# Lab 3 - Lab Purpose The purpose of this lab was to become...

• Lab Report
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Lab Purpose: The purpose of this lab was to become more familiar with the design, reduction and final implementation of combinational circuits. The combinational circuit consisted of a 7-segment display composed of a series of LED’s that displayed decimal digits depending on which LED’s were active. This specific 7-segment display takes a four bit input that represents which digit to display and outputs seven signals which manage the on and off states of the segments of the display. In this particular combinational circuit the input codes for each decimal digit were as follow: Decimal Digit WXYZ 0 0010 1 1101 2 0001 3 0101 4 1100 5 0110 6 1000 7 0111 8 0000 9 0100 The other remaining input codes were to be treated as “don’t cares”. Design Methodology In order to design this circuit I initially developed a series of tables that represented each particular segment and all of the according decimal digits that displayed that segment. Doing this I came up with the following table: Segment Display Decimal Digit A 0 2 3 5 7

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• Spring '07
• ALBONESI/LONG
• Numerical digit, decimal digit

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