Building Synchronous Circuits

• We will use edge-triggered flip-flops exclusively

  • Found in programmable logic devices
  • Other possibilities later
    • latches
    • RS/T/JK
    • positive/negative edge-triggered flip-flops

• Basic rules for correct timing:

  • Flip-flops are all clocked by the same clock
    • Key: propagation delay > hold time

Previous slide

Next slide

Back to first slide

View graphic version