异步控制set-C单元的三种CMOS实现  

Three CMOS Implementations of Asynchronous Control C-Element with Set

作　　者：罗玲玉[1] 杨银堂[1] 周端[1] 徐阳扬[1] 

机构地区：[1]西安电子科技大学,710071

出　　处：《微计算机信息》2008年第26期274-276,共3页Control & Automation

基　　金：国家自然基金资助项目(90407016)项目名称:高性能SOC异步互连技术研究

摘　　要：本文提出了由CMOS实现的带set置位端C单元电路(记为set-C单元)的三种不同实现方案,介绍了每种方案下的管级电路及工作原理。采用0.25um标准CMOS工艺的瞬态仿真验证了所提出设计方案的正确性。通过HSPICE仿真,给出了三种方案的能耗、上升延迟与下降延迟的对比曲线。仿真结果表明,方案一较方案二的节能可达46%,较方案三的节能可达13%,由此得出方案一较佳的结论。Three CMOS implementations of C-element with set（set-C element for short） are introduced. Also, the circuit models of transistor level and the working principles of each implementation are presented. They are proved to be correct by transient simulation based on 0.25um typical CMOS process. By HSPICE simulation, curves of energy consumption, rising delay and falling delay of the three implementations are showed. Simulation result reveals that the first implementation would be saving 46% in energy over the second implementation, and saving 13% in energy over the third implementation. It is showed that in a typical environment, the first implementation is superior to the others.

关 键 词：异步控制 set-C单元 CMOS实现 仿真 能耗 延时 

分 类 号：TN431.2[电子电信—微电子学与固体电子学]