8 Bit Magnitude Comparator Logic Diagram. The number of states that a counter owns is known as its mod modulo number. The circuit design of second part is clearly illustrated in fig2.
When control signal is 00 channel d 0 will be selected which is connected with gnd for logic 0. Block diagram of n bit magnitude comparator the circuit for comparing two n bit numbers has 2n inputs 22n entries in the truth table for 2 bit numbers 4 inputs 16 rows in the truth table similarly for 3 bit numbers 6 inputs 64 rows in the truth table 2. 67 magnitude comparator.
While magnitude comparator checks for greater than less than as well as equality of the inputs and thus has 3 output terminals.
Hence a 3 bit counter is a mod 8 counter. In electronics a comparator is a device that compares two voltages or currents and outputs a digital signal indicating which is larger. From the above truth. 3 bit magnitude comparator applications of comparator circuit.