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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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USB4604 датащи(PDF) 22 Page - Microchip Technology |
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USB4604 датащи(HTML) 22 Page - Microchip Technology |
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22 / 62 page  USB 2.0 HSIC Hi-Speed 4-Port Hub Controller Datasheet DS00001716A-page 22 2014 Microchip Technology Inc. 3.3 Buffer Type Descriptions Table 3.3 Buffer Types BUFFER TYPE DESCRIPTION IS Schmitt-triggered input I_RST Reset Input I_SMB I2C/SMBus Clock Input O8 Output with 8 mA sink and 8 mA source OD8 Open-drain output with 8 mA sink O12 Output with 12 mA sink and 12 mA source OD12 Open-drain output with 12 mA sink HSIC High-Speed Inter-Chip (HSIC) USB Specification, Version 1.0 compliant input/output 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. AIO Analog bi-directional ICLK Crystal oscillator input pin OCLK Crystal oscillator output pin P Power pin |
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