## Sequential Circuit – Digital Logic

What is a sequential circuit? This tutorial explains how a sequential circuit made with gates works. There are other circuits or ICs that already work sequential way, like a flip-flop. For example, JK flip-flop, T flip-flop, D flip-flop, SR flip-flop, etc. The main difference between combinational circuits and sequential circuits is that in sequential circuits there is one or more […]

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## Logic AND Gate – AND Truth Table

What is a Logic AND gate?

The logic AND gate is one of the simplest gates in Digital Electronics. The output of an AND gate is true (“1”) only when all inputs are true (“1”). If one or more inputs are false (“0”), then the output is false (“0”).

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## XOR Logic Gate

XOR logic gate

In digital electronics there are special gates. One of them is the XOR logic gate or exclusive OR gate. Equivalent XOR Logic Gate using common logic gates

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## Binary to Gray code and Gray code to Binary Conversion

Binary to Gray Code Conversion and Gray code to Binary Conversion.

Two Methods. One method to convert from binary to gray code and another to convert from gray to binary code

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## Boolean Algebra – Introduction and Rules

Boolean Algebra – Introduction and Rules.

Boolean Algebra is a tool to reduce logical expressions. It is the mathematics of logical expressions, which was presented by George Boole in 1854.

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## What is a Binary Decoder?

What is a Binary Decoder?

The binary decoder is a device that accepts a digital input (in binary form) and it activates one of its outputs. This device has several outputs, and the one that is activated is chosen by the code applied to the inputs.

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## The logic NOT Gate

The logic NOT Gate The logic NOT gate or Inverter Gate is a logic gate that has only one input and one output. The output logic level is the opposite of the input logic level. The symbol and the truth table of the NOT gate are shown bellow. This gate is represented by the following Boolean function: X = A’. Look at the […]

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## What is a Logic Circuit?

What is a logic Circuit?

A Logic circuit uses two logic levels to transfer the information. A hight logic level or “1” and a low logic level or “0”. The Logic circuits are made of digital elements such as the AND gate, the OR gate, the NOT gate and a combinations of them.

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