DS14C88/DS14C88T (RS-232 SERIAL PORT DEVICES) Quad CMOS Line Driver +-----------+ V- |1 +--+ 14| V+ INPUT A |2 13| INPUT D2 OUTPUT A |3 12| INPUT D1 INPUT B1 |4 DS14 11| OUTPUT D INPUT B2 |5 C88 10| INPUT C2 OUTPUT B |6 9| INPUT C1 GND |7 8| OUTPUT C +-----------+