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USB2507 Datasheet(PDF) 42 Page - SMSC Corporation |
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USB2507 Datasheet(HTML) 42 Page - SMSC Corporation |
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42 / 44 page ![]() Integrated USB 2.0 Compatible 7-Port Hub Datasheet Revision 2.3 (08-27-07) 42 SMSC USB2507 DATASHEET Notes: 1. Output leakage is measured with the current pins in high impedance. 2. See USB 2.0 Specification for USB DC electrical characteristics. 3. RBIAS is a 3.3V tolerant analog pin. CAPACITANCE TA = 25°C; fc = 1MHz; VDD33 = 3.3V Power Sequencing There are no power supply sequence restrictions for the Hub. The order in which power supplies power-up and power-down is implementation dependent. Supply Current Configured (Full-Speed Host) 1 Port 2 Ports 3 Ports 4 Ports 7 Ports IFCC1 IFCC2 IFCC3 IFCC4 IFCC7 175 175 175 175 175 mA mA mA mA mA Total from all supplies Supply Current Suspend ICSBY 225 uA Total from all supplies. LIMITS PARAMETER SYMBOL MIN TYP MAX UNIT TEST CONDITION Clock Input Capacitance CIN 12 pF All pins except USB pins (and pins under test tied to AC ground) Input Capacitance CIN 8pF Output Capacitance COUT 12 pF Table 7.1 DC Electrical Characteristics (continued) PARAMETER SYMBOL MIN TYP MAX UNITS COMMENTS |
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