Cascaded Sequencer

Cascaded Sequencer

Timing Functions Application

Sequencers are used when a designer needs to sequentially activate different portions of a system. This can be critical for applications that require several power rails. It is typical to have a cascaded sequence, such that a rail does not turn off until all the rails below it have turned off.

 

Necessary Components

  • Any GreenPAK
  • No other components are needed

GreenPAK Diagram

Design Steps

  1. Configure input structure.  Here you can select between level and latching control with Pin#17.
  2. Multiplex inputs to DLYs within a Multi-function block to achieve a cascaded effect.
  3. Connect the DLY outputs to push pull output pins.

Resources

GreenPAK Designer files