All ProductsAMSSemiconductorsRf/if And RfidRfid, Rf Access, Monitoring Ics AMS SemiconductorsRf/if And RfidRfid, Rf Access, Monitoring Ics AS3930-BQFT RFID READER IC 110KHZ ~ 150KHZ SPI 2.4 V ~ 3.6 V 16-VQFN EXPOSED PAD MFR. Name: AMS AS3932-BTST MFR. Name: AMS AS3933-BQFT RFID READER IC 15KHZ ~ 150KHZ 2.4 V ~ 3.6 V 16-VQFN EXPOSED PAD MFR. Name: AMS AS3933-BTST RFID READER IC 15KHZ ~ 150KHZ 2.4 V ~ 3.6 V 16-TSSOP (0.173", 4.40MM WIDTH) MFR. Name: AMS AS3953A-BDFM RFID TRANSPONDER IC 13.56MHZ ISO 14443, NFC SPI 1.65 V ~ 3.6 V 10-VFDFN EXPOSED PAD MFR. Name: AMS