USB20H044-Port USB 2.0 HubController
Datasheet
Product Features

General Features

ƒCompliant with USB 2.0 Specification

ƒHub controller IC with four downstream ports

ƒFour transaction translators ensure maximum USB throughput

ƒEnables bus-powered Hi-Speed hub design

ƒCompatible with On-The-Go (OTG) USB devices

ƒIntegrated Session Request Protocol (SRP) operates with dual-role OTG hosts

ƒDefault configuration with pin selectable options

ƒSerial interface for configuration from EEPROM or microcontroller when default is not used

ƒFlexible OEM configuration options

ƒAvailable in a 64-pin TQFP package

Hardware Features

ƒDetects removal of self-power and automatically changes mode to bus-power

ƒIntegrated termination and pull-up/pull-down resistors

ƒInternal short circuit protection of DP and DM lines

ƒOn-chip oscillator uses low cost 24MHz crystal

ƒSupports individual or ganged over-current protection and power control

ƒLED drivers for each downstream port

OEM Selectable Features

ƒConfigure as a bus-powered or self-powered Hi-Speed USB hub

ƒConfigure port power switching and current sensing on an individual or ganged basis

ƒEnable LED indicator support

ƒEnable multiple transaction translators

ƒEnable compound device support on a port by port basis

ƒEnable downstream facing ports on a port by port basis

Pin Selectable Options for Default Configuration

ƒSelect operation as either a Bus-Powered hub or a Self-Powered hub

ORDERING INFORMATION

Order Number(s):

USB20H04-JD for 64 pin, 10x10x1.4 TQFP package

USB20H04-JT for 64 pin, 10x10x1.4 TQFP Lead-Free RoHS Compliant Package

SMSC USB20H04

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Revision 1.63 (03-30-07)

DATASHEET