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MC74LCX125 Datasheet(PDF) 5 Page - ON Semiconductor |
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MC74LCX125 Datasheet(HTML) 5 Page - ON Semiconductor |
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5 / 8 page 
MC74LCX125 http://onsemi.com 5 WAVEFORM 1 − PROPAGATION DELAYS tR = tF = 2.5 ns, 10% to 90%; f = 1 MHz; tW = 500 ns VCC 0 V VOH VOL Dn On tPHL tPLH WAVEFORM 2 − OUTPUT ENABLE AND DISABLE TIMES tR = tF = 2.5 ns, 10% to 90%; f = 1 MHz; tW = 500 ns VCC 0 V ≈ 0 V OEn On tPZH ≈ 3.0 V tPHZ tPZL tPLZ On Vmi Vmi Vmo Vmo Figure 3. AC Waveforms VCC VOH − 0.3 V VOL + 0.3 V GND 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 Vmi Vmi Vmo Vmo PULSE GENERATOR RT DUT VCC RL CL CL = 50 pF at VCC = 3.3 0.3 V or equivalent (includes jig and probe capacitance) CL = 30 pF at VCC = 2.5 0.2 V or equivalent (includes jig and probe capacitance) RL = R1 = 500 W or equivalent RT = ZOUT of pulse generator (typically 50 W) Figure 4. Test Circuit |
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