In order to understand all of SDF syntax,
please refer to IEEE Standard 1497-2001 for SDF (standard delay format.)
------------------------------------------------------------------------------------------
cell reference name is "AOI21X1"
cell instance name is "DTMF_INST/ULAW_LIN_CONV_INST/i_150"
Delay type is absolute, not incremental.
The max 0->1 delay from A0 pin to Y pin is 0.3143
The typical 0->1 delay from A0 pin to Y pin is 0.3143
The min 0->1 delay from A0 pin to Y pin is 0.3143
The max 1->0 delay from A0 pin to Y pin is 0.2021
The typical 1->0 delay from A0 pin to Y pin is 0.2021
The min 1->0 delay from A0 pin to Y pin is 0.2021