Table 1 Latencies and cycle time magnitudes of strong, weak, early output, and relative-timed n-bit RCAs, with m representing the maximum length of the carry chain exercised (m ≤ n)

Strong-indication

n × T_{full adder}

n × T_{full adder}

2n × T_{full adder}

Weak-indication (basic)

m × T_{full adder}

m × T_{full adder}

2 m × T_{full adder}

Weak-indication (distributed/biased)

m × T_{full adder}

2T_{full adder}

(m + 2) × T_{full adder}

Early output

m × T_{full adder}

2T_{full adder}

(m + 2) × T_{full adder}

Relative-timed (proposed)

m × T_{full adder}

T_{full adder}

(m + 1) × T_{full adder}