RS-232 Transceiver, 5V, 4 Tx/5 Rx, SOIC W
Quad Transmitter Quint Receiver RS-232 28-Pin SOIC W Tube
5V RS-232 Transceiver, 4 Drv/5 Rec, 120Kbps, SOIC, Tape & Reel
Quad Transmitter Quint Receiver RS-232 28-Pin SOIC W T/R