SPRS377F September 2008 – June 2014 TMS320C6745 , TMS320C6747
PRODUCTION DATA.
All input and output timing parameters are referenced to Vref for both "0" and "1" logic levels. For 3.3 V I/O, Vref = 1.65 V. For 1.8 V I/O, Vref = 0.9 V. For 1.2 V I/O, Vref = 0.6 V.
Figure 6-2 Input and Output Voltage Reference Levels for AC Timing Measurements All rise and fall transition timing parameters are referenced to VIL MAX and VIH MIN for input clocks, VOLMAX and VOH MIN for output clocks.
Figure 6-3 Rise and Fall Transition Time Voltage Reference Levels