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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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ST4G3234 датащи(PDF) 6 Page - STMicroelectronics |
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ST4G3234 датащи(HTML) 6 Page - STMicroelectronics |
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6 / 11 page  ST4G3234 6/11 Table 9: 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 x VCC x fIN + ICC/4 (per circuit) Figure 4: Test Circuit CL = 30pF or equivalent (includes jig and probe capacitance) RL = R1 = 500Ω or equivalent RT = ZOUT of pulse generator (typically 50Ω) Table 10: Waveform Symbol Value Symbol Parameter Test Condition Value Unit VCCB (V) VCCA (V) TA = 25 °C -40 to 85 °C Min. Typ. Max. Min. Max. CINB Input Capacitance open open 7 pF CO Output Capacitance 2.5 3.3 9 pF CPD Power Dissipation Capacitance 2.5 3.3 f=10MHz 28 pF 1.8 3.3 28 1.4 2.5 25 1.4 1.8 21 3.3 1.8 28 TEST SWITCH tPLH, tPHL Open Symbol VCC 3.0 to 3.6V 2.3 to 2.7V 1.65 to 1.95V VIH VCC VCC VCC VM 1.5V VCC/2 VCC/2 VX VOL +0.3V VOL +0.15V VOL +0.15V VY VOL -0.3V VOL -0.15V VOL -0.15V |
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