The Seven Segment Display

INTRODUCTION

Suppose we are interning on the User Interface team at a company that designs and manufactures calculators. Our task is to design the circuit for the seven segment display. Watch the video about how the seven segment display works and then following the procedure below.

Don’t Cares and the Seven Segment Display (Links to an external site.)

PROCEDURE

PART 1 – COMPLETE THE TRUTH TABLE FOR THE SEVEN SEGMENT DISPLAY

1. Using the spreadsheet software of your choice, construct the truth table for the seven segment display that was started in the video above.
2. Save your spreadsheet and include with your lab submission

PART 2 – K-MAP MINIMIZATION

1. Using good old pencil and paper, write K-maps for the outputs B through G.
2. Use the K-maps to determine the minimal Boolean function for output G (since Multisim has a gate limit).

PART 3 – DRAW THE CIRCUIT IN MULTISIM

1. Draw the circuits for the output function G on one Multisim page. Tip: To keep things organized on the page, lay your digital inputs down vertically at the top of the page and connect a wire that extends down the length of the page. Then you can fasten connections for each output circuit. Let me know if you have questions or would like to see an example.

PART 4 – LAB REPORT

1. Scan or take pictures of your K-maps and Boolean output functions
2. Export your Multisim circuit diagram as a PNG
3. Compile all images using the word processing program of your choice and submit via Canvas as lab4yourname.pdf. Thanks and let me know if you have any questions!

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