5Pcs SN75C188DR SOIC-14 RS-232 Interface IC Quadruple Low-Power Line Driver

15Pcs SN75C189NSR SO-14 RS-232 Interface IC Quadruple Low-Power Line Receiver

13Pcs SN75189ANSR SO-14 RS-232 Interface IC Quadruple Line Receiver

12Pcs SN75189APWR TSSOP-14 RS-232 Interface IC Quadruple Line Receiver 14-TSSOP

13Pcs SN75189NSR SO-14 RS-232 Interface IC Quadruple Line Receiver

1Pcs MAX251CPD+ PDIP-14 RS-232 Interface IC 5V, Isolated, RS-232 Driver Receiver

1Pcs SN75ALS173NSR SO-16 RS-422/RS-485 Interface IC Quadruple Diff Line Receiver

MAXIM MAX231EPD PDIP-14