NT3H1101_NT3H1201: NTAG I²C - Energy harvesting NFC Forum Type 2 Tag with field detection pin and I²C interface

Key features

• RF interface NFC Forum Type 2 Tag compliant
• I²C interface
• Configurable field detection pin based on open drain implementation that can be triggered upon the following events:
  • RF field presence
  • First start of communication
  • Selection of the tag only
• 64 byte SRAM buffer for fast transfer of data (Pass-through mode) between the RF and the I²C interfaces located outside the User Memory
• Wake up signal at the field detect pin when:
  • New data has arrived from one interface
  • Data has been read by the receiving interface
• Clear arbitration between RF and I²C interfaces:
  • First come, first serve strategy
  • Status flag bits to signal if one interface is busy writing to or reading data from the EEPROM
• Energy harvesting functionality to power external devices (e.g. microcontroller)
• FAST READ command for faster data reading

RF interface

• Contactless transmission of data
• NFC Forum Type 2 Tag compliant
• Operating frequency of 13.56 MHz
• Data transfer of 106 kbit/s
• 4 bytes (one page) written including all overhead in 4.8 ms via EEPROM or 0.8 ms via SRAM (Pass-through mode)
• Data integrity of 16-bit CRC, parity, bit coding, bit counting
• Operating distance of up to 100 mm (depending on various parameters, such as field strength and antenna geometry)
• True anticollision
• Unique 7 byte serial number (cascade level 2 according to ISO/IEC 14443-3

Memory

• 1904 bytes freely available with User Read/Write area (476 pages with 4 bytes per pages) for the NTAG I²C 2k version
• 888 bytes freely available with User Read/Write area (222 pages with 4 bytes per pages) for the NTAG I²C 1k version
• Field programmable RF read-only locking function with static and dynamic lock bits configurable from both I²C and NFC interfaces
• 64 bytes SRAM volatile memory without write endurance limitation
• Data retention time of 20 years
• Write endurance 500,000 cycles

I²C interface

• I²C slave interface supports Standard (100 kHz) and Fast (up to 400 kHz) mode
• 16 bytes (one block) written in 4.5 ms (EEPROM) or 0.4 ms (SRAM - Pass-through mode) including all overhead
• RFID chip can be used as standard I²C EEPROM

Security

• Manufacturer-programmed 7-byte UID for each device
• Capability container with one time programmable bits
• Field programmable read-only locking function per page for first 12 pages and per 16 (1k version) or 32 (2k version) pages for the extended memory section

Key benefits

• The Pass-through mode allows fast download and upload of data from RF to I²C and vice versa without the cycling limitation of EEPROM
• NDEF message storage up to 1904 bytes (2k version) or up to 888 bytes (1k version)
• The mapping of the SRAM inside the User Memory buffer allows dynamic update of NDEF message content

With all its integrated features and functions the NTAG I²C is the ideal solution to enable a contactless communication via an NFC device (e.g., NFC enabled mobile phone) to an electronic device for:

• Zero power configuration (late customization)
• Smart customer interaction (e.g., easier after sales service, such as firmware update)
• Advanced pairing (for e.g., WiFi or Blue tooth) for dynamic generation of sessions keys

Easier product customization and customer experience for the following applications:

• Home automation
• Home appliances
• Consumer electronics
• Healthcare
• Printers
• Smart meters