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Features

Single 5-V Supply

3-State Driver Output Circuitry

TTL-Compatible Driver Inputs

TTL-Compatible Receiver Output

Differential Line Operation

Receiver Output Strobe

Designed for Party-Line (Data-Bus)

Applications

Independent Driver and Receiver

Choice of Open-Collector or Totem-Pole

Outputs on Both Driver and Receiver

Dual Data Inputs on Driver

Optional Line-Termination Resistor in

Receiver

±15-V Receiver Common-Mode Capability

Receiver Frequency-Response Control

description

This integrated circuit is designed for use in interfacing between TTL-type digital systems and differential

data-transmission lines. It is especially useful for party-line (data-bus) applications. This circuit type combines

in one package 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 inputs and the receiver outputs are TTL compatible. The driver employed

is similar to the SN55113 and SN75113 3-state line drivers and the receiver is similar to the SN55115 and

SN75115 line receivers.

The SN55116 offers all the features of the SN55113 and SN75113 drivers and the SN55115 and SN75115

receivers combined. The driver performs the dual input AND and NAND functions when enabled or presents

a high impedance to the load when in the disabled state. The driver output stages are similar to TTL totem-pole

outputs, but have the current-sinking portion separated from the current-sourcing portion and both are brought

out to adjacent package terminals. This feature allows the user the option of using the driver in the open-collector

output configuration or, by connecting the adjacent source and sink terminals together, using the driver in the

normal totem-pole output configuration.

The receiver portion of the SN55116 features a differential-input circuit having a common-mode voltage range

of ±15 V. An internal 130-Ω equivalent resistor also is provided, which optionally can be used to terminate the

transmission line. A frequency-response control terminal allows the user to reduce the speed of the receiver

or to improve differential noise immunity. The receiver of the SN55116 has an output strobe and a split

totem-pole output. The receiver section of the circuit is independent of the driver section, except for the VCC

and ground terminals.