- #1
jisbon
- 476
- 30
- Homework Statement
- Build a 2-bit comparator using either two 74151 8-to-1 MUXs or two 3 to 8 binary decoders. Additional gates such as AND, NAND, OR, NOR, inverters can be used.
- Relevant Equations
- -
So I got this question while coming across, and I would like to seek some advice/tips for these types of questions.
1) Assuming I want to try and build using MUXs, I will get the truth table of both a 2 bit comparator and MUXs.
In this case: For comparator:
And for MUX:
So from what I learnt, MUX simply selects 1 input to be the output.
Is there any tips/tricks on to how to start with this question by possibly comparing the outputs? How should I be thinking to tackle these types of use 'something else'to build 'something' questions?
Thanks
1) Assuming I want to try and build using MUXs, I will get the truth table of both a 2 bit comparator and MUXs.
In this case: For comparator:
And for MUX:
So from what I learnt, MUX simply selects 1 input to be the output.
Is there any tips/tricks on to how to start with this question by possibly comparing the outputs? How should I be thinking to tackle these types of use 'something else'to build 'something' questions?
Thanks