电子、通信与自动控制

基于a- IGZO TFTs 的低功耗D 触发器设计

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  • 华南理工大学 电子与信息学院,广东 广州 510640
姚若河( 1961-) ,男,教授,博士生导师,主要从事集成电路系统设计、半导体物理及器件研究.

收稿日期: 2016-05-29

  修回日期: 2016-10-25

  网络出版日期: 2017-02-02

基金资助

国家自然科学基金资助项目( 61274085) ; 广东省科技计划项目( 2015B090909001)

Design of a Low-Power Consumption D Flip - Flop on the Basis of a-IGZO TFTs

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  • School of Electronic and Information Engineering,South China University of Technology,Guangzhou 510640,Guangdong,China
姚若河( 1961-) ,男,教授,博士生导师,主要从事集成电路系统设计、半导体物理及器件研究.

Received date: 2016-05-29

  Revised date: 2016-10-25

  Online published: 2017-02-02

Supported by

Supported by the National Natural Science Foundation of China( 61274085) and the Science and Technology Research Projects of Guangdong Province( 2015B090909001)

摘要

设计了一个基于Pseudo-CMOS 逻辑门的低功耗异步复位D 触发器电路. 该D 触发器全部由n 型a-IGZO TFTs( 薄膜晶体管) 构成,采用动态负载替代Pseudo-CMOS 拓扑中的二极管连接负载,通过减少电路导通的概率来降低静态功耗. 电路的输出级为锁存器,通过反馈通路减少由动态负载造成的输出摆幅降低对延迟的影响. 将该D 触发器应用于环行移位寄存器的设计中,结果表明,该触发器电路可有效降低或非门逻辑电路中的静态功耗.  

本文引用格式

姚若河 林少龙 . 基于a- IGZO TFTs 的低功耗D 触发器设计[J]. 华南理工大学学报(自然科学版), 2017 , 45(3) : 42 -47 . DOI: 10.3969/j.issn.1000-565X.2017.03.006

Abstract

Proposed in this paper is a low-power consumption D flip-flop circuit with asynchronous reset on the basis of Pseudo-CMOS logic gates,which consists of n-type a-IGZO TFTs ( Thin Film Transistors) ,replaces the diodeload in Pseudo-CMOS topology with dynamic load,and decreases the static power consumption by reducing the conduction probability of the circuit.The output stage of the circuit is a latch,and the effect of dynamic loadcaused output swing decrement on the delay is reduced through a feedback path.The proposed D flip-flop is then applied to the design of a ring shift register.The results show that the trigger circuit can reduce the static power consumption in NOR gate logic circuit effectively.

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