EcrioniX

D FLIP-FLOP INTERNALS

Master-Slave Architecture & Timing Analysis

Input Controls

Data Input (D) 0

Click to flip input bit. Try changing just before Clock rises!

Clock (CLK) 0

Timing Concepts

Setup Time (tsu):

Data must be stable before the clock edge. If D changes in this window, the internal Master latch may capture a glitch.

Hold Time (th):

Data must remain stable after the clock edge. Changing D too soon disrupts the Master latch locking process.

MASTER-SLAVE TOPOLOGY
D MASTER (Transparent when CLK=0) D EN Qm SLAVE (Transparent when CLK=1) D EN Q CLK TIMING VIOLATION!
TIMING DIAGRAM
CLK DATA (D) OUTPUT (Q)