# Edge Triggered and Level Triggered Flip Flop

What are edge triggered flip flop and level triggered flip flop? How do they differ from one another?

#### maruthapandi.m

• Feb 3rd, 2012

Edge triggered Flip flop means that the input is neg to post (0-1) but level trigger means input is post to neg bit (1-0)

#### Giridhar

• Feb 13th, 2012

Edge triggered flip flop are of two types

1. Positive edge triggered flip flop-In a pulse train when ever the input is changing its state from negative edge to positive edge then it will be considered as logic 1 otherwise it is 0

2. Negative edge triggered flip flop-same as above but reverse.

LEVEL TRIGGERED FLIP FLOP are two types

1. Positive level triggered flip flop-in a pulse train when ever the pulse is high then it will be logic 1 otherwise it is zero.

2. Negative level triggered flip flop-in a pulse train when ever the pulse is low then it will be logic 1 otherwise it is zero.

#### krishna

• Apr 17th, 2013

Apart from the answers above, it is important to note that edge triggered flip flops have advantage over level triggered flip flops.

#### Brijesh Ranga

• Aug 2nd, 2013

level trigger ff work only the level of the signal either high(1) or low(0) but edge trigger work on the either rising edge or talling edge