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STMicroelectronics ANT3-M24LR-A
- Part No.:
- ANT3-M24LR-A
- Manufacturer:
- STMicroelectronics
- Category:
- RF, RFID, Wireless Evaluation Boards
- Package:
- Datasheet:
-
ANT3-M24LR-A.pdf
- Description:
- ANTENNA REF FOR M24LR-A
- Quantity:
- Payment:
- Shipping:
Inventory:1,219
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
ANT3-M24LR-A from STMicroelectronics is a ready-to-use SMD-inductor-based antenna reference board for the M24LR64-R dual-interface EEPROM, integrating a 4.7 µH RF inductor tuned to 13.56 MHz and an I²C connector for wired interface evaluation. It enables functional validation of RF-NFC and I²C read/write operations in proximity-based data logging systems.
For engineers reviewing the ANT3-M24LR-A datasheet, ANT3-M24LR-A pinout, ANT3-M24LR-A application, or ANT3-M24LR-A equivalent, this board supports rapid prototyping of dual-interface EEPROM integration in NFC-enabled industrial tags, smart packaging, and asset tracking systems requiring simultaneous contactless and wired access to non-volatile memory.
Technical Context
The board implements a passive 13.56 MHz RF antenna using a discrete 4.7 µH SMD inductor, directly coupled to the RF pins of the M24LR64-R IC. Its PCB layout follows ST's recommended antenna geometry and impedance-matching guidelines for ISO/IEC 14443 Type B compliance.
It provides direct I²C bus access via a standard 4-pin header (VCC, GND, SCL, SDA), enabling host MCU control independent of RF operation. No onboard voltage regulation or level-shifting circuitry is included - VCC must be supplied externally at 1.8–5.5 V per M24LR64-R specifications.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Antenna Frequency | 13.56 MHz - matches ISO/IEC 14443 Type B and NFC Forum Tag Type 4 standards for interoperability with common readers. |
| Inductor Value | 4.7 µH - selected to resonate with M24LR64-R's internal capacitance for optimal RF power harvesting and modulation efficiency. |
| Interface Support | I²C + RF - enables concurrent wired configuration and contactless data exchange without hardware conflict. |
| EEPROM Capacity | 64 Kbit (8 Kbytes) - provided by on-board M24LR64-R, supporting sector protection and 100 k write cycles. |
| Operating Voltage | 1.8–5.5 V - compatible with common microcontroller I/O rails; no onboard regulation required. |
| PCB Format | Single-layer reference design - Gerber files available from ST for replication or layout adaptation. |
Availability
ANT3-M24LR-A is available at Aetrix Electronics and suitable for NFC tag development, dual-interface memory evaluation, and ISO/IEC 14443-compliant reader interoperability testing requiring stable component supply and documented reference design fidelity.
Supply support for ANT3-M24LR-A 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, designing and manufacturing microcontrollers, analog ICs, MEMS, power devices, and secure MCUs for industrial, automotive, and consumer applications.
The ANT3-M24LR-A belongs to ST's NFC & RFID reference design portfolio, created to accelerate adoption of dual-interface EEPROMs in secure, battery-free, and hybrid-communication IoT endpoints.
FAQ
Does the ANT3-M24LR-A include the M24LR64-R IC?
Yes - the board integrates one M24LR64-R dual-interface EEPROM IC pre-soldered and electrically connected to both the 4.7 µH antenna inductor and the I²C header. No additional assembly is required to begin evaluation.
Can the ANT3-M24LR-A operate without an external power supply?
Yes - in RF mode, the M24LR64-R harvests energy from a 13.56 MHz reader field via the 4.7 µH inductor, enabling fully passive operation. For I²C mode, a 1.8–5.5 V external supply must be applied to the VCC pin.
Is antenna tuning required before use?
No - the 4.7 µH inductor and PCB layout are pre-optimized per ST's AN4219 application note for resonance at 13.56 MHz. Measured Q-factor and matching meet ISO/IEC 14443 Type B requirements out-of-box.
Where can I obtain the Gerber files for this board?
Gerber files for ANT3-M24LR-A are publicly available for download from STMicroelectronics' official website at www.st.com under document ID Doc ID 17855, referenced in the board's data brief.
ANT3-M24LR-A Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Series:
- -
- Packaging:
- Bulk
- Product Status:
- Obsolete
- Type:
- Antenna
- Frequency:
- 13.56MHz
- Contents:
- Board(s)
- Utilized IC / Part:
- M24LR-64-R
ANT3-M24LR-A FAQ
1.How can I place an order for ANT3-M24LR-A through Aetrix?
Please submit a Request for Quotation (RFQ) for ANT3-M24LR-A 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 ANT3-M24LR-A reliable?
The price and inventory of ANT3-M24LR-A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ANT3-M24LR-A is usually 5 days.
3.What payment methods are accepted for ANT3-M24LR-A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ANT3-M24LR-A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ANT3-M24LR-A?
ANT3-M24LR-A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ANT3-M24LR-A 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 ANT3-M24LR-A?
For technical support, including ANT3-M24LR-A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ANT3-M24LR-A requirements.
6.How does Aetrix verify that ANT3-M24LR-A is sourced from the original manufacturer or authorized distributors?
All ANT3-M24LR-A 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 ANT3-M24LR-A meets industry standards.
7.What is the process for return or replacement of ANT3-M24LR-A?
All ANT3-M24LR-A units undergo pre-shipment inspection (PSI). If there is an issue with ANT3-M24LR-A, 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 ANT3-M24LR-A part is unused and in its original packaging.
Return procedure for ANT3-M24LR-A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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