Features TimeGen (Lite) TimeGen (Professional)
Draw high, low, middle-Z, and bus
Signals can have ideal / non ideal attributes
Modify signal and text font type, size, and color
Text box tool
Support for divided clocks
Draw bezier arrows
Draw straight arrows  
Draw angled arrows  
Draw free floating arrows (snap to grid on/off)  
Arrows/Labels snap to top, 10, 20, 25, 75, 80, 90, bottom  
Draw setup/hold labels with text attachments  
Asynchronous clock support  
Independent delay control per cycle  
Support for separators between signals  
Flood fill (invalid region) tool  
Timebreak tool  
Modify clock duty cycle  
Export/Import XML (ascii)  
Export/Import SVG