USB3813 datasheet(62/68 Pages) SMSC

部件名	USB3813

功能描述	USB 2.0 Hi-Speed 3-Port Hub Controller Optimized for Portable Applications

PDF	68 Pages

Scroll/Zoom	100%

制造商	SMSC [SMSC Corporation]

网页	http://www.smsc.com

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62 / 68 page

USB 2.0 Hi-Speed 3-Port Hub Controller Optimized for Portable Applications

Datasheet

Revision 1.0 (06-17-13)

SMSC USB3813

DATASHEET

9.5

AC Specifications

This section details the various AC timing specifications of the device.

9.5.1

Power-On Configuration Strap Valid Timing

Figure 9.2 illustrates the configuration strap timing requirements, in relation to power-on, for

applications where RESET_N is not used at power-on. The operational levels (Vopp) for the external

power supplies are detailed in Section 9.2, "Operating Conditions**," on page 58.

Note: For RESET_N configuration strap timing requirements, refer to Section 9.5.2, "Reset and

Configuration Strap Timing," on page 63.

Figure 9.2 Power-On Configuration Strap Valid Timing

Table 9.5 Power-On Configuration Strap Valid Timing

SYMBOL

DESCRIPTION

MIN

TYP

MAX

UNITS

tcsh

Configuration strap hold after external power supplies at

operational levels

1ms

All External

Power Supplies

Vopp

Configuration

Straps

tcsh

USB3813 数据表(PDF) 62 Page - SMSC Corporation