DS1489

DS1489/DS1489A Quad Line Receiver July 2002 DS1489/DS1489A Quad Line Receiver General Description 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 specifications of MC1489/MC1489A and are pin-for-pin replacements. 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 = 2k Dual-In-Line or Small-Out Line Package 00577702 Top View Order Number DS1489M, DS1489MX, DS1489N, DS1489AM, DS1489AMX or DS1489AN See NS Package Number M14A or N14A © 2002 National Semiconductor Corporation DS005777 www.national.com DS1489/DS1489A AC Test Circuit and Voltage Waveforms 00577703 www.DataSheet4U.com 00577704 FIGURE 1. www.national.com 2 DS1489/DS1489A Absolute Maximum Ratings (Note 2) If Military/Aerospace specified devices are required, please contact the National Semiconductor Sales Office/ Distributors for availability and specifications. Power Supply Voltage Input Voltage Range Output Load Current Power Dissipation (Note 3) Operating Temperature Range Storage Temperature Range 10V Maxim...