NXP’s NTAG I2C plus extends the family of connected NFC tags

26th February 2016

Jordan Mulcare

0 0

Designed to be the 'perfect' enabler for NFC in home-automation and consumer applications, this feature-packed, next-gen connected NFC tag is the fastest, most BOM optimised way to add 'tap-and-connect' communications to any electronic device.

NXP’s NTAG I²C plus is the latest development of NXP NFC tags that combines a passive NFC interface and a contact I²C interfaces together with a non-volatile memory. On top of the well-known zero power capabilities of this family, NTAG I²C plus offers new features like password protection, full memory access configuration from both interfaces and an originality signature for protection against cloning.

NTAG I²C plus is also further enhancing end user experience by delivering four times higher data transfer performance. This second gen of NXP’s industry leading connected tag technology maintains full backward compatibility with first-generation NTAG I²C products and remains a suitable, most cost effective choice to integrate NFC capabilities into any embedded system.

Additional NTAG I²C plus features include:

Pass-through mode with 64-byte SRAM buffer
FAST READ and FAST WRITE commands for higher data throughput
Full, read-only, or no memory access from I²C interface and NFC interface, based on 32-bit password protection
NFC Forum Type 2 Tag and NFC interface ISO/IEC 14443A Part 2&3 compliant
Input capacitance of 50 pF
Unique 7-byte serial number
GET VERSION command for easy identification of chip type and supported features
I²C interface with standard (100kHz) and fast (400kHz) modes
888/1912 bytes of EEPROM-based user memory
Originality signature based on Elliptic Curve Cryptography (ECC) for simple, genuine authentication
Configurable field-detection output signal for data-transfer synchronisation and device wake-up
Energy harvesting from NFC field, so as to power external devices (e.g. connected microcontroller)
Extended operating temperature range: 140 +105°C

The NTAG I²C plus integration is supported by an all-in-one demo kit (OM5569/NT322E, OM5569/NT322ER) that includes a ready-to-use demonstrator, comprehensive evaluation tools for all NTAG I²C plus functionalities that is further complemented by a very thorough set of tools such as an Android Library from the MIFARE SDK that allows customers to develop Android Apps in no time.

Specifically designed for smart home applications, the NTAG I²C family along with the PN7120 NFC controller are all integrated into the NXP latest smart home evaluation kit EVK004 together with the latest generation of ZigBee Controller JN5169.