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

Compressibility fluid -aircraft maintenance, Compressibility Fluid: Com...

Compressibility Fluid: Compressible fluid flow refers to the air flow through a gas turbine engine and, because the air is compressible, flow at subsonic speeds causes a change

Couplings in engine, Couplings: Because of the requirement to make main...

Couplings: Because of the requirement to make maintenance tasks such as engine removal/refit, gearbox removal/refit easier, it is necessary to have a means of coupling the turb

Water traetment, what are the different phosphates used in water treatment?...

what are the different phosphates used in water treatment?

Turbo shaft engines - aircraft engine , Turbo shaft engines : Gas turbi...

Turbo shaft engines : Gas turbine engines that deliver power through a shaft to operate something other than a propeller are referred to as turboshaft engines. In most cases th

Heat capacity, Specific heat capacity of water in a continues flow method?

Specific heat capacity of water in a continues flow method?

Gated pattern, Gated pattern is used to produce good casting. It is esse...

Gated pattern is used to produce good casting. It is essential to make sure that full supply of molten metal flow into every part of the mould. Provision for easy passage of the

Wireless sensor networks, can we construct a body area sensor network in ma...

can we construct a body area sensor network in matlab as in ns-2.

Maintenance of aircraft under “b” conditions, Maintenance of Aircraft under...

Maintenance of Aircraft under “B” conditions:   The maintenance of aircraft flying under "B" conditions must be adequate in relation to the number and duration of the flight

Function generator, Expertsmind.com brings you unique solution in electri...

Expertsmind.com brings you unique solution in electrical engineering   What is a function generator? A function generator is a part of electronic device that prod

Specific air range & specific endurance , Specific Air Range & Specific End...

Specific Air Range & Specific Endurance  Key cruise parameters are Range (distance flown) and Endurance (time of flight). It is important to be able to relate these to the amou

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