U2L3SevenSegmentDisplays

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Problem

a. Using the Multisim, enter the seven-segment display test circuit shown below. Please note that the seven-segment display is a common cathode display.

b. For the seven switches (i.e., A thru G), determine the settings required so that the seven-segment display will display 0-9. Use the results to complete the table shown below.

Display	a	b	c	d	e	f	g
0	1	1	1	1	1	1	0
1
2
3
4
5
6
7
8
9

c. Again, using the seven SPDT switches (i.e., A thru G), determine at least ten alpha characters that you could display using the seven-segment display. Don’t forget to include lower case characters. Record your findings in the table shown below.

a. Analyze the seven-segment display circuit shown below and complete the display table shown. The display is a common cathode.

b. What message do you predict will be displayed?

J	K	Display
0	0
0	1
1	0
1	1

c. Using a breadboard, build and test the seven-segment circuit that you analyzed and simulated. Limit your implementation to only 2-input OR gates (74LS32), inverters (74LS04), and a common cathode seven-segment display. DON’T FORGET THE 220 W RESISTORS.

Complete the wiring of the seven-segment displays shown below so that they will display your age. If you are 15, display a (1) on the common cathode display and a (5) on the common anode display. Show me yours in class once you have completed it.