2/2 RS-232 Transceiver, 200Kbps, 5V, SOIC W, Full Duplex
Dual Transmitter/Receiver RS-232 18-Pin SOIC W T/R
Dual Full-Duplex Bus Transceiver, 200Kbps, 5V, SOIC-18
Dual-Line Transceiver, 4.5-5.5V, 18-Pin SOIC, Industrial Temperature
IC DUAL LINE TRANSCEIVER, PDSO18, SOIC-18, Line Driver or Receiver