7400 Family Truth Tables - Revision history

XenoEngineer at 18:04, 26 February 2024

2024-02-26T18:04:24Z

XenoEngineer at 17:08, 26 February 2024

2024-02-26T17:08:16Z

← Older revision		Revision as of 17:08, 26 February 2024
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	;Basic logic gates are fundamental building blocks of digital circuits, performing logical operations on binary inputs to produce a single binary output. The seven basic logic gates are:		;Basic logic gates are fundamental building blocks of digital circuits, performing logical operations on binary inputs to produce a single binary output. The seven basic logic gates are:

	==Logic Gates Truth Tables==		==Logic Gates Truth Tables==
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	<h3>~~Inverter (NOT Gate)~~</h3>		<h3>Buffer</h3>
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XenoEngineer at 12:13, 26 February 2024

2024-02-26T12:13:48Z

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XenoEngineer at 12:07, 26 February 2024

2024-02-26T12:07:18Z

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XenoEngineer: Created page with "Category:TTL Category:7400 Category:reference Basic logic gates are fundamental building blocks of digital circuits, performing logical operations on binary inputs to produce a single binary output. The seven basic logic gates are: AND Gate: Outputs true (1) only when all inputs are true. Symbol: AND Gate Symbol Truth Table: A B A AND B 0 0 0 0 1 0 1 0 0 1 1 1 ===OR Gate=== Outputs true (1) if at least one input is true. Symbol: OR Gate Symbol Truth Tabl..."

2024-02-26T11:23:29Z

Created page with "Category:TTL Category:7400 Category:reference Basic logic gates are fundamental building blocks of digital circuits, performing logical operations on binary inputs to produce a single binary output. The seven basic logic gates are: AND Gate: Outputs true (1) only when all inputs are true. Symbol: AND Gate Symbol Truth Table: A B A AND B 0 0 0 0 1 0 1 0 0 1 1 1 ===OR Gate=== Outputs true (1) if at least one input is true. Symbol: OR Gate Symbol Truth Tabl..."

New page

[[Category:TTL]]
[[Category:7400]]
[[Category:reference]]

Basic logic gates are fundamental building blocks of digital circuits, performing logical operations on binary inputs to produce a single binary output. The seven basic logic gates are:
AND Gate: Outputs true (1) only when all inputs are true.
Symbol: AND Gate Symbol
Truth Table:
A B A AND B
0 0 0
0 1 0
1 0 0
1 1 1

===OR Gate===
Outputs true (1) if at least one input is true.
Symbol: OR Gate Symbol
Truth Table:
A B A OR B
0 0 0
0 1 1
1 0 1
1 1 1

== Tri-state outputs (for multiplexing outputs) ==
;<sub>Retrieved 11:23, 26 February 2024 (UTC) from Perplexity.io</sub>
In a 7400-series integrated circuit, the main difference between a tri-state output and a regular output lies in the ability of the tri-state output to assume three states: high (logic 1), low (logic 0), or a high-impedance state (open circuit). This allows the output to be effectively disconnected from the rest of the circuit when not actively driving a signal. Tri-state outputs require an additional "enable" input to control whether the output is active or in the high-impedance state, providing flexibility in signal routing and preventing short circuits when multiple devices are connected to the same output line[1][3]. Regular outputs, on the other hand, typically drive signals actively without the option to disconnect from the circuit.

The tri-state output's ability to enter a high-impedance state makes it particularly useful in scenarios where multiple devices share a common output line, allowing only one device to drive the signal at a time while others remain disconnected, thus preventing signal contention and ensuring proper communication within the circuit[3].

Citations:
[1] https://www.electronics-notes.com/articles/electronic_components/logic-ic-families-technologies/7400-series-ttl.php
[2] https://youtube.com/watch?v=OgV4tDxk7sY
[3] https://forum.digikey.com/t/tri-state-logic-input-outputs/25183
[4] http://www.markbereit.com/rsrc/ccdig_74ls.html
[5] https://en.wikipedia.org/wiki/7400-series_integrated_circuits

<html>
<title>Logic Gates Truth Tables</title>
<style>
table {
border-collapse: collapse;
margin-bottom: 20px;
}
th, td {
border: 1px solid black;
padding: 8px;
text-align: center;
}
th {
background-color: #aaa;
}
.and-table {
float: left;
margin-right: 20px;
}
.nand-table {
float: left;
}
</style>
</head>
<body>

<div class="and-table">
<h2>AND Gate Truth Table</h2>
<table>
<tr>
<th>A</th>
<th>B</th>
<th>Output</th>
</tr>
<tr>
<td>0</td>
<td>0</td>
<td>0</td>
</tr>
<tr>
<td>0</td>
<td>1</td>
<td>0</td>
</tr>
<tr>
<td>1</td>
<td>0</td>
<td>0</td>
</tr>
<tr>
<td>1</td>
<td>1</td>
<td>1</td>
</tr>
</table>
</div>

<div class="nand-table">
<h2>NAND Gate Truth Table</h2>
<table>
<tr>
<th>A</th>
<th>B</th>
<th>Output</th>
</tr>
<tr>
<td>0</td>
<td>0</td>
<td>1</td>
</tr>
<tr>
<td>0</td>
<td>1</td>
<td>1</td>
</tr>
<tr>
<td>1</td>
<td>0</td>
<td>1</td>
</tr>
<tr>
<td>1</td>
<td>1</td>
<td>0</td>
</tr>
</table>
</div>

</html>