CLOUD-ST25TA02KB

Ready-to-use NFC forum type 4 Tag IC demonstration board intended to evaluate the ST25TA02KB-P device. The ST25TA02KB-P is a dynamic NFC/RFID tag IC with a digital general purpose output (GPO), embedding a 2Kbit EEPROM that supports NDEF tag applications for NFC forum type 4. The device communicates using the ISO/IEC 14443 type A protocol and is fully powered by the RF field. When the GPO output is used, an external reference voltage is required to set the high level voltage of the GPO signal to be directly compatible with the I/O voltage of the MCU or host without the need for any level shifter. The GPO signal is active High when asserted and can be used as a rising edge interrupt. It may be configured through the RF interface for various uses, like indicating field detection (by default) to wake-up an MCU or host like a Bluetooth® or a Wi-Fi® chipset.

• 19mm² single layer inductive antenna etched on the PCB
• Contactless interface
• TruST25™ digital signature, NFC forum type 4 tag, ISO/IEC 14443 type A
• 106Kbps data rate
• Internal 50pF tuning capacitance, enabling design of small inductive antennas
• 256byte (2 Kbit) EEPROM with NDEF data support
• 200 year data retention, 1 million erase-write cycles endurance
• 128bit password data protection
• Configurable general purpose output (GPO) indicating, for example, RF field detection
• 20bit event counter for read or write access with anti-tearing feature