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STMicroelectronics ST25DV-DISCOVERY
- Part No.:
- ST25DV-DISCOVERY
- Manufacturer:
- STMicroelectronics
- Category:
- RF, RFID, Wireless Evaluation Boards
- Package:
- Datasheet:
-
ST25DV-DISCOVERY.pdf
- Description:
- DISCOVERY KIT FOR ST25DV04K
- Quantity:
- Payment:
- Shipping:
Inventory:2,155
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Product details
Overview
ST25DV-DISCOVERY from STMicroelectronics is a ready-to-use demonstration kit for evaluating the ST25DV04K dynamic NFC/RFID tag IC, featuring dual-interface operation (I²C + 13.56 MHz RF), 4-Kbit EEPROM, ISO/IEC 15693 and NFC Forum Type 5 compliance, and energy harvesting output (VOUT). It includes two PCBs: an STM32F405VGT6-based motherboard with color LCD, touch driver, LEDs, joystick, and on-board ST-LINK, plus a daughter card with etched Class 5 antenna and the ST25DV04K tag.
For engineers reviewing the ST25DV-DISCOVERY datasheet, ST25DV-DISCOVERY pinout, ST25DV-DISCOVERY application, or ST25DV-DISCOVERY equivalent, this kit supports rapid validation of NFC-enabled data logging, secure configuration transfer, contactless firmware update, and energy-harvesting sensor node prototyping using real-world RF coupling and I²C host control.
Technical Context
The kit implements a complete NFC tag evaluation platform where the ST25DV04K operates as both an I²C slave (address 0x53) and a contactless Type 5 tag, enabling simultaneous wired and wireless access to its 4-Kbit EEPROM. The RF interface supports fast read/write (up to 53 kbit/s), RF busy indication via GPO, and energy harvesting delivering up to 3 V at 1 mA under typical field conditions.
Host interaction is managed by the STM32F405VGT6 microcontroller running preloaded demonstration firmware that drives the LCD, processes joystick input, controls LED status, and orchestrates use cases including NFC-triggered BLE/Wi-Fi configuration handoff - available in the optional demonstration edition with integrated Bluetooth Low Energy and Wi-Fi® modules.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Kit Composition | Two PCBs: ST25DV_Discovery_Mboard (STM32F405VGT6, 1 MB Flash, 192+4 KB SRAM, 320×200 LCD, ST-LINK) and ST25DV_Discovery_ANT_C5 (Class 5 antenna, ST25DV04K, I²C connector, VOUT energy harvesting) |
| NFC/RFID Compliance | ISO/IEC 15693 and NFC Forum Type 5 tag protocol - ensures interoperability with standard NFC readers and smartphones |
| Memory | 4-Kbit EEPROM (512 bytes) with user-configurable password protection and RF/I²C atomic write support |
| I²C Interface | Standard-mode (100 kHz) and fast-mode (400 kHz) compatible; fixed 7-bit address 0x53; supports multi-byte read/write and RF busy polling |
| Energy Harvesting | VOUT pin delivers regulated ~3 V output with 10 nF filtering; enables battery-free operation of external logic or sensors during RF field presence |
| Antenna Form Factor | 40 mm × 24 mm etched PCB antenna tuned for 13.56 MHz; swappable with Class 1 or Class 6 antennas via ST's antenna bundle |
Availability
ST25DV-DISCOVERY is available at Aetrix Electronics and suitable for NFC tag evaluation, contactless configuration provisioning, energy-harvesting IoT node development, and embedded security prototyping requiring stable component supply and full design documentation access.
Supply support for ST25DV-DISCOVERY 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 analog/mixed-signal devices for industrial, automotive, and consumer applications.
The ST25DV-DISCOVERY belongs to ST's ST25 Dynamic NFC tag product line, engineered specifically to enable dual-interface (contact + contactless) data exchange, secure parameter storage, and ambient RF energy harvesting in space-constrained embedded systems.
FAQ
What is the role of the ST25DV04K IC on the ANT_C5 board?
The ST25DV04K serves as a dual-interface dynamic NFC tag: it stores configuration or sensor data accessible via I²C from the STM32 host, and simultaneously exposes the same memory to NFC phones or RFID readers over 13.56 MHz RF. Its GPO pin signals RF activity, and its VOUT pin supplies harvested energy to external circuitry during field presence.
Does the ST25DV-DISCOVERY require external power to operate the NFC tag function?
No - the ST25DV04K on the ANT_C5 board operates in passive mode powered solely by the RF field from an NFC reader or smartphone. The motherboard is powered via USB, but the tag itself draws no current from USB; its VOUT pin delivers harvested energy only when an RF field is present and sufficient.
Can the demonstration firmware be modified or reprogrammed?
Yes - the ST25DV_Discovery_Mboard uses an STM32F405VGT6 with on-board ST-LINK v2-1 debugger. Firmware source code, drivers, schematics, and BOM are publicly available on st.com, enabling full customization of the LCD interface, NFC command sequencing, BLE/Wi-Fi handoff logic, and I²C tag interaction routines.
Is the Class 5 antenna replaceable with other antenna types?
Yes - the kit supports antenna interchangeability. ST offers dedicated antenna bundles (Class 1 and Class 6) designed for different read ranges and form factors. The ANT_C5 board provides standardized connectors and layout provisions to swap antennas while maintaining impedance matching and RF performance alignment with the ST25DV04K's RF frontend.
ST25DV-DISCOVERY Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Series:
- -
- Packaging:
- Bulk
- Product Status:
- Obsolete
- Type:
- Near Field Communication (NFC)
- Frequency:
- 13.56MHz
- Contents:
- Board(s)
- Utilized IC / Part:
- ST25DV04K
ST25DV-DISCOVERY FAQ
1.How can I place an order for ST25DV-DISCOVERY through Aetrix?
Please submit a Request for Quotation (RFQ) for ST25DV-DISCOVERY 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 ST25DV-DISCOVERY reliable?
The price and inventory of ST25DV-DISCOVERY are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ST25DV-DISCOVERY is usually 5 days.
3.What payment methods are accepted for ST25DV-DISCOVERY?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ST25DV-DISCOVERY transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ST25DV-DISCOVERY?
ST25DV-DISCOVERY orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ST25DV-DISCOVERY 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 ST25DV-DISCOVERY?
For technical support, including ST25DV-DISCOVERY datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ST25DV-DISCOVERY requirements.
6.How does Aetrix verify that ST25DV-DISCOVERY is sourced from the original manufacturer or authorized distributors?
All ST25DV-DISCOVERY 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 ST25DV-DISCOVERY meets industry standards.
7.What is the process for return or replacement of ST25DV-DISCOVERY?
All ST25DV-DISCOVERY units undergo pre-shipment inspection (PSI). If there is an issue with ST25DV-DISCOVERY, 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 ST25DV-DISCOVERY part is unused and in its original packaging.
Return procedure for ST25DV-DISCOVERY:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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