USB2503 datasheet(38/43 Pages) SMSC

38 / 43 page

Integrated USB 2.0 Compatible 3-Port Hub

Datasheet

Revision 2.3 (08-27-07)

SMSC USB2503/USB2503A

DATASHEET

Chapter 7 DC Parameters

7.1

Maximum Guaranteed Ratings

Note:

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. 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.

PARAMETER

SYMBOL

MIN

MAX

UNITS

COMMENTS

Storage

Temperature

-55

150

°C

Lead

Temperature

325

°C

Soldering < 10 seconds

1.8V supply

voltage

VDDA18PLL

VDD18

-0.5

2.5

3.3V supply

voltage

VDDA33

VDDA33PLL

VDD33CR

-0.5

4.0

Voltage on any

I/O pin

-0.5

(3.3V supply voltage + 2)

≤ 6V

Voltage on

XTAL1

-0.5

4.0

Voltage on

XTAL2

-0.5

VDD18 + 0.3V

USB2503 数据表(PDF) 38 Page - SMSC Corporation

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