(Solved): Problem 3 Cross-Coupled NAND Gate Circuit - The cross-coupled NAND gate is a simple example of a se ...

Problem 3 Cross-Coupled NAND Gate Circuit - The cross-coupled NAND gate is a simple example of a sequential circuit in the case of the 1-1 input. In this case, the outputs $Q/Q?bar$ are not functions only of the inputs but also of the previous state of the circuit. - The 1-1 input state is called the bistable state, which means that there are two possible output values for Q/Q-bar given the input values 1-1. Show the two possible output values for $\mathrm{Q}/\mathrm{Q}$-bar when the input is 1-1 using the two diagrams below. Confirm that the input and output values are logically consistent with the NAND truth table.