STMicroelectronics — ST25DV-I2C Dynamic Tag ICs

NFC/I2C tag ICs combine long range with high-speed data transfer

Dynamic NFC tags provide a wireless bridge between a smartphone and a host device

The STMicroelectronics ST25DV-I2C series of dynamic tag ICs have dual NFC/RFID and I2C bus interfaces, to provide for untethered interaction between an external NFC smartphone or reader, and a host device’s microcontroller or applications processor.


Compliant with the ISO 15693 communication standard, the ST25DV-I2C series supports data exchange over an extended wireless communication range at a frequency of 13.56 MHz. This capability may be used, for instance, for in-the-box programming of electronic equipment at the point of production. Fast Transfer Mode operation, enabled by a half-duplex 256-byte buffer, also enables software updates in the field via any NFC-enabled mobile device. The ST25DV-I2C dynamic tags are compatible with any existing RFID infrastructure, with no additional investment required.


The ST25DV-I2C series, which is based on the ISO 15693 standard, complies with the specifications for NFC Forum Type 5 tags. Multiple 64-bit passwords offer enhanced data-protection capabilities. Mutual authentication between the host and the reader or smartphone can be implemented by coupling the ST25DV-I2C with an STM32 microcontroller that supports the secure boot/secure firmware update (SBSFU) service.


The ST25DV-I2C is suitable for use in industrial applications, offering high write-cycle endurance of 1 million cycles at 25°C, and 40-year data retention.


The latest evolution of the ST25DV-I2C series, the ST25DV-I2C EVO, offers extra performance and flexibility to boost productivity and efficiency. The ST25DV-I2C EVO IC lets the host system access the tag’s on-chip EEPROM memory more quickly and easily via the I2C interface.


The available parts are the ST25DV04KC, providing 4 kbits of EEPROM,  the ST25DV16KC with 16 kbits, and the ST25DV64KC offering 64 kbits. The devices are available in a choice of five packages.


  • Interrupt pin configurable on multiple RF events
  • Supply-voltage range: 1.8 V to 5.5 V
  • Energy-harvesting to power external components
  • Maximum temperature:
    • 125°C for SO8N, TSSOP8
    • 105°C at the RF interface


  • Smart meters
  • IoT devices
  • Professional products
  • Consumer devices
  • Industrial equipment
  • Battery-powered products
  • Electronic shelf labels

Development Board

Board Part Numbers: ST25DV64KC-DISCO, X-NUCLEO-NFC07A1

The ST25DV64KC-DISCO demonstration kit consists of an ST25DV64KC NFC interface tag embedded on a daughtercard using a Class 3 antenna, and an STM32 processor driving a motherboard. An additional Class 6 antenna-on-flex is also available. Dedicated application software is stored in Flash memory.


The X-NUCLEO-NFC07A1 expansion board, based on an ST25DV64KC NFC interface tag, and featuring a 54 mm diameter circular antenna, can be used in combination with the STM32 NUCLEO boards, thus offering more flexibility in the development process.

Share This

Subscribe to our newsletters

Subscribe to Future Electronics

Get access to the latest product information, technical analysis, design notes and more

Choose your region

FTM Board Club

Sign up for access to exclusive development boards, an essential tool for many innovative design projects.

*Available to pre-qualified EMEA customers only.

Related Articles

Susumu — KRL Series Low Resistance Current-Sensing Chip Resistors
20 June 2023
Susumu KRL Series low-resistance current-sensing chip resistors combine small package sizes and high...
Read More
ECS Inc — ECX-2236B Crystals
10 November 2022
The ECX-2236B from ECS Inc., is a family of compact, surface-mount crystals which are notable for their...
Read More
STMicroelectronics — BLUENRG-LP Wireless SoC
10 November 2022
Ultra-low power programmable Bluetooth® Low Energy wireless SoC solution by STMicroelectronics with unparalleled...
Read More