一种共振隧穿二极管三值逻辑电路设计方法

Design methodology of ternary logic circuit on resonant tunneling diode

通过对多值单稳态—多稳态转换逻辑单元的分析,发现开关信号理论可以准确地解释其工作原理。在此基础上,提出了三值共振隧穿二极管电路一般结构,用于实现任意三值逻辑函数。相应的电路设计方法可归为求取开关函数的最简表达式,并用异质结场效应晶体管实现,从而避免电路中共振隧穿二极管参数的调整,简化整个设计过程。模拟仿真表明所设计的电路具有正确的逻辑功能。

A new operator was introduced based on the switch-signal theory to describe the operating principle of ternary monostable-to-multistable transition logic element. A novel ternary RTD circuit topology and corresponding method were also proposed, which could make the design process straightforward to simplify the switch functions and implement the circuit with transistor networks. Furthermore, it could also avoid modifying the parameters of RTD in the process. Finally, the circuits were verified by simulation with extensively validated models.