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ECE251 hw7

# ECE251 hw7 - × 16 decoder with low asserted outputs low...

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NEW JERSEY INSTITUTE OF TECHNOLOGY ACADEMIC YEAR 2010-2011 SEMESTER 1 ECE251 DIGITAL DESIGN HW 6 1. Design a 9’s complement of a Binary Coded Decimal (BCD) digit. In the circuit: A B C D W X Y Z MSB LSB MSB LSB Fig. 1. Circuit to be designed ABCD is a number in BCD ( A being the most significant, MSB, bit) and WXYZ is its 9’s complement ( W being the MSB). Implement your circuit by only using 2-input AND, OR, XOR gates, and Inverters. 2. Redesign the circuit of Pb. 1 using a 4
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Unformatted text preview: × 16 decoder with low asserted outputs, low asserted enable, and extra gates. 3. Implement the function ∏ = ) 15 , 11 , 9 , 6 , 3 , 1 ( ) , , , ( D C B A F using an 8 × 1 multiplexer with low asserted enable and extra gates. Choose MEV= A . 4. Design a ripple counter that counts from 0 to 27 using TFFs. Does any of the counts behave differently from all the rest? Explain. 5. Repeat Pb. 3 using MEV= D . 1...
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