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USB4624 数据表(PDF) 22 Page - Microchip Technology |
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USB4624 数据表(HTML) 22 Page - Microchip Technology |
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22 / 58 page  USB 2.0 HSIC Hi-Speed 4-Port Hub Controller Datasheet DS00001717A-page 22 2014 Microchip Technology Inc. 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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