MLX90109
125kHz, Unique parallel antenna, No external reference, No zero modulation problems, On chip decoding ( Biphase / Manchester ASK ), Baud rate selectable "on-chip" filtering, Open drain data / clock outputs, Power down mode, OOK downlink communication RFID Transceiver IC

MLX90121
13.56MHz, Conforms with ISO / IEC 14443A / B & 15693, Provision for EPC standard compliance, Programmable encoder and decoder for custom protocols, Low external component count RFID Transceiver IC

MLX90132
3.3V, Conforms with ISO/IEC 18092 (NFC), Conforms with ISO/IEC 14443 A and B, Conforms with ISO/IEC 15693 or ISO/IEC 18000-3 mode 1, Standard SPI interface with 256 Bytes Buffer, High speed communication (848kbit/s), Embedded RF field and TAG detectors RFID Transceiver IC