Using Multisim

Verify the logic of the XOR and XNOR gates and compare to OR andNOR gates.

A) Orient the Word Generator and Logic Analyzer in the workspaceand enter the appropriate settings. (BELOW)

B) To create the four gates you will need four 10K resistorsand:

1) OR gate: a (7432)

2) NOR gate: an OR (7432) with an INV (7404)

3) XOR gate: a (7486)

4) XNOR gate: a XOR (7486) with an INV (7404).

C) Use outputs 00 and 01 of the Word Generator as inputs A and Bfor each of the four gates and connect them to the first two inputsof the Logic Analyzer.

D) Wire the outputs from the four gates to the next four LogicAnalyzer inputs and connect each output to ground through a 10Kresistor.

Fill in a Truth Table for each of the four gates

Word Generator

The pins 15…….0 go across the bottom.Double click on the Word Generator to get the Control screen andselect the following settings: Frequency = 1 kHz Trigger = InternalDisplay = Hex (codes) Also SET to Up Counter before you enterACCEPT to leave the screen.

Logic Analyzer

Select the following setting:Clock/Div = 16 From the setup screen, click on Clock SET andchoose: Clock Source = Internal Pre-trigger samples = 160Post-trigger samples = 160 Threshold = 2.5V Enter ACCEPT to leavethe Clock SET screen. From the setup screen, click on Trig SET andchoose: Trigger Clock Edge = Positive Trigger Qualifier = x PatternA = xxxxxxxxxxxxxx Trigger Combinations = A Enter ACCEPT to leavethe Trig SET screen