AU9254A21

AU9254 A21 USB Hub Controller Technical Reference Manual Revision 1.1 © 1997-2003 Alcor Micro Corp. All Rights Reserved Copyright Notice Copyright 1997 - 2003 Alcor Micro Corp. All Rights Reserved. Trademark Acknowledgements The company and product names mentioned in this document may be the trademarks or registered trademarks of their manufacturers. Disclaimer Alcor Micro Corp. reserves the right to change this product without notice. Alcor Micro Corp. makes no warranty for the use of its products and bears no responsibility for any errors that appear in this document. Specifications are subject to change without notice. Contact Information: Web site: http://www.alcormicro.com/ Taiwan Alcor Micro Corp. 4F-1, No 200, Kang Chien Rd., Nei Hu, Taipei, Taiwan, R.O.C. Phone: 886-2-8751-1984 Fax: 886-2-2659-7723 San Clara Office 2901 Tasman Drive, Suite 206 Santa Clara, CA 95054 Phone: (408) 845-9300 Fax: (408) 845-9086 Los Angeles Office 9400 Seventh St., Bldg. A2 Rancho Cucamonga, CA 91730 Phone: (909) 989-3060 Fax: (909) 944-0464 Table of Contents 1.0 Introduction ...................................................................................................... 1 1.1. Description............................................................................................................. 1 1.2. Features ................................................................................................................. 1 2.0 Application Block Diagram ............................................................................. 3 3.0 Pin Assignment................................................................................................ 5 4.0 System Architecture and Reference Design................................................. 10 4.1. AU9254 Block Diagram......................................................................................... 10 4.2. Sample Schematics11 ............................................................................................. 11 5.0 Electrical Characteristics ................................................................................ 15 5.1. Absolute Maximum Ratings................................................................................... 15 5.2. Recommended Operating Conditions .................................................................... 15 5.3. General DC Characteristics.................................................................................... 15 5.4. DC Electrical Characteristics for 5 volts operation................................................ 16 5.5. DC Electrical Characteristics for 3.3 volts operation............................................. 16 5.6. Crystal Oscillator Circuit Setup for Characterization............................................. 17 5.7. USB Transceiver Characteristics ........................................................................... 17 5.8. ESD Test Results ................................................................................................... 22 5.9. Latch-Up Test Results............................................................................................ 23 6.0 Mechanical Information................................................................................... 25 6.1 Normal Size Package (Body Size 209 mil)………………………………………..25 6.2 Small Size Package (Body Size 150 mil)…………………………………………27 TABLE OF CONTENTS i This Page Intentionally Left Blank TABLE OF CONTENTS i 1.0 Introduction 1.1. Description The AU9254A21 is an integrated single chip USB hub controller designed for the emerging industry-standard Universal Serial Bus (USB). The AU9254A21 supports four USB downstream ports. Each downstream port has power switch control, and over-current sensing. Single chip integration makes the AU9254A21 the most cost effective stand-alone USB hub solution available in the market. Downstream ports can be used to connect various USB peripheral devices, such as USB printers, modems, scanners, cameras, mice, or joysticks to the system without adding external glue logic. 1.2. Features • • • • • • • Fully compliant with the Universal Serial Bus Specification, version 1.1. USB hub design is compliant with Universal Serial Bus Hub Specification, revision 1.1. Single chip integrated USB hub controller with embedded proprietary processor. Supports four bus-powered/self-powered downstream ports. Built-in 3.3v voltage regulator allows single +5V operating voltage, resulting in reduced overall system cost. Runs at 12Mhz frequency. 28-pin SSOP package, both normal size (body size 209 mil) and smaller size (body size 150 mil) are available. INTRODUCTION 1 This Page Intentionally Left Blank INTRODUCTION 2 2.0 Application Block Diagram The AU9254A21 is a single chip 4-port USB hub controller. The upstream port is connected to the USB system. The downstream ports can be used for a mouse, joystick, scanner, printer or other device. USB HOST SYSTEM SCANNER PRINTER ALCOR MICRO AU9254 USB DOWNSTREAM PORTS USB DOWNSTREAM PORTS MOUSE Keyboard APPLICATION BLOCK DIAGRAM 3 This Page Intentionally Left Blank APPLICATION BLOCK DIAGRAM 4 3.0 Pin Assignment The AU9254A21 is packaged as a 28-pin shrink small outline plastic package (SSOP). The figure on the following page shows the signal names for each of the pins on the chip. Accompanying the figure is the table that describes each of the pin signals. USB2_DM USB2_DP USB3_DM USB3_DP USB4_DM USB4_DP DP4_PWRUP DP2_PWRUP BUS_PWRED VCC5O/VCC5IK GND5O/GND5IK VCC3V DP1_PWRUP GANGPOWER 1 2 3 4 5 6 7 8 9 10 11 12 13 14 28 27 26 25 24 USB1_DP USB1_DM USB_DP USB_DM DP3_OVRCUR DP4_OVRCUR DP3_PWRUP XTAL2 XTAL1 AGND/GNDO NC DP2_OVRCUR SUSPEND DP1_OVRCUR ALCOR MICRO AU9254 A21 USB HUB CONTROLLER 28 - PIN SSOP 23 22 21 20 19 18 17 16 15 APPLICATION BLOCK DIAGRAM 5 Table 3-1. Pin Descriptions of Au9254A21, 28-pin SSOP Pin No 1 Pin Name Input/Output Description USB_DM Input/Output USB D- for downstream port 2; add 15KΩ pull-down to ground. USB D+ for downstream port 2; add 15KΩ pulldown to ground. USB D- for downstream port 3; add 15KΩ pull-down to ground. USB D+ for downstream port 3; add 15KΩ pulldown to ground. USB D- for downstream port 4; add 15KΩ pull-down to ground. USB D+ for downstream port 4; add 15KΩ pulldown to ground. Downstream port 4 power switch control. Active low. Downstream port 2 power switch control. Active low. Bus power. Low indicates bus-powered. +5 V power supply. Ground. 3.3V output for upstream D+ pull-up. Downstream port 1 power switch control. Active low. Ganged or individual port power selection. Add a 10k pull down for ganged power. 10k pull up for individual power. Downstream port 1 over-current indicator. Active low. 2 USB2_DP Input/Output 3 USB3_DM Input/Output 4 USB3_DP Input/Output 5 USB4_DM Input/Output 6 USB4_DP Input/Output 7 DP4_PWRUP Output 8 DP2_PWRUP Output 9 10 11 12 13 BUS_PWRED VCC5O/VCC5IK GND5O/GND5IK VCC3V DP1_PWRUP Input Power Power Power Output 14 GANGPOWER Input 15 DP1_OVRCUR Input SYSTEM ARCHITECTURE AND REFERENCE DESIGN 6 16 17 SUSPEND DP2_OVRCUR Output Input Device is in suspended state: Active high. Downstream port 2 over-current indicator. Active low. 18 19 20 21 22 NC AGND/GNDO XTAL_1 XTAL_2 DP3_PWRUP Power Input Output Output +5 V power supply. Crystal in. Crystal out. Downstream port 3 power switch control. Active low. Downstream port 4 over-current indicator. Active low. Downstream port 3 over-current indicator. Active low. USB D- for upstream. USB D+ for upstream port. Need external 1.5KΩ pull-up to 3.3V. USB D- for downstream port 1; add 15KΩ pull-down to ground. USB D+ for downstream port 1; add 15KΩ pulldown to ground. 23 DP4_OVRCUR Input 24 DP3_OVRCUR Input 25 26 USB_DM USB_DP Input/Output Input/Output 27 USB1_DM Input/Output 28 USB1_DP Input/Output SYSTEM ARCHITECTURE AND REFERENCE DESIGN 7 This Page Intentionally Left Blank SYSTEM ARCHITECTURE AND REFERENCE DESIGN 8 4.0 System Architecture and Reference Design 4.1. AU9254A21 Block Diagram ROOT PORT XCVR USB SIE SUSPEND, COMMAND RESUME AND PROCESSOR FRAME TIMER DESC. ROM HUB REPEATER PORT CONTROL 3.3V VOLTAGE REGULATOR ..... PORT CONTROL 3.3V 4X PLL XCVR XCVR 12 MHz PORT 1 ..... PORT 4 SYSTEM ARCHITECTURE AND REFERENCE DESIGN 9 4.2 Sample Schematics R1 1.5K VCC VCC3 C1 C2 1 2 3 4 5 6 CON1 PW DATADATA+ GND FGND1 FGND2 USB-B U1 DM2 DP2 DM3 DP3 DM4 DP4 VCC C3 C4 R12 1K VCC3 10UF 0.1UF R2 R4 R6 R8 R10 R11 39 39 39 39 39 39 1 2 3 4 5 6 7 8 9 10 11 12 13 14 USB2_DM USB2_DP USB3_DM USB3_DP USB4_DM USB4_DP DP4_PWRUP DP2_PWRUP BUS_PWRED VCC50/VCC5IK GND5O/GND5I VCC3V DP1_PWRUP GANGPOWER USB1_DP USB1_DM USB_DP USB_DM DP3_OVRCUR DP4_OVRCUR DP3_PWRUP XTAL2 XTAL1 AGND/GND0 Empty Pin DP2_OVRCUR SUSPEND DP1_OVRCUR 28 R3 27 R5 26 25 24 23 22 21 20 19 18 17 16 15 39 39 R7 R9 DP1 DM1 39 39 0.1UF 1UF XTAL2 XTAL1 SUSPEND R13 AU9254A21 10k VCC VCC VCC VCC VCC F1 MINSMDC110 F2 MINSMDC110 F3 MINSMDC110 F4 MINSMDC110 USB_VCC1 C6 150UF C7 150UF USB_VCC2 C8 150UF USB_VCC3 C9 150UF USB_VCC4 C10 R14 39PF C11 R15 1M 39 XTAL1 Y1 12MHZ R16 39 XTAL2 Title ALCOR MICRO AU9254A21 USB 4 PORT HUB Reference Design 39PF Size A Date: Document Number A LCOR MICRO AU9254 DEMO BOARD Wednesday , December 20, 2000 Sheet 1 of 2 Rev A Disclaimer: This schematic is for reference only. Alcor Micro Corp. bears no responsibility for any error that appear in this document. Specifications are subject to change without notice. SYSTEM ARCHITECTURE AND REFERENCE DESIGN 10 CON2 USB_VCC1 USB_VCC2 DM1 DP1 USB_GND2 USB_GND1 DP2 DP1 DM2 DM1 USB_VCC2 USB_VCC1 Down Down Up D2 LED D1 LED DM1 DP1 DM2 DP2 DM2 DP2 R18 680 R20 Q2 1 10K 1N9012 3 2 R19 R17 680 Q1 1 10K 1N9012 3 2 R25 R26 R27 R28 15K 15K 15K 15K PWR-2USB SUSPEND SUSPEND CON3 USB_VCC3 USB_VCC4 DM3 DP3 USB_GND4 USB_GND3 DP4 DP3 DM4 DM3 USB_VCC4 USB_VCC3 Up D3 LED D4 LED DM3 DP3 DM4 DP4 DM4 DP4 R21 680 R23 Q3 1 10K 1N9012 3 R24 2 R22 680 Q4 1 10K 1N9012 3 2 R29 R30 R31 R32 15K 15K 15K 15K PWR-2USB SUSPEND SUSPEND Title ALCOR MICRO AU9254A21 USB 4 PORT HUB Reference Design Size A Date: Disclaimer: This schematic is for reference only. Alcor Micro Corp. bears no responsibility for any error that appear in this document. Specifications are subject to change without notice. Document Number ALCOR MICRO AU9254 DEMO BOARD Wednesday, December 20, 2000 Sheet 2 of 2 Rev A SYSTEM ARCHITECTURE AND REFERENCE DESIGN 11 VCC_UP F1 FB U1 DM2 DP2 DM3 DP3 DM4 DP4 VCC C4 0.1UF C5 0.1UF VCC_UP D1 1N4001 K1 C7 10UF C8 0.1UF D2 RELAY SPDT D P1_PW R VCC R1 R3 R5 R8 R10 R11 DP4_PWR DP2_PWR R12 39 39 39 39 39 39 1 2 3 4 5 6 7 8 9 1K 10 11 12 13 14 USB2_DM USB2_DP USB3_DM USB3_DP USB4_DM USB4_DP DP4_PWRUP DP2_PWRUP BUS_PWRED VCC50/VCC5IK GND5O/GND5I VCC3V DP1_PWRUP GANGPOWER USB1_DP USB1_DM USB_DP USB_DM DP3_OVRCUR DP4_OVRCUR DP3_PWRUP XTAL2 XTAL1 AGND/GND0 EMPTY PIN DP2_OVRCUR SUSPEND DP1_OVRCUR 28 R2 27 R4 26 25 24 23 22 21 20 19 18 17 16 15 39 39 R6 R9 DP1 DM1 39 39 R7 VCC3 C3 1UF C1 C2 47P 47P USB-B CON1 1 2 3 4 5 6 PW DATADATA+ GND FGND1 FGND2 DP3_OVRCUR DP4_OVRCUR DP3_PWR XTAL2 XTAL1 1.5K DP2_OVRCUR SUSPEND DP1_OVRCUR R13 AU9254A21 10k C9 1N4148 VCC3 39PF C10 OUT ADJ G 4 5 R18 56K C11 R17 1K C12 D5 LED 39PF R15 1M R14 33 XTAL2 Y1 12MHZ R16 33 XTAL1 D4 LED D3 LED USB_VCC1 USB_VCC2 J1 1 3 2 Power Jack 10UF 1 2 C13 U2 EN IN 3 100UF 0.1UF R21 18K R23 R20 680 Q2 1 10K 1N9012 3 2 R22 R19 680 Q1 1 10K 1N9012 3 Title Alcor Micro Au9254A21 USB 4 Port Hub Reference Design Size A4 Date: Document Number Au9254A21 USB Hub Buspower and Selfpower Changed Thursday, September 13, 2001 Sheet 1 of 2 Rev A 2 SUSPEND VCC_UP D6 LED SUSPEND USB_VCC3 D7 LED USB_VCC4 D8 LED R24 680 R27 Q3 1 10K 1N9012 3 R28 2 R25 680 2 Q4 1 10K 1N9012 3 R29 R26 680 Q5 1 10K 1N9012 3 2 SUSPEND SUSPEND SUSPEND Disclaimer: This schematic is for reference only. Alcor Micro Corp. makes no warranty for the use of its products and bears no responsibility for any error that appear in this document. Specifications are subject to change without notice. SYSTEM ARCHITECTURE AND REFERENCE DESIGN 12 CON2 DM1 VCC DP1_PWR USB_VCC1 USB_VCC3 DP3_PWR R31 1K 1 2 3 4 5 6 7 8 DP1 U3 FLGA# ENA# OUTA GND IN_CD OUTC ENC# FLGC# FLGB# ENB# OUTB IN_AB GND1 OUTD END# FLGD# 16 15 14 13 12 11 10 9 DP2_PWR USB_VCC2 USB_VCC4 DP4_PWR R32 1K 0.1UF C19 0.1UF C20 R33 1K VCC C17 0.1UF R34 R35 R36 R37 15K 15K 15K 15K DM1 DP1 DM2 DP2 DM1 DP1 C14 47P C15 47P USB_VCC1 DM2 DP2 1 2 3 4 5 6 VCC DATADATA+ GND FGND1 FGND2 USB-A C16 0.1UF R30 1K 2527 or compatible CON3 USB_VCC2 C18 0.1UF C21 0.1UF DM2 DP2 C22 47P C23 47P 1 2 3 4 5 6 VCC DATADATA+ GND FGND1 FGND2 USB-A D P4_O VR C U R D P2_O VR C U R D P1_O VR C U R D P3_O VR C U R CON4 USB_VCC3 DM3 DP3 DM3 DP3 DM4 DP4 DM3 DP3 C24 47P C25 47P 1 2 3 4 5 6 DM4 DP4 VCC DATADATA+ GND FGND1 FGND2 USB-A Disclaimer: This schematic is for reference only. Alcor Micro Corp. makes no warranty for the use of its products and bears no responsibility for any error that appear in this document. Specifications are subject to change without notice. R38 R39 R40 R41 15K 15K 15K 15K USB_VCC4 CON5 DM4 DP4 C26 47P C27 47P 1 2 3 4 5 6 VCC DATADATA+ GND FGND1 FGND2 USB-A USB_VCC1 USB_VCC2 USB_VCC3 USB_VCC4 C28 120UF C29 120UF C30 120UF C31 120UF Title Alcor Micro Au9254A21 USB 4 Port Hub Reference Design Size A4 Date: Document Number Au9254A21 USB Hub Buspower Selfpower Changed Thursday, September 13, 2001 Sheet 2 of 2 Rev A SYSTEM ARCHITECTURE AND REFERENCE DESIGN 13 This Page Intentionally Left Blank SYSTEM ARCHITECTURE AND REFERENCE DESIGN 14 5.0 Electrical Characteristics 5.1. Absolute Maximum Ratings SYMBOL VCC VIN VOUT TSTG PARAMETER Power Supply Input Voltage Output Voltage Storage Temperature RATING -0.3 to 6.0 -0.3 to VCC+0.3 -0.3 to VCC+0.3 -40 to 125 UNITS V V V ˚ C 5.2. Recommended Operating Conditions SYMBOL VCC VIN TOPR PARAMETER Power Supply Input Voltage Operating Temperature MIN 4.5 0 -5 TYP 5.0 MAX 5.5 VCC 85 UNITS V V O C 5.3. General DC Characteristics SYMBOL IIL IIH IOZ CIN COUT CBID PARAMETER Input low current Input high current Tri-state leakage current Input capacitance Output capacitance Bi-directional buffer capacitance CONDITIONS no pull-up or pull-down no pull-up or pull-down MIN -1 -1 -10 TYP MAX 1 1 10 UNITS µA µA µA ρF ρF ρF 4 4 4 ELECTRICAL CHARACTERISTICS 15 5.4. DC Electrical Characteristics for 5 volts operation + 85OC ) TYP MAX UNITS 0.8 V 0.3*VCC V 1.10 V 1.84 V V V 1.87 V 3.22 V 0.4 V V 50 KΩ ( Under Recommended Operating Conditions and VCC=4.5v ~ 5.5v , Tj= -40OC to SYMBOL PARAMETER CONDITIONS MIN VIL Input Low Voltage TTL VIL Input Low Voltage CMOS VIL Schmitt input Low Voltage TTL VIL Schmitt input Low V oltage CMOS VIH Input High Voltage TTL 2.2 VIH Input Hight Voltage CMOS 0.7*VCC VIH Schmitt input High Voltage TTL VIH Schmitt input High Voltage CMOS VOL Output low voltage IOL=2, 4, 8, 12, 16, 24 mA VOH Output high voltage IOH=2, 4, 8, 12, 16, 24 mA 3.5 RI Input Pull-up/down resistance Vil=0V or Vih=VCC 5.5. DC Electrical Characteristics for 3.3 volts operation ( Under Recommended Operating Conditions and VCC=3.0v ~ 3.6v , Tj = -40OC to +85OC ) SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS VIL Input Low Voltage CMOS 0.3*VCC V VIL Schmitt input Low Voltage CMOS 1.22 V VIH Input Hight Voltage CMOS 0.7*VCC V VIH Schmitt input High Voltage CMOS 2.08 V VOL Output low voltage IOL=2, 4, 8, 12, 16, 24 mA 0.4 V VOH Output high voltage IOH=2, 4, 8, 12, 16, 24 mA 2.3 V RI Input Pull-up/down resistance Vil=0V or Vih=VCC 75 KΩ ELECTRICAL CHARACTERISTICS 16 5.6. Crystal Oscillator Circuit Setup for Characterization The following setup was used to measure the open loop voltage gain for crystal oscillator circuits. The feedback resistor serves to bias the circuit at its quiescent operating point and the AC coupling capacitor, Cs, is much larger than C1 and C2. 5.7. USB Transceiver Characteristics RECOMMENDED OPERATING CONDITIONS SYMBOL VCC VI VI/O VO TAMB PARAMETER DC supply voltage DC input voltage range DC input range for I/Os DC output voltage range Operating ambient temperature range in free air CONDITIONS LIMITS MIN MAX 3.0 3.6 0 5.5 0 VCC 0 VCC 0 70 UNIT V V V V ˚ C See DC and AC characteristics for individual device ELECTRICAL CHARACTERISTICS 17 ABSOLUTE MAXIMUM RATINGS (Notes 1 and 2) In accordance with the Absolute Maximum Rating System, Voltages are referenced to GND (Ground=0v) SYMBOL VCC IIK VI VI/O IOK VO IO IO ICC, IGND TSTO PTOT PARAMETER DC supply voltage DC input diode current DC input voltage DC input voltage range for I/Os DC output diode current DC output voltage DC output source sink current for VP/VM and RCV pins DC output source or sink current for D+/D- pins DC Vcc or GND current Storage temperature range Power dissipation per package CONDITIONS Vi Vcc or Vo