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USB4624 数据表(PDF) 21 Page - SMSC Corporation |
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USB4624 数据表(HTML) 21 Page - SMSC Corporation |
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21 / 68 page ![]() USB 2.0 HSIC Hi-Speed 4-Port Hub Controller Datasheet SMSC USB4624 21 Revision 1.0 (06-17-13) DATASHEET 4.2.2 Dual Supply Configurations 4.2.2.1 VBAT + 1.8V VBAT must be tied to the VBAT system supply. VDDCOREREG must be tied to the 1.8V system supply. In this configuration, the 3.3V regulator and the 1.2V regulator will be active. For HSIC operation, VDD12 must be tied to VDDCR12. 4.2.2.2 3.3V + 1.8V VBAT must be tied to the 3.3V system supply. VDDCOREREG must be tied to the 1.8V system supply. In this configuration the 3.3V regulator will operate in dropout mode and the 1.2V regulator will be active. For HSIC operation, VDD12 must be tied to VDDCR12. |
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