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MC74VHCT14AD Datenblatt(PDF) 3 Page - ON Semiconductor |
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MC74VHCT14AD Datenblatt(HTML) 3 Page - ON Semiconductor |
3 / 8 page MC74VHCT14A VHC Data – Advanced CMOS Logic DL203 — Rev 1 3 MOTOROLA AC ELECTRICAL CHARACTERISTICS (Input tr = tf = 3.0ns) Sb l P T C di i TA = 25°C TA ≤ 85°C TA ≤ 125°C Ui Symbol Parameter Test Conditions Min Typ Max Min Max Min Max Unit tPLH, tPHL Maximum Propagation Delay, A to Y VCC = 3.3 ± 0.3 V CL = 15pF CL = 50pF 8.3 10.8 12.8 16.3 1.0 1.0 15.0 18.5 1.0 1.0 17.0 20.5 ns VCC = 5.0 ± 0.5 V CL = 15pF CL = 50pF 5.5 7.0 8.6 10.6 1.0 1.0 10.0 12.0 1.0 1.0 11.5 13.5 CIN Maximum Input Capacitance 4 10 10 10 pF C PDi i i C i (N 1 ) Typical @ 25 °C, VCC = 5.0 V F CPD Power Dissipation Capacitance (Note 1.) 21 pF 1. CPD is defined as the value of the internal equivalent capacitance which is calculated from the operating current consumption without load. Averageoperatingcurrentcanbeobtainedbytheequation:ICC(OPR)=CPDVCCfin+ICC / 6(perbuffer).CPDisusedtodeterminetheno–load dynamic power consumption; PD = CPD VCC2 fin + ICC VCC. NOISE CHARACTERISTICS (Input tr = tf = 3.0ns, CL = 50pF, VCC = 5.0 V) Sb l Ch i i TA = 25°C Ui Symbol Characteristic Typ Max Unit 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 Figure 1. Switching Waveforms 3.0V GND 1.5V 1.5V A Y tPHL tPLH * Includes all probe and jig capacitance Figure 2. Test Circuit CL* TEST POINT DEVICE UNDER TEST OUTPUT VH Vin Vout VCC VT+ VT– GND VOH VOL VH Vin Vout VCC VT+ VT– GND VOH VOL (a) A Schmitt–Trigger Squares Up Inputs With Slow Rise and Fall Times (b) A Schmitt–Trigger Offers Maximum Noise Immunity Figure 3. Typical Schmitt–Trigger Applications VOH VOL |
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