Tiny NFC tags for connected-device applications

June 02, 2016 // By Graham Prophet
STMicroelectronics and Securitag Assembly Group (SAG) (Taiwan), supplier of RFID transponders, are to cooperate to produce a tiny NFC Ferrite Tag that uses STMicroelectronics’ ST25 NFC tag IC for IoT (Internet of Things) data-transmission applications.

Small, light, and thin, the NFC Ferrite Tag can be surface-mounted during production through the metal pad that can be directly soldered to the PCB surface. The NFC Ferrite tag can function when placed on metal products because of its anti-metallic-interference characteristics. These features make it attractive for IoT data-transmission applications in consumer electronics, wearable devices, and smart healthcare products. The tiny NFC Ferrite Tag perfectly suits the need for smaller, thinner, and lighter design for wearable products where compactness is critical.

 

With small dimensions (4.9 x 3.0 x 2.5 mm), the NFC Ferrite Tag with an embedded antenna maintains RF performance, using ST’s ST25TA02K NFC Forum Type 4 tag IC with built-in NDEF (NFC Data Exchange Format) message support. This allows the NDEF data to be directly executed through an Android NFC phone without any dedicated application software. In addition to NDEF support, the ST25TA02K features a 20-bit counter and 128-bit password to protect read / write access to the 2 kbit EEPROM memory.

 

ST adds that the growing momentum for NFC is expected to drive new IoT and wireless applications in the smart home, smart healthcare/ medical, smart city, and smart factory.

 

Samples of the NFC Ferrite Tag are available at http://www.sag.com.tw/RFID_eNEWS/201605_Enews-4.html

 

Samples of ST’s ST25TA02K NFC Tag IC are available at www.st.com/st25ta

 

STMicroelectronics; www.st.com

 

SAG; www.sag.com.tw