전자부품 데이터시트 검색엔진 |
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74VHCT374ASJ 데이터시트(PDF) 4 Page - Fairchild Semiconductor |
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74VHCT374ASJ 데이터시트(HTML) 4 Page - Fairchild Semiconductor |
4 / 8 page www.fairchildsemi.com 4 AC Electrical Characteristics Note 8: Parameter guaranteed by design. tOSLH |tPLH max tPLH min|; tOSHL |tPHL max tPHL min| 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 F/F). The total CPD when n pcs. of the octal D Flip-Flop operates can be calculated by the equation: CPD(total) 20 12m. AC Operating Requirements Symbol Parameter VCC (V) TA 25qCTA 40qC to 85qC Units Conditions Min Typ Max Min Max tPLH Propagation Delay Time 5.0 r 0.5 4.1 9.4 1.0 10.5 ns CL 15 pF tPHL 5.6 10.4 1.0 11.5 CL 50 pF tPZL 3-STATE Output Enable Time 5.0 r 0.5 6.5 10.2 1.0 11.5 ns RL 1 k: CL 15 pF tPZH 7.3 11.2 1.0 12.5 CL 50 pF tPLZ 3-STATE Output Disable Time 5.0 r 0.5 7.0 11.2 1.0 12.0 ns RL 1 k: CL 50 pF tPHZ tOSLH Output to Output Skew 5.0 r 0.5 1.0 1.0 (Note 8) tOSHL fMAX Maximum Clock Frequency 5.0 r 0.5 90 140 80 MHz CL 15 pF 85 130 75 CL 50 pF CIN Input 4 10 10 pF VCC Open Capacitance COUT Output Capacitance 9 pF VCC 5.0V CPD Power Dissipation Capacitance 25 pF (Note 9) Symbol Parameter VCC (V) TA 25qCTA 40qC to 85qC Units Min Typ Max Min Max tW(H) Minimum Pulse 5.0 r 0.5 6.5 8.5 ns tW(L) Width (CP) tS Minimum Set-up Time 5.0 r 0.5 2.5 2.5 ns tH Minimum Hold Time 5.0 r 0.5 2.5 2.5 |
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