SmartElex Dynamic NFC RFID Tag


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SKU: R101053
  1. Supply Voltage: 1.8VMin, 5.5VMax
  2. Memory 64-kBit (8-kByte) of EEPROM
  3. RF interface accesses blocks of 4 bytes
  4. From I2C: typical 5ms for 1 up to 16 bytes


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Brand: SmartElex
Category: RFID Sensors
Tags: SmartElex, SmartElex Sensor Modules

The SmartElex Dynamic NFC/RFID Tag features the ST25DV64KC dynamic Near Frequency Communication (NFC) / Radio Frequency Identification (RFID) tag IC from STMicroelectronics©. The ST25DV64KC offers 64-kBit (8-kBytes) of EEPROM memory which can be accessed over both I2C and RF (NFC)! It’s a state-of-the-art tag that conforms to ISO/IEC 15693 or NFC Forum Type 5 recommendations. You can even read and write the tag’s memory using NFC even while the tag is powered down or disconnected!
The SmartElex Dynamic NFC/RFID Tag includes 64 Kbit EEPROM for users to write and read data from, a general purpose output to act as an external interrupt reporting events such as RF field changes, RF activity, I2C writes and RF switches toggling over I2C. The IC has a supply voltage range of 1.8V to 5.5V though when in a PicoBlade connector circuit it runs at 3.3V. It also includes an energy harvesting pin capable of outputting µW of power with an RF field of sufficient strength.
The ST25DV64KC supports a fast transfer mode to send the contents of a 256-byte buffer between a device connected to the tag over I2C (referred to as the tag’s Mailbox) and an RF device such as a reader or smartphone. This makes it so you can store data on the tag and have it available for reading by an RF device by simply bringing it into the RF read range, even if the tag is powered off. This data can also be password-protected with a 64-bit value.


  1. Model – ST25DV64KC(Dynamic NFC/RFID tag IC)
  2. Supply Voltage: 1.8VMin, 5.5VMax
  3. Note: PicoBlade connector operates at 3.3VMax
  4. Custom fast read access up to 53kbit/s
  5. Memory 64-kBit (8-kByte) of EEPROM
  6. RF interface accesses blocks of 4 bytes
  7. From I2C: typical 5ms for 1 up to 16 bytes
  8. From RF: typical 5ms for 1 block
  9. Write cycle endurance: 400k to 1 million depending on temperature

Package Includes:

1 x SmartElex Dynamic NFC RFID Tag

SKU: R101053 Category: Tags: ,
Supply Voltage (V)



64-kBit, 8-kByte


5ms for 1 up to 16 bytes

RF Range

5ms for 1 block

I2C Address

RF Switch Off: 0x51, RF Switch On: 0x55, System Memory: 0x57, User Memory: 0x53

PCB Size ( L x W ) mm

27.20 x 25.4

Shipping Weight 0.005 kg
Shipping Dimensions 5 × 5 × 2 cm
1 Year Warranty

This item is covered with a supplier warranty of 1 year from the time of delivery against manufacturing defects only. In case of manufacturing defects or issues, we will replace the part after warranty confirmation by our technical team, but we won’t offer refunds or replace the entire product.

What voids the warranty:

If the product is subject to misuse, tampering, static discharge, accident, water or fire damage, use of chemicals & soldered or altered in any way.

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Country Of Origin: India