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Zakładka z wyszukiwarką danych komponentów |
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Zakładka z wyszukiwarką danych komponentów |
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USB2502-HT Arkusz danych(PDF) 41 Page - SMSC Corporation |
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USB2502-HT Arkusz danych(HTML) 41 Page - SMSC Corporation |
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41 / 44 page  2-Port USB 2.0 Hub Controller Datasheet SMSC USB2502 41 Revision 2.1 (12-06-06) 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; VDD33CR = 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 Suspend ICSBY 320 425 uA Total from all supplies. Supply Current Reset IRST 160 300 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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