Digital Electronics · Boo

XNOR Logic Gate

Explore all 7 fundamental logic gates. Toggle inputs live, view internal circuit diagrams, and read truth tables — all in one place.

XNOR Logic Gates

Fundamental Gates — Interactive

Click inputs A and B to toggle between 0 and 1. Switch between gate symbol and internal CMOS circuit.

Boolean Algebra

Standard boolean notation for each logic gate

AND Gate

Y = A · B

Output HIGH only when all inputs are HIGH

OR Gate

Y = A + B

Output HIGH when any input is HIGH

NOT Gate

Y = A'

Output is the logical complement of input

NAND Gate

Y = (A·B)'

Universal gate — can build any other gate

NOR Gate

Y = (A+B)'

Universal gate — complement of OR

XOR Gate

Y = A⊕B

Output HIGH when inputs differ

XNOR Gate

Y = A⊙B

Output HIGH when inputs are equal

Logic Gates

Universal Gates

Truth Table Rows

∞

Combinations

1854

Boolean Algebra

CMOS

Modern Tech