基于数据驱动动态逻辑电路的桶形移位器设计

Design of a Barrel Shifter with Data-Driven Dynamic Logic Circuit

介绍了一种新型数据驱动的动态逻辑电路。该电路去除了时钟信号,利用适当的输入数据来保持电路正确的逻辑操作。基于数字驱动的动态逻辑电路,设计了一种新型低功耗、高性能的8位桶形移位器。仿真结果表明,在相同的工作频率下,与基于传统动态逻辑电路的8位桶形移位器相比,新型8位桶形移位器的版图面积减少了40%,速度提高了17%,功耗-延迟积减少了14%。

A new type of dynamic logic circuit with data-driven dynamic logic circuit was introduced. In the circuit, the clock input was eliminated, and correct logic operation was maintained by appropriate use of input data values as pre-charge signal. Utilizing the data-driven dynamic logic circuit, a low power and high performance 8-bit barrel shifter was designed. Simulation results showed that the layout area of the new 8-bit barrel shifter was reduced by 40%, the circuit speed was improved by 17%, and the power-delay product was decreased by 14% as compared to the 8-bit barrel shifter based on conventional dynamic logic circuit under similar working frequency.