The MLX90132 transceiver IC for NFC is designed and qualified for automotive systems, yet is robust and durable for use in retail, consumer and industrial NFC applications, says Melexis. The 13.56MHz, integrated, multi-protocol RFID/NFC transceiver IC supports ISO/IEC protocols 18092, 14443A and B, 15693 as well as 18000-3. It has been designed to handle sub-carrier frequencies from 106 to 848kHz and baud rates up to 848kbit/s. The device offers two modes and six different states of operation. In hibernation mode, power consumption is less than 10µA while in receiver mode, the device consumes only 2.5mA. The 256byte buffer can handle buffering an entire RFID frame. The SPI/UART communication ports interface with the majority of microcontrollers, including low cost ones, says the company. The IC can be used to access a car and to start it. It can be used for the interior settings, such as infotainment, seat position, heating, mirrors, telematics and other driver preferences. It can be used for authentication in car rentals for example and can also support wireless comms, such as Wi-Fi and Bluetooth. The capability to quickly set up communications will also allow other wireless technologies to take advantage of NFC's faster authentication process. The IC is packaged in a 5x5mm QFN package and rated for operation over -40 to +105°C. It is manufactured and qualified according to AEC-Q100 automotive standard.
