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74LVX238MTR Folha de dados(PDF) 5 Page - STMicroelectronics |
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74LVX238MTR Folha de dados(HTML) 5 Page - STMicroelectronics |
5 / 12 page 74LVX238 5/12 Table 9: 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 x VCC x fIN + ICC Figure 4: Test Circuit CL =15/50pF or equivalent (includes jig and probe capacitance) RT = ZOUT of pulse generator (typically 50Ω) Figure 5: Waveform - Propagation Delays For Inverting Outputs (f=1MHz; 50% duty cycle) Symbol Parameter Test Condition Value Unit VCC (V) TA = 25°C -40 to 85°C -55 to 125°C Min. Typ. Max. Min. Max. Min. Max. CIN Input Capacitance 3.3 4 10 10 10 pF CPD Power Dissipation Capacitance (note 1) 3.3 fIN = 10MHz 34 pF |
Nº de peça semelhante - 74LVX238MTR |
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Descrição semelhante - 74LVX238MTR |
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