Read this article to learn how you can implement a two-variable Boolean function using a 4:1 multiplexer. Let's start with a brief introduction of two-variable Boolean functions and multiplexers. What is a Two-Variable Boolean Function? A two variable Boolean function is a logical expression which has two input variables. Where, each variable can take either a binary 0 or a binary 1 as its value. A two variable Boolean function can have 4 possible combinations of variables, i.e. in SOP form, $\bar{A}\bar{B}, \bar{A} B, A \bar{B}, AB, $ with minterm designations m0, m1, m2, and m3. In POS form, $(A+B), ... Read More

Karnaugh Map (K-Map) K-Map is a graphical tool used for simplifying Boolean expressions represented in their standard form to obtain their minimal form. The K-Map is basically a graph or chart that composed of an arrangement of adjacent cells or squares, where each cell represents a particular combination of variables of the function either in sum or product form. The number of cells in the K-Map depends upon number of variables in the Boolean function, i.e., K-map has 2n adjacent cells, where n is the number of variables in the Boolean expression. Therefore, the number of cells in a 2 ... Read More

A multiplexer or MUX is a combinational circuit that accepts several data inputs and allows only one of them to flow through the output line. Multiplexer (MUX) is also known as data selector because it selects one from many. A MUX consists of 2n data input lines, n select lines, and 1 output line. Since, it converts 2n input lines into 1 output line. Therefore, it is also called many-to-one device. Depending upon the number of input lines, there are several types of multiplexer present such as 2:1 MUX, 4:1 MUX, 8:1 MUX, etc. As this article is primarily meant ... Read More

A multiplexer or MUX is a combinational circuit that accepts several data inputs and allows only one of them to flow through the output line. Multiplexer (MUX) is also known as data selector because it selects one from many. A MUX consists of 2n data input lines, n select lines, and 1 output line. Since, it converts 2n input lines into 1 output line. Therefore, it is also called many-to-one device. Depending upon the number of input lines, there are several types of multiplexer present such as 2:1 MUX, 4:1 MUX, 8:1 MUX, etc. Since, this article is meant for ... Read More

Let' start this article with some basics of NOT gates and multiplexers. What is a Multiplexer? In digital electronics, a multiplexer or MUX is a combinational logic circuit which accepts several data inputs and allows only one of them at a time to flow through the output line. Multiplexer (MUX) is also known as data selector because it selects one from many. A multiplexer consists of 2n data input lines, n select lines, and 1 output line. Since, it converts 2n input lines into 1 output line. Therefore, it is also called many-to-one device. Depending upon the number of input ... Read More

Let us stat this article with a brief introduction of binary adders and rules of binary addition. In digital electronics, an adder or binary adder is a combinational digital circuit which performs the addition of two or more binary digits. The binary addition of two bits is performed by following these four rules − 0 + 0 = 0 0 + 1 = 1 ... Read More

A multiplexer (MUX) is a digital combinational logic circuit that accepts multiple data inputs and allows only one of them at a time to transmit over an output channel. A multiplexer consists of 2n input lines, n select lines, and one output line. In a multiplexer, the routing of the desired data input to the output channel is done by the logic level applied to the select lines. The functional block diagram of a multiplexer is shown in Figure-1. This article is primarily meant for explaining the design procedure of different types of multiplexer circuits. More specifically, here we ... Read More

Read this article to learn how you can use a multiplexer to realize universal logic gates. Let us start with a brief introduction to multiplexers and universal logic gates. What is a Multiplexer? A Multiplexer or MUX or Data Selector is a combinational logic circuit which accepts several data inputs and allows only one of them at a time to pass through the output channel. The block diagram of a multiplexer is shown in Figure-1. A multiplexer consists 2n data input lines, n select lines, and only one output line. The logic level applied to the select lines determine ... Read More

Electrical analogue is basically a way of representing the operation of a logic gate such as OR gate, AND gate, NOT gate, etc. in the form of an electric circuit. In other words, we can represent the operation of a logic gate by using basic circuit components like battery, switches, lamps, etc. So, let us discuss the electrical analogue for each logic gate in detail. OR Gate Electrical Circuit The OR Gate is a type of logic circuit in digital electronics which may have two or more inputs but only one output. A two input OR gate is shown in ... Read More

What is a Transformer? A transformer is an electrical device whose main function is to transmit alternating current between two circuits at a constant value of frequency, but at varying voltage levels. A transformer is constructed by combining two kinds of coil. The first coil carrying the magnetic flux is called the primary coil, while the second coil placed opposite to it, in which electromotive force (E.M.F) is induced is called as the secondary coil. Figure-1 illustrates a standard representation of a transformer. Input voltage at the primary side of the transformer produces the varying magnetic flux on the primary ... Read More