Triggering of flip flops (positive, negative and level trigger)

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Triggering of flip flops (positive, negative and level trigger)

Published by: Dikshya

Published date: 12 Jul 2023

Triggering of flip flops (positive, negative and level trigger)

Triggering of flip flops (positive, negative and level trigger)

1. Positive Edge-Triggered Flip-Flop:

- Also known as rising edge-triggered flip-flop.

- The flip-flop changes its state only at the rising edge (transition from low to high) of the clock signal.

- When the clock signal rises, the flip-flop samples the inputs and updates its state accordingly.

- This type of flip-flop is widely used in synchronous digital systems.

2. Negative Edge-Triggered Flip-Flop:

- Also known as falling edge-triggered flip-flop.

- The flip-flop changes its state only at the falling edge (transition from high to low) of the clock signal.

- When the clock signal falls, the flip-flop samples the inputs and updates its state accordingly.

- Negative edge-triggered flip-flops are commonly used in synchronous digital systems, just like positive edge-triggered flip-flops.

3. Level-Triggered Flip-Flop:

- In level-triggered flip-flops, the flip-flop continuously monitors the level of the clock signal.

- When the clock signal is in the specified level (either high or low), the flip-flop samples the inputs and updates its state.

- The flip-flop remains in the new state until the clock signal level changes.

- Level-triggered flip-flops are typically used in asynchronous digital systems.