AX5243-1-TW30 from onsemi is a IC RF TXRX ISM<1GHZ 20VFQFN
Base Number: AX5243
Package: Tape & Reel or Cut Tape
Standard Package: 3,000
RoHS: ROHS3 Compliant
REACH: Unaffected
MSL: Unlimited
ECCN: EAR99
HTSUS: 8542.39.0001
RF and Wireless / RF Transceiver ICs