Low-power Microcontroller Units Design and Realization Using Emer-ging Tunneling Field Effect Transistors
Tunneling Field Effect Transistor(TFET)-based low-power microcontroller design combines devices,circuits,and systems to achieve extremely low leakage power consumption under non-operating conditions through devices with ultra-low subthreshold swing characteristics,avoiding the power bottleneck brought about by the theoretical limit of the subthreshold swing of MOSFETs,and solving the problem of low power consumption of battery-powered microcontrollers.TFETs differ greatly from traditional MOSFETs in their operating mechanism,mainly in that they have lower leakage current after shutdown and can operate at lower voltages,which makes them suitable for IoT application scenarios with low-power requirements for long-dormant battery power supply.The paper investigates the research of TFET devices in low-power circuit design in recent years,introduces the structure of traditional microcontrollers and the source of power consumption,and at the same time explains the working principle,characteristics and design challenges of TFET devices,examines the research and development process of TFETs in the fields of digital circuits,analog circuits,and system design,and analyzes the strengths and weaknesses of each design scheme,and analyzes the advantages and disadvantages of TFETs in low-power circuits,in combination with the research of the literature.The future outlook of TFETs in the field of low-power microcontrollers is analyzed.
Internet of Things(IoT)low powerMicro controller unitNovel tunneling device