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ST7FLCD1 数据表(PDF) 87 Page - STMicroelectronics |
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ST7FLCD1 数据表(HTML) 87 Page - STMicroelectronics |
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87 / 95 page ![]() 87/95 ST7FLCD1 Electrical Characteristics 17 Electrical Characteristics The ST7FLCD1 device contains circuitry to protect the inputs against damage due to high static voltage or electric field. Nevertheless it is advised to take normal precautions and to avoid applying to this high impedance voltage circuit any voltage higher than the maximum rated voltages. It is recommended for proper operation that VIN and VOUT be constrained to the range: VSS £ (VIN or VOUT) £ VDD To enhance reliability of operation, it is recommended to connect unused inputs to an appropriate logic voltage level such as VSS or VDD. All the voltages in the following table, are referenced to VSS. 17.1 Absolute Maximum Ratings 17.2 Power Considerations The average chip-junction temperature, TJ, in degrees Celsius, may be calculated using the following equation: TJ = TA + (PD x qJA) (1) Where: ● TA is the Ambient Temperature in °C, ● qJA is the Package Junction-to-Ambient Thermal Resistance, in °C/W, ● PD is the sum of PINT and PI/O, ● PINT is the product of IDD and VDD, expressed in Watts. This is the Chip Internal Power ● PI/O represents the Power Dissipation on Input and Output Pins; User Determined. Table 32: Absolute Maximum Ratings Symbol Ratings Value Unit VDD Recommended Supply Voltage -0.3 to +6.0 V VIN Input Voltage VSS -0.3 to VDD + 0.3 V VAIN Analog Input Voltage (A/D Converter) VSS -0.3 to VDD + 0.3 V VOUT Output Voltage VSS -0.3 to VDD + 0.3 V IIN Input Current -10 to +10 mA IOUT Output Current -10 to +10 mA IINJ Accumulated injected current of all I/O pins (VDD, VSS)40 mA TA Operating Temperature Range 0 to +70 °C TSTG Storage Temperature Range -65 to +150 °C TJ Junction Temperature 150 °C PD Power Dissipation TBD mW ESD ESD susceptibility 2000 V |
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