USB2503 datasheet(42/43 Pages) SMSC

部件名	USB2503

功能描述	Integrated USB 2.0 Compatible 3-Port Hub

PDF	43 Pages

Scroll/Zoom	100%

制造商	SMSC [SMSC Corporation]

网页	http://www.smsc.com

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42 / 43 page

Integrated USB 2.0 Compatible 3-Port Hub

Datasheet

Revision 2.3 (08-27-07)

SMSC USB2503/USB2503A

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.

USB2503 数据表(PDF) 42 Page - SMSC Corporation