HD26LS32
HD26LS32 is Quadruple Differential Line Receivers manufactured by Hitachi Semiconductor.
Description
The HD26LS32 features quadruple line receivers designed to meet the specs of EIA standard RS-422A and RS-423. This device operates from a single 5 V power supply. The enable function is mon to all four receivers and offers a choice of active high or active low input. Fail safe design ensures that if the inputs are open, the outputs will always be high.
Logic Diagram
1A 1B 2A 2B 3A 3B 4A 4B Enable G Enable G 1Y
2Y
3Y
4Y
Pin Arrangement
1B 1 1A 2 1Y 3 Enable G 4 2Y 5 2A 6 2B 7 GND 8
16 VCC 15 4B 14 4A 13 4Y 12 Enable G 11 3Y 10 3A 9 3B
(Top view)
Function Table
Differential Input A- B VID ≥ VTH VTL < VID < VTH VID ≤ VTL X H L X ? Z : : : : : High level Low level Immaterial Irrelevant High impedance Enable G H X H X H X L G X L X L X L H Output Y H H ? ? L L Z
Absolute Maximum Ratings
Item Supply Voltage In Phase Input Voltage Differential Input Voltage Enable Input Voltage Output Sink Current Continuous Total Dissipation Operating Temperature Range Storage Temperature Range Symbol VCC- VIC VID- VIN Iout PT Topr Tstg
2 1
Ratings 7.0 ±25 ±25 7 50 1 0 to +70
- 65 to 150
Unit V V V V m A W °C °C
Notes: 1. All voltage values except for differential input voltage are with respect to network ground terminal. 2. Differential input voltage is measured at the noninverting input with respect to the corresponding inverting onput. 3. 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 In Phase Input Voltage Output Current Symbol VCC VIC I OH I OL Operating Temperature Topr Min 4.75
- -
- 0 Typ 5.00
- -
- - Max 5.25 ±7.0
- 440 8 70 Unit V V µA m A °C
Electrical Characteristics (Ta = 0 to +70°C)
Item Differential Input High Threshold Voltage Differential Input Low Threshold Voltage Input Hysteresis- 2 Enable Input Voltage Symbol VTH VTL Min
- -
- VTH
- VTL
- VIH VIL Enable Input Clamp...