USB2512 datasheet(45/57 Pages) MICROCHIP

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USB2512 데이터시트(PDF) 45 Page - Microchip Technology

부품명	USB2512

상세설명	USB 2.0 Hi-Speed Hub Controller

PDF	57 Pages

Scroll/Zoom	100%

제조업체	MICROCHIP [Microchip Technology]

홈페이지	http://www.microchip.com

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45 / 57 page

 2010 - 2015 Microchip Technology Inc.

DS00001692C-page 45

USB251xB/xBi

7.2

External Clock

50% duty cycle

 10%, 24 MHz  350 ppm, jitter < 100 ps rms.

The external clock is recommended to conform to the signaling level designated in the JESD76-2 Specification [5] on

1.2 V CMOS Logic. XTALOUT should be treated as a weak (<1mA) buffer output.

7.2.1

SMBUS INTERFACE

The hub conforms to all voltage, power, and timing characteristics and specifications as set forth in the SMBus 1.0 Spec-

ification

[3] for slave-only devices (except as noted in Section 5.3, "SMBus," on page 33.

7.2.2

I2C EEPROM

Clock frequency is fixed at 60 kHz

 20

7.2.3

USB 2.0

The Microchip hub conforms to all voltage, power, and timing characteristics and specifications as set forth in the USB

2.0 Specification

[1].

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