Note that we need the width of PRESET pulse, CLEAR pulse etc to be greater than some minimum values for proper operation of every flip-flop. This width is measured between 50% transition points of rising and trailing edges of the given signal. Setup and Hold time are measured w.r.t the activating clock edge. The Setup time is the […]
Tag: preset
Asynchronous Inputs
There are two special inputs which are used to clear and preset the value of the flip-flop asynchronously which are usually called CLEAR and PRESET respectively. These inputs are called asynchronous or direct inputs because these signal don’t wait for the clock to come but can affect the output independent of the clock. These inputs can be of two […]