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Recent questions tagged carry-ahead

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Digital logic question
A 1-bit full adder takes 20ns to generate carry out bit and 40ns to the sum bit. When four 1-bit full adders are cascaded , then the total time for additions is
A 1-bit full adder takes 20ns to generate carry out bit and 40ns to the sum bit. When four 1-bit full adders are cascaded , then the total time for additions is
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