6 cells with different drive strengths, each with a P/N ratio of about 2.
The Ramp Rise time reported below is an average of when one or the other
or both of the P-transistors connected to pins
<SPAN CLASS="boldred">a1</SPAN>
and <SPAN CLASS="boldred">a2</SPAN> are on.
The Synopsys Liberty format .lib file has the precise timing for each case.
The aoi22v5x05 is a layout variation of the aoi22v0x05.