74LVQ157SC Low-Voltage Quad 2-Input Multiplexer with Common Enable Function from Fairchild/ON Semiconductor The 74LVQ157SC is a low-voltage quad 2-input multiplexer with a common enable function. It is designed for use in a variety of applications, including communication systems, data processing systems, and industrial control systems.

The 74LVQ157SC has four Select inputs (S0, S1, S2, and S3) that are used to select one of the four data inputs (A0, A1, B0, and B1) to be routed to the output (Y). The common enable input (EN) controls whether any data is routed to the output. If EN is LOW, then the output of the 74LVQ157SC is forced to LOW. If EN is HIGH, then the data input selected by the Select inputs is routed to the output.

The 74LVQ157SC is available in a variety of packages, including a 16-pin SOIC package and a 16-pin TSSOP package. It is also available in a variety of temperature ranges, including a commercial temperature range (0°C to 70°C) and an industrial temperature range (-40°C to 85°C).

Features

Low-voltage operation (3.3 V VCC) High-speed operation (tPD = 5.5 ns) Low power consumption (ICC = 15 µA) Wide temperature range (-40°C to 85°C) Available in a variety of packages (16-pin SOIC, 16-pin TSSOP) Applications

Communication systems Data processing systems Industrial control systems Multiplexing and demultiplexing of data signals Signal routing and selection Data bus switching Block Diagram

The following block diagram shows the internal structure of the 74LVQ157SC:

[Block diagram of the 74LVQ157SC]

Truth Table

The following truth table shows the relationship between the Select inputs, the data inputs, the enable input, and the output of the 74LVQ157SC:

Applications

The 74LVQ157SC can be used in a variety of applications