The document proposes a new circuit design for fast XOR-XNOR operations that uses 8 transistors, consumes less power, and has less time delay than the typical 10-transistor design. It also removes the skewed output problem and is more noise tolerant. The document compares the key metrics of the earlier and proposed circuits, such as number of transistors, power dissipation, delays, and noise immunity. It concludes the proposed circuit may be well-suited for low voltage applications and fast arithmetic due to its potential for lower power consumption, higher speed, and greater noise immunity.

1. Proposed circuit for fast XOR-XNOR operations Presented by:Ila Sharma(102001) Harsh Magotra (102012)

2. Introduction to our Idea Considering the earlier designs for XOR-XNOR CIRCUIT, we are introducing an idea to make the circuit more fast, noise immune, low voltage consuming…… so we have come with a circuit having less no. of CMOS and posses all the above said features.

3. What is XOR GATE?

4. What is XNOR gate?

5. XOR CircuitVDDababXOR gate using CMOS

6. XNOR CircuitVDDbaabXNOR using CMOS

7. Primitive XOR-XNOR CIRCUITThis circuit mostly find use in design of multipliers, comparators, converters..etc.

8. Have 10 transistors

9. Consume more power

10. More time delay

11. Skewed outputProposed XOR-XNOR CIRCUIT-Have 8 transistors-Consume LESS power-LESS time delay-REMOVES Skewed output problem-More noise tolerant

12. Individual units of proposed XOR-XNOR circuit

13. Comparison between the two Earlier circuitProposed circuitXOR CircuitVDDabab

14. XNOR CircuitVDDbaabEarlier circuit Proposed circuit

15. Design metricsHow to evaluate the performance of the circuit???CostSpeedPower dissipationDelays Noise tolerance

16. Noise tolerancewe use the noise immunity curves, NIC to measure the noise-tolerance of XOR-XNOR circuits.The noise immunity curve ,NIC of a digital gate is a locus of points (Tn, Vn) for which the gate just makes a logic error.The higher the NIC of a gate, the less susceptible is the gate to noise.

17. conclusionA new XOR-XNOR circuit implementation has been proposed and it seems that our proposal may be particularly suited for low voltage requirements. From our point of view the most important output of the described proposal is emerging hope that proposed circuit would find use in fast arithmetic operations and will be more noise immune.

18. Thank you…………