www.DataSheet.co.kr Union Microsystems, Inc. UM2.
UM202E - (UM202E / UM232E) Single Supply RS-232 Transceivers
UM232EEPE - Single Supply RS-232 Transceivers
UM232EEUE - Single Supply RS-232 Transceivers
UM232EESE - Single Supply RS-232 Transceivers
UM232E - (UM202E / UM232E) Single Supply RS-232 Transceivers