RS-232 Bus Transceiver, 4Tx/4Rx, 5V, 120Kbps, SOIC
Quad Transmitter/Receiver RS-232 24-Pin SOIC W Tube
RS-232 Transceiver, 4DR/4RX, 5V, 120Kbps, SOIC
Quad Transmitter/Receiver RS-232 24-Pin SOIC W T/R