DS96177 Datasheet | National Semiconductor

Description The DS96177 Differential Bus Repeater is a monolithic integrated device designed for one-way data munication on multipoint bus transmission lines. This device is designed for balanced transmission bus line applications and meets EIA Standard RS-485 and RS-422A. The device is designed to improve the performance of the data munication over long bus lines. The DS96177 has an active high Enable. The DS96177 features positive and negative current limiting and TRI-STATE ® outputs for the receiver and driver. The receiver features high input impedance, input hysteresis for increased noise immunity, and input sensitivity of 200 m V over a mon mode input voltage range of - 12V to +12V. The driver features thermal shutdown for protection from line fault conditions. Thermal shutdown is designed to occur at a junction temperature of approximately 160˚C. The driver is designed to drive current loads up to 60 m A maximum. The DS96177 is designed for optimum performance when used on transmission buses employing the DS96172 and DS96174 differential line drivers, DS96173 and DS96175 differential line receivers, or DS96176 differential bus transceivers. Features n Meets EIA Standard RS-422A and RS-485 n Designed for multipoint transmission on long bus lines in noisy environments n TRI-STATE outputs n Bus voltage range - 7.0V to +12V n Positive and negative current limiting n Driver output capability ± 60 m A max n Driver thermal shutdown protection n Receiver input high impedance n Receiver input sensitivity of ± 200 m V n Receiver input hysteresis of 50 m V typical n Operates from single 5.0V supply n Low power requirements Connection Diagram 8-Lead Dual-In-Line Package Function Table Differential Inputs A- B VID ≥ 0.2V VID ≤ - 0.2V X Enable E H H L T H L Z Outputs Y H L Z Z L H Z DS009644-1 Note: T is an output pin only, monitoring the BUS (RO). H = High Level L = Low Level X = Immaterial Z = High Impedance (off) Top View Order Number DS96177CN See NS Package Number...