SR and JK Flip Flops

Which of these are required inputs in a JK flip flop?

• Input J

• Input K

• Clock

• Input S

• Input R

Which type of flip flop can be unstable?

• SR

• JK

What are flip flops used for?

• Used in RAM

• Storing a single bit of data

• Used in Hard Drives

• Used in registers

What is the purpose of the clock input in a JK flip flop?

• Ensures that the circuit remains stable at the start of each clock cycle

• Provides a pulse to ensure syncronisation

• Provides a time stamp for each state change

• Ensures that the circuit can be reset if it ever becomes unstable

What do the S and R stand for in a SR flip flop?'

• S=set

• S=start

• R= reset

• R=run

Which logoc gates can be used to create an SR flip flop?

• 2 AND gates

• 2 OR gates

• 2 NAND gates

• 2 NOR gates

• 2 XOR gates

In a flip flop circuits the outputs should be

• different from each other

• the same

• the same or different

A circuit which uses feedback from the outputs to the inputs is

• sequential

• combinational

• augmented

• reversed

In order to predict the next outputs of a flip flop circuit, we need to know

• the current inputs

• the current outputs

• whether NOR gates or NAND gates are being used

Which circuit is shown here?

• SR flip flop

• SR Gated latch

• JK flip flop

• Delay Flip Flop