The look-ahead carry method suffers from propagation delays.

Related MCQs

• The carry propagation can be expressed as .
• The digital logic family which has the lowest propagation delay time is
• The greater the propagation delay, the
• Which of the following logic families has the shortest propagation delay?
• he digital logic family which has the lowest propagation delay time is
• What is the maximum counting speed of a 4-bit binary counter which is composed of flip-flops with a propagation delay of 25 ns ?
•                  occurs when the same clock signal arrives at different times at different clock inputs due to propagation delay
•                  occurs when the same clock signal arrives at different times at different clock inputs due to propagation delay.
• In which of the following adder circuits, the carry look ripple delay is eliminated ?
• A full-adder has a Cin = 0. What are the sum and the carry (Cout) when A = 1 and B = 1?