Quad RS-232 Transmitter, 300Kbps, 9V, 4-Ch, PDIP
Quad Receiver RS-232 14-Pin PDIP Tube
Line Driver, 4 Func, 4 Driver, BIPolar, PDIP14
14-Pin Dual Line Driver, 8.91-15V, 34mA, Commercial Extended, DIP-14
Dual-Line Receiver, Schmitt Trigger, 5V, 26mA, 14-Pin PDIP
IC 75189/SN75189N/MC1489N Texas Instrument
