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MC74AC273M Datasheet(PDF) 4 Page - ON Semiconductor |
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MC74AC273M Datasheet(HTML) 4 Page - ON Semiconductor |
4 / 7 page MC74AC273, MC74ACT273 http://onsemi.com 4 AC CHARACTERISTICS (For Figures and Waveforms – See Section 3 of the ON Semiconductor FACT Data Book, DL138/D) 74AC 74AC Symbol Parameter VCC* (V) TA = +25°C CL = 50 pF TA = –40°C to +85 °C CL = 50 pF Unit Fig. No. Min Typ Max Min Max fmax Maximum Clock 3.3 90 125 – 75 – Mhz 3–3 fmax Frequency 5.0 140 175 – 125 – Mhz 3–3 tPLH Propagation Delay 3.3 4.0 7.0 12.5 3.0 14.0 ns 3–6 tPLH Clock to Output 5.0 3.0 5.5 9.0 2.5 10.0 ns 3–6 tPHL Propagation Delay 3.3 4.0 7.0 13.0 3.5 14.5 ns 3–6 tPHL Clock to Output 5.0 3.0 5.0 10.0 2.5 11.0 ns 3–6 tPHL Propagation Delay 3.3 4.0 7.0 13.0 3.5 14.0 ns 3–6 tPHL MR to Output 5.0 3.0 5.0 10.0 2.5 10.5 ns 3–6 *Voltage Range 3.3 V is 3.3 V ±0.3 V. Voltage Range 5.0 V is 5.0 V ±0.5 V. AC OPERATING REQUIREMENTS 74AC 74AC Symbol Parameter VCC* (V) TA = +25°C CL = 50 pF TA = –40°C to +85 °C CL = 50 pF Unit Fig. No. Typ Guaranteed Minimum ts Setup Time, HIGH or LOW 3.3 3.5 5.5 6.0 ns 3–9 ts Data to CP 5.0 2.5 4.0 4.5 ns 3–9 th Hold Time, HIGH or LOW 3.3 –2.0 0 0 ns 3–9 th Data to CP 5.0 –1.0 1.0 1.0 ns 3–9 t Clock Pulse Width 3.3 3.5 5.5 6.0 ns 3–6 tw HIGH or LOW 5.0 2.5 4.0 4.5 ns 3–6 tw MR Pulse Width 3.3 2.0 5.5 6.0 ns 3–6 tw HIGH or LOW 5.0 1.5 4.0 4.5 ns 3–6 trec Recovery Time 3.3 1.5 3.5 4.5 ns 3–9 trec MR to CP 5.0 1.0 2.0 3.0 ns 3–9 *Voltage Range 3.3 V is 3.3 V ±0.3 V. Voltage Range 5.0 V is 5.0 V ±0.5 V. |
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