Abstract：The resonant tunneling diode (RTD) as a relatively mature quantum device, has a unique characteristic of negative differential resistance. Naturally, the monostable-bistable transition logic element (MOBILE) composed of RTDs can make good use of this characteristic for digital circuit design. This paper presents a new RTD control-output method with MOBILE. The advantage of this method is that the forward and reverse current voltage characteristics of RTD are combined, therefore, the three-terminal devices with large area could be avoided and the circuit design becomes convenient. With the RTD control-output method and a HEMT device, a novel D-latch was designed. The D-latch has a high level of bias voltage, which not only enables the high-level trigger mode of the MOBILE, but also possesses the characteristic of self-locking. The HSPICE simulation and analysis show that the D-latch has low-power consumption and fast-working speed, meanwhile it has a very simple circuit structure.
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2018, Vol. 45 
