Differential Driver And Receiver Pair

The SN65ALS180 and SN75ALS180 differential driver

and receiver pairs are integrated circuits

designed for bidirectional data communication on

multipoint bus-transmission lines. The devices are

designed for balanced transmission lines and meet

TIA/EIA-422-B, TIA/EIA-485-A, and ITU

Recommendation V.11.

The SN65ALS180 and

SN75ALS180 combine a 3-state differential line driver and a

differential input line receiver, both of which operate from

a single 5-V power supply. The driver and receiver have

active-high and active-low enables, respectively, that can

be connected together externally to function as a direction

control. The driver differential outputs and the receiver

differential inputs are connected to separate terminals for

greater flexibility and are designed to offer minimum

loading to the bus when the driver is disabled or

VCC = 0.

These ports feature

wide positive and negative common-mode voltage ranges,

making the device an excellent choice for party-line

applications.