Logic gates, Other Engineering

Assignment Help:

Logic Gates:

The term logic in electronics refers to the representation and logical manipulation of numbers usually in a code employing two symbols. i.e., bits.

An electronic logic circuit is one whose inputs and outputs can take only one of two states. Where the output of such a circuit depends only on the present state of the input to the circuit, it is called a COMBINATIONAL LOGIC CIRCUIT.

Logic circuits may have many inputs and many outputs and be made up of a large number of elements called LOGIC GATES.

Most modern electronic logic networks are constructed from two state components in the form of integrated circuits fabricated in a single piece of pure silicon and often referred to as a CHIP. They are available as transistor-transistor logic (TTL) and complementary symmetry metal oxide semiconductor (CMOS or COSMOS) which supersede earlier resistor-transistor logic (RTL) and diode-transistor logic (DTL).

Logic circuits are most widely used in computers and calculators, but their use also extends to a wide range of control and test equipment.

2221_logic gates.png

Figure shows the logic convention.

As the 'positive logic' representation is favoured by the majority of designers and manufacturers, it is intended to adopt this representation throughout this section. Positive logic refers to the use of a 1 to represent the true or more positive level (e.g. +5v) and 0 to represent the fault, or less positive level (e.g. 0v).


Related Discussions:- Logic gates

SE, what is explicit conceptual model in SE

what is explicit conceptual model in SE

Homework, 1) An investment project requires a net investment of $100,000. T...

1) An investment project requires a net investment of $100,000. The project is expected to generate annual net cash flows of $28,000 for the next 5 years. The firm''''s cost of cap

Thrust calculation- aeronautical engineering , Thrust calculation: The ...

Thrust calculation: The amount of thrust produced depends upon two things:- The MASS of air which is moved rearwards in a given time, the ACCELERATION imparted to the air.It

Strain energy release rate , The energy release rate, often denoted by G, i...

The energy release rate, often denoted by G, is the amount of energy per unit area that is supplied by the elastic energy in the body and loading system in creating a new fracture

Various characteristics of metal powders, Q. Describe the various character...

Q. Describe the various characteristics of metal powders to be considered before their selection for any process. Ans. Metal Powder Characteristics          Both t

Accounting rate of return method, Accounting rate of return method ARR met...

Accounting rate of return method ARR method is also known as ‘Return on Investment Method’. Here accounting information as shown in the financial statement is the basis for measu

Oscilloscope probes, Direct probe,isolation probe,high impedence probe,acti...

Direct probe,isolation probe,high impedence probe,active probe,current probe

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd