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74LX1G04 数据表(PDF) 4 Page - STMicroelectronics |
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74LX1G04 数据表(HTML) 4 Page - STMicroelectronics |
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4 / 13 page ![]() 74LX1G04 4/13 AC ELECTRICAL CHARACTERISTICS CAPACITANCE CHARACTERISTICS 1) CPD is defined as the value of the IC’s internal equivalent capacitance which is calculated from the operating current consumption without load. (Refer to Test Circuit). Average current can be obtained by the following equation. ICC(opr) =CPD xVCC xfIN +ICC Symbol Parameter Test Condition Value Unit VCC (V) CL (pF) RL ( Ω) ts = tr (ns) -40to 85°C -55 to 125 °C Min. Max. Min. Max. tPLH tPHL Propagation Delay Time 1.65 to 1.95 15 1M Ω 2.0 29.5 2 10.5 ns 2.3 to 2.7 26.527.6 3.0 to 3.6 15.516.5 4.5 to 5.5 14.115.5 1.65 to 1.95 30 1000 2.0 2 10.5 2 11.5 2.3 to 2.7 30 500 2.0 2 7.5 2 8.5 2.7 50 500 2.5 1 6.1 1 7.1 3.0 to 3.6 50 500 2.5 1 5.5 1 6.5 4.5 to 5.5 50 500 2.5 1 4.2 1 5.2 Symbol Parameter Test Condition Value Unit VCC (V) TA =25°C Min. Typ. Max. CIN Input Capacitance 04 pF CPD Power Dissipation Capacitance (note 1) 1.8 fIN =10MHz 36.8 pF 2.5 37 3.3 38 |
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