What is the difference between latch and flip-flop?

What is the difference between latch and flip-flop?
I have read somewhere in this board that latch is level trigerred and flip-flop is edge trigerred but the S-R master slave flip-flop is level trigerred.
Could somebody please clear my doubt.
Thanks,
Bye

Re: LATCH VS FLIP_FLOP

Latch is asynchronous but the flip-flop can't be asynchronous.

Re: LATCH VS FLIP_FLOP

What about flip-flop with asynchronous reset?

Re: LATCH VS FLIP_FLOP

The simplest latch has 2 inputs, say A and B. If A=1 and B=0 then when A returns to 0 the latch remembers A. And vice versa with B. So in this sense the latch is level triggered, meaning that as soon as the data (A for example) reaches a 1 level the latch switches state (assuming A starts at 0 ). So the output of the latch changes when data changes so as USAID said it is asynchronous meaning it does not change with the clock.

Flip-Flops use a clock in addition to data inputs. The output only changes on the edge of the clock - i.e. the data input is 'sampled'. Since the output only changes on a clock edge, it is said to be synchronous. The advantage of a synchonous system is that the movement of data through the system can be controlled with the clock.

Resets for flip-flops can be asynchronous meaning that they will reset the flip-flop regardless of the state of the clock. These resets are usually reserved for startup and not used during normal operation.

LATCH VS FLIP_FLOP

the output of the latch changes when there is a change in the input (enable is high), whereas a flip-flop does not change even when there is a change in the input(clock is high)

Re: LATCH VS FLIP_FLOP

Hi,
Latches are Level sensitive devices and Flip Flops are Edge sensitive devices

Thanks
Shaikh Sarfraz

Re: LATCH VS FLIP_FLOP

the reset in the FF can be asynchronous
but the FF operation itself is synchronous with the clock input
the latch operation is asynchronous...no clock at all...it's according to the inputs changes

Re: LATCH VS FLIP_FLOP

I don't know if an RS Flipflop is really a flipflop, although subsequent transitions on the last active input ( R or S ) are ignored. You could say that a RSFF is edge sensitive without being synchronous. :?: