The DS26LS31 is a quad differential line driver designed for digital data transmission over balanced lines. The DS26LS31 meets all the requirements of EIA Standard RS-422 and Federal Standard 1020. It is designed to provide unipolar differential drive to twisted-pair or parallel-wire transmission lines.
The circuit provides an enable and disable function common to all four drivers. The DS26LS31 features TRI-STATE® outputs and logically ANDed complementary outputs. The inputs are all LS compatible and are all one unit load.
Datasheet – Product page (related)
Manufactured: 1989 week 24