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f-alpha.net » Electronics » Digital Electronics » Flip-Flop » Know more... » Experiment 22 - Gated D Latch with NAND

Experiment 22 - The Gated D Latch with NAND Gates

Consider the circuit shown. It is the same circuit as in Experiment 6, only this time it is constructed with NAND gates...

Circuit diagram gated D latch with NAND gates.

Circuit symbol gated D latch with NAND gates.

As a result the behavior of the input E is inversed...

  • With E= 0 you close the gated latch and the last result is stored.
  • When E = 1, you open the gated latch and with D you can switch between the two states.

Circuit gated D latch with NAND gates. (Enlarge)

The input E of a gated D latch with NAND gates is inverted with respect to the gated latch with NOR gates...

In the next experiment, you expand the DE-flip-flop by two inputs.

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