Semiconductor & Computer Engineering
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Difference between revisions of "ideal logic gate"
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| − | An '''ideal logic gate''' is a [[logic gate]] performing operations on boolean values in an abstraction - dissipating no power and changing states instantaneously, similar to a [[step function]]. Such gates operate on [[truth value|discrete logic inputs]] and ignore most physical characteristics such as [[gate delay|propegation delay]], maximum [[fan-out]], and various other electrical characteristics. Ideal logic gates are used in a wide variety of settings since it allows a person to make key observations about [[ideal logic circuit|a particular circuit]] without diving into the full specifications. | + | [[File:ideal vs real.svg|250px|right|thumb|2 unrelated signals and a [[clock]]. Real signal takes some time to settle down at the correct output while the ideal signal always does so instantly.]] |
| + | An '''ideal logic gate''' is a [[logic gate]] performing operations on boolean values in an abstraction - [[static power dissipation|dissipating no power]] and changing states [[propagation delay|instantaneously]], similar to a [[step function]]. Such gates operate on [[truth value|discrete logic inputs]] and ignore most physical characteristics such as [[gate delay|propegation delay]], maximum [[fan-out]], and various other electrical characteristics. | ||
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| + | == Usage == | ||
| + | Ideal logic gates play a big role in many mathematical models and branches such as [[Boolean algebra]] and [[switching theory]] where operations are studied irrespective of the technology being used. They are also used in a wide variety of other settings since it allows a person to make key observations about [[ideal logic circuit|a particular circuit]] without diving into the full specifications. | ||
Latest revision as of 21:40, 20 December 2015
2 unrelated signals and a clock. Real signal takes some time to settle down at the correct output while the ideal signal always does so instantly.
An ideal logic gate is a logic gate performing operations on boolean values in an abstraction - dissipating no power and changing states instantaneously, similar to a step function. Such gates operate on discrete logic inputs and ignore most physical characteristics such as propegation delay, maximum fan-out, and various other electrical characteristics.
Usage[edit]
Ideal logic gates play a big role in many mathematical models and branches such as Boolean algebra and switching theory where operations are studied irrespective of the technology being used. They are also used in a wide variety of other settings since it allows a person to make key observations about a particular circuit without diving into the full specifications.