Implementation of LFSR Counter Using CMOS VLSI Technology

CMOS stands for Complementary Metal Oxide Semiconductor. It is basically a class of integrated circuits, and is used in a range of applications with digital logic circuits, such as microprocessors, microcontrollers, static RAM, etc. It is also used in applications with analogue circuits, such as in data converters, image sensors, etc. There are quite a few advantages that the CMOS technology has to offer. One of the main advantage that CMOS technology, which makes it the most commonly-used technology for digital circuits today, is the fact that it enables chips that are small in size to have features like high operating speeds and efficient usage of energy. Besides, they have very low static power supply drain most of the time. Besides, devices using CMOS technology also have a high degree of noise immunity. This paper presents the implementation of a LFSR (Linear Feedback Shift Register) counter using the recent CMOS sub-micrometer layout tools. Adding to the advantage of CMOS technology, the LFSR counter can be used as a new trend setter in cryptography and can also be beneficial when compared to GRAY & BINARY counter while not forgetting the variety of other applications LFSR counter has.