USB2524 datasheet(54/57 Pages) SMSC

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USB MultiSwitchTM Hub

Datasheet

Revision 1.91 (08-22-07)

SMSC USB2524

DATASHEET

Input Buffer with Pull-

Down (IPD )

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

ICLK Input Buffer

Low Input Level

High Input Level

Input Leakage

VILCK

VIHCK

IIL

1.4

-10

0.5

+10

TTL Levels

VIN = 0 to VDD33

I/OSD12 Type Buffer

Low Output Level

Output Leakage

Hysteresis

VOL

IOL

VHYSI

-10

250

300

0.4

+10

350

µA

IOL = 12 mA @ VDD33 = 3.3V

VIN = 0 to VDD33

(Note 11.1)

IO-U

(Note 11.2)

I-R

(Note 11.3)

Supply Current

Unconfigured

1High-Speed Hosts

1Full-Speed Hosts

ICCINIT

119

117

Note:

1 Upstream port is in

suspend, and the

other Upstream Port is

in the process of being

enumerated by an

external Host

controller (all

downstream ports

assigned to the

Upstream port under

enumeration).

Supply Current

Unconfigured

2 High-Speed Hosts

2 Full-Speed Hosts

ICCINIT

199

174

Note:

Both Upstream Ports

are in the process of

being enumerated by

external Host

controllers.

Supply Current

Configured

(2 upstream High-Speed

Hosts)

2 Ports @ FS/LS

2 Ports @ HS

1 Port HS, 1 Port FS/LS

3 Ports HS

4 Ports HS

IHCC2

IHCH2

IHCH1C1

IHCH3

IHCH4

198

260

240

310

340

Total from all supplies

Table 11.1 DC Electrical Characteristics (continued)

PARAMETER

SYMBOL

MIN

TYP

MAX

UNITS

COMMENTS

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