You wish to add two 4-bit numbers. You have half adders and full adders available to...
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You wish to add two 4-bit numbers. You have half adders and full adders available to use as components. Draw a block diagram of your 4-bit adder, using both half and full adders. Do not draw a gate-level diagram. Show and label all inputs and outputs. 5 Marks Assume that a half adder has a maximum propagation delay of A, and a full adder has a maximum propagation delay of 2A. What is the maximum propagation delay for your 4-bit adder, from LSB input to MSB output? 4 Marks A 32-bit ripple carry adder is realized using 32 identical Full Adders (FA). The carry- propagation delay of each FA is 13 nsec and the sum-propagation delay of each FA is 17 nsec. What is the worst case delay (in nsec) of this 32-bit adder. 8 Marks Discuss the principle of the Carry Look-Ahead Adder (CLAA). Write and explain the expression for the carry-output of a 4-bit carry lookahead adder. You wish to add two 4-bit numbers. You have half adders and full adders available to use as components. Draw a block diagram of your 4-bit adder, using both half and full adders. Do not draw a gate-level diagram. Show and label all inputs and outputs. 5 Marks Assume that a half adder has a maximum propagation delay of A, and a full adder has a maximum propagation delay of 2A. What is the maximum propagation delay for your 4-bit adder, from LSB input to MSB output? 4 Marks A 32-bit ripple carry adder is realized using 32 identical Full Adders (FA). The carry- propagation delay of each FA is 13 nsec and the sum-propagation delay of each FA is 17 nsec. What is the worst case delay (in nsec) of this 32-bit adder. 8 Marks Discuss the principle of the Carry Look-Ahead Adder (CLAA). Write and explain the expression for the carry-output of a 4-bit carry lookahead adder.
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As requested heres a thorough explanation for each of the questions youve provided 1 Draw a block diagram of your 4bit adder using half and full adders To create a 4bit adder you need to cascade multi... View the full answer
Related Book For
Digital Systems Design Using Verilog
ISBN: 978-1285051079
1st edition
Authors: Charles Roth, Lizy K. John, Byeong Kil Lee
Posted Date:
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