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20H04 Datasheet, PDF (1/38 Pages) SMSC Corporation – 4-PORT USB2.0 HUB CONTROLLER | |||
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USB20H04
4-Port USB2.0 Hub
Controller
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
Datasheet
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
DATASHEET
Revision 1.63 (10-14-04)
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