Recent questions tagged adder

Two unsigned $2$-bit numbers $A_1A_0$ and $B_1B_0$ are added with no input carry. Which implementation and equations are correct?LSB uses half adder: $S_0=A_0\oplus B_0$,...

For a full adder with inputs $A$, $B$, and $C_{in}$, for which input combinations are $S=0$ and $C_{out}=1$?$000,111$ $011,101,110$ $001,010,100$ $011,101,111$

A full adder is implemented using two half adders and one OR gate. The first half adder takes inputs $A$ and $B$. The second half adder takes the first sum output and $C_...

What is the advantage of using a full adder over a half adder in binary addition?A full adder does not require a carry-in input.A full adder can add two $4$-bit numbers.A...

Which of the following circuits come under the class of combinational logic circuits?Full adderFull subtracterHalf adderJ-K flipCounterSelect the correct answer from the ...

The number of full and half-adders required to add $32$-bit numbers is______________________

How to calculate the third option?

A 4-bit carry lookahead adder adds two 4-bit numbers. The adder is designed without making use of the EX-OR gates. The propagation delay for all gates is given as 2.4 tim...

If $A$ and $B$ are the inputs to a half adder, a half subtractor. $X$ and $Y$ are the Sum and Difference and $\mathrm{C}$ is a Carry of a Half adder and $D$ is a borrow o...

The number of full and half-adders required to add $16$-bit numbers is :$8$ half-adders, $8$ full-adders$1$ half-adders, $15$ full-adders$16$ half-adders, $0$ full-adders...

In which of the following adder circuits, the carry look ripple delay is eliminated?Half adderFull adderParallel adderCarry-look ahead adder

How many inputs are required in Full Adder Circuit?$2$$3$More than two inputsNone of the above

A half-adder is also known as :$\text{AND}$ Circuit$\text{NAND}$ Circuit$\text{NOR}$ Circuit$\text{EX-OR}$ Circuit

In a $8$-bit ripple carry adder using identical full adders, each full adder takes $34$ ns for computing sum. If the time taken for $8$-bit addition is $90$ ns, find time...

How many Unused Combinations are there in BCD adder?

Assume that the EXCLUSIVE-OR gate has a propagation delay of 20ns and that the AND and OR gates have a Propagation delay of 10ns. What is the total Propagation delay time...