29050H

HD29050 www.DataSheet4U.com Dual Differential Line Drivers / ReceiversWith 3 State Outputs The HD29050 features differential line drivers / receivers with three state output designed to meet the spec of EIA RS – 422A and 423A. Each device has two drivers / receivers in a 16 pin package. The device becomes in enable state when active high for a driver and active low for a receiver. Pin Arrangement R1B R1A R1Y 1 2 3 16 VCC 15 D1A 14 D1Y 13 D1Z 12 D Enable 11 D2Z 10 D2Y 9 (Top View) D2A R 4 Enable R2Y 5 6 7 8 www.DataSheet4U.com Features Driver R2A R2B GND Built in current restriction when short circuit Power up / down protection. High output current I OH = –40 mA IOL = 40 mA Receiver Input hysteresis (Typ. 50 mV) In phase input voltage ±200 mV of input sensitivity in the range –7 to +12 V. Function Table Drivers Input A L H X Enable H H L Output Y L H Z Receivers Differential Input A – B VID ≥ 0.2 V –0.2 V < V ID < 0.2 V VID ≤ –0.2 V X H L Z X ? : : : : : High level Low level High impedance Immaterial Irrelevant Enable L L L H Output Y H ? L Z Output Z H L Z www.DataSheet4U.com HD29050 www.DataSheet4U.com HD29050 Absolute Maximum Ratings Item Supply Voltage *1 *3 *2 *3 Symbol VCC VIN VID IO VIE VIN *4 *5 Ratings 7 ±25 ±25 50 5.5 5.5 –1.0 to 7.0 0 to 70 –65 to 150 Unit V V V mA V V V °C °C Input Voltage A , B Output Current Input Voltage *3 Differential Input Voltage Enable Input Voltage *4 Output Applied Voltage VO Topr Tstg Operating Temperature ...