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USB2503A-HZH Datasheet(PDF) 9 Page - SMSC Corporation |
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USB2503A-HZH Datasheet(HTML) 9 Page - SMSC Corporation |
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9 / 43 page  Integrated USB 2.0 Compatible 3-Port Hub Datasheet SMSC USB2503/USB2503A 9 Revision 2.1 (12-06-06) DATASHEET Chapter 4 3-Port Hub Block Diagram Figure 4.1 3-Port Block Diagram Table 4.1 3-Port Hub Pin Descriptions NAME SYMBOL TYPE FUNCTION UPSTREAM USB 2.0 INTERFACE USB Bus Data USBDN0 USBDP0 IO-U These pins connect to the USB bus data signals. Detect Upstream VBUS Power VBUS_DET I/O12 Detects state of Upstream VBUS power (indicates the power-managed state of the upstream device). Upstream V BUS Upstream PHY Upstream USB Data Repeater Controller SIE Serial Interface PLL 24 MHz Crystal To EEPROM or SMBus Master Routing Logic SCL SD TT #1 TT #2 TT #3 Port Controller Downstream PHY #1 Port #1 OC Sense Switch Driver LED Drivers Downstream PHY #3 Port #3 OC Sense Switch Driver LED Drivers ... Downstream USB Data OC Sense Switch/LED Drivers Downstream USB Data OC Sense Switch/LED Drivers V BUS Power Detect Pin Strapping Options Internal Defaults Select 3.3V 1.8V Reg. 1.8V Cap |
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