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New Product Introduction

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NXP NTAG I2C Plus A simple and cost effective NFC solution

The NTAG I2C plus combines a passive NFC interface with a contact I2C interface offering a fast way to add tap-and-go connectivity to applications.

Designed to be the perfect enabler for NFC in home-automation and consumer applications, this feature-packed, next-generation connected NFC tag is a ultra fast and highly BoM optimized way to add tap-and-go connectivity to just about any electronic device.

The NXP NTAG I2C plus is a family of connected NFC tags that combine a passive NFC interface with a contact I2C interface. The second generation of NXP’s connected-tag technology is fully backwards compatible with first-generation NTAG I2C products. In addition it adds new, advanced features for password protection, full memory-access configuration from both interfaces, an originality signature for protection against cloning, four times higher pass-through performance along with energy harvesting capabilities.

Key features

Additional features

KEY BENEFITS

Full interoperability with every NFC-enabled device
Smooth end-user experience with super-fast data exchange via NFC and I2C interface
Zero-power operation with non-volatile data storage
Very low bill of materials and small footprint
Data protection to prevent unauthorized data manipulation
Multi-application support, enabled by memory size and segmentation options

KEY FEATURES

Interoperability

NFC interface ISO/IEC 14443A Part 2&3 compliant
NFC Forum Type 2 Tag 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

Standard (100 kHz) and fast (400 kHz) modes

Memory

888/1912 bytes of EEPROM-based user memory
Clear arbitration between NFC and I2C memory access

Data transfer

Pass-through mode with 64-byte SRAM buffer
FAST READ and FAST WRITE commands for higher data throughput

Security and memory-access management

Full, read-only, or no memory access from NFC interface, based on 32-bit password protection
Full, read-only, or no memory access from I2C interface
Originality signature based on Elliptic Curve Cryptography (ECC) for simple, genuine authentication
NFC silence to disable the NFC interface

Power management

Configurable field-detection output signal for data-transfer synchronization and device wake-up
Energy harvesting from NFC field, so as to power external devices (e.g. connected microcontroller)