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USB3503 数据表(PDF) 64 Page - SMSC Corporation |
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USB3503 数据表(HTML) 64 Page - SMSC Corporation |
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64 / 82 page ![]() USB 2.0 HSIC High-Speed Hub Controller Optimized for Portable Applications Datasheet SMSC USB3503A 64 Revision 1.1 (02-07-13) DATASHEET 9.2.2.2 3.3V + 1.8V VBAT should be tied to the 3.3V system supply. VDD33_BYP should be connected to the 3.3V external capacitor. VDD_CORE_REG should be tied to the 1.8v system supply. In this configuration the 3.3V regulator will operate in dropout. The 1.2V regulator will be active. 9.3 Regulator Control Signals The regulators are controlled by RESET_N. When RESET_N is brought high the VDD33 regulator will turn on. When RESET_N is brought low the VDD33 regulator will turn off. |
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