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SMSC USB20H04 Page 1 Revision 1.63 (03-30-07)
DATASHEET
USB20H04
4-Port USB 2.0 Hub
Controller
Datasheet
Product Features
General Features
Compliant with USB 2.0 Specification
Hub controller IC with four downstream ports
Four transaction translators ensure maximum USB
throughput
Enables bus-powered Hi-Speed hub design
Compatible with On-The-Go (OTG) USB devices
Integrated Session Request Protocol (SRP)
operates with dual-role OTG hosts
Default configuration with pin selectable options
Serial interface for configuration from EEPROM or
microcontroller when default is not used
Flexible OEM configuration options
Available in a 64-pin TQFP package
Hardware Features
Detects removal of self-power and automatically
changes mode to bus-power
Integrated termination and pull-up/pull-down
resistors
Internal short circuit protection of DP and DM lines
On-chip oscillator uses low cost 24MHz crystal
Supports individual or ganged over-current
protection and power control
LED drivers for each downstream port
OEM Selectable Features
Configure as a bus-powered or self-powered
Hi-Speed USB hub
Configure port power switching and current
sensing on an individual or ganged basis
Enable LED indicator support
Enable multiple transaction translators
Enable compound device support on a port by port
basis
Enable downstream facing ports on a port by port
basis
Pin Selectable Options for Default Configuration
Select 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