Sequential Logic

• Combinational logic:

  • Compute a function all at one time
  • Fast/expensive
  • e.g. combinational multiplier

• Sequential logic:

  • Compute a function in a series of steps
  • Slower/more efficient
  • e.g. shift/add multiplier

• Key to sequential logic: circuit has feedback

  • Use the result of one step as an input to the next

Next slide

Back to first slide

View graphic version