assignment 1

Shahriar Alam Fahim
Shahriar Alam Fahim Fahim
• Created on Jul 28, 2021 • 0 • 0 • 3
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assignment 1
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Integrated Circuits Used

74LS32 74LS08 74LS04

Description

Question: Consider you want to create a kid’s playing box that have 3 input button each defined by a fix number. Like ✓ Button A – 1 ✓ Button B – 3 ✓ Button C – 5 ❖ Now if any combination of those buttons is turn on (1) and the addition of those corresponding button’s value is an even number then a green bulb will light on (1) else it will remain light off (0). ▪ Now Draw the Truth table for all possible 8 combinations ▪ Find the Boolean Expression of the Truth Table ▪ Try Simplify the Circuit using Boolean Algebra ▪ Draw the simplified circuit ▪ Create the Circuit in the DeldSim. ▪ Submit with Screenshot, Working and Deldsim Link

Procedure

  1. Add IC 74LS32 into ICBase-1 (74LS32).
  2. Add IC 74LS08 into ICBase-2 (74LS08).
  3. Add IC 74LS08 into ICBase-3 (74LS08).
  4. Add IC 74LS04 into ICBase-4 (74LS04).
  5. Connect VCC Port to Pin-20 (VCC) of ICBase-1 (74LS32).
  6. Connect VCC Port to Pin-20 (VCC) of ICBase-2 (74LS08).
  7. Connect VCC Port to Pin-20 (VCC) of ICBase-3 (74LS08).
  8. Connect VCC Port to Pin-20 (VCC) of ICBase-4 (74LS04).
  9. Connect GND Port to ICBase-1 (74LS32).
  10. Connect GND Port to Pin-7 (Ground) of ICBase-1 (74LS32).
  11. Connect GND Port to Pin-7 (Ground) of ICBase-2 (74LS08).
  12. Connect GND Port to ICBase-3 (74LS08).
  13. Connect GND Port to Pin-7 (Ground) of ICBase-3 (74LS08).
  14. Connect GND Port to Pin-7 (Ground) of ICBase-4 (74LS04).
  15. Connect Pin-1 (Input) of ICBase-1 (74LS32) to Pin-3 (Output) of ICBase-3 (74LS08).
  16. Connect Pin-3 (Input) of ICBase-4 (74LS04) to Input-1.
  17. Connect Pin-4 (Input) of ICBase-2 (74LS08) to Pin-4 (Output) of ICBase-4 (74LS04).
  18. Connect Input-0 to Pin-5 (Input) of ICBase-2 (74LS08).
  19. Connect Pin-4 (Input) of ICBase-3 (74LS08) to Pin-6 (Output) of ICBase-2 (74LS08).
  20. Connect Input-2 to Pin-5 (Input) of ICBase-3 (74LS08).
  21. Connect Pin-2 (Input) of ICBase-1 (74LS32) to Pin-6 (Output) of ICBase-3 (74LS08).
  22. Connect Pin-19 (Input) of ICBase-1 (74LS32) to Pin-3 (Output) of ICBase-1 (74LS32).
  23. Connect Pin-5 (Input) of ICBase-4 (74LS04) to Input-2.
  24. Connect Pin-19 (Input) of ICBase-2 (74LS08) to Pin-6 (Output) of ICBase-4 (74LS04).
  25. Connect Input-0 to Pin-18 (Input) of ICBase-2 (74LS08).
  26. Connect Pin-19 (Input) of ICBase-3 (74LS08) to Pin-17 (Output) of ICBase-2 (74LS08).
  27. Connect Input-1 to Pin-18 (Input) of ICBase-3 (74LS08).
  28. Connect Pin-18 (Input) of ICBase-1 (74LS32) to Pin-17 (Output) of ICBase-3 (74LS08).
  29. Connect Output-0 to Pin-17 (Output) of ICBase-1 (74LS32).
  30. Connect VCC Port to ICBase-1 (74LS32).
  31. Connect Pin-1 (Input) of ICBase-4 (74LS04) to Input-0.
  32. Connect Pin-1 (Input) of ICBase-2 (74LS08) to Pin-2 (Output) of ICBase-4 (74LS04).
  33. Connect Input-1 to Pin-2 (Input) of ICBase-2 (74LS08).
  34. Connect Pin-1 (Input) of ICBase-3 (74LS08) to Pin-3 (Output) of ICBase-2 (74LS08).
  35. Connect Input-2 to Pin-2 (Input) of ICBase-3 (74LS08).