link to page 3 MC74VHC04AC ELECTRICAL CHARACTERISTICS (Input tr = tf = 3.0ns) TA = 25 ° CTA = −40 to 85 ° CSymbolParameterTest ConditionsMinTypMaxMinMaxUnit tPLH, Maximum Propagation Delay, VCC = 3.3 ± 0.3V CL = 15pF 5.0 7.1 1.0 8.5 ns tPHL A or B to Y CL = 50pF 7.5 10.6 1.0 12.0 VCC = 5.0 ± 0.5V CL = 15pF 3.8 5.5 1.0 6.5 CL = 50pF 5.3 7.5 1.0 8.5 Cin Maximum Input Capacitance 4 10 10 pF Typical @ 25 ° C, VCC = 5.0V CPD Power Dissipation Capacitance (Per Inverter) (Note 1) 18 pF 1. CPD is defined as the value of the internal equivalent capacitance which is calculated from the operating current consumption without load. Average operating current can be obtained by the equation: ICC(OPR) = CPD VCC fin + ICC/6 (per buffer). CPD is used to determine the no−load dynamic power consumption; P 2 D = CPD VCC fin + ICC VCC. NOISE CHARACTERISTICS (Input tr = tf = 3.0ns, CL = 50pF, VCC = 5.0V) TA = 25 ° CSymbolCharacteristicTypMaxUnit VOLP Quiet Output Maximum Dynamic VOL 0.4 0.8 V VOLV Quiet Output Minimum Dynamic VOL −0.4 −0.8 V VIHD Minimum High Level Dynamic Input Voltage 3.5 V VILD Maximum Low Level Dynamic Input Voltage 1.5 V TEST POINT VCC A OUTPUT 50% GND DEVICE UNDER t t PLH PHL CL* TEST Y 50% VCC *Includes all probe and jig capacitance Figure 3. Switching WaveformsFigure 4. Test Circuit INPUT Figure 5. Input Equivalent Circuitwww.onsemi.com3