題組內容

五、一反相器電路,其偏壓電源為 VDD,其中輸出低階(output low level)VoL = 0.1 VDD, 輸出高階(output high level)VoH = 0.8 VDD,其中 VIL(maximum value of input interpreted by the inverter as logic 0)= 0.4 VDD ,VIH (minimum value of input interpreted by the inverter as logic 1)= 0.6 VDD。求此電路之:

⑶假設最小雜訊邊限(minimum noise margins)是 1 V,請問 VDD 為多少?(8 分)