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MC74VHC08 데이터시트(PDF) 3 Page - ON Semiconductor |
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MC74VHC08 데이터시트(HTML) 3 Page - ON Semiconductor |
3 / 6 page MC74VHC08 http://onsemi.com 3 AC ELECTRICAL CHARACTERISTICS (Input tr = tf = 3.0 ns) Symbol Parameter Test Conditions TA = 25°C TA = − 40 to 85°C Unit Min Typ Max Min Max tPLH, tPHL Maximum Propagation Delay, A or B to Y VCC = 3.3 ± 0.3 V CL = 15 pF CL = 50 pF 6.2 8.7 8.8 12.3 1.0 1.0 10.5 14.0 ns VCC = 5.0 ± 0.5 V CL = 15 pF CL = 50 pF 4.3 5.8 5.9 7.9 1.0 1.0 7.0 9.0 Cin Maximum Input Capacitance 4 10 10 pF CPD Power Dissipation Capacitance (Note 1) Typical @ 25 °C, VCC = 5.0 V pF 18 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 / 4 (per gate). CPD is used to determine the no−load dynamic power consumption; PD = CPD VCC2 fin + ICC VCC. NOISE CHARACTERISTICS (Input tr = tf = 3.0 ns, CL = 50 pF, VCC = 5.0 V) Symbol Characteristic TA = 25°C Unit Typ Max VOLP Quiet Output Maximum Dynamic VOL 0.3 0.8 V VOLV Quiet Output Minimum Dynamic VOL −0.3 −0.8 V VIHD Minimum High Level Dynamic Input Voltage 3.5 V VILD Maximum Low Level Dynamic Input Voltage 1.5 V Figure 3. Switching Waveforms Y A or B 50% VCC tPLH tPHL GND VCC 50% CL* *Includes all probe and jig capacitance TEST POINT DEVICE UNDER TEST OUTPUT Figure 4. Test Circuit Figure 5. Input Equivalent Circuit INPUT |
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