All ProductsAtmelSemiconductorsRf/if And RfidRfid, Rf Access, Monitoring Ics ATMEL SemiconductorsRf/if And RfidRfid, Rf Access, Monitoring Ics U2270B-MFP RFID READER IC 100KHZ ~ 150KHZ 8 V ~ 16 V 16-SOIC (0.154", 3.90MM WIDTH) MFR. Name: Atmel U2270B-MFPY RFID READER IC 100KHZ ~ 150KHZ 8 V ~ 16 V 16-SOIC (0.154", 3.90MM WIDTH) MFR. Name: Atmel