HD26LS31
HD26LS31 is Quadruple Differential Line Drivers manufactured by Hitachi Semiconductor.
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 m A.
Logic Diagram
1A 1Y 1Z 2Y 2Z 3Y 3Z 4Y 4Z
2A
3A 4A Enable G Enable G
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
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.
Remended 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 m A m A
- Application Terminal VCC All Output All Output
- 3
Electrical Characteristics (Ta = 0 to +70°C)
Item Input Voltage Symbol VIH VIL Input Clamp Voltage VIK Output Voltage VOH VOH VOL Output Current I OZL I OZH Input Current II I IH I IL Short Circuit Output I OS- Current Supply Current I CC
Min 2.0
- - 2.5
- -
- -
- -
- - 30
- Typ- 1 Max
- -
- -
- -
- -
- -
- - 32
-...
