Infineon NFC I2C bridge tag for IoT

  • May 29, 2024
  • William Payne

Infineon Technologies has launched a high-performance NFC I2C bridge tag for single-tap authentication and secured configuration of IoT devices. The OPTIGA Authenticate NBT is an asymmetric cryptography tag for sign and verify operations. According to Infineon, it is the only one in the market that has been certified as a Type 4 Tag by the NFC Forum.

OPTIGA Authenticate NBT is designed for fast data exchange with large data volumes. It supports contactless NFC (Near Field Communication) communication between IoT devices and contactless readers such as smartphones. It can be used for various applications, such as secured configuration of electronic devices without a display, activation of shared mobility vehicles, passive commissioning of unpowered smart light bulbs prior to installation, and data logging on patient health monitors.

The device uses TEGRION hardware and enables a contactless interface speed of up to 848 Kbit/s and an I2C interface that supports up to 1 Mbits/s. The NFC I2C bridge tag offers 8 KB of memory to store customer and application-specific configuration information. The high on-chip capacitance enables smaller antenna designs, optimising both BOM costs and space requirements.

An OPTIGA Authenticate NBT Development Shield and the OPTIGA Authenticate NBT development kit have been made available to facilitate evaluation and design-in.