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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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LAN8741Ai-EN датащи(PDF) 14 Page - Microchip Technology |
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LAN8741Ai-EN датащи(HTML) 14 Page - Microchip Technology |
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14 / 106 page  LAN8741A/LAN8741Ai DS00001988A-page 14 2013-2015 Microchip Technology Inc. 2.2 Buffer Types TABLE 2-9: BUFFER TYPES Buffer Type Description IS Schmitt-triggered input O12 Output with 12 mA sink and 12 mA source VIS Variable voltage Schmitt-triggered input VO8 Variable voltage output with 8 mA sink and 8 mA source VOD8 Variable voltage open-drain output with 8 mA sink PU 50 µA (typical) internal pull-up. Unless otherwise noted in the pin description, internal pull-ups are always enabled. Note: Internal pull-up resistors prevent unconnected inputs from floating. Do not rely on internal resistors to drive signals external to the device. When connected to a load that must be pulled high, an external resistor must be added. PD 50 µA (typical) internal pull-down. Unless otherwise noted in the pin description, internal pull- downs are always enabled. Note: Internal pull-down resistors prevent unconnected inputs from floating. Do not rely on internal resistors to drive signals external to the device. When connected to a load that must be pulled low, an external resistor must be added. AI Analog input AIO Analog bi-directional ICLK Crystal oscillator input pin OCLK Crystal oscillator output pin P Power pin Note: The digital signals are not 5 V tolerant. Refer to Section 5.1, "Absolute Maximum Ratings*" for additional buffer information. Note: Sink and source capabilities are dependent on the VDDIO voltage. Refer to Section 5.1, "Absolute Maxi- mum Ratings*" for additional information. |
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