The NTE2631 is a quad differential line driver constructed using Advanced LowPower Schottky processing in a 16Lead DIP type package designed for digital data transmission over balanced lines. This device meets all the requirements of EIA standard RS422 and federal standard 1020 and is designed to provide unipolar differential drive to twistedpair or parallelwire transmission lines. The NTE2631 provides an enable and disable function common to all four drivers and features 3state outputs and logical ORed complemtary enable inputs. The inputs are all LS cxompatible and are all one unit load.