User ManualTable of ContentsChapter 1 Overview71.1 Device Features81.2 OEM Selectable Features9Chapter 2 Acronyms10Chapter 3 Pin Configurations11Figure 3.1 USB2640 48-Pin QFN11Figure 3.2 USB2641 48-Pin QFN12Chapter 4 Pin Tables134.1 48-Pin Tables13Table 4.1 USB2640 48-Pin Table13Table 4.2 USB2641 48-Pin Table14Chapter 5 Block Diagrams15Figure 5.1 USB2640 Block Diagram15Figure 5.2 USB2641 Block Diagram16Chapter 6 Pin Descriptions176.1 USB2640/USB2641 Pin Descriptions17Table 6.1 USB2640/USB2641 Pin Descriptions176.2 Buffer Type Descriptions23Table 6.2 USB2640/USB2641 Buffer Type Descriptions236.3 Port Power Control24Figure 6.1 Port Power Control with USB Power Switch24Figure 6.2 Port Power Control with Single Poly Fuse and Multiple Loads25Figure 6.3 Port Power with Ganged Control with Poly Fuse256.4 ROM BOOT Sequence26Figure 6.4 USB2640/USB2641 SPI ROM Connection26Figure 6.5 USB2640/USB2641 I2C Connection26Chapter 7 Configuration Options277.1 Hub277.1.1 Hub Configuration Options277.1.2 VBus Detect277.2 Card Reader277.3 System Configurations277.3.1 EEPROM/SPI Interface277.3.2 EEPROM Data Descriptor28Table 7.1 Internal Flash Media Controller Configurations28Table 7.2 Hub Controller Configurations29Table 7.3 Other Internal Configurations30Table 7.4 FET Configuration337.3.3 LUN ID Strings33Table 7.5 Port Remap Register for Ports 1 & 245Table 7.6 Port Remap Register for Port 3467.3.4 I2C EEPROM477.3.5 In-Circuit EEPROM Programming487.4 Default Configuration Option:487.5 Reset487.5.1 Internal POR Hardware Reset487.5.2 External Hardware RESET_N48Figure 7.1 Reset_N Timing for EEPROM Mode49Table 7.7 Reset_N Timing for EEPROM Mode497.5.3 USB Bus Reset49Chapter 8 Pin Reset States50Figure 8.1 Pin Reset States50Table 8.1 Legend for Pin Reset States Table508.1 Pin Reset States50Table 8.2 USB2640 Pin Reset States50Table 8.3 USB2641 Pin Reset States52Chapter 9 DC Parameters549.1 Maximum Guaranteed Ratings54Figure 9.1 Supply Rise Time Models549.2 Operating Conditions559.3 DC Electrical Characteristics559.4 Capacitance57Table 9.1 Pin Capacitance57Chapter 10 AC Specifications5810.1 Oscillator/Clock58Figure 10.1 Typical Crystal Circuit58Figure 10.2 Formula to find value of C1 and C2158Chapter 11 Package Outline59Figure 11.1 USB2640/USB2641 48-Pin QFN59Chapter 12 GPIO Usage60Table 12.1 USB2640/USB2641 GPIO Usage60Size: 1.15 MBPages: 60Language: EnglishOpen manual
User ManualTable of ContentsChapter 1 Overview71.1 Device Features81.2 OEM Selectable Features9Chapter 2 Acronyms10Chapter 3 Pin Configurations11Figure 3.1 USB2640 48-Pin QFN11Figure 3.2 USB2641 48-Pin QFN12Chapter 4 Pin Tables134.1 48-Pin Tables13Table 4.1 USB2640 48-Pin Table13Table 4.2 USB2641 48-Pin Table14Chapter 5 Block Diagrams15Figure 5.1 USB2640 Block Diagram15Figure 5.2 USB2641 Block Diagram16Chapter 6 Pin Descriptions176.1 USB2640/USB2641 Pin Descriptions17Table 6.1 USB2640/USB2641 Pin Descriptions176.2 Buffer Type Descriptions23Table 6.2 USB2640/USB2641 Buffer Type Descriptions236.3 Port Power Control24Figure 6.1 Port Power Control with USB Power Switch24Figure 6.2 Port Power Control with Single Poly Fuse and Multiple Loads25Figure 6.3 Port Power with Ganged Control with Poly Fuse256.4 ROM BOOT Sequence26Figure 6.4 USB2640/USB2641 SPI ROM Connection26Figure 6.5 USB2640/USB2641 I2C Connection26Chapter 7 Configuration Options277.1 Hub277.1.1 Hub Configuration Options277.1.2 VBus Detect277.2 Card Reader277.3 System Configurations277.3.1 EEPROM/SPI Interface277.3.2 EEPROM Data Descriptor28Table 7.1 Internal Flash Media Controller Configurations28Table 7.2 Hub Controller Configurations29Table 7.3 Other Internal Configurations30Table 7.4 FET Configuration337.3.3 LUN ID Strings33Table 7.5 Port Remap Register for Ports 1 & 245Table 7.6 Port Remap Register for Port 3467.3.4 I2C EEPROM477.3.5 In-Circuit EEPROM Programming487.4 Default Configuration Option:487.5 Reset487.5.1 Internal POR Hardware Reset487.5.2 External Hardware RESET_N48Figure 7.1 Reset_N Timing for EEPROM Mode49Table 7.7 Reset_N Timing for EEPROM Mode497.5.3 USB Bus Reset49Chapter 8 Pin Reset States50Figure 8.1 Pin Reset States50Table 8.1 Legend for Pin Reset States Table508.1 Pin Reset States50Table 8.2 USB2640 Pin Reset States50Table 8.3 USB2641 Pin Reset States52Chapter 9 DC Parameters549.1 Maximum Guaranteed Ratings54Figure 9.1 Supply Rise Time Models549.2 Operating Conditions559.3 DC Electrical Characteristics559.4 Capacitance57Table 9.1 Pin Capacitance57Chapter 10 AC Specifications5810.1 Oscillator/Clock58Figure 10.1 Typical Crystal Circuit58Figure 10.2 Formula to find value of C1 and C2158Chapter 11 Package Outline59Figure 11.1 USB2640/USB2641 48-Pin QFN59Chapter 12 GPIO Usage60Table 12.1 USB2640/USB2641 GPIO Usage60Size: 1.15 MBPages: 60Language: EnglishOpen manual