REDSTONEPEDIA › Circuits › Logic gates

Logic gates

Combine signals: a door that needs two levers (AND), two buttons for one door (OR), a light switched from both ends of a hallway (XOR), a lamp that is on while a lever is off (NOT).

Filter them in the index

The pictures show each design with its inputs and a lamp on its output; the block counts leave those out.

A OR BLogic gate
A OR B · instant · 1 block
made of redstone wire · fits in 1×1×1
tiles every 2 blocks1 block wide
A AND BLogic gate
A AND B · 5 blocks
reacts in 4 ticks (0.2 s) · made of redstone torch, redstone wire · fits in 3×2×2
NOTLogic gate
NOT · 1 block
reacts in 2 ticks (0.1 s) · made of redstone torch · fits in 1×1×1
tiles side by sidelies flat (1 block high)
NOT (A OR B)Logic gate
NOT (A OR B) · 2 blocks
reacts in 2 ticks (0.1 s) · made of redstone torch, redstone wire · fits in 2×1×2
tiles every 2 blocks
NOT (A AND B)Logic gate
NOT (A AND B) · 2 blocks
reacts in 2 ticks (0.1 s) · made of redstone torch · fits in 2×1×2
lies flat (1 block high)
A XOR B (one, not both)Logic gate
A XOR B (one, not both) · 15 blocks
reacts in 2 ticks (0.1 s) · made of comparator, redstone wire · fits in 4×4×2
A same as BLogic gate
A same as B · 17 blocks
reacts in 4 ticks (0.2 s) · made of comparator, redstone torch, redstone wire · fits in 5×4×2
A AND (NOT B)Logic gate
A AND (NOT B) · 3 blocks
reacts in 2 ticks (0.1 s) · made of comparator, redstone wire · fits in 1×2×2
1 block wide
(NOT A) OR BLogic gate
(NOT A) OR B · 2 blocks
reacts in 2 ticks (0.1 s) · made of redstone torch, repeater · fits in 2×2×1
1 block wide