Available from SynaptiCAD the Timing Diagram Editor Company
Timing Diagrammer Pro is a feature-laden timing diagram editor with an unbeatable price. Analyze your design in the early stages, before you have a schematic. Perform true full-range min/max timing analysis to eliminate all timing violations and race conditions. Timing Diagrammer Pro automatically calculates critical paths and adjusts for reconvergent fanout. Inserting diagrams into word processors is painless, thanks to a variety of image capture formats.