5V 30mA SOIC-20 Full-Duplex Bus Transceiver
EIA/TIA-232 3 Driver x 5 Receiver 20-SOIC 0 to 70
20-Pin Commercial Temperature Dual-Line Transceiver, 5V, Schmitt Trigger Input
Triple Transmitter Quint Receiver RS-232 20-Pin SOIC W T/R
