描述：Notes: 3. VIL(min.) = −2.0V for pulse durations less than 20 ns., VIH(max.) = Vcc+0.75V for pulse durations less than 20 ns. 4. Full device operation requires linear ramp of Vcc from 0V to Vcc(min) and Vcc must be stable at Vcc(min) for 500 µ s. 5. Typical values are included for reference only and are not guaranteed or tested. Typical values are measured at VCC = VCC(typ), TA = 25C. 6. Tested initially and after any design or proces changes that may affect these parameters.