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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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LAN9220 датащи(PDF) 21 Page - SMSC Corporation |
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LAN9220 датащи(HTML) 21 Page - SMSC Corporation |
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21 / 150 page  16-bit Non-PCI Small Form Factor 10/100 Ethernet Controller with Variable Voltage I/O & HP Auto-MDIX Support Datasheet SMSC LAN9220 21 Revision 2.6 (12-04-08) DATASHEET 2.3 Buffer Types Note 2.1 Sink and source capabilities are dependant on the VDDVARIO voltage. Refer to Section 7.6, "DC Electrical Specifications" for additional information. Note 2.2 When operating at reduced VDDVARIO voltage levels (less than 3.0V), do not rely on internal pull-up and pull-down resistors to determine signal state. Refer to Section 2.2, "External Pull-Up/Pull-Down Resistors" and the individual signal descriptions in Section 2.1, "Pin List" for more information. Table 2.7 Buffer Types TYPE DESCRIPTION VIS Variable voltage input pin VO12 Variable voltage output with 12mA sink and 12mA source (Note 2.1) VOD12 Variable voltage open-drain output with 12mA sink (Note 2.1) VO8 Variable voltage output 8mA symmetrical drive (Note 2.1) VOD8 Variable voltage open-drain output with 8 mA sink (Note 2.1) PU 50uA (typical) internal pull-up (Note 2.2) PD 50uA (typical) internal pull-down (Note 2.2) AI Analog input AO Analog output AIO Analog bi-directional ICLK Crystal oscillator input pin OCLK Crystal oscillator output pin |
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