How to build circuits using CMOS logic

I have been telling you for a while now that majority of the digital VLSI circuits is made using CMOS logic. It has been so long that CMOS is adopted as the basic method of building VLSI circuits and evidently it is going to last longer. So in this post I'll explain how a CMOS circuit operates, How...

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Half adder and Half subtractor explained

Addition and subtraction are two very basic operations. In digital systems the data path and sometimes the control path contains both adder and subtractor. In this article I'll try to clearly explain their operation, design and where do we use them. Half adder There are basically two types of adders...

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Pass transistor DC characteristics

Most of the logic in digital VLSI circuits is made using CMOS logic because of its low power consumption, high fanout. But there are some circuits which are made using other logics like pass transistor logic, dynamic CMOS logic etc. Though these comprise a small part of the  VLSI circuit it is...

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CMOS Inverter Voltage Transfer Characteristics

To design a digital VLSI circuit one need to have a very good understanding of the basic CMOS inverter. Once you understand the properties and operation of an inverter then we can extend the concepts to understand any other logic gate. So it is very important to have a clear idea of CMOS inverter voltage...

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Analog VLSI Vs Digital VLSI

VLSI is the current trend of manufacturing electronic integrated circuits. As we know that there are two divisions of electronic circuits(analog and digital) VLSI also have this division. In this article we will have a brief introduction about VLSI and then explain the differences between Analog VLSI...

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Combinational circuit Vs Sequential circuits

Digital circuits are basically divided into two types, viz. combinational circuits and sequential circuits. Almost all the digital systems use both of these circuits. Both these classes of circuits have properties different from eachother while there are some similarities also. To design a digital...

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What,why and where of Digital VLSI circuits.

Today's electronics is completely filled with digital components and we call this "The Digital age". No matter what is the area of application, digital devices have their share. Major part of electronics is now digital. Earlier there were analog computers and they have been removed from the face...

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Digital Design

To master VLSI design the very first thing to understand is the basic building blocks of digital design. Once the building blocks are known and well understood, anybody can design a system for the given specifications. This section takes you through the building blocks first, then...

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