Trudiogmor: 8 Bit 4 Bit Comparator Truth Table

8 Bit 4 Bit Comparator Truth Table

When a0 b0 00 11 both inputs are equal therefore ab output will be high. It consists of eight inputs each for two four bit numbers and three outputs to generate less than equal to and greater than between two binary numbers.

74fct521t 8 Bit Identity Comparator Renesas

You may notice two distinct features about the comparator from the above truth table.

8 bit 4 bit comparator truth table. More than one comparator can also be connected in cascade arrangement to perform comparison of long numbers. 4 bit magnitude comparator a comparator used to compare two binary numbers each of four bits is called a 4 bit magnitude comparator. Combinational logic circuit 4 bit and 8 bit magnitude comparators learn electronics by watching how circuit works in simulation software used for simulation is proteus 74 want to watch some more.

Two distinct features about the comparator can be noticed from the above truth table. From the truth table logical expressions for each output can be expressed as by using these boolean expressions. When a0 b0 01 b is more than a and hence ab is active.

The three 1 bit output signals are a b a b and a b. Firstly the circuit does not distinguish between either two 0 or two 1s as an output a b is produced when they are both equal either a b 0 or a b 1. So we will do things a bit differently here.

Secondly the output condition for a b resembles. Firstly the circuit does not distinguish between either two 0 or two 1s as an output a b is produced when they are both equal either a b 0 or a b 1. 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.

The truth table for the single bit comparator is given below. The truth table for a 4 bit comparator would have 44 256 rows. The truth table followed by the magnitude comparator is shown in figure 2.

A digital comparator can be 4 bit 8 bit 16 bit 32 bit or 64 bit system depending upon it compares 4 bit 8 bit 16 bit 32 bit or 64 bit numbers respectively. A and b are the two 8 bit input signals to the comparator which compares the magnitude of these the two signals.

Truth Table For 2 Bit Magnitude Comparator Electronics Coach