Problem 1 num answer A No. The lowest output is 0.5V which is bigger than 0V. B 0.5V. The smallest output is 0.5V. C VOL=0.5V VIH=3V VOH=3.5V VIL=1V D 1V See this E 2/3V See this Problem 2 Inverter madness num answer A No B(A) VOL=1V VIL=3.5V VIH=5V VOH=6V B(B) not exist B(C) not exist B(D) VOL=0.5V VIL=1V VIH=3.5V VOH=6V Problem 3 Static discipline num answer A VIN<VIH B VIN<VIH Problem 4 Ternary Logic A range symbol 0~1V 0 1~2V noise margin 2~3V forbidden zones 3~4V noise margin 4~6V 1 6~7V noise margin 7~8V forbidden zones 8~9V noise margin 9~10V 2 num answer B See this C No. The device has only two stable regions. D log23 E 27 log227 5 F 475bits/second 300bits/second Problem 5 To be honest, I don't understand the problem. I can't catch some key points completely. See this Problem 6 num answer A C B 0.25V C No D/E See this Problem 7 A x y value 0 0 0 0 1 0 1 0 0 1 1 1 num | answer B | See this C | 5ns D | See this E | See this Problem 8 num answer A Yes B See this C No