EXAR SP3223ECA-L/TR, Line Transceiver 2-TX 2-RX 2-TRX, 3.3 V, 5 V, 20-Pin SSOP
IC TXRX RS232 ESD TRUE 20SSOP
IC DVR/RCVR RS232 ESD 16SSOP
IC TXRX RS232 ESD SD 16SSOP
SP3220ECA/TR
