Flip-flop
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Latch
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A flip-flop samples the inputs only at a clock event (rising edge, etc.)
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A Latch samples the inputs continuously whenever it is enabled, that is, only when the enable signal is on. (or otherwise, it would be a wire, not a latch).
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Flip-Flop are edge sensitive.
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Latches are level sensitive.
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Flipflop is sensitive to signal change and not on level. They can transfer data only at the single instant and data cannot be changed until next signal change.
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Latch is sensitive to duration of pulse and can send or receive the data when the switch is on.
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A flip-flop continuously checks its inputs and correspondingly changes its output only at times determined by clocking signal.
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Latch is a device which continuously checks all its input and correspondingly changes its output, independent of the time determined by clocking signal.
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It work’s on the basis of clock pulses.
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It is based on enable function input
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It is a edge trigerred , it mean that the output and the next state input changes when there is a change in clock pulse whether it may a +ve or -ve clock pulse.
| It is a level trigerred , it mean that the output of present state and input of the next state depends on the level that is binary input 1 or 0. |
Tuesday 1 November 2016
Flip Flop Vs Latch
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