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74VHCT540ASJ Scheda tecnica(PDF) 3 Page - Fairchild Semiconductor |
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74VHCT540ASJ Scheda tecnica(HTML) 3 Page - Fairchild Semiconductor |
3 / 7 page 3 www.fairchildsemi.com AC Electrical Characteristics Note 8: Parameter guaranteed by design. tOSLH |tPLHmax tPLHmin|; tOSLH |tPHLmax tPHLmin|. Note 9: 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 by the equation: ICC (opr.) CPD * VCC * fIN ICC/8 (per bit). Symbol Parameter VCC (V) TA 25qCTA 40qC to 85qC Units Conditions Min Typ Max Min Max tPLH Propagation Delay 5.0 r 0.5 5.4 7.4 1.0 8.5 ns CL 15 pF tPHL Time 5.9 8.4 1.0 9.5 CL 50 pF tPZL 3-STATE Output 5.0 r 0.5 8.3 11.3 1.0 13.0 ns RL 1 k: CL 15 pF tPZH Enable Time 8.8 12.3 1.0 14.0 CL 50 pF tPLZ 3-STATE Output 5.0 r 0.5 9.4 11.9 1.0 13.5 ns RL 1 k: CL 50 pF tPHZ Disable Time tOSLH Output to Output 5.0 r 0.5 1.0 1.0 ns (Note 8) CL 50 pF tOSHL Skew CIN Input Capacitance 4 10 10 pF VCC Open COUT Output Capacitance 9 pF VCC 5.0V CPD Power Dissipation Capacitance 19 pF (Note 9) |
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