Keywords: Bistable Flip-Flop, Standard SR NAND Flip-Flop, RST Flip-Flop Objectives: To research the properties and performance of cross-coupled inverting logic gates. To create the gates to be able to obtain an experience, in the same time able to understand the Bistable Flip-Flop. These circuits have been mainly replaced turn into a easy and effective design. These designs for applications including large dimension digital circuits. Although these circuits..