HD29412

HD29412 Dual Differential Line Drivers With 3 State Outputs The HD29412 features dual differential line drivers with three state outputs designed to satisfy the requirements of EIA–422. Each driver has an output control is low, the associated outputs are in a high impedance state. This permits many deviced to be connected together on the same transmission line for party line applications. Pin Arrangement NC 1Z 1Y 1A 1 2 3 4 5 6 7 (Top View) 14 13 12 11 VCC 2Z 2Y 2B Function Table 1B Input A H H L L X X www.DataSheet4U.com Output C H H H H L X D H H H H X L Y H L L L Z Z Z L H H H Z Z 1C GND 10 2A 9 8 2C D B H L H L X X : : : : H L X Z High level Low level Irrelevant High impedance HD29412 Absolute Maximum Ratings Item Supply Voltage Input Voltage Power Dissipation Operating Temperature Storage Temperature Symbol VCC *1 VIN PT Topr Tstg Ratings 7 5.5 1150 0 to + 70 –65 to + 150 HD29412 Unit V V mW °C °C Notes: 1. The values is defined as of ground terminal. 2. The absolute maximum ratings are values which must not individually be exceeded, and furthermore, no two of which may be realized at the same time. Recommended Operating Conditions Item Supply Voltage Output Current Symbol VCC IOH IOL Operating Temperature Topr 0 Min 4.75 Typ 5.00 Max 5.25 –40 40 70 Unit V mA mA °C Electrical Characteristics (Ta = 0 to +70°C) Item Input Voltage Symbol Conditions VIH VIL Input Clamp Voltage Output Voltage VIK VOH VCC = 4.75 V, II = –12 mA VCC = 4.75 V, VIL = 0.8 V VIH = 2 ...