HD26C31 Datasheet | Hitachi Semiconductor

Description The HD26C31 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 20 m A. Features - - - - - - - - - - TTL input patibility Propagation delay time: 6 ns typ Output to output skew: 0.5 ns typ High output impedance in power off conditions Meets EIA standard RS-422A Operates from a single 5 V supply Three state outputs Low power dissipation with CMOS process Power up and power down protection Pin to pin patible with 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 G X X L L H Outputs Y H L H L Z Z L H L H Z Absolute Maximum Ratings (Ta = 25°C) Item Supply Voltage- Input Voltage Output Voltage Power Dissipation Storage Temperature Range Lead Temperature- Output Current Supply Current 3 2 Symbol VCC VIN VOUT PT Tstg Tlead I OUT I CC Ratings - 0.5 to 7.0 - 1.5 to VCC +1.5 - 0.5 to VCC +0.5 500 - 65 to 150 260 ±150 ±150 Unit V V V m W °C °C m A m A Notes: 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. 2. The values is defined as of ground terminal. 3. The values at 1.6 mm away from the package within 10 second, when soldering. Remended Operating Conditions (Ta = - 40°C to +85°C) Item Supply Voltage Input Voltage Output Voltage Operating Temperature Input Rise/Fall Time- Note: Symbol VCC VIN VOUT Ta t r, t f Min 4.5 0 0 - 40 - Typ 5.0 - - 25 - Max 5.5 VCC VCC 85 500 Unit V V V °C ns 1. This guarantees maximum limit when one input...