# comparator logic diagram and truth table

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Digital parator and Magnitude parator Electronics Hub The figure below shows the block diagram of a single bit magnitude comparator. This comparator compares the two bits and produces one of the 3 outputs as L (AB). The truth table for the single bit comparator is given below. When A0 B0 = 00 & 11, both inputs are equal, therefore A=B output will be high. parator – Designing 1 bit, 2 bit and 4 bit comparators ... Logic circuit of a 2 bit comparator How to design a 4–bit comparator? The truth table for a 4 bit comparator would have 4^4 = 256 rows. So we will do things a bit differently here. We will compare each bit of the two 4 bit numbers and based on that comparison and the weight of their positions we will draft a truth table. Digital parator and Magnitude parator Tutorial The Digital parator is another very useful combinational logic circuit used to compare the value of two binary digits. Digital or Binary parators are made up from standard AND, ... You may notice two distinct features about the comparator from the above truth table. 2 Bit Magnitude parator Design Using Different Logic Styles According to logic function obtained from truth table, logic diagram is drawn as in Fig.2: Figure 2. Logic Diagram of 2 Bit Magnitude parator 3. 2 BIT MAGNITUDE COMPARATOR DESIGN USING DIFFERENT LOGIC STYLES 3.1. Using CMOS Logic Style Fig.3 (a) represents symbol of CMOS Inverter. It consists of one NMOS & one PMOS transistor. Magnitude parator | Truth Table | Implementation of design For a 2 bit comparator we have four inputs A1A0 and B1B0 and three output E ( is 1 if two numbers are equal) G (is 1 when A greater than B) and L (is 1 when A less than B) If we use truth table ... Digital logic | Magnitude parator GeeksforGeeks 2 Bit Magnitude parator – A comparator used to compare two binary numbers each of two bits is called a 2 bit Magnitude comparator. It consists of four inputs and three outputs to generate less than, equal to and greater than between two binary numbers. The truth table for a 2 bit comparator is given below: Truth Table Generator web.stanford.edu Truth Table Generator This tool generates truth tables for propositional logic formulas. You can enter logical operators in several different formats. For example, the propositional formula p ∧ q → ¬r could be written as p \ q > ~r, as p and q => not r, or as p && q > !r. The connectives ⊤ and ⊥ can be entered as T and F 4 BIT MAGNITUDE COMPARATOR Digi Key comparator designed for use in computer and logic applications that require the comparison of two 4 bit words. This logic circuit determines ... FUNCTIONAL DIAGRAM TRUTH TABLE X : Don’t Care PIN No SYMBOL NAME AND FUNCTION 10, 12, 13, 15 A0 to A3 Word A Inputs 9, 11, 14, 1 B0 to B3 Word B Inputs 5, 6 ,7 MM74HC688 8 Bit Magnitude parator (Equality Detector) MM74HC688 8 Bit Magnitude parator (Equality Detector) ... Truth Table Logic Diagram Order Number Package Number Package Description MM74HC688WM M20B 20 Lead Small Outline Integrated Circuit (SOIC), JEDEC MS 013, 0.300” Wide ... MM74HC688 8 Bit Magnitude parator (Equality Detector) LIFE SUPPORT POLICY Logic Gates and Truth Table CSETutor Logic gates and truth table: In digital electronics, logic gates are the certain type of physical devices basically used to express the Boolean functions.The truth table is a tabular representation of a logical expression. It shows the outputs generated from various combinations of input values.