SN55116, SN75116, THRU SN75119 DIFFERENTIAL LINE TRANSCEIVERS

SLLS073B - MAY 1976 - REVISED MAY 1995

features

features common to all types additional features of the SN55116/SN75116

• Single 5-V Supply
• 3-State Driver Output Circuitry
• TTL-Compatible Driver Inputs
• TTL-Compatible Receiver Output
• Differential Line Operation
• Receiver Output Strobe ('116, SN75117) or Enable (SN75118, SN75119)
• Designed for Party-Line (Data-Bus) Applications
• Choice of Ceramic or Plastic Packages
• 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

additional features of the SN75117

• Driver Output internally Connected to Receiver Input

description

These integrated circuits are designed for use in interfacing between TTL-type digital systems and differential data-transmission lines. They are especially useful for party-line (data-bus) applications. Each of these circuit types combine 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/SN75113 3-state line driver, and the receiver is similar to the SN55115/SN75115 line receiver.

The '116 and SN75118 circuits offer all the features of the SN55113/SN75113 driver and the SN55115/SN75115 receiver 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-sink 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, of using the driver in the normal totem-pole output configuration.

The receiver portion of the '116 and SN75118 features a differential input circuit having a common-mode voltage range of ±15 V. An internal 130- resistor is also provided, which may optionally be used for terminating 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 '116 also has an output strobe and a split totem-pole output. The receiver of the SN75118 has an output-enable for the 3-state split totem-pole output. The receiver section of either circuit is independent of the driver section except for the V_CC and ground terminals.

The SN75117 and SN75119 circuits provide the basic driver and receiver functions of the '116 and SN75118, but use a package that is only half as large. The SN75117 and SN75119 are intended primarily for party-line or bus-organized systems as the driver outputs are internally connected to the receiver inputs. The driver has a single data input and a single enable input, and the SN75117 receiver has an output strobe while the SN75119 receiver has a 3-state-output enable. These devices do not, however, provide output connection options, line termination resistors, or receiver frequency-response controls.

The SN55116 is characterized for operation over the full military temperature range of -55°C to 125°C. The SN75116, SN75117, SN75118, and SN75119 are characterized for operation from 0°C to 70°C.

View more information about generic part numbers:SN75117, SN75119

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