Digital Electronics/Logic Operations

Logic Operation

Logic BUFFER perform a logic operation on a input . Output is the same as Input

Logic NOT perform a logic operation on a input . Output is the invert of Input

Logic AND perform a logic operation on two input to yield a result at the output. Output is High only when both Inputs are High

Logic OR perform a logic operation on two input to yield a result at the output. Output is Low only when both Inputs are Low

Logic XOR perform a logic operation on two input to yield a result at the output. Output is Low only when both Inputs are the same and Output is High only when both Inputs are different

Digital Logic Equation

If A and B is Input and Y as Output then

Logic BUFFER → Y = A

Logic NOT → Y = NOT A

Logic AND → Y = A AND B

Logic OR → Y = A OR B

Logic XOR → Y = A XOR B

Digital Truth Table

The logic operation of any logic above can be summarized in a table called a truth table.

If High is 1 and Low is 0 then

Digital Gates Construction

Each Logic can be constructed from electronic components to form a circuit of a device called Digital Gates to perform the logic operation