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4-Port USB 2.0 Hub Controller
Datasheet
Revision 1.63 (03-30-07) Page 4 SMSC USB20H04
DATASHEET
List of Figures
Figure 2.1 - Block Diagram.............................................................................................................................................7
Figure 3.1– 64 Pin TQFP ...............................................................................................................................................8
Figure 8.1 - 2-Wire EEPROM Interface........................................................................................................................20
Figure 8.2 - Internal Default Mode................................................................................................................................21
Figure 8.3 - Timing for Configuration from SMBus.......................................................................................................25
Figure 8.4 - Timing to Complete Configuration from EEPROM....................................................................................26
Figure 10.1 - High Level Block Diagram of a Self-Powered Hub..................................................................................33
Figure 10.2 - USB Downstream Port Connection.........................................................................................................34
Figure 11.1 - 64 Pin TQFP Package Outline, 10 x 10 x 1.4 Body, 2 MM Footprint ......................................................35
List of Tables
Table 4.1 - System Interface Signals .............................................................................................................................9
Table 4.2 – Configuration Select and Serial Port Interface.............................................................................................9
Table 4.3 - USB I/O Signals.........................................................................................................................................10
Table 4.4 - Biasing and Clock Oscillator Signals..........................................................................................................11
Table 4.5 - Power and Ground Signals ........................................................................................................................11
Table 4.6 – USB20H04 Buffer Type Descriptions ........................................................................................................11
Table 5.1 - Absolute Maximum Ratings (In accordance with the Absolute Maximum Rating system (IEC 60134).......12
Table 5.2 - Recommended Operating Conditions ........................................................................................................12
Table 5.3 - Recommended Crystal/External Clock Conditions.....................................................................................12
Table 6.1 - Electrical Characteristics: Supply Pins.......................................................................................................13
Table 6.2 - DC Electrical Characteristics: Digital Pins..................................................................................................13
Table 6.3 - Pin Capacitance.........................................................................................................................................14
Table 6.4 - DC Electrical Characteristics: Analog I/O Pins (DP/DM)............................................................................15
Table 7.1 - Automatic Mode Port Indicators.................................................................................................................19
Table 7.2 - Manual Mode Port Indicators .....................................................................................................................19
Table 8.1 - Summary of OEM Value Programming......................................................................................................21
Table 8.2 - Address 6; Config_Byte_3..........................................................................................................................22
Table 8.3 - Address 7; Config_Byte_2..........................................................................................................................22
Table 8.4 - Address 8; Config_Byte_1..........................................................................................................................23
Table 8.5 - Addresses 9 - 11........................................................................................................................................23
Table 8.6 - Default Configuration Values......................................................................................................................24
Table 8.7 - Time Values to Configure from SMBus......................................................................................................25
Table 8.8 - Time Values to Configure From EEPROM.................................................................................................26
Table 9.1 - Device Descriptor.......................................................................................................................................28
Table 9.2 - Device Qualifier Descriptor ........................................................................................................................28
Table 9.3 - Standard Configuration Descriptor.............................................................................................................29
Table 9.4 - Other_Speed_Configuration Descriptor .....................................................................................................29
Table 9.5 - Standard Interface Descriptor ....................................................................................................................30
Table 9.6 - Standard Endpoint Descriptor ....................................................................................................................30
Table 9.7 - Interface Descriptor (present if multiple-TT)...............................................................................................31
Table 9.8 - On-The-GO (OTG) Descriptor....................................................................................................................31
Table 9.9 - Class-Specific Hub Descriptor (Full-Speed and High-Speed) ....................................................................31
Table 11.1 - 64 Pin TQFP Package Parameters..........................................................................................................35