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Mathematics LibreTexts

2.2: Circuits

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Digital circuits are built by combining large numbers of pieces, called gates. Gates take one or two electrical inputs which are either low (0) or high (1) current and output a single current. The gates act like negation, and, and or. Figure 2.2.2 shows the symbols that are used on diagrams for these three gates.


LogicCircuits.svg
Figure 2.2.1 Symbols for Circuits

An example of combining gates to produce a more complicated circuit is shown in Figure 2.2.2 for ‘if.’

circuit_if.svg
Figure 2.2.2 Circuit for If

Practice

Checkpoint 2.2.3

Draw the circuit diagram that accepts three inputs a,b,c and outputs a(¬bc).


This page titled 2.2: Circuits is shared under a GNU Free Documentation License 1.3 license and was authored, remixed, and/or curated by Mark A. Fitch via source content that was edited to the style and standards of the LibreTexts platform.

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