Library Reference

A Logisim library holds a set of tools that allow you to interact with a circuit via clicking and dragging the mouse in the canvas area. Most often, a tool is intended for adding components of a particular type into a circuit; but some of the most important tools, such as the Poke Tool and the Select Tool, allow you to interact with components in other ways.

All of the tools included in Logisim's built-in libraries are documented in this reference material.

Base library
Poke Tool
Edit Tool
Select Tool
Wiring Tool
Text Tool
Menu Tool
Splitter
Pin
Probe
Clock
Label

Gates library
Constant

NOT Gate
Buffer

AND/OR/NAND/NOR Gate

XOR/XNOR/Odd Parity/Even Parity Gate
Controlled Buffer/Inverter

Plexers library
Multiplexer
Demultiplexer
Decoder
Priority Encoder
Bit Selector

Arithmetic library
Adder
Subtractor
Multiplier
Divider
Negator
Comparator
Shifter

Memory library
D/T/J-K/S-R Flip-Flop
Register
Counter
Shift Register
Random
RAM
ROM

Input/Output library
Button
Joystick
Keyboard
LED
7-Segment Display
Hex Digit Display
LED Matrix
TTY

Legacy library
Logisim 1.0 D/J-K Flip-Flop
Logisim 1.0 8-Bit Register