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MC74HCT273ADTR2G Datasheet(PDF) 3 Page - ON Semiconductor |
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MC74HCT273ADTR2G Datasheet(HTML) 3 Page - ON Semiconductor |
3 / 6 page MC74HCT273A http://onsemi.com 3 AC ELECTRICAL CHARACTERISTICS (VCC = 5.0 V ± 10%, CL = 50 pF, Input tr = tf = 6.0 ns) Symbol Parameter Fig. Guaranteed Limit Unit −55 to 25 _C ≤ 85_C ≤ 125_C fmax Maximum Clock Frequency (50% Duty Cycle) 2, 5 30 24 20 MHz tPLH, tPHL Maximum Propagation Delay, Clock to Q 2, 5 25 28 35 ns tPHL Maximum Propagation Delay, Reset to Q 25 28 35 ns tTLH, tTHL Maximum Output Transition Time, Any Output 2, 5 18 20 22 ns CPD Power Dissipation Capacitance (Per Gate)* Typical @ 25 °C, VCC = 5.0 V pF 30 * Used to determine the no−load dynamic power consumption: PD = CPD VCC2f + ICC VCC. TIMING REQUIREMENTS (VCC = 5.0 V ±10%, CL = 50 pF, Input tr = tf = 6.0 ns) Symbol Parameter Fig. Guaranteed Limit Unit –55 to 25 _C ≤ 85_C ≤ 125_C Min Max Min Max Min Max tsu Minimum Setup Time, Data to Clock 10 12 15 ns th Minimum Hold Time, Clock to Data 3.0 3.0 3.0 ns trec Minimum Recovery Time, Set or Reset Inactive to Clock 5.0 5.0 5.0 ns tw Minimum Pulse Width, Clock 2 12 15 18 ns tw Minimum Pulse Width, Set or Reset 12 15 18 ns tr, tf Maximum Input Rise and Fall Times 2 500 500 500 ns Figure 2. CLOCK Q tr tf 3.0 V GND 2.7 V 1.3 V 0.3 V 90% 1.3 V 10% tPLH tPHL tTLH tTHL Figure 3. tw 1/fmax RESET Q CLOCK tw 1.3 V 1.3 V 1.3 V 3.0 V GND 3.0 V GND tPHL trec SWITCHING WAVEFORMS |
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