![]() Therefore, a sequential logic circuit is one whose output depends on the present inputs as well as past outputs. What is a Sequential Logic Circuit?Ī sequential logic circuit is another type of time-dependent digital circuit having a memory element to store the history of the past operation of the circuit. Thus, combinational circuits do not have a memory element, whereas sequential circuits have a memory element which is the main difference between combinational and sequential circuits. Examples of combinational logic circuits include binary adders, binary subtractors, multiplexers, data comparators, etc. Therefore, the output of the combinational logic circuit is the function of the inputs at that time.Ĭombinational logic circuits are widely used in various digital systems to perform various operations like arithmetic operations, data transmission, code conversion, and more. The block diagram representation of a combination logic circuit is depicted in the following figure.Ī combinational logic circuit has only a processing circuit and does not have any storing circuit. ![]() ![]() A combinational logic circuit is designed by using different types of logic gates like AND, NAND, NOR, OR, etc. What is a Combinational Logic Circuit?Ī type of digital time-independent logic circuit in which the output depends on the present inputs only and not on the past operation of the circuit is called a combinational logic circuit. In this article, we will discuss combinational logic circuits and sequential logic circuits along with their comparative study. The main difference between combination and sequential logic circuits is that a combinational logic circuit does not contain any memory element, while a sequential logic circuit necessarily contains a memory element to store past history of the circuit operation. In digital electronics, logic circuits are classified into two categories namely, combinational logic circuits and sequential logic circuits.
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