A 4-bit Barrel Shifter Design using Diverse Logic Style

Priyanka Tiwari, Amit Kumar
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Abstract

Very–low-power CMOS IC design is needed for any communication systems. The system’s performance is measured in terms of less power dissipation, small delay and small area. In ALU design we use Shift resisters to perform the addition, multiplications, shifting and floating point arithmetic. Shift resistors are made up of flip flops, in which n clock pulses are required for n shifts. We can use Barrel Shifters instead of shift resistors, which requires only one clock pulse for n shift. In this paper I designed a 4-bit Barrel Shifters using Static CMOS, TGL and PTL. And measured the performance depend on the parameters like delay and power consumed. Analysis is done in cadence virtuoso tool at 45nm technology.
一种采用不同逻辑风格的4位桶式移位器设计
任何通信系统都需要极低功耗的CMOS IC设计。该系统具有功耗小、时延小、面积小等特点。在ALU设计中,我们使用移位电阻来执行加法、乘法、移位和浮点运算。移位电阻由触发器组成,其中n个移位需要n个时钟脉冲。我们可以使用桶式移位器代替移位电阻,它只需要一个时钟脉冲进行n次移位。本文利用静态CMOS、TGL和PTL设计了一个4位桶形移位器。并根据延迟和功耗等参数对性能进行了测量。分析在45纳米技术的cadence virtuoso工具中完成。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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