Question

Clock

For the circuit above:

a) What is this circuit called?

b) Is this circuit Master/Slave ? Edge Triggered?

c) Explain the operation What happens when the clock is high (give a truth table) What happens when the clock is low (give a truth table)

d) Explain in English how this circuit works

Answer 1

a) The circuit is D-flip flop, without inverter gate if we apply two different inputs then it is SR flip flop. We make D flip flop by connecting on inverter to input to R and direct to S then It is D-flip flop (b) It is not master solve because in master solve two more configuration are required (c) when the clock is high then the maximum possible input of D are 1 (or) 0 if D = 0, clock = 1 if q = 0 \r\n a_n + 1 = 0 after processing we get q_n + 1 = 0 if D = 0, clock = 1, if Q_n = 1 * Here Red colour indicates the flow of bits If D = 1, clock = 1, if Q_n = 0 D = 1 from all \r\n If d = 1, clock -= 0, if Q_n = 0 it mean if clock's is not given (or) clocks low the output is zero. if d = 1, clock = 0, if q_n = 0