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74VHCT74AM Datasheet(PDF) 4 Page - Fairchild Semiconductor |
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74VHCT74AM Datasheet(HTML) 4 Page - Fairchild Semiconductor |
4 / 8 page www.fairchildsemi.com 4 AC Electrical Characteristics Note 7: VCC is 5.0 r 0.5V Note 8: CPD is defined as the value of internal equivalent capacitance which is calculated from the operating current consumption without load. Average operating current can be obtained by the equation: ICC (opr) CPD u VCC u fIN ICC/2 (per flip-flop). AC Operating Requirements Symbol Parameter VCC (V) (Note 7) TA 25qCTA 40qC to 85qC Units Conditions Min Typ Max Min Max fMAX Maximum Clock 5.0 100 160 80 MHz CL 15 pF Frequency 5.0 80 140 65 CL 50 pF tPLH Propagation Delay Time 5.0 5.8 7.8 1.0 9.0 ns CL 15 pF tPHL (CK-Q, Q) 5.0 6.3 8.8 1.0 10.0 CL 50 pF tPLH Propagation Delay time 5.0 7.6 10.4 1.0 12.0 ns CL 15 pF tPHL (CLR, PR -Q, Q) 5.0 8.1 11.4 1.0 13.0 CL 50 pF CIN Input Capacitance 4 10 10 pF VCC Open CPD Power Dissipation Capacitance 24 pF (Note 8) Symbol Parameter VCC TA 25qCTA 40qC to 85qC Units (V) Typ Guaranteed Minimum tW(L) Minimum Pulse Width (CK) 5.0 r 0.5 5.0 5.0 ns tW(H) tW(L) Minimum Pulse Width 5.0 r 0.5 5.0 5.0 ns (CLR, PR) tS Minimum Setup Time 5.0 r 0.5 5.0 5.0 ns tH Minimum Hold Time 5.0 r 0.5 0 0 ns tREM Minimum Removal Time 5.0 r 0.5 3.5 3.5 ns (CLR, PR) |
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