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参数资料
| 型号： | 20H04 |
| 厂商： | SMSC Corporation |
| 英文描述： | 4-PORT USB2.0 HUB CONTROLLER |
| 中文描述： | 4端口USB2.0集线器控制器 |
| 文件页数： | 7/38页 |
| 文件大小： | 919K |
| 代理商： | 20H04 |
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4-Port USB2.0 Controller
Datasheet
SMSC USB20H04
Page 7
Revision 1.63 (10-14-04)
DATASHEET
List of Figures
Figure 2.1 - Block Diagram...........................................................................................................................................10
Figure 3.1– 64 Pin TQFP .............................................................................................................................................11
Figure 8.1 - 2-Wire EEPROM Interface........................................................................................................................23
Figure 8.2 - Internal Default Mode................................................................................................................................24
Figure 8.3 - Timing for Configuration from SMBus.......................................................................................................28
Figure 8.4 - Timing to Complete Configuration from EEPROM....................................................................................29
Figure 10.1 - High Level Block Diagram of a Self-Powered Hub..................................................................................36
Figure 10.2 - USB Downstream Port Connection.........................................................................................................37
Figure 11.1 - 64 Pin TQFP Package Outline, 10 x 10 x 1.4 Body, 2 MM Footprint ......................................................38
List of Tables
Table 4.1 - System Interface Signals ...........................................................................................................................12
Table 4.2 – Configuration Select and Serial Port Interface...........................................................................................12
Table 4.3 - USB I/O Signals.........................................................................................................................................13
Table 4.4 - Biasing and Clock Oscillator Signals..........................................................................................................14
Table 4.5 - Power and Ground Signals ........................................................................................................................14
Table 4.6 – USB20H04 Buffer Type Descriptions ........................................................................................................14
Table 5.1 - Absolute Maximum Ratings (In accordance with the Absolute Maximum Rating system (IEC 60134).......15
Table 5.2 - Recommended Operating Conditions ........................................................................................................15
Table 5.3 - Recommended Crystal/External Clock Conditions.....................................................................................15
Table 6.1 - Electrical Characteristics: Supply Pins.......................................................................................................16
Table 6.2 - DC Electrical Characteristics: Digital Pins..................................................................................................16
Table 6.3 - Pin Capacitance.........................................................................................................................................17
Table 6.4 - DC Electrical Characteristics: Analog I/O Pins (DP/DM)............................................................................18
Table 7.1 - Automatic Mode Port Indicators.................................................................................................................22
Table 7.2 - Manual Mode Port Indicators .....................................................................................................................22
Table 8.1 - Summary of OEM Value Programming......................................................................................................24
Table 8.2 - Address 6; Config_Byte_3..........................................................................................................................25
Table 8.3 - Address 7; Config_Byte_2..........................................................................................................................25
Table 8.4 - Address 8; Config_Byte_1..........................................................................................................................26
Table 8.5 - Addresses 9 - 11........................................................................................................................................26
Table 8.6 - Default Configuration Values......................................................................................................................27
Table 8.7 - Time Values to Configure from SMBus......................................................................................................28
Table 8.8 - Time Values to Configure From EEPROM.................................................................................................29
Table 9.1 - Device Descriptor.......................................................................................................................................31
Table 9.2 - Device Qualifier Descriptor ........................................................................................................................31
Table 9.3 - Standard Configuration Descriptor.............................................................................................................32
Table 9.4 - Other_Speed_Configuration Descriptor .....................................................................................................32
Table 9.5 - Standard Interface Descriptor ....................................................................................................................33
Table 9.6 - Standard Endpoint Descriptor....................................................................................................................33
Table 9.7 - Interface Descriptor (present if multiple-TT)...............................................................................................34
Table 9.8 - On-The-GO (OTG) Descriptor....................................................................................................................34
Table 9.9 - Class-Specific Hub Descriptor (Full-Speed and High-Speed) ....................................................................34
Table 11.1 - 64 Pin TQFP Package Parameters..........................................................................................................38
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