Flip-Flops and Latches

--- A Flip Flop is a basic bistable sequential logic circuit that can store one bit of binary information (either 0 or 1). It has two stable states and can remain in either state indefinitely until a triggering signal (clock pulse) causes it to change state...

S R Q(next) Remarks ------------------------ 0 0 Q No change 0 1 0 Reset 1 0 1 Set 1 1 X Forbidden J K Q(next) Remarks ------------------------ 0 0 Q No change 0 1 0 Reset 1 0 1 Set 1 1 Q' Toggle --- The key difference is that JK = 11 toggles the output, wh...

--- The clocked (synchronous) RS flip flop has the following major drawbacks: 1. Forbidden/Invalid State (S=1, R=1): When both inputs S and R are simultaneously HIGH (S=1, R=1), the output becomes indeterminate or unpredictable (Q and Q' both try to become ...

A JK flip flop is an improved version of the SR flip flop that eliminates the invalid/indeterminate state. It has two inputs: J (Set) and K (Reset), along with a Clock input and outputs Q and Q'. --- Internal Gate Implementation: --- CLK J K Q(next) Operati...

A Master-Slave J-K flip-flop is a cascaded combination of two clocked SR flip-flops (or J-K stages) connected in series, designed to eliminate the race-around condition (indeterminate state) that occurs in a simple clocked J-K flip-flop when J = K = 1. --- ...

Note: No specific reference notes were found for this topic. The following answer is based on standard digital electronics curriculum as taught in TU BSc CSIT. --- A JK Master-Slave Flip-Flop is a level-triggered, edge-sensitive bistable device that elimina...

In an SR (Set-Reset) flip-flop, the inputs S and R must not be applied simultaneously as logic 1. When S = 1 and R = 1 at the same time, the output becomes indeterminate (unpredictable): both Q and Q' try to become 1 simultaneously, which is a logical contr...

A clocked RS flip-flop (also called a synchronous RS flip-flop or gated SR latch) is a sequential logic circuit that has an additional clock (CLK) input which controls when the flip-flop responds to its S (Set) and R (Reset) inputs. The output changes state...

An SR Latch (Set-Reset Latch) is a basic bistable multivibrator circuit that can store one bit of information. It has two inputs: - S (Set) - used to set the output Q to 1 - R (Reset) - used to reset the output Q to 0 It has two complementary outputs: Q and...

A D flip-flop (Data or Delay flip-flop) is a clocked sequential logic device that captures the value of the input D at a specific edge of the clock signal and holds (stores) that value until the next active clock edge. --- The D flip-flop eliminates the inv...

Note: No curriculum notes were found for this topic. The following answer is based on standard digital electronics content as taught in BSc CSIT curriculum. --- A race condition (also called racing or critical race) in a JK flip-flop occurs when both inputs...