2-Port USB 2.0 Hub Controller

Datasheet

Chapter 8 AC Specifications

8.1Oscillator/Clock

Crystal: Parallel Resonant, Fundamental Mode, 24 MHz ±100ppm.

External Clock: 50% Duty cycle ± 10%, 24 MHz ± 100ppm, Jitter < 100ps rms.

8.1.1SMBus 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).

8.1.2I2C EEPROM:

Frequency is fixed at 59KHz ± 20%.

8.1.3USB 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.

Revision 2.3 (08-27-07)

42

SMSC USB2502

 

DATASHEET