Implementation of Synchronous Up/Down Counter with CMOS Technology

Abstract

It is used in this study to make a synchronous up/down counter that work quickly and doesn't use much power. The goal of this thesis is to make a counter design that work with digital systems that are already in use. It should be quick and not use a lot of power. There is a clock blocking function in the suggested system that keeps the clock signal from getting to blocks that are not being used. This means you need less physical energy. This smart clock control cuts down on the number of switches that aren't needed, which saves a lot of energy when no one is using it. Another type of FF T is built into the clock. This flip-flop is better than the ones that came before it because it can switch states more quickly and takes up less space on the chip. Furthermore, the use of T FF with the help of XOR gate and Flip Flop D enables to reduce the number of transistors as compared to other FFs. The Cadence Virtuoso EDA tool is used to test the design after it was finished. The models' findings show that the counter up/down circuit work better, faster, and with less power. A lot of different input clock rates don't change how well and regularly the counter work. Because of this, there is a small gap in connection, which helps you count correctly both going up and down. Because it's strong and doesn't take up much room, this design can be used for small, battery-powered gadgets, digital signal processors, and embedded systems. A lot of different things were used to check the idea and make sure it worked. It work really well with VLSI because it is faster, needs less power, and takes up less space. Digital circuits work better when a few simple but important changes are made to how they are built, the study found. For instance, the circuits work better when a smaller flip-flop design is used and clock gating is added. Whenever speed and power are important in real life, this kind of counter should work great. Due to the clock gating the unnecessary switching activity in the circuit stops and their is also a reduction in energy consumption. Though the proposed counter up/down consume less power as compared to conventional counters.