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MC74LCX244MELG Datasheet(PDF) 5 Page - ON Semiconductor |
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MC74LCX244MELG Datasheet(HTML) 5 Page - ON Semiconductor |
5 / 9 page MC74LCX244 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 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 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 VCC 0 V VOH VOL 1Dn, 2Dn 1On, 2On tPHL tPLH VCC 0 V ≈ 0 V 1OE, 2OE 1On, 2On tPZH ≈ 3.0 V tPHZ tPZL tPLZ 1On, 2On Vmo Vmo Vmi Vmi Vmo Vmo Figure 3. AC Waveforms Vmi VCC VOH − 0.3 V VOL + 0.3 V GND WAVEFORM 1 − PROPAGATION DELAYS tR = tF = 2.5 ns, 10% to 90%; f = 1 MHz; tW = 500 ns WAVEFORM 2 − OUTPUT ENABLE AND DISABLE TIMES tR = tF = 2.5 ns, 10% to 90%; f = 1 MHz; tW = 500 ns Symbol VCC 3.3 V ± 0.3 V 2.7 V 2.5 V ± 0.2 V Vmi 1.5 V 1.5 V VCC/2 Vmo 1.5 V 1.5 V VCC/2 VHZ VOL + 0.3 V VOL + 0.3 V VOL + 0.15 V VLZ VOH − 0.3 V VOH − 0.3 V VOH − 015 V Vmi |
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