Found 5 alternatives for NTP53121G0JTTZ by NXP USA Inc.. Rfid Rf Access Monitoring Ics — 16-TSSOP (0.173", 4.40mm Width).
IC RFID READER 15-150KHZ 16TSSOP
NTAG
FRACTIONAL-NPLL TRANSIC 16TSSOP
IC RFID READER 110-150KZ 16TSSOP