DS1489 Datasheet - National Semiconductor

DS1489 Quad Line Driver

The DS1489/DS1489A are quad line receivers designed to interface data terminal equipment with data communications equipment. They are constructed on a single monolithic silicon chip. These devices satisfy the specifications of EIA Standard RS-232D. The DS1489/DS1489A meet and exceed the specificatio.

DS1489 Features

* n n n n n Four separate receivers per package Programmable threshold Built-in input threshold hysteresis “Fail safe” operating mode: high output for open inputs Inputs withstand ± 30V Schematic and Connection Diagrams www.DataSheet4U.com 00577701 (1⁄4 of unit shown) DS1489: RF = 10k DS1489A: RF =

DS1489_NationalSemiconductor.pdf