HD29050

HD29050 Dual Differential Line Drivers/ReceiversWith 3 State Outputs ADE-205-034A (Z) 2nd. Edition Mar. 1993 Description 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. Features Driver Built in current restriction when short circuit Power up/down protection. High output current IOH = –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. HD29050 Pin Arrangement R1B 1 R1A 2 R1Y 3 R Enable 4 R2Y 5 R2A 6 R2B 7 GND 8 16 VCC 15 D1A 14 D1Y 13 D1Z 12 D Enable 11 D2Z 10 D2Y 9 D2A (Top view) Function Table Drivers Input A L H X Enable H H L Output Y L H Z H : High level L : Low level Z : High impedance X : Immaterial ? : Irrelevant Output Z H L Z...