ELT - Lab 2

# ELT - Lab 2 - Using all the binary inputs I checked that...

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Ryan Smith Driving the Seven Segment Display Object : To observe the seven-segment display while using the 74LS47 chip to decode a binary coded decimal input to show the correct decimal digit on the display. Truth Table for “e”: D C B A e 0 0 0 0 1 0 0 0 1 0 0 0 1 0 1 0 0 1 1 0 0 1 0 0 0 0 1 0 1 0 0 1 1 0 1 0 1 1 1 0 1 0 0 0 1 1 0 0 1 0 1 0 1 0 1 1 0 1 1 0 1 1 0 0 0 1 1 0 1 0 1 1 1 0 1 1 1 1 1 0 Procedure: In this lab, I set up the 74LS47 chip on the CADET workbench and connected the output of the four logic switched to the inputs on the chip. Then I connected the outputs from the 74LS47 chip to the correct inputs on the display chip.
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Unformatted text preview: Using all the binary inputs, I checked that the right number is shown on the display. Conclusion: I found this lab to be very useful; I learned how to decode a binary coded decimal by using a 74LS47 chip. I also learned that the seven-segment display chip heats up very fast, and must be used in small increments....
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