Consider a logic buffer (output logic value = input logic value) in a family of logic parameterized by the following mapping of voltages to logic levels:
A. What is the minimum gain a must exhibit over the forbidden zone in order to obey the static discipline with this convention?
B. Sketch the voltage-transfer characteristic of a buffer in this logic family.
C. Let be a voltage that, when applied to the inverter's input terminal, yields Vf at the buffer's output. Give a range of possible values for Vf.