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MC74LCX74 Datasheet(PDF) 5 Page - ON Semiconductor |
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MC74LCX74 Datasheet(HTML) 5 Page - ON Semiconductor |
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5 / 8 page 
MC74LCX74 http://onsemi.com 5 DYNAMIC SWITCHING CHARACTERISTICS TA = +25°C Symbol Characteristic Condition Min Typ Max Unit VOLP Dynamic LOW Peak Voltage (Note 4) VCC = 3.3 V, CL = 50 pF, VIH = 3.3 V, VIL = 0 V VCC = 2.5 V, CL = 30 pF, VIH = 2.5 V, VIL = 0 V 0.8 0.6 V V VOLV Dynamic LOW Valley Voltage (Note 4) VCC = 3.3 V, CL = 50 pF, VIH = 3.3 V, VIL = 0 V VCC = 2.5 V, CL = 30 pF, VIH = 2.5 V, VIL = 0 V −0.8 −0.6 V V 4. Number of outputs defined as “n”. Measured with “n−1” outputs switching from HIGH−to−LOW or LOW−to−HIGH. The remaining output is measured in the LOW state. CAPACITIVE CHARACTERISTICS Symbol Parameter Condition Typical Unit CIN Input Capacitance VCC = 3.3 V, VI = 0 V or VCC 7 pF COUT Output Capacitance VCC = 3.3 V, VI = 0 V or VCC 8 pF CPD Power Dissipation Capacitance 10 MHz, VCC = 3.3 V, VI = 0 V or VCC 25 pF Figure 3. AC Waveforms WAVEFORM 2 − PROPAGATION DELAYS tR = tF = 2.5 ns, 10% to 90%; f = 1 MHz; tW = 500 ns Vcc 0 V SDn CDn 1.5 V On Vcc 0 V VOH Vmo On VOL Vmo Vmo Vmo tPLH tPHL tPHL tPLH WAVEFORM 1 − PROPAGATION DELAYS, SETUP AND HOLD TIMES tR = tF = 2.5 ns, 10% to 90%; f = 1 MHz; tW = 500 ns Vcc 0 V Dn CPn Vmi On, On Vcc 0 V VOH VOL tPLH, tPHL th ts Vmi Vmo fmax tw |
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