Bcd Adder Circuit. The three digits are the augend addend and carry input bits. One more 4 bit adder to add 0110 2 in the sum if sum is greater than 9 or carry is 1.
Using these three input bits the circuit produces the sum and the carry output bits as its output signals. As maximum number in bcd is 9 and may be there will be a carry from previous stage also so 9 9 1 19. It is also known as decimal adder.
The circuit performs the function of adding three binary digits.
It has also input of carry. It is also known as decimal adder. Here to get the output in bcd form we will use bcd adder. The circuit performs the function of adding three binary digits.