It also helps ensure that you understand things like DeMorgan transformations. Taking a circuit described using AND and OR gates in either a sum-of-products or a product-of-sums format and converting it into an alternative representation using only NAND gates, only NOR gates, or a mixture of NAND and NOR gates is a great way to make sure you understand how the various gates work.Off the top of my head, I can think of the following reasons for lecturers instructing their students to perform this task: Having said this, thinking back to my own days as a student, it may be best that we don’t actually rule this out as a possible motivation. So, why would a lecturer request that his students implement a logic function using only NAND gates or only NOR gates (note that I specifically didn’t say “only NAND or NOR gates,” because this could be construed to mean that you can use both NANDs and NORs, but not ANDs and ORs etc.)Īlthough students may be surprised to hear this, it’s not necessarily the case that the lecturer is a bitter, frustrated person whose only pleasure in life is to make his or her pupils’ lives more difficult. Why use only NAND gates or only NOR gates? Finally, we will use what we’ve learned to address the student’s initial question. Then we are going to consider the general concepts of translating AND-OR-based circuits into their NAND-NOR counterparts. Next, we’re going to look at this student’s particular poser in more detail, taking it to an initial AND-OR solution. So, what we’re going to do is start by pondering why this class of problem should be posed in the first place. Finally, he must create an implementation using only NAND gates or only NOR gates.He’s been told to perform Karnaugh map minimization.He’s been instructed to create a corresponding truth table.

The student has been presented with a Boolean Equation.The core of this conundrum is as follows: It’s based on a question that a student posed in the EEWeb forums, and he also sent it directly to yours truly. This is going to be a column that’s divided into three sections. Taking a circuit described using AND and OR gates and converting it into an alternative representation using only NAND or NOR gates is a great way to learn how things work.

Multisim logic gates