USB2524 datasheet(53/57 Pages) SMSC

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USB MultiSwitchTM Hub

Datasheet

SMSC USB2524

Revision 1.91 (08-22-07)

DATASHEET

Chapter 11 DC Parameters

11.1

Maximum Guaranteed Ratings

Operating Temperature Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0oC to +70oC

Storage Temperature Range. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -55o to +150oC

Lead Temperature Range (soldering, 10 seconds) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +325oC

Positive Voltage on any I/O pin, with respect to Ground. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5.5V

Negative Voltage on any I/O pin, with respect to Ground . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.V

Positive Voltage on XTAL1, with respect to Ground . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.0V

Positive Voltage on XTAL2, with respect to Ground . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3.6V

Negative Voltage on XTAL1 and XTAL2, with respect to Ground . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.V

Maximum VDDA33 &VDD33. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +4.0V

*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 other condition above those indicated

in the operation sections of this specification is not implied.

Note: 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.

11.1.1

DC Electrical Characteristics

(TA = 0°C - 70°C, VDD33, VDDA33, = +3.3 V tolerance -5% to ±10%)

Table 11.1 DC Electrical Characteristics

PARAMETER

SYMBOL

MIN

TYP

MAX

UNITS

COMMENTS

I, IS Type Input Buffer

Low Input Level

High Input Level

Input Leakage

Hysteresis (‘IS’ Only)

VILI

VIHI

IIL

VHYSI

2.0

-10

250

300

0.8

+10

350

TTL Levels

VIN = 0 to VDD33

Input Buffer with Pull-Up

(IPU)

Low Input Level

High Input Level

Low Input Leakage

High Input Leakage

VILI

VIHI

IILL

IIHL

2.0

0.8

TTL Levels

VIN = 0

VIN = VDD33

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