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HD74LS74AP Datasheet(PDF) 5 Page - Renesas Technology Corp |
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HD74LS74AP Datasheet(HTML) 5 Page - Renesas Technology Corp |
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5 / 8 page ![]() HD74LS74A Rev.3.00, Jul.22.2005, page 5 of 7 Waveforms 1 tw(H) tPHL VOH VOL 0 V 3 V 0 V 3 V VOH VOL tw(L) tPHL tPLH tPLH 10% 90% 1.3 V 1.3 V 1.3 V 1.3 V 1.3 V 1.3 V 1.3 V 10% 90% Clock D Q Q tTLH tTHL Note: Clock input pulse; tTLH ≤ 15 ns, t THL ≤ 6 ns, PRR = 1 MHz, duty cycle = 50% and for f max, tTLH = tTHL ≤ 2.5 ns Waveforms 2 Clear Preset Q Q VOH VOH VOL VOL 0V 0V 3V 3V 1.3V 1.3V 1.3V 1.3V 1.3V 1.3V tTHL tTLH tw (clear) ≥ 25ns tw (preset) ≥ 25ns tTLH tTHL tPHL tPLH 10% 10% 10% 10% 90% 90% 90% 90% 1.3V 1.3V tPLH tPHL Note: Crear and presel input pulse; tTLH ≤ 15 ns, t THL ≤ 6 ns, PRR = 1 MHz, |
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