Qwiic Micro Dynamic NFC/RFID Tag

Sparkfun ElectronicsSKU: RB-Spa-2172
Manufacturer #: SPX-20691

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Description

  • Qwiic Micro Dynamic NFC/RFID Tag
  • For Contactless Communication
  • Efficient 64-kBit (8-kByte) EEPROM memory
  • Dual access via I2C and RF (NFC) interfaces
  • Conforms to ISO/IEC 15693 and NFC Forum Type 5

The Qwiic Micro Dynamic NFC/RFID Tag offers 64-kBit (8-kBytes) of EEPROM memory, accessible via both I2C and RF (NFC). This state-of-the-art tag conforms to ISO/IEC 15693 and NFC Forum Type 5 recommendations, allowing users to read and write the tag's memory using NFC even when powered down or disconnected.

The EEPROM memory can be divided into four areas with varying levels of protection, and the Arduino Library provides comprehensive methods for user memory control and data exchange.

  • 1x Qwiic Micro Dynamic NFC/RFID Tag

  • 1.25 x 0.3 inch

ST25DV64KC

  • Contactless Interface
    • Based on ISO/IEC 15693
    • NFC Forum Type 5 tag certified by the NFC Forum
    • Supports all ISO/IEC 15693 modulations, coding, sub-carrier modes, and data rates
    • Custom fast read access up to 53 kbit/s
  • Memory
    • 64-kBit (8-kByte) of EEPROM
    • I2C interface accesses bytes
    • RF interface accesses blocks of 4 bytes
    • Write time: From I2C - typical 5 ms for 1 up to 16 bytes, From RF - typical 5 ms for 1 block
    • Data retention: 40 years
    • Write cycle endurance: 400k to 1 million depending on temperature
  • Data protection
    • User memory: one to four configurable areas, protectable in read and/or write by three 64-bit passwords in RF and one 64‑bit password in I2C
    • System configuration: protected in write by a 64-bit password in RF and a 64-bit password in I2C
  • General Purpose Output (GPO) pin
    • Interrupt pin configurable on multiple RF and I2C events
  • Energy Harvesting
  • Supply Voltage: 1.8VMin, 5.5VMax
    • Note: Qwiic bus operates at 3.3VMax
  • I2C Addresses:
    • User Memory: 0x53
    • System Memory: 0x57
    • RF Switch Off: 0x51
    • RF Switch On:  0x55

Arduino Library

  • Read and write EEPROM memory via I2C
  • Change the size of the four user memory areas
  • Apply different levels of protection to the four areas
  • Change the I2C password
  • Read and Write NDEF (NFC Forum Data Exchange Format) records:
    • URI
    • WiFi
    • Text

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