What is latch in electronic circuits?
n electronics, a latch is a kind of bistable multivibrator, an electronic circuit which has two stable states and thereby can store one bit of information. Today the word is mainly used for simple transparent storage elements, while slightly more advanced non-transparent (or clocked) devices are described as flip-flops. Informally, as this distinction is quite new, the two words are sometimes used interchangeably.
A circuit incorporating latches has state; its output may depend not only on its current input, but also on its previous inputs. Such a circuit is described as sequential logic.
Simple set-reset latches
SR latch
SR latch
SR latch
When using static gates as building blocks, the most fundamental latch is the simple SR latch (or simple SR flip-flop), where S and R stand for set and reset. It can be constructed from a pair of cross-coupled NOR (negative OR) logic gates. The stored bit is present on the output marked Q.
Normally, in storage mode, the S and R input
I’m not sure whether the latch u’ve mentioned in the question is the same i’m thinking of.
In digital electronics a latch is composed of 4 NAND/NOR gates whose outputs are connected in such a manner that the 1/0 bit that is given as input can be stored. In fact NAND/NOR gates that have no memory( generally) can have it , but only if the outputs are connected in ‘that’ manner.
Digital Electronics by Ronald.J.Tocci is a v.gud book for reference,for getting your basics clear and right..
