USB2502-HT datasheet(42/44 Pages) SMSC

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USB2502-HT датащи(PDF) 42 Page - SMSC Corporation

42 / 44 page

2-Port USB 2.0 Hub Controller

Datasheet

Revision 2.1 (12-06-06)

SMSC USB2502

DATASHEET

Chapter 8 AC Specifications

8.1

Oscillator/Clock

Crystal: Parallel Resonant, Fundamental Mode, 24 MHz

±100ppm.

External Clock: 50% Duty cycle

± 10%, 24 MHz ± 100ppm, Jitter < 100ps rms.

8.1.1

SMBus Interface:

The SMSC Hub conforms to all voltage, power, and timing characteristics and specifications as set

forth in the SMBus 1.0 Specification for Slave-Only devices (except as noted in Section 5.3).

8.1.2

I2C EEPROM:

Frequency is fixed at 59KHz

± 20%.

8.1.3

USB 2.0

The Hub conforms to all voltage, power, and timing characteristics and specifications as set forth in

the USB 2.0 Specification. Please refer to the USB Specification for more information.

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