- #1
awelex
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Hi,
I have a question about NAND-NAND expressions. I do understand the conversion from AND-OR to NAND-NAND, but what I don't understand is how many textbooks show the resulting circuit, i.e. with an OR gate with inverted inputs as the top-level gate, such as in the second circuit here:
http://cfs.tistory.com/attach/6445/259783.bmp
I know that the conversion is algebraically correct, but doesn't a NAND-NAND circuit consist only of, well, NAND gates? How can an OR gate be used, then?
Thanks
I have a question about NAND-NAND expressions. I do understand the conversion from AND-OR to NAND-NAND, but what I don't understand is how many textbooks show the resulting circuit, i.e. with an OR gate with inverted inputs as the top-level gate, such as in the second circuit here:
http://cfs.tistory.com/attach/6445/259783.bmp
I know that the conversion is algebraically correct, but doesn't a NAND-NAND circuit consist only of, well, NAND gates? How can an OR gate be used, then?
Thanks