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74LVX273TTR Fiches technique(PDF) 5 Page - STMicroelectronics |
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74LVX273TTR Fiches technique(HTML) 5 Page - STMicroelectronics |
5 / 12 page 74LVX273 5/12 Table 4: 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 ad. (Refer to Test Circuit). Average operating current can be obtained by the following equation. ICC(opr) = CPD x VCC x fIN + ICC/8 (per circuit) Figure 5: Test Circuit CL =15/50pF or equivalent (includes jig and probe capacitance) RT = ZOUT of pulse generator (typically 50Ω) Figure 6: Waveform - Propagation Delays (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 5 10 10 10 pF CPD Power Dissipation Capacitance (note 1) 3.3 fIN = 10MHz 40 pF |
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