USB Hub with Integrated 10/100 Ethernet Controller

Datasheet

Chapter 4 Operational Characteristics

4.1Absolute Maximum Ratings*

Supply Voltage (VDD33IO, VDD33A) (Note 4.1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .0V to +3.6V Positive voltage on signal pins, with respect to ground (Note 4.2). . . . . . . . . . . . . . . . . . . . . . . . . . +6V Negative voltage on signal pins, with respect to ground (Note 4.3) . . . . . . . . . . . . . . . . . . . . . . . . -0.5V Positive voltage on XI, with respect to ground . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .+4.6V Positive voltage on XO, with respect to ground . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .+2.5V Ambient Operating Temperature in Still Air (TA) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0oC to +70oC Storage Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .-55oC to +150oC Lead Temperature Range. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Refer to JEDEC Spec. J-STD-020 HBM ESD Performance per JESD 22-A114-E . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .+/- 8kV Contact Discharge ESD Performance per IEC61000-4-2 (Note 4.4) . . . . . . . . . . . . . . . . . . . . . .+/- 8kV Air-Gap Discharge ESD Performance per IEC61000-4-2 (Note 4.4) . . . . . . . . . . . . . . . . . . . . .+/- 15kV Latch-up Performance per EIA/JESD 78 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .+/- 200mA

Note 4.1 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 AC power is switched on or off. In addition, voltage transients on the AC power line may appear on the DC output. If this possibility exists, it is suggested that a clamp circuit be used.

Note 4.2 This rating does not apply to the following pins: XI, XO, EXRES, USBRBIAS.

Note 4.3 This rating does not apply to the following pins: EXRES, USBRBIAS.

Note 4.4 Performed by independant 3rd party test facility.

*Stresses exceeding those listed in this section could cause permanent damage to the device. This is a stress rating only. Exposure to absolute maximum rating conditions for extended periods may affect device reliability. Functional operation of the device at any condition exceeding those indicated in Section 4.2, "Operating Conditions**", Section 4.4, "DC Specifications", or any other applicable section of this specification is not implied. Note, device signals are NOT 5 volt tolerant unless specified otherwise.

4.2Operating Conditions**

Supply Voltage (VDD33A, VDD33BIAS, VDD33IO) . . . . . . . . . . . . . . . . . . . . . . . . . . .+3.3V +/- 300mV Ambient Operating Temperature in Still Air (TA) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0oC to +70oC

**Proper operation of LAN9512 is guaranteed only within the ranges specified in this section.

Revision 1.0 (04-20-09)

38

SMSC LAN9512

 

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