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STMicroelectronics ST25TA64K-AB6B3
- Part No.:
- ST25TA64K-AB6B3
- Manufacturer:
- STMicroelectronics
- Category:
- RFID, RF Access, Monitoring ICs
- Package:
- Die
- Datasheet:
-
ST25TA64K-AB6B3.pdf
- Description:
- IC RFID TRANSP 13.56MHZ WAFER
- Quantity:
- Payment:
- Shipping:
Inventory:2,377
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Product details
Overview
ST25TA64K-AB6B3 from STMicroelectronics is an NFC Forum Type 4 Tag IC embedding 64-kbit EEPROM, compliant with ISO/IEC 14443 Type A at 106 Kbps, featuring 25 pF internal tuning capacitance, 7-byte UID, and 128-bit password protection. It operates passively from 13.56 MHz RF fields and supports NDEF data structure for secure, standardized data exchange in contactless applications such as smart posters and product authentication.
For engineers reviewing the ST25TA64K-AB6B3 datasheet, ST25TA64K-AB6B3 pinout, ST25TA64K-AB6B3 application, or ST25TA64K-AB6B3 equivalent, key selection criteria include NFC Forum Type 4 compliance, 246-byte single-command read/write capability, 200-year data retention, 1-million-cycle endurance, and dual 128-bit password enforcement for NDEF file access control.
Technical Context
The ST25TA64K-AB6B3 implements a fully autonomous RF interface based on ISO/IEC 14443 Type A Layer 1–3 and NFC Forum Type 4 Tag protocol stack, supporting I-Block, R-Block, and S-Block frame formats with CRC validation. Its digital unit handles APDU parsing, NDEF message framing, and CC/NDEF/System file state management without external controller intervention.
Memory access is governed by configurable read/write access rights stored in the Capability Container (CC) file, with permanent locking options and password-verified transitions between unlocked, locked, and read-only states. The System file contains ST-proprietary configuration parameters including delivery state and file control TLVs.
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 - fixed low-speed mode optimized for robustness and power harvesting in passive tag operation. |
| Memory Size | 64-kbit (8-Kbyte) EEPROM - provides sufficient space for multi-record NDEF messages, firmware metadata, or serialized identifiers. |
| Single-Command Transfer | Up to 246 bytes read/write - reduces transaction count and improves throughput for large NDEF payloads. |
| Data Retention | 200 years - guarantees long-term integrity of stored credentials, calibration data, or device history without refresh. |
| Endurance | 1 million erase-write cycles - supports frequent field updates in logistics tracking or reconfigurable smart labels. |
| UID Length | 7-byte unique identifier - enables deterministic device addressing and anti-cloning security in asset management systems. |
| Password Protection | Two independent 128-bit passwords - enforces granular access control: one for read-locked NDEF files, another for write-locked or access-right modification. |
Pinout & Package
ST25TA64K-AB6B3 is offered in a wafer-level chip-scale package (WLCSP) with two antenna terminals only - no conventional signal pins. The device interfaces exclusively via AC0 and AC1, which connect directly to an external printed loop antenna. No DC power supply, ground, or digital I/O pins are present; all operation is RF-coupled and energy-harvested.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| AC0 / AC1 | RF Antenna Interface | Differential connection points for external 13.56 MHz LC tank; internal 25 pF tuning capacitance simplifies matching and eliminates discrete capacitors. |
Key Features
| Feature | Design Value |
|---|---|
| NDEF Tag Application Support | Fully compliant implementation per NFC Forum Type 4 specification, enabling plug-and-play integration with Android/iOS NDEF readers without custom driver development. |
| CC File Programmability | Read/write access rights and NDEF file size limits are modifiable via standardized APDU commands - allows runtime policy updates without firmware changes. |
| Permanent Locking | EnablePermanentState command irreversibly locks read/write access rights - prevents tampering after commissioning in high-security use cases like medical device ID or firmware signing keys. |
| Extended Read Capability | ExtendedReadBinary command bypasses NDEF Message Length boundary checks - enables raw memory inspection for debugging or legacy data migration. |
| System File Visibility | ST-proprietary System file exposes delivery state and configuration flags - provides traceability for manufacturing programming verification and lifecycle stage identification. |
Applications
| Smart Poster Deployment | Product Authentication |
|---|---|
|
Use Scenario: NFC-enabled printed posters in retail or transit environments deliver URLs, coupons, or multimedia content when tapped by smartphones. IC Role / Device Role / Timing Role: Passive NFC tag IC storing and serving standardized NDEF records; no timing or clock generation required - powered and clocked entirely by reader field. Use Value: 246-byte single-read capability minimizes tap duration; 200-year data retention ensures multi-year poster validity without maintenance. |
Use Scenario: Embedded in packaging or PCBs of premium electronics to verify genuine components during assembly or end-user setup. IC Role / Device Role / Timing Role: Secure identity anchor with cryptographically protected NDEF payload; UID + password-enforced access prevents cloning or unauthorized reprogramming. Use Value: 128-bit dual-password enforcement and permanent locking enable hardware-rooted trust chains compatible with OEM anti-counterfeiting protocols. |
| Industrial Asset Tagging | Medical Device Calibration Storage |
|
Use Scenario: Durable metal-mount tags on factory tools or test equipment store service history, calibration dates, and operator logs. IC Role / Device Role / Timing Role: Robust EEPROM-based data logger accessible via handheld NFC readers; operates reliably in EMI-rich industrial settings due to ISO/IEC 14443 Type A immunity. Use Value: 1-million-cycle endurance supports daily logging over 10+ years; 7-byte UID enables unambiguous asset tracking across ERP and CMMS platforms. |
Use Scenario: Sterilizable tags affixed to surgical instruments or diagnostic sensors retain calibration coefficients, firmware version, and usage counters. IC Role / Device Role / Timing Role: Tamper-evident nonvolatile memory element storing critical safety-critical parameters; no battery or external power required during autoclave cycles. Use Value: 200-year data retention guarantees parameter integrity across instrument lifetime; password-protected writes prevent accidental or malicious calibration overwrite. |
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, integrated 13.56 MHz antenna, no external coil required; lacks 128-bit dual-password support. | Better suited for compact consumer devices where board space is constrained but advanced security is not mandatory. | Select when antenna integration and simplified layout outweigh need for high-end access control. |
| ST25DV64KC-IB6T | I²C interface added alongside NFC; 64-Kbit EEPROM; supports dynamic NDEF updates via microcontroller, not reader-only. | Enables bidirectional data flow: NFC read + MCU-initiated write - ideal for edge-configurable IoT nodes. | Choose when local host processor must modify NDEF content without reader interaction. |
Compared with NT3H2111W0FHKH and ST25DV64KC-IB6T, the ST25TA64K-AB6B3 delivers superior security isolation (no I²C attack surface), higher endurance (1M vs 100k cycles), and stricter NFC Forum Type 4 conformance - making it optimal for unattended, high-trust tagging where reader-only access and long-term reliability are primary requirements.
Availability
ST25TA64K-AB6B3 is available at Aetrix Electronics and suitable for smart poster deployment, product authentication, industrial asset tagging, and medical device calibration storage requiring stable component supply across multi-year production cycles.
Supply support for ST25TA64K-AB6B3 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, specializing in intelligent power, sensing, and connectivity solutions for industrial, automotive, and consumer markets.
The ST25 NFC tag IC product line targets secure, ultra-low-power contactless identification and data exchange - designed specifically for cost-sensitive, maintenance-free applications where batteryless operation and NFC Forum certification are mandatory.
FAQ
Does ST25TA64K-AB6B3 require an external antenna?
Yes - ST25TA64K-AB6B3 has no integrated antenna and must be connected to an external printed loop antenna via AC0 and AC1 terminals. Its 25 pF internal tuning capacitance simplifies impedance matching to standard 13.56 MHz antenna designs, eliminating the need for discrete capacitors in most layouts.
Can the UID be changed or reprogrammed?
No - the 7-byte UID is factory-programmed, laser-fused, and permanently immutable. It serves as a cryptographic root of trust and cannot be altered, overwritten, or duplicated, ensuring device uniqueness and resistance to cloning attacks.
What happens when the NDEF file is permanently locked?
After executing EnablePermanentState, the read/write access rights become irreversible: no subsequent command - including password verification - can unlock or modify them. This state is intended for final commissioning in security-critical deployments where tamper-proof configuration is required.
Is ST25TA64K-AB6B3 compatible with Apple devices?
Yes - it complies fully with NFC Forum Type 4 Tag specifications and ISO/IEC 14443 Type A, enabling native NDEF reading on iOS 13+ devices using Core NFC APIs. No special firmware or MFi certification is needed, as the tag operates in standard reader/writer mode supported by Apple's NFC stack.
ST25TA64K-AB6B3 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Series:
- ST25T
- Package/Case:
- Die
- Packaging:
- Bulk
- Product Status:
- Obsolete
- Type:
- RFID Transponder
- Frequency:
- 13.56MHz
- Standards:
- ISO 14443
- Interface:
- -
- Voltage - Supply:
- -
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- Wafer
ST25TA64K-AB6B3 FAQ
1.How can I place an order for ST25TA64K-AB6B3 through Aetrix?
Please submit a Request for Quotation (RFQ) for ST25TA64K-AB6B3 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-AB6B3 reliable?
The price and inventory of ST25TA64K-AB6B3 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ST25TA64K-AB6B3 is usually 5 days.
3.What payment methods are accepted for ST25TA64K-AB6B3?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ST25TA64K-AB6B3 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ST25TA64K-AB6B3?
ST25TA64K-AB6B3 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ST25TA64K-AB6B3 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-AB6B3?
For technical support, including ST25TA64K-AB6B3 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ST25TA64K-AB6B3 requirements.
6.How does Aetrix verify that ST25TA64K-AB6B3 is sourced from the original manufacturer or authorized distributors?
All ST25TA64K-AB6B3 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-AB6B3 meets industry standards.
7.What is the process for return or replacement of ST25TA64K-AB6B3?
All ST25TA64K-AB6B3 units undergo pre-shipment inspection (PSI). If there is an issue with ST25TA64K-AB6B3, 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-AB6B3 part is unused and in its original packaging.
Return procedure for ST25TA64K-AB6B3:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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