1 Data Book AU9254 USB Hub Controller Technical Reference Manual Product Specification Official Release Revision 1.02W Public Nov 2005 Data sheet status Objective specification This data sheet contains target or goal specifications for product development. Preliminary specification This data sheet contains preliminary data; supplementary data may be published later. Product specification This data sheet contains final product specifications. Revision History Date Revision/Model Description Feb 2005 1.01W Removed the schematics. Please contact our sales if you need it. Nov 2005 1.02W To modified “6.0 Mechanical Information” Page 2 of 23 AU9254 USB Hub Controller V1.02W Official Release_ Public Copyright Notice Copyright 1997 - 2005 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 prior notice. 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 prior notice. Contact Information: Web site: http://www.alcormicro.com/ Taiwan Alcor Micro Corp. 4F, No 200 Kang Chien Rd., Nei Hu, Taipei, Taiwan, R.O.C. Phone: 886-2-8751-1984 Fax: 886-2-2659-7723 Santa Clara Office 2901 Tasman Drive, Suite 206 Santa Clara, CA 95054 USA Phone: (408) 845-9300 Fax: (408) 845-9086 Los Angeles Office 9400 Seventh St., Bldg. A2 Rancho Cucamonga, CA 91730 USA Phone: (909) 483-9900 Fax: (909) 944-0464 Page 3 of 23 AU9254 USB Hub Controller V1.02W Official Release_ Public Table of Contents 1 Introduction…………………………………………………………….. 6 1.1 Description…………………………………………………………………………….. 6 1.2 Features…………………………………………………………………………………. 6 2 Application Block Diagram…………………………………………. 7 3 Pin Assignment………………………………………………………… 8 4 System Architecture and Reference Design………………….. 10 4.1 AU9254 Block Diagram…………………………………………………………. 10 5 Electrical Characteristics…………………………………………… 11 5.1 Absolute Maximum Ratings………………………………………………….. 11 5.2 Recommended Operating Conditions…………………………………… 11 5.3 General DC Characteristics…………………………………………………… 11 5.4 DC Electrical Characteristics for 5 volts operation……………… 12 5.5 DC Electrical Characteristics for 3.3 volts operation…………… 12 5.6 Crystal Oscillator Circuit Setup for Characterization……………. 13 5.7 USB Transceiver Characteristics…………………………………………… 13 5.8 ESD Test Results…………………………………………………………………….. 18 5.9 Latch-Up Test Results…………………………………………………………….. 19 6 Mechanical Information……………………………………………… 21 6.1 Normal Size Package (Body Size 209 mil)……………………………. 21 6.2 Small Size Package (Body Size 150 mil)………………………………. 23 Page 4 of 23 AU9254 USB Hub Controller V1.02W Official Release_ Public List of Figures 2.1 Block Diagram………………………………………………………………………………….. 7 3.1 Pin Assignment Diagram………………………………………………………………….. 8 4.1 AU9254 Block diagram……………………………………………………………………… 10 5.1 Crystal Oscillator Circuit Setup for Characterization………………………. 13 5.2 Electrical Characteristics Diagram…………………………………………………… 17 5.3 Latch-Up Test Results Diagram…………………………………………………………. 19 6.1 Mechanical Information Diagram…………………………………………………….. 21 List of Tables 3.1 Pin Descriptions……………………………………………………………………………. 5.1 Absolute Maximum Ratings…………………………………………………………. 11 5.2 Recommended Operating Conditions………………………………………….. 11 5.3 General DC Characteristics………………………………………………………….. 11 5.4 DC Electrical Characteristics for 5 volts operation…………………..… 12 5.5 DC Electrical Characteristics for 3.3 volts operation…………………….. 12 5.6 USB Transceiver Characteristics…………………………………………………… 13 5.7 Absolute Maximum Ratings………………………………………………………….. 14 5.8 DC Electrical Characteristics………………………………………………………… 15 5.9 AC Electrical Characteristics………………………………………………………… 16 9 5.10 ESD Data……………………………………………………………………………………….. 18 5.11 Latch-Up Data……………………………………………………………………………….. 20 Page 5 of 23 AU9254 USB Hub Controller V1.02W Official Release_ Public 1.0 Introduction 1.1 Description The AU9254 is an integrated single chip USB hub controller designed for the emerging industry-standard Universal Serial Bus (USB). The AU9254 supports four USB downstream ports. Each downstream port has power switch control, and over-current sensing. Single chip integration makes the AU9254 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. Page 6 of 23 AU9254 USB Hub Controller V1.02W Official Release_ Public 2.0 Application Block Diagram The AU9254 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. Figure 2.1 Block Diagram USB HOST SYSTEM PRINTER SCANNER ALCOR MICRO AU9254 USB DOWNSTREAM PORTS USB DOWNSTREAM PORTS MOUSE Keyboard Page 7 of 23 AU9254 USB Hub Controller V1.02W Official Release_ Public 3.0 Pin Assignment The AU9254 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. Figure 3.1 Pin Assignment Diagram USB2_DM 1 28 USB1_DP USB2_DP 2 27 USB1_DM USB3_DM 3 26 USB_DP USB3_DP 4 25 USB_DM USB4_DM 5 24 DP3_OVRCUR USB4_DP 6 23 DP4_OVRCUR DP4_PWRUP 7 22 DP3_PWRUP DP2_PWRUP 8 21 XTAL2 BUS_PWRED 9 20 XTAL1 VCC5O/VCC5IK 10 19 AGND/GNDO GND5O/GND5IK 11 18 NC VCC3V 12 17 DP2_OVRCUR DP1_PWRUP 13 16 SUSPEND GANGPOWER 14 15 DP1_OVRCUR ALCOR MICRO AU9254 A21 USB HUB CONTROLLER 28 - PIN SSOP Page 8 of 23 AU9254 USB Hub Controller V1.02W Official Release_ Public Table 3.1 Pin Descriptions of Au9254, 28-pin SSOP Pin # Pin Name Input/Output Description 1 USB_DM Input/Output USB D- for downstream port 2; add 15KΩ pull-down to ground. 2 USB2_DP Input/Output USB D+ for downstream port 2; add 15KΩ pull-down to ground. 3 USB3_DM Input/Output USB D- for downstream port 3; add 15KΩ pull-down to ground. 4 USB3_DP Input/Output USB D+ for downstream port 3; add 15KΩ pull-down to ground. 5 USB4_DM Input/Output USB D- for downstream port 4; add 15KΩ pull-down to ground. 6 USB4_DP Input/Output USB D+ for downstream port 4; add 15KΩ pull-down to ground 7 DP4_PWRUP Output Downstream port 4 power switch control. Active low. 8 DP2_PWRUP Output Downstream port 2 power switch control. Active low. 9 BUS_PWRED Input Bus power. Low indicates bus-powered. 10 VCC5O/VCC5IK Power +5 V power supply. 11 GND5O/GND5IK Power Ground. 12 VCC3V Power 3.3V output for upstream D+ pull-up. 13 DP1_PWRUP Output Downstream port 1 power switch control. Active low. 14 GANGPOWER Input Ganged or individual port power selection. Add a 10k pull down for ganged power. 10k pull up for individual power. 15 DP1_OVRCUR Input Downstream port 1 over-current indicator. Active low. 16 SUSPEND Output 17 DP2_OVRCUR Input Downstream port 2 over-current indicator. Active low. 18 NC 19 AGND/GNDO Power Ground. 20 XTAL_1 Input Crystal in. 21 XTAL_2 Output Crystal out. 22 DP3_PWRUP Output Downstream port 3 power switch control. Active low. 23 DP4_OVRCUR Input Downstream port 4 over-current indicator. Active low. 24 DP3_OVRCUR Input Downstream port 3 over-current indicator. Active low. 25 USB_DM Input/Output USB D- for upstream. 26 USB_DP Input/Output USB D+ for upstream port. Need external 1.5KΩ pull-up to 3.3V. 27 USB1_DM Input/Output USB D- for downstream port 1; add 15KΩ pull-down to ground. 28 USB1_DP Input/Output USB D+ for downstream port 1; add 15KΩ pull-down to ground. Device is in suspended state: Active high. Page 9 of 23 AU9254 USB Hub Controller V1.02W Official Release_ Public 4.0 System Architecture and Reference Design 4.1 AU9254 Block Diagram Figure4.1 AU9254 Block Diagram ROOT PORT XCVR USB SIE COMMAND PROCESSOR SUSPEND, RESUME AND FRAME TIMER DESC. ROM HUB REPEATER PORT CONTROL 3.3V 3.3V VOLTAGE REGULATOR 4X PLL 12 MHz ..... XCVR PORT 1 PORT CONTROL XCVR ..... PORT 4 Page 10 of 23 AU9254 USB Hub Controller V1.02W Official Release_ Public 5.0 Electrical Characteristics 5.1 Absolute Maximum Ratings Table 5.1 Absolute Maximum Ratings SYMBOL PARAMETER RATING UNITS VCC Power Supply -0.3 to 6.0 V VIN Input Voltage -0.3 to VCC+0.3 V VOUT Output Voltage -0.3 to VCC+0.3 TSTG Storage Temperature V ˚ -40 to 125 C 5.2 Recommended Operating Conditions Table 5.2 Recommended Operating Conditions SYMBOL PARAMETER MIN TYP MAX UNITS VCC Power Supply 4.5 5.0 5.5 V VIN Input Voltage 0 VCC V TOPR Operating Temperature -5 85 O C 5.3 General DC Characteristics Table 5.3 General DC Characteristics SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS IIL Input low current no pull-up or pull-down -1 1 µA IIH Input high current no pull-up or pull-down -1 1 µA IOZ Tri-state leakage current -10 10 µA CIN Input capacitance 4 ρF COUT Output capacitance 4 ρF CBID Bi-directional buffer capacitance 4 ρF Page 11 of 23 AU9254 USB Hub Controller V1.02W Official Release_ Public 5.4 DC Electrical Characteristics for 5 volts operation ( Under Recommended Operating VCC=4.5v ~ 5.5v , Tj= -40OC Conditions and to + 85OC ) Table 5.4 Electrical Characteristics for 5 volts operation SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS VIL Input Low Voltage TTL 0.8 V VIL Input Low Voltage CMOS 0.3*VCC V VIL Schmitt input Low Voltage TTL 1.10 V VIL Schmitt input Low V oltage CMOS 1.84 V VIH Input High Voltage TTL 2.2 V VIH Input Hight Voltage CMOS 0.7*VCC V VIH Schmitt input High Voltage TTL 1.87 V VIH Schmitt input High Voltage CMOS 3.22 V VOL Output low voltage IOL=2, 4, 8, 12, 16, 24 mA VOH Output high voltage IOH=2, 4, 8, 12, 16, 24 mA RI Input Pull-up/down resistance Vil=0V or 0.4 V 3.5 Vih=VCC V 50 KΩ 5.5 DC Electrical Characteristics for 3.3 volts operation ( Under Recommended Operating Conditions and VCC=3.0v ~ 3.6v , Tj = -40OC to +85OC ) Table 5.5 DC Electrical Characteristics for 3.3 volts operation SYMBOL PARAMETER CONDITIONS VIL Input Low Voltage CMOS VIL Schmitt input Low Voltage CMOS VIH Input Hight Voltage CMOS 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 RI Input Pull-up/down resistance Vil=0V or Vih=VCC MIN TYP MAX UNITS 0.3*VCC V 1.22 V 0.7*Vcc V 2.08 V 0.4 2.3 V V 75 KΩ Page 12 of 23 AU9254 USB Hub Controller V1.02W Official Release_ Public 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. Figure 5.1 Crystal Oscillator Circuit Setup for Characterization 5.7 USB Transceiver Characteristics RECOMMENDED OPERATING CONDITIONS Table 5.6 USB Transceiver Characteristics SYMBOL VCC PARAMETER CONDITIONS DC supply voltage LIMITS UNIT MIN MAX 3.0 3.6 V VI DC input voltage range 0 5.5 V VI/O DC input range for I/Os 0 VCC V VO DC output voltage range 0 VCC V TAMB See DC and AC Operating ambient temperature characteristics for range in free air individual device 0 70 ˚ C Page 13 of 23 AU9254 USB Hub Controller V1.02W Official Release_ Public ABSOLUTE MAXIMUM RATINGS (Notes 1 and 2) In accordance with the Absolute Maximum Rating System, Voltages are referenced to GND (Ground=0v) Table 5.7 Absolute Maximum Ratings SYMBOL PARAMETER VCC DC supply voltage IIK DC input diode current VI DC input voltage CONDITIONS LIMITS MAX -0.5 +6.5 V -50 mA -0.5 +5.5 V -0.5 Vcc +0.5 V +/-50 mA Vcc +0.5 V Vi<0 Note 3 UNIT MIN VI / O DC input voltage range for I/Os IOK DC output diode current VO DC output voltage IO DC output source sink current for VP/VM and RCV pins Vo=0 to Vcc +/-15 mA IO DC output source or sink current for D+/D- pins Vo= 0 to Vcc +/-50 mA +/-100 mA ICC, IGND Vo> Vcc or Vo<0 Note 3 -0.5 DC Vcc or GND current TSTO Storage temperature range PTOT Power dissipation per package -60 +150 ˚ C mW NOTES: 1. Stresses beyond those listed may cause permanent damage to the device. These are stress ratings only and functional operation of the device at these or any other conditions beyond those indicated under "Recommended Operating Conditions" is not implied. Exposure to absolute maximum rated conditions for extended periods may affect device reliability. 2. The performance capability of a high performance integrated circuit in conjunction with its thermal environment can create junction temperatures which are detrimental to reliability. The maximum junction temperature of this integrated circuit should not exceed 150˚C. 3. The input and output voltage ratings may be exceeded if the input and output clamp current ratings are observed. Page 14 of 23 AU9254 USB Hub Controller V1.02W Official Release_ Public DC ELECTRICAL CHARACTERISTICS Over recommended operating conditions. Voltages are referenced to GND (Ground=0V). Table 5.8 DC Electrical Characteristics SYMBOL VHYS PARAMETER TEST CONDITIONS LIMITS -400˚C to +850˚C MIN TYP MAX Hysteresis on inputs Vcc=3.0V to 3.6V (Note 3) VIH HIGH level input Vcc=3.0V to 3.6V (Note 3) VIL LOW level input Vcc=3.0V to 3.6V (Note 3) 0.8 1.1 RoH Output impedance (HIGH state) Note 2 28 34 43 ohm RoL Output impedance (LOW state) Note 2 28 35 43 ohm VOH HIGH level output (Note 3) 2.2 2.4 2.8 2.7 VOL LOW level output (Note 3) Vcc=3.0V Vcc=3.0V Vcc=3.0V Vcc=3.0V Vcc=3.0V Vcc=3.0V Io=6mA Io=4mA Io=100µA Io=6mA Io=4mA Io=100µA 0.3 UNIT 0.4 0.5 V 1.5 2.0 V V V 0.3 0.7 0.4 0.2 V 330 600 µA 70 µA 14 mA IQ Quiescent supply current Vcc=3.6V Io=0 VI=Vcc or GND Isup Supply current in suspend Vcc=3.6V Io=0 VI=Vcc or GND IFS Active supply current (Full Speed) Vcc=3.3V 9 ILS Active supply current (Low Speed) Vcc=3.3V 2 ILeak Imput leakage current Vcc=3.6V VI=5.5V or GND, not for I/O Pins IOFF 3-state output OFF-state current Vi=Vih or ViL; Vo=Vcc or GND mA +/-0.1 +/-0.5 µA +/-10 µA NOTES: 1. All typical values are at Vcc=3.3V and Tamb=25˚C. 2. This value includes an external resistor of 24 ohm +/-1%. See "Load D+ and D-" diagram for testing details. 3. All signals except D+ and D-. Page 15 of 23 AU9254 USB Hub Controller V1.02W Official Release_ Public AC ELECTRICAL CHARACTERISTICS GND=0V, tR = tF =3.0 ns; CL =50 pF; RL=500 Ohms Table 5.9 AC Electrical Characteristics SYMBOL PARAMETER WAVEFORM LIMITS (TAMB) 00˚C to +250˚C 00˚C to +700˚C UNIT MIN TYP MAX MIN MAX tpLH tpHL VMO/VPO to D+/DFull Speed 1 0 0 trise tfall Rise and Fall Times Full Speed 2 4 4 tRFM Rise and Fall Time Matching Full Speed tpLH tpHL VMO/VPO to D+/DLow Speed 1 trise tfall Rise and Fall Times Low Speed 2 tRFM Rise and Fall Time Matching Low Speed 9 9 90 120 120 12 12 0 0 14 14 ns 20 20 4 4 20 20 ns 110 90 110 % 300 300 ns 300 300 75 75 300 200 75 75 300 200 ns 70 130 70 130 % tpLH tpHL D+/D- to RCV 3 9 9 16 16 16 16 ns tpLH tpHL D+/D- to VP/VM 1 4 4 8 8 8 8 ns tpHZ tpZH tpLZ tpZL OE# to D+/D- RL = 500ohm 4 12 12 10 10 12 12 10 10 ns tsu Setup for SPEED 5 0 Vcr Crossover point1 3 1.3 ns 2.0 1.3 2.0 V NOTES: 1. The crossover point is in the range of 1.3V to 2.5V for the low speed mode with a 50 pF capacitance. Page 16 of 23 AU9254 USB Hub Controller V1.02W Official Release_ Public Figure 5.2 Electrical Characteristics Diagram Page 17 of 23 AU9254 USB Hub Controller V1.02W Official Release_ Public 5.8 ESD Test Results Test Description: ESD Testing was performed on a Zapmaster system using the Human-Body-Model (HBM) and Machine-Model (MM), according to MIL-STD 883 and EIAJ IC-121 respectively. • Human-Body-Model stresses devices by sudden application of a high voltage supplied by a 100pF capacitor through 1.5k-ohm resistance. • Machine-Model stresses devices by sudden application of a high voltage supplied by a 200pF capacitor through very low (0 ohm) resistance. Test Circuit & Condition - Zap Interval: 1 second - Number of Zaps: 3 positive and 3 negative at room temperature - Criteria: I-V Curve Tracing Table 5.10 ESD Data Model Mode S/S Target Results HBM Vdd, Vss, I/C 15 6000V PASS MM Vdd, Vss, I/C 15 200V PASS Page 18 of 23 AU9254 USB Hub Controller V1.02W Official Release_ Public 5.9 Latch-Up Test Results Test Description: Latch-Up testing was performed at room ambient using an IMCS-4600 system which applies a stepped voltage to one pin per device with all other pins open except Vdd and Vss which were biased to 5Volts and ground respectively. Testing was started at 5.0V (Positive) or 0V (Negative), and the DUT was biased for 0.5 seconds. If neither the PUT current supply nor the device current supply reached the predefined limit (DUT=00mA, Icc=100mA), then the voltage was increased by 0.1Volts and the pin was tested again. This procedure was recommended by the JEDEC JC-40.2 CMOS Logic standardization committee. Notes: 1. DUT: The device under test. 2. PUT: The pin under test. Figure 5.3 Latch-Up Test Results Diagram Test Circuit: Positive Input/Output Overvoltage/Overcurrent Page 19 of 23 AU9254 USB Hub Controller V1.02W Official Release_ Public Test Circuit: Negative Input/Output Overvoltage/Overcurrent Supply Overvoltage Test Table 5.11 Latch-Up Data Mode Voltage Current + + - Voltage (V)/CUITENT(ma) 11.0 11.0 200 200 S/S 5 5 5 5 Results Pass Pass Pass Pass 9.0 5 Pass Vdd - Vxx Page 20 of 23 AU9254 USB Hub Controller V1.02W Official Release_ Public 6.0 Mechanical Information 6.1 Normal Size Package (Body Size 209 mil) Page 21 of 23 AU9254 USB Hub Controller V1.02W Official Release_ Public 6.2 Small Size Package (Body Size 150 mil) Page 22 of 23 AU9254 USB Hub Controller V1.02W Official Release_ Public 【MEMO】 About Alcor Micro, Corp Alcor Micro, Corp. designs, develops and markets highly integrated and advanced peripheral semiconductor, and software driver solutions for the personal computer and consumer electronics markets worldwide. We specialize in USB solutions and focus on emerging technology such as USB and IEEE 1394. The company offers a range of semiconductors including controllers for USB hub, integrated keyboard/USB hub and USB Flash memory card reader…etc. Alcor Micro, Corp. is based in Taipei, Taiwan, with sales offices in Taipei, Japan, Korea and California. Alcor Micro is distinguished by its ability to provide innovative solutions for spec-driven products. Innovations like single chip solutions for traditional multiple chip products and on-board voltage regulators enable the company to provide cost-efficiency solutions for the computer peripheral device OEM customers worldwide. Page 23 of 23 AU9254 USB Hub Controller V1.02W Official Release_ Public