TY - JOUR
T1 - High-speed adder design using time borrowing and early carry propagation
AU - Jung, Gunok
AU - Sobelman, Gerald E
PY - 2000
Y1 - 2000
N2 - This paper presents a novel application of skew-tolerant domino circuit design by combining the effects of time borrowing and early carry propagation in a 64-bit adder. Skew-tolerant circuit design softens the clock edges and allows time borrowing from one stage of logic to the next in a pipeline. Early carry propagation also softens clock edges by allowing useful work to be done during the precharge phase. In this paper, these two effects are used simultaneously, resulting in a significant reduction in latency. Simulation results show that up to a 42% decrease in delay can be achieved over a traditional two-phase clocking design when both techniques are combined in the same circuit.
AB - This paper presents a novel application of skew-tolerant domino circuit design by combining the effects of time borrowing and early carry propagation in a 64-bit adder. Skew-tolerant circuit design softens the clock edges and allows time borrowing from one stage of logic to the next in a pipeline. Early carry propagation also softens clock edges by allowing useful work to be done during the precharge phase. In this paper, these two effects are used simultaneously, resulting in a significant reduction in latency. Simulation results show that up to a 42% decrease in delay can be achieved over a traditional two-phase clocking design when both techniques are combined in the same circuit.
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U2 - 10.1109/ASIC.2000.880673
DO - 10.1109/ASIC.2000.880673
M3 - Article
AN - SCOPUS:0033681909
SN - 1063-0988
SP - 43
EP - 47
JO - Proceedings of the Annual IEEE International ASIC Conference and Exhibit
JF - Proceedings of the Annual IEEE International ASIC Conference and Exhibit
ER -