Reducing power in using different technologies using FSM architecture

As in today’s date fuel consumption is important in everything from scooters to oil tankers, power consumption is a key parameter in most electronics applications. The most obvious applications for which power consumption is critical are battery-powered applications, such as home thermostats and security systems, in which the battery must last for years. Low power also leads to smaller power supplies, less expensive batteries, and enables products to be powered by signal lines (such as fire alarm wires) lowering the cost of the end-product. As a result, low power consumption has become a key parameter of microcontroller designs . The purpose of this paper is to summarize, mainly by way of examples,what in our experience are the most trustful approaches to lowpower design. In other words, our contribution should not be intended as an exhaustive survey of the existing literature on low-power esign; rather, we would like to provide insights a designer can rely upon when power consumption is a critical constraint.We will focus on the reduction of power consumption on different technologies for different values of oicapacitance and also compare power saving in technologies.