基于能量恢复的单相功率时钟触发器及其应用  

True Single-Phase Energy Recovery Flip-Flop for Low-Power Application

作　　者：高雷声[1] 周玉梅[1] 刘海南[1] 

机构地区：[1]中国科学院微电子研究所,北京100029

出　　处：《半导体技术》2010年第4期398-402,共5页Semiconductor Technology

基　　金：国家自然科学基金资助项目(60676015)

摘　　要：介绍了一种基于能量恢复的单相功率时钟触发器。该触发器的输入信号和输出信号均为方波,因此可以直接与传统的组合逻辑级联。该触发器仅需要14个晶体管,远少于传统触发器中晶体管的数目。仿真结果显示,在0.18μm工艺下,电源电压为1.2 V,时钟频率为200 MHz,开关活动率为50%时,与传统的触发器相比该能量恢复触发器可以节省31%的功耗。为了验证该触发器的功能,在0.18μm工艺下进行了电路设计,测试结果显示该触发器还可以在低电压下正常工作。A true single-phase energy recovery flip-flop is presented. The input and output signals of the trigger are square wave, so it can directly cascade with conventional combinational logic circuits. The flip-flop contains only 14 transistors, much less than conventional flip-flop. Compared with the conventional flip-flop, the true single-phase energy recovery flip-flop exhibits a power reduction of up to 31% at frequency of 200 MHz and operating voltages is 1.2 V in 0.18 μm process. In order to validate the function of energy recovery flip-flop, a chip was designed with 0.18 μm process. Measurement results indicate that the flip-flop can also work well at low voltages.

关 键 词：能量恢复 触发器 低功耗电路 单相功率时钟 

分 类 号：TN431.2[电子电信—微电子学与固体电子学]