HD26LS31

www.DataSheet4U.com HD26LS31 Quadruple Differential Line Drivers With 3 State Outputs ADE-205-576 (Z) 1st. Edition Dec. 2000 Description The HD26LS31 features quadruple differential line drivers which satisfy the requirements of EIA standard RS-422A. This device is designed to provide differential signals with high current capability on bus lines. The circuit provides enable input to control all four drivers. The output circuit has active pull up and pull down and is capable of sinking or sourcing 40 mA. Logic Diagram 1A 1Y 1Z 2Y 2Z 3Y 3Z 4Y 4Z 2A 3A 4A Enable G Enable G HD26LS31 Pin Arrangement 1A 1 1Y 2 1Z 3 Enable G 4 2Z 5 2Y 6 2A 7 GND 8 16 VCC 15 4A 14 4Y 13 4Z 12 Enable G 11 3Z 10 3Y 9 3A (Top view) Function Table Input A H L H L X H L X Z : : : : Enables G H H X X L High level Low level Irrelevant High impedance (Off) G X X L L H Outputs Y H L H L Z Z L H L H Z 2 HD26LS31 Absolute Maximum Ratings Item Supply Voltage Input Voltage Output Voltage Power Dissipation Storage Temperature Range Lead Temperature Range Note: Symbol VCC VIN VOUT PT Topr Tstg Ratings 7.0 7.0 5.5 1 0 to +70 –65 to +150 Unit V V V W °C °C 1. 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 Output Current Operating Temperature Symbol VCC I OH I OL Topr Min 4.75 — — 0 Typ 5.0 — — 25 Max 5.25 –40 40 70 Unit V mA mA — Applic...