SN74LS139ADRE4

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Logic-Signal Switches, Multiplexers, and Decoders are important components within digital systems. They are used to route signals from one component to another within the system, as well as between subsystems. As an example, they can also be used to select between multiple different channels or route a signal to a specific output. The SN74LS139ADRE4, which is a Logic-Signal Switch, Multiplexer, and Decoder manufactured by Texas Instruments, is an example of this type of component which serves two primary functions. The first is to provide address decoding, which allows multiple signals to be routed to a specific output, usually based on the address of the input signal. The second is to provide de-multiplexing, which separates a single signal into multiple parallel lines that can then be further routed within the system.

The SN74LS139ADRE4 is a dual one-of-four line-select multiplexer which is composed of a decoder and two 4-input AND gates. It features two control inputs A and B, four data inputs D0 through D3, and four output lines Y0 through Y3. The control inputs determine which of the four data inputs will be routed out to the output lines. When both A and B inputs have a low voltage, the D0 input will be routed out to Y0. Similarly, when A has a low voltage and B has a high voltage, the D1 input will be routed out to Y1, and so on. The SN74LS139ADRE4 operates on both 3 and 5 volt power supplies and typically dissipates less than 72mW of power at room temperature.

The SN74LS139ADRE4 is a versatile device that can be used for a variety of applications. It can be used for memory decoding and address selection in digital systems which require three or more address lines. This allows multiple signals to be routed efficiently from a single address line. It can also be used for file access in word processors and other digital systems which are looking for a specific segment of code to execute. With its low power dissipation and inherent logic functionality, the SN74LS139ADRE4 is an ideal choice for these and many other types of applications.

The SN74LS139ADRE4 is an ideal choice for multiplexing and decoding applications which require two control inputs and four data inputs. Its low power consumption, versatility, and ease of implementation make it an excellent choice for a variety of systems. With its combination of logic and switching capabilities, the SN74LS139ADRE4 is well suited for applications which require both address decoding and de-multiplexing functions.

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