USB20H04
4-Port USB2.0 Hub
Controller
Datasheet
Product Features
General Features
Compliant with USB2.0 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 package (green, lead-free)
SMSC USB20H04
Page 1
Revision 1.63 (10-14-04)
DATASHEET
SMSC [ SMSC CORPORATION ]
