original packaging.
Return procedure for ST25TA64K-AB6G3:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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