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MC74HCT273A Datasheet(PDF) 3 Page - Motorola, Inc |
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MC74HCT273A Datasheet(HTML) 3 Page - Motorola, Inc |
3 / 5 page ![]() MC74HCT273A High–Speed CMOS Logic Data DL129 — Rev 6 3 MOTOROLA AC ELECTRICAL CHARACTERISTICS (VCC = 5.0 V ± 10%, CL = 50 pF, Input tr = tf = 6.0 ns) Sb l P Fi Guaranteed Limit Ui Symbol Parameter Fig. – 55 to 25 _C v 85_C v 125_C Unit fmax Maximum Clock Frequency (50% Duty Cycle) 1, 4 30 24 20 MHz tPLH, tPHL Maximum Propagation Delay, Clock to Q 1, 4 25 28 35 ns tPHL Maximum Propagation Delay, Reset to Q 2, 4 25 28 35 ns tTLH, tTHL Maximum Output Transition Time, Any Output 1, 5 18 20 22 ns NOTE: For propagation delays with loads other than 50 pF, and information on typical parametric values, see Chapter 2 of the Motorola High– Speed CMOS Data Book (DL129/D). C PDi i i C i (P G )* Typical @ 25 °C, VCC = 5.0 V F CPD Power Dissipation Capacitance (Per Gate)* 30 pF * Used to determine the no–load dynamic power consumption: PD = CPD VCC2f + ICC VCC. For load considerations, see Chapter 2 of the Motorola High–Speed CMOS Data Book (DL129/D). TIMING REQUIREMENTS (VCC = 5.0 V ± 10%, CL = 50 pF, Input tr = tf = 6.0 ns) Sb l P Fi Guaranteed Limit Ui Sb l P Fi – 55 to 25 _C v 85_C v 125_C Ui Symbol Parameter Fig. Min Max Min Max Min Max Unit tsu Minimum Setup Time, Data to Clock 3 10 12 15 ns th Minimum Hold Time, Clock to Data 3 3.0 3.0 3.0 ns trec Minimum Recovery Time, Set or Reset Inactive to Clock 2 5.0 5.0 5.0 ns tw Minimum Pulse Width, Clock 1 12 15 18 ns tw Minimum Pulse Width, Set or Reset 2 12 15 18 ns tr, tf Maximum Input Rise and Fall Times 1 500 500 500 ns |