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STMicroelectronics ST25TA02KB-DC6H5
- Part No.:
- ST25TA02KB-DC6H5
- Manufacturer:
- STMicroelectronics
- Category:
- RFID, RF Access, Monitoring ICs
- Package:
- 5-UFDFN
- Datasheet:
-
ST25TA02KB-DC6H5.pdf
- Description:
- IC RFID TRANSP 13.56MHZ UFDFPN5
- Quantity:
- Payment:
- Shipping:
Inventory:6,708
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Product details
Overview
ST25TA02KB-DC6H5 from STMicroelectronics is an NFC Forum Type 4 Tag IC compliant with ISO/IEC 14443 Type A, featuring 2-Kbit EEPROM (256-byte user memory), 7-byte UID, 128-bit password protection, and TruST25™ digital signature for anti-cloning. It operates contactlessly at 13.56 MHz with 106 kbps data rate and integrates 50 pF internal tuning capacitance - deployed in smart labels, product authentication tags, and NFC-enabled industrial asset tracking.
For engineers reviewing the ST25TA02KB-DC6H5 datasheet, ST25TA02KB-DC6H5 pinout, ST25TA02KB-DC6H5 application, or ST25TA02KB-DC6H5 equivalent, key selection criteria include NFC Type 4 compliance, NDEF file support, GPO configurability (open-drain variant), 20-bit anti-tearing event counter, and ECOPACK®2 UFDFPN5 packaging for space-constrained PCBs.
Technical Context
The ST25TA02KB-DC6H5 implements a fully autonomous RF-powered tag architecture with analog front-end tuned to 13.56 MHz via integrated 50 pF capacitance and external antenna coil (AC0/AC1). Its digital unit enforces NFC Forum Type 4 Tag command set compliance, including RATS, PPS, ReadBinary, WriteBinary, and Verify commands.
Memory management follows NFC Forum-defined NDEF structure: Capability Container (CC) file (15 bytes, read-only), NDEF file (max 256 bytes), and proprietary System file containing UID, GPO config, event counter, and IC reference code (0xE2). Password-based access control uses two independent 128-bit keys for read/write protection, with permanent FORBIDDEN states enforceable via CCWR/CCRD byte writes.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| NFC Compliance | NFC Forum Type 4 Tag certified; ISO/IEC 14443 Type A protocol - ensures interoperability with all standard NFC readers and smartphones. |
| Memory Capacity | 256-byte (2-Kbit) EEPROM with NDEF file structure - supports full NDEF message storage including URI, text, or smart poster records. |
| Data Retention | 200 years at 25°C - guarantees long-term data integrity in passive, unpowered deployments like product labels or medical device tags. |
| Endurance | 1 million erase-write cycles - enables frequent reprogramming in dynamic use cases such as reusable logistics tags or firmware update tokens. |
| UID Length | 7-byte unique identifier - provides cryptographically strong device-level identity for secure authentication and traceability systems. |
| GPO Type | Open-drain output (ST25TA02KB-D variant) - requires external pull-up ≥4.7 kΩ; enables zero-DC-consumption interrupt signaling to host microcontrollers. |
| TruST25™ Signature | Hardware-generated digital signature - verifies chip origin and prevents counterfeiting in high-value supply chain applications. |
| Package | UFDFPN5 (1.7 × 1.4 mm, 0.5 mm pitch) - ultra-thin, footprint-optimized for embedding in thin plastic cards, flexible labels, or compact IoT enclosures. |
Pinout & Package
ST25TA02KB-DC6H5 is housed in a 5-pin UFDFPN5 package (1.7 × 1.4 mm, 0.5 mm pitch), optimized for low-profile NFC tag integration. Pin 1 is identified by marking 'A' on top-side silkscreen; bottom-side pads are exposed for thermal and electrical connection.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| AC0 / AC1 | Antenna coil interface | Differential RF input pair - connects directly to printed or wound antenna; no DC bias or external components permitted. |
| VSS | Ground reference | Common ground for RF analog section and GPO driver - must be connected for stable operation and noise immunity. |
| GPO | Configurable general-purpose output | Open-drain output (ST25TA02KB-D) - asserts active-low signal during RF session, WIP, MIP, or field detection events. |
Key Features
| Feature | Design Value |
|---|---|
| TruST25™ digital signature | Hardware-enforced cryptographic proof of chip authenticity - blocks cloning in brand protection and pharmaceutical serialization. |
| 20-bit anti-tearing event counter | Tracks NDEF read/write operations with power-loss resilience - enables usage auditing without risk of counter corruption during RF interruption. |
| 128-bit dual-password protection | Independent read/write passwords with three-tier access modes (UNPROTECTED/PROTECTED/FORBIDDEN) - supports role-based access in multi-user systems. |
| Chaining capability | Supports >256-byte NDEF messages via segmented ReadBinary/WriteBinary - essential for firmware payloads or extended configuration data. |
| Internal 50 pF tuning capacitance | Reduces external component count and PCB area - simplifies antenna matching for cost-sensitive consumer electronics and disposable tags. |
Applications
| Product Authentication | Smart Packaging |
|---|---|
|
Use Scenario: Embedded in luxury goods packaging or pharmaceutical blister packs to verify genuine origin during retail scan or pharmacy verification. IC Role / Device Role / Timing Role: Passive NFC tag providing cryptographically signed UID and TruST25™ challenge-response handshake upon reader interrogation. Use Value: Prevents counterfeit distribution by enabling real-time cloud-based validation using the 7-byte UID and hardware signature - no battery or MCU required. |
Use Scenario: Integrated into food or cosmetic packaging to deliver ingredient transparency, batch traceability, and recycling instructions via smartphone tap. IC Role / Device Role / Timing Role: NDEF-compliant memory storing URI and plain-text data; responds within 106 kbps RF link timing constraints. Use Value: Enables dynamic content updates post-manufacturing via field-programmable 256-byte EEPROM - eliminates need for pre-printed static QR codes. |
| Industrial Asset Tagging | NFC-Enabled Tool Tracking |
|
Use Scenario: Mounted on factory equipment or calibration tools to log maintenance history, firmware version, and calibration expiry dates. IC Role / Device Role / Timing Role: Secure EEPROM storage with 1M-cycle endurance and 200-year data retention - survives repeated read/write in harsh environments. Use Value: Eliminates paper logs and manual database entry by allowing maintenance tablets to read/write service records directly to the tag's NDEF file. |
Use Scenario: Embedded in hand tools (e.g., torque wrenches, multimeters) to track usage count, calibration status, and operator assignment. IC Role / Device Role / Timing Role: GPO-driven interrupt output signals tool activation to paired microcontroller - triggers logging on first RF field detection. Use Value: Enables automated tool checkout/inventory via open-drain GPO pulse synchronized to RF session start - no separate power rail needed. |
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 |
|---|---|---|---|
| ST25TA02KB-D | Same die, identical pinout and memory spec; differs only in marking and tape/reel packaging (DC6H5 = wafer-level, D = tape-and-reel). | No functional difference - both support open-drain GPO, same UID format (0x02F3 prefix), and identical TruST25™ implementation. | Select ST25TA02KB-D for automated SMT assembly; ST25TA02KB-DC6H5 suits wafer-level integration or custom substrate mounting. |
| NT3H2111W0FHKH | 1-Kbit NDEF memory, no GPO, no TruST25™, but includes I²C interface for hybrid wired/wireless use. | Lacks anti-cloning signature and event counter; targets cost-sensitive consumer NFC tags where security is secondary to price. | Choose NT3H2111 when dual-interface (RF + I²C) is required and cryptographic authentication is not mandated by system architecture. |
Compared with ST25TA02KB-DC6H5, ST25TA02KB-D offers identical functionality in tape-and-reel form for volume production, while NT3H2111 trades TruST25™ and GPO for I²C expandability - making ST25TA02KB-DC6H5 optimal for high-security, ultra-compact, RF-only deployments.
Availability
ST25TA02KB-DC6H5 is available at Aetrix Electronics and suitable for product authentication, smart packaging, industrial asset tagging, and NFC-enabled tool tracking requiring stable component supply across multi-year production cycles.
Supply support for ST25TA02KB-DC6H5 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 management ICs, sensors, and NFC solutions for industrial, automotive, and consumer markets.
The ST25 family delivers certified NFC Forum Type 4 tag ICs with embedded security, optimized for passive, battery-free identification and data exchange - targeting anti-counterfeiting, traceability, and smart label applications.
FAQ
What is the function of the GPO pin on ST25TA02KB-DC6H5?
The GPO pin is a configurable open-drain output that signals RF session events such as field detection, writing-in-progress (WIP), or session open. It requires an external pull-up resistor (≥4.7 kΩ) and drives low during configured events - enabling host microcontrollers to detect NFC activity without polling or RF communication overhead.
How does TruST25™ prevent cloning of ST25TA02KB-DC6H5?
TruST25™ generates a unique, hardware-bound digital signature tied to the chip's silicon fingerprint and UID. This signature is verified by ST's cloud service or on-device firmware; cloned tags lack the authentic cryptographic response, causing authentication failure during verification - blocking counterfeit deployment in secure supply chains.
Can ST25TA02KB-DC6H5 be used without an external antenna coil?
No - ST25TA02KB-DC6H5 requires connection to an external antenna coil via AC0 and AC1 pins. It contains no integrated antenna and relies entirely on externally tuned LC resonance at 13.56 MHz; omitting the coil results in zero RF coupling and non-functional operation.
What is the maximum NDEF message size supported by ST25TA02KB-DC6H5?
The NDEF file supports up to 256 bytes of user data, as defined by the FLEN field (0x0040) in the CC file. This accommodates typical NDEF records including URIs, plain-text, smart posters, and small binary payloads - sufficient for most authentication, configuration, and traceability use cases.
ST25TA02KB-DC6H5 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Series:
- ST25T
- Package/Case:
- 5-UFDFN
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- RFID Transponder
- Frequency:
- 13.56MHz
- Standards:
- ISO 14443, NFC
- Interface:
- -
- Voltage - Supply:
- 1.65V ~ 5.5V
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 5-UFDFPN (1.7x1.4)
ST25TA02KB-DC6H5 FAQ
1.How can I place an order for ST25TA02KB-DC6H5 through Aetrix?
Please submit a Request for Quotation (RFQ) for ST25TA02KB-DC6H5 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 ST25TA02KB-DC6H5 reliable?
The price and inventory of ST25TA02KB-DC6H5 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ST25TA02KB-DC6H5 is usually 5 days.
3.What payment methods are accepted for ST25TA02KB-DC6H5?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ST25TA02KB-DC6H5 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ST25TA02KB-DC6H5?
ST25TA02KB-DC6H5 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ST25TA02KB-DC6H5 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 ST25TA02KB-DC6H5?
For technical support, including ST25TA02KB-DC6H5 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ST25TA02KB-DC6H5 requirements.
6.How does Aetrix verify that ST25TA02KB-DC6H5 is sourced from the original manufacturer or authorized distributors?
All ST25TA02KB-DC6H5 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 ST25TA02KB-DC6H5 meets industry standards.
7.What is the process for return or replacement of ST25TA02KB-DC6H5?
All ST25TA02KB-DC6H5 units undergo pre-shipment inspection (PSI). If there is an issue with ST25TA02KB-DC6H5, 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 ST25TA02KB-DC6H5 part is unused and in its original packaging.
Return procedure for ST25TA02KB-DC6H5:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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