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 […]
Tag: race condition
Timing Problem in Latches
Well in sequential circuits, paths exit between latches through combinational circuits from one latch to other or from output of latch to input of same latch. When we give a feed back to input of same latch then we face a timing problem as shown: Suppose we have the following circuit: In this circuit when […]
RS Flip flop
When R=0, S=0 we don’t have a change in the output in the circuit. When R=0, S=1 we have output as Q=1 and Q bar = 0 When R=1, S=0 we have the output as Q=0 and Q bar = 1 But when we have R=1, S=1, both R and S make outputs of their […]