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USB2517-JZX Datenblatt(PDF) 60 Page - SMSC Corporation |
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USB2517-JZX Datenblatt(HTML) 60 Page - SMSC Corporation |
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60 / 72 page ![]() USB 2.0 Hi-Speed Hub Controller Datasheet Revision 1.0 (3-11-09) 60 SMSC USB251x DATASHEET Chapter 9 DC Parameters 9.1 Maximum Guaranteed Ratings Note 9.1 Stresses above the specified parameters could cause permanent damage to the device. This is a stress rating only and functional operation of the device at any condition above those indicated in the operation sections of this specification is not implied. Note 9.2 When powering this device from laboratory or system power supplies, it is important that the absolute maximum ratings not be exceeded or device failure can result. Some power supplies exhibit voltage spikes on their outputs when the AC power is switched on or off. In addition, voltage transients on the AC power line may appear on the DC output. When this possibility exists, it is suggested that a clamp circuit be used. 9.2 Operating Conditions PARAMETER SYMBOL MIN MAX UNITS COMMENTS Storage Temperature TSTOR -55 150 °C Lead Temperature Refer to JEDEC Specification J-STD- 020D. 3.3 V supply voltage VDD33 PLLFILT CRFILT 4.6 V Applies to all parts. Voltage on any I/O pin -0.5 5.5 V Voltage on XTALIN -0.5 4.0 V Voltage on XTALOUT -0.5 2.5 V PARAMETER SYMBOL MIN MAX UNITS COMMENTS Commercial Operating Temperature TA 0 70 °C Ambient temperature in still air. Only applies to USB251x, USB251xA, and USB251xB products. Industrial Operating Temperature TAI -40 85 °C Ambient temperature in still air. Only applies to USB251xi, USB251xAi, and USB251xBi products. 3.3 V supply voltage VDD33 3.0 3.6 V Applies to all parts. 3.3 V supply rise time tRT 0 400 μs See Figure 9.1 Voltage on any I/O pin -0.3 5.5 V If any 3.3 V supply voltage drops below 3.0 V, then the MAX becomes: (3.3 V supply voltage) + 0.5 Voltage on XTALIN -0.3 VDD33 V |
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