Blog: What is meant by D in gated D latch and what is the fuction of this D input. What is the basic difference between latchs and flip-flops?

What is meant by D in gated D latch and what is the fuction of this D input. What is the basic difference between latchs and flip-flops?

The 'D' in 'Gated D Latch' stands for 'Data'.

Unlike 'S-R Latch' Gated D Latch has only one input ,which is D(data) Input. Whcih will give the output of the latch depending on the 'EN' (enable) state of the latch.

To understand latches and flip-flops lets consider a basic fact about the whole DLD

In the same way that gates are the building blocks of combinatorial circuits, latches and flip-flops are the building blocks of sequential circuits. While gates had to be built directly from transistors, latches can be built from gates, and flip-flops can be built from latches.

Both latches and flip-flops are circuit elements whose output depends not only on the current inputs, but also on previous inputs and outputs. The difference between a latch and a flip-flop is that a latch does not have a clock signal, whereas a flip-flop always does Latches are asynchronous, which means that the output changes very soon after the input changes. A flip-flop is a synchronous version of the latch.