AU9254 R2 USB Hub Controller Technical Reference Manual

AU9254 R2
USB Hub Controller
Technical Reference Manual
Revision 1.0
© 2000-2002 Alcor Micro Corp.
All Rights Reserved
Copyright Notice
Copyright 2000 - 2002
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
TABLE OF CONTENTS
i
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TABLE OF CONTENTS
i
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.
Available in 28-pin SSOP.
INTRODUCTION
1
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INTRODUCTION
2
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.
USB HOST SYSTEM
PRINTER
SCANNER
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 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.
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
USB HUB
CONTROLLER
28 - PIN SSOP
PIN ASSIGNMENT
5
Table 3-1. Pin Descriptions for the 28-pin SSOP
Pin #
Pin Name
I/O
Description
1
USB_DM
I/O
USB D- for downstream port 2; add 15KΩ pull-down
to ground.
2
USB2_DP
I/O
USB D+ for downstream port 2; add 15KΩ pull-down
to ground.
3
USB3_DM
I/O
USB D- for downstream port 3; add 15KΩ pull-down
to ground.
4
USB3_DP
I/O
USB D+ for downstream port 3; add 15KΩ pull-down
to ground.
5
USB4_DM
I/O
USB D- for downstream port 4; add 15KΩ pull-down
to ground.
6
USB4_DP
I/O
USB D+ for downstream port 4; add 15KΩ pull-down
to ground.
7
DP4_PWRUP
O
Downstream port 4 power switch control. Active low.
8
DP2_PWRUP
O
Downstream port 2 power switch control. Active low.
9
BUS_PWRED
I
Bus power. Low indicates bus-powered.
10
VCC5O/VCC5I
K
PWR
+5 V power supply.
11
GND5O/GND5I
K
PWR
Ground.
12
VCC3V
PWR
3.3V output for upstream D+ pull-up.
13
DP1_PWRUP
O
Downstream port 1 power switch control. Active low.
14
GANGPOWER
I
Ganged or individual port power selection. Add a
10k pull down for ganged power. a 10k pull up for
individual power.
PIN ASSIGNMENT
6
Table 3-1 (continued). Pin Description for the 28-pin SSOP
Pin #
Pin Name
I/O
Description
15
DP1_OVRCUR
I
Downstream port 1 over-current indicator. Active low.
16
SUSPEND
O
Device is in suspended state: Active high.
17
DP2_OVRCUR
I
Downstream port 2 over-current indicator. Active low.
18
NC
19
AGND/GNDO
20
XTAL_1
I
Crystal in.
21
XTAL_2
O
Crystal out.
22
DP3_PWRUP
O
Downstream port 3 power switch control. Active low.
23
DP4_OVRCUR
I
Downstream port 4 over-current indicator. Active low.
24
DP3_OVRCUR
I
Downstream port 3 over-current indicator. Active low.
25
USB_DM
I/O
USB D- for upstream.
26
USB_DP
I/O
USB D+ for upstream port. Need external 1.5KΩ pullup to 3.3V.
27
USB1_DM
I/O
USB D- for downstream port 1; add 15KΩ pull-down to
ground.
28
USB1_DP
I/O
USB D+ for downstream port 1; add 15KΩ pull-down to
ground.
PWR
+5 V power supply.
PIN ASSIGNMENT
7
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PIN ASSIGNMENT
8
4.0 System Architecture and
Reference Design
4.1. 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
.....
XCVR
12 MHz
PORT 1
PORT
CONTROL
XCVR
.....
PORT 4
SYSTEM ARCHITECTURE AND REFERENCE DESIGN
9
4.2 Sample Schematics
R1
1.5K
VCC
C1
U1
39
39
39
39
39
39
R2
R4
R6
R8
R10
R11
DM2
DP2
DM3
DP3
DM4
DP4
VCC
C3
R12 1K
C4
VCC3
10UF
0.1UF
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
CON1
VCC3
1
2
3
4
5
6
C2
0.1UF 1UF
R7
R9
DP1
39DM1
PW
DATADATA+
GND
FGND1
FGND2
USB-B
39
XTAL2
XTAL1
SUSPEND
R13
AU9254A21
10k
VCC
VCC
VCC
F1
VCC
F2
MINSMDC110
MINSMDC110
USB_VCC1
VCC
F3
F4
MINSMDC110
USB_VCC2
MINSMDC110
USB_VCC3
USB_VCC4
C6
C7
C8
C9
150UF
150UF
150UF
150UF
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
Rev
A
ALCOR MICRO AU9254 DEMO BOARD
Wednesday , December 20, 2000 Sheet
1
of
2
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_VCC2
DM1
USB_GND2
USB_GND1
DP1
1
SUSPEND
1
10K
1N9012
15K 15K 15K 15K
PWR-2USB
2
Q1
DP2
1N9012
3
3
10K
Q2
2
R20
R19
DP2
DP1
DM2
DM1
USB_VCC2
USB_VCC1
DM2
R25 R26 R27 R28
R17 680
R18 680
SUSPEND
DM1
DP1
DM2
DP2
Up
D1
LED
D2
LED
Down
USB_VCC1
CON3
USB_VCC4
USB_GND4
USB_GND3
DM3
DP4
DP3
D4
LED
1
SUSPEND
1
10K
1N9012
3
10K
Q4
DP4
PWR-2USB
2
Q3
R24
DM4
1N9012
3
SUSPEND
R23
DP3
DM4
DM3
USB_VCC4
USB_VCC3
R29 R30 R31 R32
15K 15K 15K 15K
R22 680
2
R21 680
DM3
DP3
DM4
DP4
Up
D3
LED
Down
USB_VCC3
Title
Size
A
Date:
ALCOR MICRO AU9254A21 USB 4 PORT HUB Reference Design
Document Number
Rev
A
ALCOR MICRO AU9254 DEMO BOARD
Wednesday, December 20, 2000 Sheet
2
of
2
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
11
VCC_UP
F1 FB
U1
DM2
DP2
DM3
DP3
DM4
DP4
VCC
39
39
39
39
39
39
R1
R3
R5
R8
R10
R11
1
2
3
4
5
6
7
8
9
1K 10
11
12
13
14
DP4_PWR
DP2_PWR
R12
C4
0.1UF
C5
0.1UF
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
39
39
28 R2
27 R4
26
25
24
23
22
21
20
19
18
17
16
15
R6
R9
DP1
39DM1
39
R7
DP3_OVRCUR
DP4_OVRCUR
DP3_PWR
XTAL2
XTAL1
VCC3
C3
1.5K
C1 C2
CON1
1
2
3
4
5
6
47P 47P
PW
DATADATA+
GND
FGND1
FGND2
USB-B
1UF
DP2_OVRCUR
SUSPEND
DP1_OVRCUR
R13
AU9254A21
10k
VCC_UP
D1 1N4001 K1
C7
10UF
D P1_PW R
C8
0.1UF
VCC
D2
RELAY SPDT
C9
J1
R14 33 XTAL2
VCC3
1N4148
39PF
C10
U2
1
2
C13
IN
OUT
ADJ
R17 1K
4
5
R18
56K
C11
C12
D5
LED
100UF 0.1UF
1M
USB_VCC1
USB_VCC2
D4
LED
D3
LED
Y1
12MHZ
R16 33 XTAL1
39PF
3
Power Jack
EN
G
1
3
2
R15
10UF
R20 680
1
USB_VCC4
D7
LED
D8
LED
SUSPEND
1
1N9012
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.
Q4
R29
1N9012
Q5
1
10K
1N9012
10K
1N9012
Q1
R26 680
SUSPEND
1
10K
3
10K
R28
2
Q3
3
SUSPEND
R27
R25 680
2
R24 680
1
2
D6
LED
R22
3
USB_VCC3
SUSPEND
1N9012
3
VCC_UP
Q2
3
10K
R19 680
2
SUSPEND
R23
2
R21
18K
Title
Alcor Micro Au9254A21 USB 4 Port Hub Reference Design
Size
A4
Date:
Document Number
Rev
A
Au9254A21 USB Hub Buspower and Selfpower Changed
Thursday, September 13, 2001
Sheet
SYSTEM ARCHITECTURE AND REFERENCE DESIGN
1
of
2
12
CON2
DM1
VCC
DP1
U3
C16
0.1UF
R30
1K
DP1_PWR
USB_VCC1
USB_VCC3
DP3_PWR
R31
1K
1
2
3
4
5
6
7
8
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
DM2
C14
DP2
47P
C15
47P
VCC
DATADATA+
GND
FGND1
FGND2
USB-A
USB_VCC4
DP4_PWR
0.1UF
R32
R33
1K
1K
R34 R35 R36 R37
15K 15K 15K 15K
CON3
USB_VCC2
DM2
DP2
0.1UF C19
C21 0.1UF
1
2
3
4
5
6
C17
2527 or compatible
C18 0.1UF
DM1
DP1
DM2
DP2
VCC
USB_VCC1
DM1
DP1
0.1UF
C20
C22
C23
47P
47P
1
2
3
4
5
6
VCC
DATADATA+
GND
FGND1
FGND2
D P1_O VR C U R
D P3_O VR C U R
D P4_O VR C U R
D P2_O VR C U R
USB-A
CON4
DM3
DP3
DM3
DP3
DM4
DP4
USB_VCC3
DM3
DP3
DM4
C24
C25
47P
47P
1
2
3
4
5
6
USB-A
DP4
R38 R39 R40 R41
15K 15K 15K 15K
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.
VCC
DATADATA+
GND
FGND1
FGND2
CON5
USB_VCC4
DM4
DP4
C26
C27
47P
47P
1
2
3
4
5
6
VCC
DATADATA+
GND
FGND1
FGND2
USB-A
USB_VCC1
USB_VCC2
USB_VCC3
USB_VCC4
C28
C29
C30
C31
120UF
120UF
120UF
120UF
Title
Size
A4
Date:
Alcor Micro Au9254A21 USB 4 Port Hub Reference Design
Document Number
Au9254A21 USB Hub Buspower Selfpower Changed
Thursday, September 13, 2001
Sheet
2
SYSTEM ARCHITECTURE AND REFERENCE DESIGN
of
Rev
A
2
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
4
4
4
ELECTRICAL CHARACTERISTICS
UNITS
µA
µA
µA
ρF
ρF
ρF
15
5.4.
DC Electrical Characteristics for 5 volts operation
( 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
+ 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
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
PARAMETER
VCC
VI
VI/O
VO
TAMB
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
See DC and AC
characteristics for
individual device
LIMITS
MIN
MAX
3.0
3.6
0
5.5
0
VCC
0
VCC
0
70
UNIT
V
V
V
V
˚
C
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
PARAMETER
CONDITIONS
VCC
IIK
VI
VI/O
DC supply voltage
DC input diode current
DC input voltage
DC input voltage range for I/Os
Vi<0
Note 3
IOK
VO
DC output diode current
DC output voltage
Vo> Vcc or Vo<0
Note 3
IO
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
Vo=0 to Vcc
LIMITS
MIN
MAX
-0.5
+6.5
-50
-0.5
+5.5
-0.5
Vcc
+0.5
+/-50
-0.5
Vcc
+0.5
+/-15
Vo= 0 to Vcc
+/-50
mA
+/-100
+150
mA
C
mW
IO
ICC, IGND
TSTO
PTOT
-60
UNIT
V
mA
V
V
mA
V
mA
˚
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.
ELECTRICAL CHARACTERISTICS
18
DC ELECTRICAL CHARACTERISTICS
Over recommended operating conditions. Voltages are referenced to GND (Ground=0V).
SYMBOL
PARAMETER
VHYS
VIH
VIL
RoH
Hysteresis on inputs
HIGH level input
LOW level input
Output impedance (HIGH
state)
Output impedance (LOW
state)
HIGH level output
(Note 3)
RoL
VOH
VOL
LOW level output
(Note 3)
IQ
Quiescent supply current
Isup
Supply current in suspend
IFS
Active supply current (Full
Speed)
Active supply current (Low
Speed)
Imput leakage current
ILS
ILeak
IOFF
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
LIMITS
˚
˚
-40 C to +85 C
MIN
TYP MAX
0.3
0.4
0.5
1.5
2.0
0.8
1.1
28
34
43
V
V
V
ohm
Note 2
28
35
ohm
Vcc=3.0V Io=6mA
Vcc=3.0V Io=4mA
Vcc=3.0V Io=100µA
Vcc=3.0V Io=6mA
Vcc=3.0V Io=4mA
Vcc=3.0V Io=100µA
Vcc=3.6V VI=Vcc or GND
Io=0
Vcc=3.6V VI=Vcc or GND
Io=0
Vcc=3.3V
2.2
2.4
2.8
2.7
TEST CONDITIONS
3-state output OFF-state
current
0.3
330
9
Vcc=3.3V
2
Vcc=3.6V VI=5.5V or
GND, not for I/O Pins
Vi=Vih or ViL; Vo=Vcc or
GND
+/0.1
43
UNIT
V
0.7
0.4
0.2
600
V
70
µA
14
mA
µA
mA
+/0.5
+/-10
µA
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-.
SYSTEM ARCHITECTURE AND REFERENCE DESIGN
19
AC ELECTRICAL CHARACTERISTICS
GND=0V, tR = tF =3.0 ns; CL =50 pF; RL=500 Ohms
SYMBOL
PARAMETER
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
D+/D- to RCV
3
D+/D- to VP/VM
1
OE# to D+/D- RL =
500ohm
4
Setup for SPEED
Crossover point1
5
3
tpLH
tpHL
trise
tfall
tRFM
tpLH
tpHL
tpLH
tpHL
tpHZ
tpZH
tpLZ
tpZL
tsu
Vcr
WAVEFORM
1
2
LIMITS (TAMB)
˚
˚
˚
˚
0 C to +25 C
0 C to +70 C
MIN
TYP MAX MIN
MAX
0
12
0
14
0
12
0
14
4
9
20
4
20
4
9
20
4
20
90
110
90
110
1
2
120
120
75
75
70
9
9
4
4
0
1.3
300
300
300
200
130
75
75
70
16
16
8
8
12
12
10
10
2.0
300
300
300
200
130
16
16
8
8
12
12
10
10
1.3
2.0
UNIT
ns
ns
%
ns
ns
%
ns
ns
ns
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
24
6.0 Mechanical Information
Following diagrams show the dimensions of the AU9254 28-pin SSOP. Measurements are
in inches. Dimensions do not include mold flash and dambar protrusion; allowable mold
flash is 0.010 inch.
MECHANICAL INFORMATION
25
REV.
ORIG.
DESCRIPTION
1. REGENERATED FROM PO-P402 VERSION"A"
BY
JIMMY
DATE
97.04.21
STEVEN
IRIS
97.07.31
97.08.21
IRIS
98.06.10
2. ADD GAUGE PLANE
c
d
e
ADD CROSS SECTIONA-A" DRAWING
MODIFY 0.020 TO 0.002
ADD E-PIN
CHANGE PIN "I" DOT DIMENSION
SYMBOL
COMMON DIMENSION
COMMON DIMENSION
MILLIMETERS
INCH
MIN.
A
A1
A2
b
b1
c
c1
E
E1
e
L
L1
R1
θ
N
0 ± 0.30
JEDEC NO.
0.05
1.65
0.22
0.22
0.09
0.09
7.40
5.00
0.55
0.09
00
14
6.20
MO-150
AB
NOM.
MAX.
2.00
1.75
1.85
0.38
0.33
0.25
0.21
8.20
5.60
0.002
0.065
0.009
0.009
0.004
0.004
0.291
0.197
0.95
0.021
80
0.004
00
0.30
0.15
7.80
5.30
0.65 BSC
0.75
0.25 REF.
40
16
6.20
MO-150
AC
18
7.20
MO-150
AD
MIN.
20
7.20
MO-150
AE
NOM.
MAX.
0.079
0.069
0.073
0.015
0.013
0.010
0.008
0.323
0.220
0.012
0.006
0.307
0.209
0.0256 BSC
0.030
0.050 REF.
40
24
8.20
MO-150
AG
0.037
80
28
10.20
MO-150
AH
MECHANICAL INFORMATION
26
UNLESS
OTHERWISE
SPECIFIED
DRAWN
CHECKED
APPROVED
DECMAL
X
XX
.10
XXX
.05
IRIS 98.06.10
ANGULAR
30
UNIT
MM
SCALE : 10:1
ORENT SEMCONOUCTOR ELECTRONICS
SHEET:1 OF1
TITLE
SSOP 14/16/20/21/28L ( 209 MIL )
PACKAGE OUTLINE
FILE: PD-P503C
DWG. NO. :
PD-P503C
MECHANICAL INFORMATION
A3
27