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Propagation delay for carry lookahead adder

  • Thread starter Ald
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Ald
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1. Homework Statement

1) I'm using a 4 bit carry lookahead adder to build a 8 bit parallel adder. I'm to calculate the maximum propagation delay time, assuming each gate introduces a unit time of propagation delay. I'm assuming not carry lookahead generators.

Would it just be 8 units of propagation delay?

2) If I had a 16 bit adder using carry lookahead generators, what would the maximum propagation delay time, assuming each gate introduces a unit time of propagation delay.

Thanks
 

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