1. Defining Bistable Multivibrator: A bistable multivibrator has
two stable states. It will remain in one state indefinitely until an external trigger pulse forces it into the second state. It will then remain in that second state until another trigger forces it back to the first.
2. Relation to Flip-Flops: This behavior of storing a "state" (0 or 1) based on external inputs is the definition of a Flip-Flop. In digital electronics, the terms "Bistable Multivibrator" and "Flip-Flop" are often used interchangeably. It serves as the fundamental building block for computer memory (SRAM) and registers.
3. Analysis of other types:
• Astable Multivibrator: Has no stable states; it continuously switches between two states, acting as a
square wave generator.
• Monostable Multivibrator: Has one stable state. When triggered, it enters a temporary state and then automatically returns to the stable state after a set time. This is used for pulse stretching or "one-shot" timers.
• Missing Pulse Detector: Usually implemented using a monostable multivibrator.
Since the bistable circuit holds its state until told otherwise, it is functionally a flip-flop.