Digital · 7 components

4-bit arithmetic unit

Add two four-bit counters with carry. This larger digital circuit demonstrates buses built from individual nets and a fourteen-terminal adder.

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Explore the circuit

Inspect the component values and connections, then run the logic analysis. Select signals by the component terminals listed in the instruments. After changing a value, run again and compare the new result.

Components in this demo

ReferenceComponentExplicit parameters (SI units)
CLK1clockfrequency: 100
CLK2clockfrequency: 50
EN1logicstate: 1
UAcounter4Component default
UBcounter4Component default
SUMadder4Component default
GND1groundComponent default

Unspecified values come from the component library. Inspect each part in the workbench before using the model in another design.

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