SN74AS158N

Series:	74AS
Packaging:	Tube
Part Status:	Active
Type:	Multiplexer
Circuit:	4 x 2:1
Independent Circuits:	1
Current - Output High, Low:	400µA, 8mA
Voltage Supply Source:	Single Supply
Voltage - Supply:	4.5 V ~ 5.5 V
Operating Temperature:	0°C ~ 70°C
Mounting Type:	Through Hole
Package / Case:	16-DIP (0.300", 7.62mm)
Supplier Device Package:	16-PDIP
Base Part Number:	74AS158

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Introduction

The SN74AS158N is a dual 4-to-1 multiplexer intended for use in wide variety of logic and signal switching applications. The device features two independent 4-channel multiplexers, two select inputs (S1, S2), and two outputs (Y1, Y2). The SN74AS158N can be used to switch two buses simultaneously while minimizing the device count and providing a compact package. It is also capable of routing two data sources between two data destinations using a single chip.

Application Field

The SN74AS158N is commonly used in a wide range of digital and mixed-signal applications, such as digital control systems, computers, and communication systems. It can also be used to switch a variety of logic and signal signals, such as voltages, current, frequency signals and pulses. Furthermore, the device can be used as a data selector in data acquisition systems and other logic applications.

Working Principle

The SN74AS158N is composed of two 4-channel multiplexers connected in a dual-input/dual-output configuration. Both multiplexers share two common control signals (S1, S2) which are used to select the active input line. Each multiplexer has four input lines (A0-A3 and B0-B3) and an output (Y1 and Y2). The active input line is determined by the selection signals S1 and S2. Each multiplexer features a low-skew outputs which ensures precise data transfer between the two buses.

Conclusion

The SN74AS158N is an essential device in various applications. It provides a viable alternative to using multiple devices for controlling multiple signals. The device is simple to use and understand, and can easily be used for a variety of projects. Its efficiency, wide use, simplicity and low power consumption make it an excellent choice for logic and signal switching applications.

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