USB2502-HT datasheet(41/44 Pages) SMSC

41 / 44 page

2-Port USB 2.0 Hub Controller

Datasheet

SMSC USB2502

Revision 2.1 (12-06-06)

DATASHEET

Notes:

1. Output leakage is measured with the current pins in high impedance.

2. See USB 2.0 Specification for USB DC electrical characteristics.

3. RBIAS is a 3.3V tolerant analog pin.

CAPACITANCE TA = 25°C; fc = 1MHz; VDD33CR = 3.3V

Power Sequencing

There are no power supply sequence restrictions for the Hub. The order in which power supplies

power-up and power-down is implementation dependent.

Supply Current

Suspend

ICSBY

320

425

Total from all supplies.

Supply Current

Reset

IRST

160

300

Total from all supplies.

LIMITS

PARAMETER

SYMBOL

MIN

TYP

MAX

UNIT

TEST CONDITION

Clock Input

Capacitance

CIN

All pins except USB pins (and pins under

test tied to AC ground)

Input Capacitance

CIN

8pF

Output Capacitance

COUT

Table 7.1 DC Electrical Characteristics (continued)

PARAMETER

SYMBOL

MIN

TYP

MAX

UNITS

COMMENTS

USB2502-HT 数据表(PDF) 41 Page - SMSC Corporation

USB2502-HT 数据表(HTML) 41 Page - SMSC Corporation

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