Novel universal threshold logic gate based on RTD and its application

  • Authors:
  • Yi Wei;Jizhong Shen

  • Affiliations:
  • Department of Information Science and Electronic Engineering, Administration Building, Yuquan campus of Zhejiang University, Hangzhou, Zhejiang 310027, China;Department of Information Science and Electronic Engineering, Administration Building, Yuquan campus of Zhejiang University, Hangzhou, Zhejiang 310027, China

  • Venue:
  • Microelectronics Journal
  • Year:
  • 2011

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Abstract

Resonant tunneling diodes (RTDs) are receiving much attention because of their high-speed switching capability and functional versatility. Due to the negative differential resistance exhibited by RTDs, great functionality with a single gate can be achieved. In this paper, novel universal threshold logic gates (UTLG) based on RTD with simple structure and fixed parameter are proposed. The three-variable UTLG implement all the threshold functions of three variables by reconfiguring the input bits. The proposed circuit can also be applied to the design of arbitrary logic function in a multilevel threshold network. Finally, the operation of UTLG is verified by HSPICE simulation using extensively validated models.