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74VHC74MX_NL Scheda tecnica(PDF) 4 Page - Fairchild Semiconductor |
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74VHC74MX_NL Scheda tecnica(HTML) 4 Page - Fairchild Semiconductor |
4 / 8 page www.fairchildsemi.com 4 AC Electrical Characteristics Note 5: CPD is defined as the value of the internal equivalent capacitance which is calculated from the operating current consumption without load. Average operating current can be obtained from the equation: ICC (opr.) CPD * VCC * fIN ICC/2 (per F/F). AC Operating Requirements Note 6: VCC is 3.3 r 0.3V or 5.0 r 0.5V Symbol Parameter VCC (V) TA 25qCTA 40qC to 85qC Units Conditions Min Typ Max Min Max fMAX Maximum Clock 3.3 r 0.3 80 125 70 MHz CL 15 pF Frequency 50 75 45 CL 50 pF 5.0 r 0.5 130 170 110 MHz CL 15 pF 90 115 75 CL 50 pF tPLH Propagation Delay 3.3 r 0.3 6.7 11.9 1.0 14.0 ns CL 15 pF tPHL Time (CK-Q, Q) 9.2 15.4 1.0 17.5 CL 50 pF 5.0 r 0.5 4.6 7.3 1.0 8.5 ns CL 15 pF 6.1 9.3 1.0 10.5 CL 50 pF tPLH Propagation Delay Time 3.3 r 0.3 7.6 12.3 1.0 14.5 ns CL 15 pF tPHL (CLR, PR -Q, Q) 10.1 15.8 1.0 18.0 CL 50 pF 5.0 r 0.5 4.8 7.7 1.0 9.0 ns CL 15 pF 6.3 9.7 1.0 11.0 CL 50 pF CIN Input Capacitance 4 10 10 pF VCC Open CPD Power Dissipation 25 pF (Note 5) Capacitance Symbol Parameter VCC (V) (Note 6) TA 25qCTA 40qC to 85qC Units Typ Guaranteed Minimum tW(L) Minimum Pulse Width (CK) 3.3 6.0 7.0 ns tW(H) 5.0 5.0 5.0 tW(L) Minimum Pulse Width (CLR,PR) 3.3 6.0 7.0 ns 5.0 5.0 5.0 tS Minimum Setup Time 3.3 6.0 7.0 ns 5.0 5.0 5.0 tH Minimum Hold Time 3.3 0.5 0.5 ns 5.0 0.5 0.5 tREC Minimum Recovery Time (CLR,PR) 3.3 5.0 5.0 ns 5.0 3.0 3.0 |
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