3. SR Latch using NAND Gates | Tech Gurukul by Dinesh Arya

SR Latch using NAND Gates | Tech Gurukul by Dinesh Arya
The simplest bistable device, therefore, is known as a set-reset, or S-R, latch. To create an S-R latch, we can wire two NAND gates in such a way that the output of one feeds back to the input of another, and vice versa, like this: The Q and not-Q outputs are supposed to be in opposite states.
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