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USB7252/KDX 数据表(PDF) 4 Page - Microchip Technology |
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USB7252/KDX 数据表(HTML) 4 Page - Microchip Technology |
4 / 65 page ![]() USB7252 DS00002736D-page 4 2018 - 2020 Microchip Technology Inc. 1.2 Buffer Types TABLE 1-2: BUFFER TYPES Buffer Type Description I Input. IS Input with Schmitt trigger. O12 Output buffer with 12 mA sink and 12 mA source. OD12 Open-drain output with 12 mA sink PU 50 μA (typical) internal pull-up. Unless otherwise noted in the pin description, internal pull- ups are always enabled. 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. 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. ICLK Crystal oscillator input pin OCLK Crystal oscillator output pin I/O-U Analog input/output defined in USB specification. I-R RBIAS. A Analog. AIO Analog bidirectional. P Power pin. |
类似零件编号 - USB7252/KDX |
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类似说明 - USB7252/KDX |
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