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AND Gate

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Revision as of 11:24, 7 September 2025 by Felipe (talk | contribs) (fix wording)
AND gate

AND gate with two inputs
Component info
Internal ID MHG.AndGate
Configurable Yes
Input and output
Input count Adjustable from 2 to 4
Output count 1
Propagation delay 1 tick

The AND gate is a basic digital logic component whose output will be active if all its inputs are active.

For a 2 input AND gate, it is 1 tile wide and 1 tile tall, and its body is 1 tile long, but its inputs and outputs extend its area to 3 tiles.

An AND gate with 2 inputs will demonstrate the following behavior:

AND Gate Truth Table
Input 1Input 2Output
000
010
100
111

Timing

The AND gate's output will only be active if all of its inputs are active. This is true no matter how many inputs the AND gate has.

A demonstration of two AND gates being activated. The top AND gate has both its inputs active, but its output is not yet active because a delay of 1 tick has not yet passed. The bottom AND gate has had both its inputs active for at least 1 tick, and its output is therefore active.

The AND gate has a latency of 1 tick, so in the instance when all inputs are active, the output will become active 1 tick later. As demonstrated in the example on the right.

Configurability

Pressing the edit button on an AND gate allows you to change the number of inputs it has. You can select 2, 3, or 4 inputs.

Changing the number of inputs on an AND gate does not change its latency, but it does make the components bigger, with their width changing from 1 tile wide with 2 inputs to a little less than 2 tiles wide with 3 inputs, to 2 tiles wide with 4 inputs.

Note that when an AND gate has 3 inputs, while its width is less than 2 tiles, the component is centered on a tile, causing it to require 3 tiles of width.

Smaller components such as pegs and other 3 input AND gates can still occupy the adjacent tile. But other components that take up a full tile will need to be moved over.