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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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SMCXXXBF датащи(PDF) 22 Page - STMicroelectronics |
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SMCXXXBF датащи(HTML) 22 Page - STMicroelectronics |
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22 / 91 page  Electrical interface SMCxxxBF 22/91 4.2 Electrical Specification Table 10 defines the DC Characteristics for the CompactFlash Memory Card. Unless otherwise stated, conditions are: ● VCC = 5V ± 10% ● VCC = 3.3V ± 5% ● -40 °C to 85 °C Table 11 shows that the Card operates correctly in both the voltage ranges and that the current requirements must not exceed the maximum limit shown. 4.3 Current Measurement The current is measured by connecting an amp meter in series with the VCC supply. The meter should be set to the 2A scale range, and have a fast current probe with an RC filter with a time constant of 0.1ms. Current measurements are taken while looping on a data transfer command with a sector count of 128. Current consumption values for both read and write commands are not to exceed the Maximum Average RMS Current specified in Table 11 Table 12 shows the Input Leakage Current, Table 11 the Input Characteristics, Table 13 the Output Drive Type and Table 15 the Output Drive Characteristics. Table 10. Absolute Maximum Conditions Parameter Symbol Conditions Input Power VCC − 0.3V to 6.5V Voltage on any pin except VCC with respect to GND V − 0.5V to V CC + 0.5V Table 11. Input Power Voltage Maximum Average RMS Current Measurement Conditions 3.3V ± 5% 85 − 40 +85 °C 5V ± 10% 100 − 40 +85°C Table 12. Input Leakage Current(1) 1. x refers to the characteristics described in Table 13 For example, I1U indicates a pull up resistor with a type 1 input characteristic. Type Parameter Symbol Conditions Min. Typ. Max. Units IxZ Input Leakage Current IL VIH = VCC − 11 µA VIL = GND IxU Pull Up Resistor RPU1 VCC = 5.0V 50 500 k Ω IxD Pull Down Resistor RPD1 VCC = 5.0V 50 500 k Ω |
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