The MF1PLUS8031DA4/03, from NXP USA Inc. is a 13.56 MHz RFID transponder IC for ISO 14443 and MIFARE, with UART MOA4 interface, supplied as a smart card module.
The MF1PLUS8031DUD/03, from NXP USA Inc. is an RFID transponder IC for 13.56 MHz in wafer form.
The MF1PLUS8031DA8/03, from NXP USA Inc. is an RFID access IC (CLHW).
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