ST25DV-I2C series Dynamic NFC Tags

The ST25DV-I2C series of Dynamic tags offers both an NFC/RFID contactless interface and an enhanced I²C wired interface for connecting to a host, such as a microcontroller or microprocessor.

What is the ST25DV-I2C series?

These NFC Forum Type 5 Dynamic tags operate in the high-frequency range (13.56 MHz). The data stored in tags can be accessed by any NFC smartphone or NFC/RFID HF professional reader, and also by an MCU, using the I2C wired link.

ST25 NFC Dynamic Tag brings wiresless connectivity to MCU

ST25DV-I2C tags offer rapid writing, fast transfer mode, enhanced I²C features, energy harvesting, low power mode, and password protection. Thanks to this rich feature set, these highly integrated and cost-effective tags are suitable for a wide range of applications.

Moreover, developers benefit from a complete ecosystem with evaluation boards, software tools, mobile app, and other resources to speed up application development.

ST25DV-I2C series is in the ST 10 year longevity program that ensures continuous supply for 10 years.

Applications

ST25DV-I2C series products are suitable for a broad range of applications in industrial or consumer domains.
Its rich feature set, including fast transfer mode (between NFC and I²C interfaces), NFC Forum type 5 support, highly reliable EEPROM memory, energy harvesting capabilities, and large package range ensure that the ST25DV-I2C series can meet various customer application needs.

Lighting and Controls

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Factory automation

Metering

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IoT for Smart home and city

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Home and Professional appliances

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Medical and Healthcare

Discover our portfolio

The ST25DV-I2C series comes in many packages, ranging from robust to ultrasmall solutions, with 4 to 64 kilobits of memory and several temperature grades.

Graph representing ST25DV-I2C series portfolio, featuring multiple packages from 4kbits to 64 kbits memory density

Benefits

Allows batteryless or low-power operation
Improves user experience through NFC features and capabilities
Reduces complexity and time in some production processes
Enables in-the-field contactless maintenance in constrained environments (sealed products, difficult access, etc.)
Compatible with RFID reader and NFC mobile phone
Easy physical integration thanks to small packages
Support multiple use cases along a product lifetime from manufacturing to end user

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ST25DV-I2C series characteristics

Interface	ISO/IEC 15693 and NFC Forum type 5 tag contactless interface 1MHz I²C serial interface operating from 1.8 to 5.5 V
Memory	EEPROM memory density from 4 to 64 Kbits Endurance of 1M cycles Data retention 40 years
Advanced features	Fast transfer mode thanks to 256-byte buffer Enhanced features for I²C interface Energy harvesting 64-bit passwords protection Low power mode GPO interruption pin configurable on multiple RF events 64-bit unique identifier
Packages	TSSOP8, SO-8 UDFPN8, UDFPN12 WLCSP10
Temperature ranges	Range 6: From -40 to 85°C Range 8: From -40 to 105°C (UDFPN8 only) From -40 to 125°C (SO8N and TSSOP8 only, 105°C max on RF interface)
Longevity	ST 10-year longevity program