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AU9254 A21 USB Hub Controller Technical Reference Manual
Revision 1.1
(c) 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
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TABLE OF CONTENTS
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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
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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
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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 15K pull-down to ground. USB D+ for downstream port 2; add 15K pulldown to ground. USB D- for downstream port 3; add 15K pull-down to ground. USB D+ for downstream port 3; add 15K pulldown to ground. USB D- for downstream port 4; add 15K pull-down to ground. USB D+ for downstream port 4; add 15K 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 1.5K 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 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
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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
ALCOR 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
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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 A A A F F F
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 K
( 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 K
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<0 Note 3 LIMITS MIN MAX -0.5 +6.5 -50 -0.5 +5.5 -0.5 Vcc +0.5 +/-50 -0.5 Vcc +0.5 +/-15 +/-50 +/-100 +150 UNIT V mA V V mA V mA mA mA C mW
Vo> Vcc or Vo<0 Note 3 Vo=0 to Vcc Vo= 0 to Vcc
-60
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.
ELECTRICAL CHARACTERISTICS
18
DC ELECTRICAL CHARACTERISTICS Over recommended operating conditions. Voltages are referenced to GND (Ground=0V). SYMBOL VHYS VIH VIL RoH RoL VOH PARAMETER Hysteresis on inputs 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 TEST CONDITIONS Vcc=3.0V to 3.6V (Note 3) Vcc=3.0V to 3.6V (Note 3) Vcc=3.0V to 3.6V (Note 3) Note 2 Note 2 Vcc=3.0V Io=6mA Vcc=3.0V Io=4mA Vcc=3.0V Io=100A Vcc=3.0V Io=6mA Vcc=3.0V Io=4mA Vcc=3.0V Io=100A Vcc=3.6V VI=Vcc or GND Io=0 Vcc=3.6V VI=Vcc or GND 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 LIMITS -400C to +850C MIN TYP MAX 0.3 0.4 0.5 1.5 2.0 0.8 1.1 28 34 43 28 2.2 2.4 2.8 35 2.7 43 UNIT V V V ohm ohm V
VOL
0.3
IQ Isup IFS ILS ILeak IOFF
330
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-.
SYSTEM ARCHITECTURE AND REFERENCE DESIGN
19
AC ELECTRICAL CHARACTERISTICS GND=0V, tR = tF =3.0 ns; CL =50 pF; RL=500 Ohms SYMBOL tpLH tpHL trise tfall tRFM PARAMETER 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 D+/D- to RCV D+/D- to VP/VM WAVEFORM 1 2 LIMITS (TAMB)
0 C to +25 C
0 0
0 C to +70 C
0
0
UNIT ns ns %
MIN 0 0 4 4 90
TYP
9 9
MAX 12 12 20 20 110
MIN 0 0 4 4 90
MAX 14 14 20 20 110
tpLH tpHL trise tfall tRFM
1 2 75 75 70
120 120
300 300 300 200 130
75 75 70
300 300 300 200 130
ns ns %
tpLH tpHL tpLH tpHL tpHZ tpZH tpLZ tpZL tsu Vcr
3 1
9 9 4 4
OE# to D+/D- RL = 500ohm Setup for SPEED Crossover point1
4
16 16 8 8 12 12 10 10 2.0 1.3
16 16 8 8 12 12 10 10 2.0
ns ns ns
5 3
0 1.3
ns 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.
SYSTEM ARCHITECTURE AND REFERENCE DESIGN
20
SYSTEM ARCHITECTURE AND REFERENCE DESIGN
21
5.8. ESD Test Results
Test Description: ESD Testing was performed on a Zapmaster system using the HumanBody-Model (HBM) and Machine-Model (MM), according to MIL-STD 883 and EIAJ IC121 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 ESD Data Model HBM MM Mode Vdd, Vss, I/C Vdd, Vss, I/C S/S 15 15 Target 6000V 200V Results PASS PASS
ELECTRICAL CHARACTERISTICS
22
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.
Test Circuit: Positive Input/Output Overvoltage/Overcurrent
ELECTRICAL CHARACTERISTICS
23
Test Circuit: Negative Input/Output Overvoltage/Overcurrent
Supply Overvoltage Test
Latch-Up Data Mode Voltage Current Vdd - Vxx + + -
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
ELECTRICAL CHARACTERISTICS
25
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.
MECHANICAL INFORMATION
25
A A1 A2 b b1 c c1 D E E1 e L L1 R1
SYMBOL
COMMON DIMENSION MILLIMETERS MIN. 0.05 1.65 0.22 0.22 0.09 0.09 9.9 7.40 5.00 0.55 0.09 00 NOM. MAX. 2.00 1.85 0.38 0.33 0.25 0.21 10.5 8.20 5.60 0.95
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 NOM. MAX. 0.079 0.073 0.015 0.013 0.010 0.008 0.413 0.323 0.220 0.037
1.75 0.30 0.15 10.2 7.80 5.30 0.65 BSC 0.75 0.25 REF. 40
0.069 0.012 0.006 0.402 0.307 0.209 0.0256 BSC 0.030 0.050 REF. 40
80
80
MECHANICAL INFORMATION
26
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.
MECHANICAL INFORMATION
27
A A1 A2 b b1 c D E E1 e L L1 R1
SYMBOL
COMMON DIMENSION MILLIMETERS MIN. 1.35 0.10 0.20 0.20 0.18 9.8 5.79 3.81 0.41 0.20 00 NOM. 1.63 0.15 MAX. 1.75 0.25 1.50 0.30 0.27 0.25 10.01 6.20 3.99 1.27
COMMON DIMENSION INCH MIN. 0.053 0.004 0.008 0.008 0.007 0.386 0.0228 0.150 0.016 0.008 00 NOM. 0.064 0.006 MAX. 0.069 0.010 0.059 0.012 0.011 0.010 0.394 0.244 0.157 0.050
0.25 9.91 5.99 3.91 0.635 BSC 0.635 0.838 REF.
0.010 0.390 0.236 0.154 0.025 BSC 0.025 0.033 REF.
80
80
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