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74LCX74BQX Scheda tecnica(PDF) 4 Page - Fairchild Semiconductor |
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74LCX74BQX Scheda tecnica(HTML) 4 Page - Fairchild Semiconductor |
4 / 11 page www.fairchildsemi.com 4 AC Electrical Characteristics Note 6: Skew is defined as the absolute value of the difference between the actual propagation delay for any two separate outputs of the same device. The specification applies to any outputs switching in the same direction, either HIGH-to-LOW (tOSHL) or LOW-to-HIGH (tOSLH). Dynamic Switching Characteristics Capacitance Symbol Parameter TA 40qC to 85qC, RL 500: Units VCC 3.3V r 0.3V VCC 2.7V VCC 2.5V r 0.2V CL 50 pF CL 50 pF CL 30 pF Min Max Min Max Min Max fMAX Maximum Clock Frequency 150 150 150 MHz tPHL Propagation Delay 1.5 7.0 1.5 8.0 1.5 8.4 ns tPLH CPn to Qn or Qn 1.57.0 1.58.0 1.58.4 tPHL Propagation Delay 1.5 7.0 1.5 8.0 1.5 8.4 ns tPLH CDn or SDn to Qn or Qn 1.57.0 1.58.0 1.58.4 tS Setup Time 2.5 2.5 4.0 ns tH Hold Time 1.5 1.5 2.0 ns tW Pulse Width CP 3.3 3.3 4.0 ns tW Pulse Width and CD, SD 3.3 3.6 4.0 ns tREC Recovery Time 2.5 3.0 4.5 ns tOSHL Output to Output Skew 1.0 ns tOSLH (Note 6) 1.0 Symbol Parameter Conditions VCC (V) TA 25qC Unit Typical VOLP Quiet Output Dynamic Peak VOL CL 50 pF, VIH 3.3V, VIL 0V 3.3 0.8 V CL 30 pF, VIH 2.5V, VIL 0V 2.5 0.6 VOLV Quiet Output Dynamic Peak VOL CL 50 pF, VIH 3.3V, VIL 0V 3.3 0.8 V CL 30 pF, VIH 2.5V, VIL 0V 2.5 0.6 Symbol Parameter Conditions Typical Units CIN Input Capacitance VCC Open, VI 0V or VCC 7pF COUT Output Capacitance VCC 3.3V, VI 0V or VCC 8pF CPD Power Dissipation Capacitance VCC 3.3V, VI 0V or VCC, f 10 MHz 25 pF |
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