College

Question

Excess 3 to BCD convertor using only full adders

Comments

If we consider that the code cycles in 4 bits i.e 0 - 15, we can add 13 to the excess-3(we ignore the carry) to get the BCD

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http://www.expertsmind.com/questions/design-a-bcd-to-excess-3-code-converter-using-nand-gates-30160778.aspx
can see here"BCD to Excess3 convertor using NAND gates"

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A and D cannot made up with adder I think