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74LX1G03 数据表(PDF) 4 Page - STMicroelectronics |
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74LX1G03 数据表(HTML) 4 Page - STMicroelectronics |
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4 / 10 page ![]() 74LX1G03 4/10 AC ELECTRICAL CHARACTERISTICS CAPACITIVE 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 operating 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. tPLZ Propagation Delay Time 1.65 to 1.95 30 1000 2.0 2.4 8.3 2.4 8.3 ns 2.3 to 2.7 30 500 2.0 1.0 5.5 1.0 5.5 2.7 50 500 2.5 1.0 5.5 1.0 5.5 3.0 to 3.6 50 500 2.5 1.5 4.2 1.5 4.2 4.5 to 5.5 50 500 2.5 1 3.5 1 3.5 tPZL Propagation Delay Time 1.65 to 1.95 30 1000 2.0 2.4 8.3 2.4 8.3 ns 2.3 to 2.7 30 500 2.0 1.0 5.5 1.0 5.5 2.7 50 500 2.5 1.0 5.5 1.0 5.5 3.0 to 3.6 50 500 2.5 1.5 4.2 1.5 4.2 4.5 to 5.5 50 500 2.5 1 3.5 1 3.5 Symbol Parameter Test Condition Value Unit VCC (V) TA =25°C Min. Typ. Max. CIN Input Capacitance VIN =0 or VCC 4pF COUT Output Capacitance VIN =0 or VCC 510 pF CPD Power Dissipation Capacitance (note 1) 1.8 fIN =10MHz 21 pF 2.5 24 3.3 26 |
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