View AU9254_316315.PDF datasheet online --- IC-ON-LINE

Datasheet File OCR Text:

1
www..com
Data Book
AU9254
USB Hub Controller Technical Reference Manual
Product Specification Official Release Revision 1.01W Public Feb 2005
www..com
Data sheet status
Objective specification Preliminary specification Product specification This data sheet contains target or goal specifications for product development.
This data sheet contains preliminary data; supplementary data may be published later. This data sheet contains final product specifications.
Revision History
Date Feb 2005 Revision/Model 1.01W/A21 Description Removed the schematics. Please contact our sales if you need it.
Page 2 of 25 AU9254 USB Hub Controller V1.01W
Official Release_ Public
www..com
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 25 AU9254 USB Hub Controller V1.01W
Official Release_ Public
www..com
Table of Contents
1 Introduction....................................................................... 1.1 Description......................................................................................... 1.2 Features.............................................................................................. 2 Application Block Diagram................................................. 3 Pin Assignment.................................................................. 6 6 6 7 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.......................................... 5.4 DC Electrical Characteristics for 5 volts operation.................. 5.5 DC Electrical Characteristics for 3.3 volts operation............... 11 12 12 5.3 General DC Characteristics............................................................ 11
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 25 AU9254 USB Hub Controller V1.01W
Official Release_ Public
www..com
List of Figures
2.1 Block Diagram............................................................................................... 3.1 Pin Assignment Diagram............................................................................. 7 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 5.1 5.2 5.3 5.4 5.5 5.6 5.7 5.8 5.9 Pin Descriptions........................................................................................ 9 Absolute Maximum Ratings................................................................... 11 Recommended Operating Conditions.................................................. 11 General DC Characteristics.................................................................... 11 DC Electrical Characteristics for 5 volts operation.......................... 12 DC Electrical Characteristics for 3.3 volts operation.......................... 12 USB Transceiver Characteristics............................................................ 13 Absolute Maximum Ratings.................................................................... 14 DC Electrical Characteristics.................................................................. 15 AC Electrical Characteristics.................................................................. 16
5.10 ESD Data..................................................................................................... 18 5.11 Latch-Up Data............................................................................................ 20
Page 5 of 25 AU9254 USB Hub Controller V1.01W
Official Release_ Public
www..com
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 25 AU9254 USB Hub Controller V1.01W
Official Release_ Public
www..com
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
SCANNER
PRINTER
ALCOR MICRO AU9254
USB DOWNSTREAM PORTS
USB DOWNSTREAM PORTS MOUSE
Keyboard
Page 7 of 25 AU9254 USB Hub Controller V1.01W
Official Release_ Public
www..com
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 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
Page 8 of 25 AU9254 USB Hub Controller V1.01W
Official Release_ Public
www..com
Table 3.1 Pin Descriptions of AU9254, 28-pin SSOP
Pin # 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 Pin Name USB_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 DP1_OVRCUR SUSPEND DP2_OVRCUR NC AGND/GNDO XTAL_1 XTAL_2 DP3_PWRUP DP4_OVRCUR DP3_OVRCUR USB_DM USB_DP USB1_DM USB1_DP Power Input Output Output Input Input Input/Output Input/Output Input/Output Input/Output Ground. 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 1.5K pull-up to 3.3V. USB D- for downstream port 1; add 15K pull-down to ground. USB D+ for downstream port 1; add 15K pull-down to ground. Input/Output Input/Output Input/Output Input/Output Input/Output Input/Output Input/Output Output Output Input Power Power Power Output Input Input Output Input Description USB D- for downstream port 2; add 15K pull-down to ground. USB D+ for downstream port 2; add 15K pull-down to ground. USB D- for downstream port 3; add 15K pull-down to ground. USB D+ for downstream port 3; add 15K pull-down to ground. USB D- for downstream port 4; add 15K pull-down to ground. USB D+ for downstream port 4; add 15K pull-down 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. Device is in suspended state: Active high. Downstream port 2 over-current indicator. Active low.
Page 9 of 25 AU9254 USB Hub Controller V1.01W
Official Release_ Public
www..com
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 VOLTAGE REGULATOR
.....
PORT CONTROL
3.3V
4X PLL
XCVR
XCVR
12 MHz
PORT 1
.....
PORT 4
Page 10 of 25 AU9254 USB Hub Controller V1.01W
Official Release_ Public
www..com
5.0 Electrical Characteristics
5.1 Absolute Maximum Ratings
Table 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
Table 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
Table 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 4 4 4 TYP MAX 1 1 10 UNITS A A A F F F
Page 11 of 25 AU9254 USB Hub Controller V1.01W
Official Release_ Public
www..com
5.4 DC Electrical Characteristics for 5 volts operation
( Under SYMBOL VIL VIL VIL VIL VIH VIH VIH VIH VOL VOH RI Recommended Operating Conditions and VCC=4.5v ~ 5.5v , Tj= -40OC MIN TYP to + 85OC ) UNITS V V V V V V 1.87 3.22 0.4 3.5 50 V V V V K
Table 5.4 Electrical Characteristics for 5 volts operation
PARAMETER Input Low Voltage Input Low Voltage Schmitt input Low Voltage Schmitt input Low V oltage Input High Voltage Input Hight Voltage Schmitt input High Voltage Schmitt input High Voltage Output low voltage Output high voltage Input Pull-up/down resistance CONDITIONS TTL CMOS TTL CMOS TTL CMOS TTL CMOS IOL=2, 4, 8, 12, 16, 24 mA IOH=2, 4, 8, 12, 16, 24 mA Vil=0V or Vih=VCC 2.2 0.7*VCC 1.10 1.84 MAX 0.8 0.3*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 )
Table 5.5 DC Electrical Characteristics for 3.3 volts operation
SYMBOL VIL VIL VIH VIH VOL VOH RI PARAMETER Input Low Voltage Schmitt input Low Voltage Input Hight Voltage Schmitt input High Voltage Output low voltage Output high voltage Input Pull-up/down resistance CONDITIONS CMOS CMOS CMOS CMOS IOL=2, 4, 8, 12, 16, 24 mA IOH=2, 4, 8, 12, 16, 24 mA Vil=0V or Vih=VCC 2.3 75 0.7*Vcc 2.08 0.4 1.22 MIN TYP MAX 0.3*VCC UNITS V V V V V V K
Page 12 of 25 AU9254 USB Hub Controller V1.01W
Official Release_ Public
www..com
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 PARAMETER CONDITIONS LIMITS MIN 3.0 0 0 0 MAX 3.6 5.5 VCC VCC UNIT
VCC VI VI/O VO
DC supply voltage DC input voltage range DC input range for I/Os DC output voltage range See DC and AC Operating ambient temperature characteristics for range in free air individual device
V V V V
TAMB
0
70
C
Page 13 of 25 AU9254 USB Hub Controller V1.01W
Official Release_ Public
www..com
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 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 -60 Vo> Vcc or Vo<0 Note 3 Vo=0 to Vcc Vo= 0 to Vcc -0.5 Vi<0 Note 3 -0.5 -0.5 CONDITIONS LIMITS MIN -0.5 MAX +6.5 -50 +5.5 Vcc +0.5 +/-50 Vcc +0.5 +/-15 +/-50 +/-100 +150 UNIT V mA V V mA V mA mA mA
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 150C. 3. The input and output voltage ratings may be exceeded if the input and output clamp current ratings are observed.
Page 14 of 25 AU9254 USB Hub Controller V1.01W
Official Release_ Public
www..com
DC ELECTRICAL CHARACTERISTICS
Over recommended operating conditions. Voltages are referenced to GND (Ground=0V). LIMITS -400C to +850C MIN TYP MAX 0.3 0.4 0.5
Table 5.8 DC Electrical Characteristics
SYMBOL PARAMETER TEST CONDITIONS UNIT
VHYS
Hysteresis on inputs
Vcc=3.0V to 3.6V (Note 3)
V
VIH VIL RoH RoL VOH VOL IQ Isup IFS ILS ILeak IOFF
HIGH level input LOW level input Output impedance (HIGH state) Output impedance (LOW state) HIGH level output (Note 3) LOW level output (Note 3) Quiescent supply current Supply current in suspend Active supply current (Full Speed) Active supply current (Low Speed) Imput leakage current 3-state output OFF-state current
Vcc=3.0V to 3.6V (Note 3) Vcc=3.0V to 3.6V (Note 3) Note 2 Note 2 Vcc=3.0V Vcc=3.0V Vcc=3.0V Vcc=3.0V Vcc=3.0V Vcc=3.0V Vcc=3.6V Io=0 Vcc=3.6V Io=0 Vcc=3.3V Vcc=3.3V Vcc=3.6V VI=5.5V or GND, not for I/O Pins Vi=Vih or ViL; Vo=Vcc or GND Io=6mA Io=4mA Io=100A Io=6mA Io=4mA Io=100A VI=Vcc VI=Vcc or or GND GND 0.8 28 28 2.2 2.4 2.8
1.5 1.1 34 35 2.7 0.3 330
2.0
V V
43 43
ohm ohm V
0.7 0.4 0.2 600 70
V A A mA mA
9 2 +/-0.1
14
+/-0.5 +/-10
A A
NOTES: 1. All typical values are at Vcc=3.3V and Tamb=25C. 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 25 AU9254 USB Hub Controller V1.01W
Official Release_ Public
www..com
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) 00C to +250C 00C to +700C UNIT MIN TYP MAX MIN MAX 0 0 4 4 9 9 12 12 20 20 0 0 4 4 14 14 20 20 ns
tpLH tpHL trise tfall tRFM
VMO/VPO to D+/DFull Speed Rise and Fall Times Full Speed Rise and Fall Time Matching Full Speed VMO/VPO to D+/DLow Speed Rise and Fall Times Low Speed Rise and Fall Time Matching Low Speed
1
2
ns
90
110
90
110
%
tpLH tpHL trise tfall tRFM
1
120 120 75 75
300 300 300 200 75 75
300 300 300 200
ns
2
ns
70
130
70
130
%
tpLH tpHL tpLH tpHL tpHZ tpZH tpLZ tpZL tsu
D+/D- to RCV
3
9 9 4 4
16 16 8 8 12 12 10 10
16 16 8 8 12 12 10 10
ns
D+/D- to VP/VM
1
ns
OE# to D+/D- RL = 500ohm
4
ns
Setup for SPEED
5
0
ns
Vcr
Crossover point1
3
1.3
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 25 AU9254 USB Hub Controller V1.01W
Official Release_ Public
www..com
Figure 5.2 Electrical Characteristics Diagram
Page 17 of 25 AU9254 USB Hub Controller V1.01W
Official Release_ Public
www..com
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 HBM MM Mode Vdd, Vss, I/C Vdd, Vss, I/C S/S 15 15 Target 6000V 200V Results PASS PASS
Page 18 of 25 AU9254 USB Hub Controller V1.01W
Official Release_ Public
www..com
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 25 AU9254 USB Hub Controller V1.01W
Official Release_ Public
www..com
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 9.0 S/S 5 5 5 5 5 Results Pass Pass Pass Pass Pass
Vdd - Vxx
Page 20 of 25 AU9254 USB Hub Controller V1.01W
Official Release_ Public
www..com
6.0 Mechanical Information
6.1 Normal Size Package (Body Size 209 mil)
Following diagrams show the dimensions of the normal size 28-pin SSOP package. Measurements are in inches. Dimensions do not include mold flash and dambar protrusion; allowable mold flash is 0.010 inch.
Page 21 of 25 AU9254 USB Hub Controller V1.01W
Official Release_ Public
www..com
COMMON DIMENSION SYMBOL MIN. A A1 A2 b b1 c c1 D E E1 e L L1 R1 0.09 00 40 80 0.55 0.05 1.65 0.22 0.22 0.09 0.09 9.9 7.40 5.00 0.15 10.2 7.80 5.30 0.65 BSC 0.75 0.25 REF. 0.95 0.30 1.75 1.85 0.38 0.33 0.25 0.21 10.5 8.20 5.60 MILLIMETERS NOM. MAX. 2.00
COMMON DIMENSION INCH MIN. 0.002 0.065 0.009 0.009 0.004 0.004 0.390 0.291 0.197 0.021 0.004 00 40 80 0.006 0.402 0.307 0.209 0.0256 BSC 0.030 0.050 REF. 0.037 0.012 0.069 0.073 0.015 0.013 0.010 0.008 0.413 0.323 0.220 NOM. MAX. 0.079
Page 22 of 25 AU9254 USB Hub Controller V1.01W
Official Release_ Public
www..com
6.2 Small Size Package (Body Size 150 mil)
Following diagrams show the dimensions of the small size 28-pin SSOP package. Measurements are in inches. Dimensions do not include mold flash and dambar protrusion; allowable mold flash is 0.010 inch.
Page 23 of 25 AU9254 USB Hub Controller V1.01W
Official Release_ Public
www..com
R REV. ORIG.
DESCRIPTION 1. REGENERATED FROM PO-P402 VERSION"A" 2. ADD GAUGE PLANE ADD CROSS SECTIONA-A" DRAWING MODIFY 0.020 TO 0.002 ADD E-PIN CHANGE PIN "I" DOT DIMENSION
BY JIMMY STEVEN IRIS IRIS
DATE 97.04.21 97.07.31 97.08.21 98.06.10
SYMBOL A A1 A2 b b1 c c1 D E E1 e L L1 R1 R2
COMMON DIMENSION MILLIMETERS MIN. NOM. MAX. 2 0.05 1.65 1.75 1.85 0.22 0.38 0.22 0.3 0.33 0.09 0.25 0.09 0.15 0.21 9.90 10.20 10.50 7.4 7.8 8.2 5 5.3 5.6 0.65 BSC 0.55 0.75 0.95 0.25 REF. 0.09 0.09 0 40 80
COMMON DIMENSION INCH MIN. NOM. MAX. 0.079 0.002 0.065 0.069 0.073 0.009 0.015 0.009 0.012 0.013 0.004 0.01 0.004 0.006 0.008 0.390 0.402 0.413 0.291 0.307 0.323 0.197 0.209 0.22 0.0256 BSC 0.021 0.03 0.037 0.050 REF. 0.004 0.004 0 40 80
N 0 0.30 JEDEC NO.
14 6.20 MO-150 AB
16 6.20 MO-150 AC
18 7.20 MO-150 AD
20 7.20 MO-150 AE
24 8.20 MO-150 AG
28 10.20 MO-150 AH
UNLESS OTHERWISE
DECMAL X xx O O .10
ANGULAR ORENT SEMCONOUCTOR ELECTRONICS
UNIT
MM
SCALE:10:1
O 3X
SPECIFIED DRAWN CHECKED APPROVED
xxx O .05 IRIS 98.06.10 TITLE SSOP 14/16/20/21/28L(209MIL) PACKAGE OUTLINE
SHEET:1 OF1 FILE:PD-P503C DWG. NO.: PD-P503C A3
Page 24 of 25 AU9254 USB Hub Controller V1.01W
Official Release_ Public
www..com
i
MEMOj
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 25 of 25 AU9254 USB Hub Controller V1.01W
Official Release_ Public

▲Up To Search▲

Price & Availability of AU9254

	To Download AU9254 Datasheet File
If you can't view the Datasheet, Please click here to try to view without PDF Reader .