Electronics > Lab Report > DLD LAB EXP 05(Design of a 1 bit comparator block using basic gates and design of n bit comparator u (All)

DLD LAB EXP 05(Design of a 1 bit comparator block using basic gates and design of n bit comparator u

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Title: Design of a 1 bit comparator block using basic gates and design of n bit comparator using 1 bit comparator block. Abstract: A digital comparator or magnitude comparator is a hardware electr ... onic device that takes two numbers as input in binary form and determines whether one number is greater than, less than or equal to the other number. Comparators are used in central processing units (CPUs) and microcontrollers (MCUs). Examples of digital comparator include the CMOS 4063 and 4585 and the TTL 7485 and. Comparators are one of the basic parts of digital electronics. First we studied about the design of a comparator block and its condition for output. Then we implemented a 1 bit and 2 bit comparator block using basic gates and comparator IC. The main objective of this experiment is to learn the design and behavior of Comparator circuits. Theory: Magnitude Comparators are combinational logic circuits that take 2 sets of data as its inputs and tests whether the value represented by one binary word is greater than, less than, or equal to the value represented by another binary word. Fig.1: Block Diagram of 1 Bit Magnitude Comparator Depending on the input combination for a 1-bit magnitude comparator, following behavior table can be developed using the logic expressions A=B if, A=B=0 or A=B=1 A>B if A=1 and B=0 A<B if A=0 and B=1 A B A=B A>B A<B 0 0 1 0 0 0 1 0 0 1 1 0 0 1 0 1 1 1 0 0 The SOP expressions for the output lines can be written as [Show More]

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