USB MultiSwitchTM Hub

Datasheet

Chapter 11 DC Parameters

11.1Maximum Guaranteed Ratings

Operating Temperature Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0oC to +70oC Storage Temperature Range. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -55oto +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.

11.1.1DC 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

VILI

 

 

0.8

V

TTL Levels

High Input Level

VIHI

2.0

 

 

V

 

Input Leakage

IIL

-10

 

+10

uA

VIN = 0 to VDD33

Hysteresis (‘IS’ Only)

VHYSI

250

300

350

mV

 

Input Buffer with Pull-Up

 

 

 

 

 

 

(IPU)

 

 

 

 

 

 

Low Input Level

VILI

 

 

0.8

V

TTL Levels

High Input Level

VIHI

2.0

 

 

V

 

Low Input Leakage

IILL

 

 

10

uA

VIN = 0

High Input Leakage

IIHL

 

 

30

uA

VIN = VDD33

SMSC USB2524

53

Revision 1.91 (08-22-07)

 

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