Why are you using a K map to implement pass transistors?

[ksnf3000]

Hello All,

I am a Masters student in Microelectronics and stuck at something very trivial. In implementing Pass transistors using K Map, i am facing some probs. For eg. consider the function bc(bar)
now if you draw a k map the left downward 4 blocks will be filled with 1s. I don't understand why 0s are being filled in the top 4 blocks and the entire and the entire section is being circled.

Thanks

Kashif

 

[psparky]

Posting a picture or sketch of your K map will make things infinitely clear to everyone.

Without seeing your inputs and outputs it's hard to answer your question.