Preliminary W81181D/AD

- 2 -

W81181D Data Sheet Revision History

Pages

Dates

Version Version

on Web

Main Contents

N.A.

10/01/98

0.50

N.A.

First published.

3/15/99

0.60

Add pin configuration and pin description

3/30/99

0.61

Modify pin configuration & pin description

5/4/99

0.62

Modify reference schematic

5/13/99

0.63

Modify pin 12 description

5/26/1999

0.64

Modify feature HUB spec Rev 1.1

7/09/1999

0.65

Add 48 MHz clock input pinout

7/12/1999

0.66

Modify 48 MHz (W81181AD) Schematic

Please note that all data and specifications are subject to change without notice. All the trade
marks of products and companies mentioned in this data sheet belong to their respective
owners.

LIFE SUPPORT APPLICATIONS

These products are not designed for use in life support appliances, devices, or systems where
malfunction of these products can reasonably be expected to result in personal injury.
Winbond customers using or selling these products for use in such applications do so at their
own risk and agree to fully indemnify Winbond for any damages resulting from such
improper use or sales.

Preliminary W81181D/AD

Publication Release Date: October 1999

- 3 - Revision A1

Table of Contents-

1. GENERAL DESCRIPTION....................................................................................................................... 4

2. FEATURES................................................................................................................................................ 4

3. USB BLOCK DIAGRAM .......................................................................................................................... 5

4. PIN CONFIGURATION............................................................................................................................. 6

W81181D (12 MH

LOCK

NPUT

) ............................................................................................................. 6

W81181AD (48 MH

LOCK

NPUT

)........................................................................................................... 7

5. PIN DESCRIPTION................................................................................................................................... 8

W81181D:................................................................................................................................................... 8

W81181AD: .............................................................................................................................................. 10

IO TYPE: ..................................................................................................................................................12

6. ABSOLUTE MAXIMUM RATINGS........................................................................................................12

7. ELECTRICAL CHARACTERISTICS.....................................................................................................13

8. TYPICAL APPLICATION .......................................................................................................................15

W81181D:................................................................................................................................................. 15

W81181AD: .............................................................................................................................................. 16

10. PACKAGE DIMENSIONS....................................................................................................................18

Preliminary W81181D/AD

- 4 -

1. GENERAL DESCRIPTION

W81181D, an high integrated 4 port USB hub controller which integrates a microcontroller,
implements a medium speed (12 MHz) and slow speed (1.5 MHz) Universal Serial Bus (USB) hub
control interface. It supports one upstream, four downstream ports and a serial interface. W81181D
can be act as multifunction USB device. For example, the whole system can be designed as an USB
HUB plus an USB mouse or an USB HUB plus an IR receiver, and no down stream port be occupied
as well as no other component needed.

W81181D acts as an USB hub controller and a hub repeater at the direction of an internal
microcontroller. W81181D controls the traffic among the host, four downstream ports, and the
microprocessor. As a hub controller, it can enable/disable ports, send and receive resets, and detect
devices of high or low speeds. The W81181D contains three function endpoints and two hub
endpoints to allow both USB Control and Interrupt Transfers between the host and microcontroller.

W81181D is a compound USB device (hub with embedded function attached) with totally five
downstream ports. W81181D can be used as a hub controller in a standalone hub with attached
function or a microcontroller based USB device with hub function.

Ordering Information

PART NO.

INPUT CLOCK Freq.

PACKAGE

W81181D

12 MHz

48-LQFP

W81181AD

48 MHz

48-LQFP

2. FEATURES

�

Full compliance with USB spec Rev 1.1 and HID Class Definition Rev 1.0

�

Compliance with USB Hub spec Rev 1.1

�

Support multiple endpoints for standalone hub with attached function

�

Embedded microprocessor--8052 ( 6K ROM + 256 Byte RAM)

�

Support auto-detected two power source mode between bus power mode and self power mode.

�

12-MHz crystal/oscillator input to lower EMI (W81181D)

�

48-Mhz oscillator input for motherboard application (W81181AD)

�

Support Suspend and Resume operation

�

Four downstream ports with per port overcurrent protection

�

Two endpoints for hub (Control and Interrupt)

�

LED display supports bright/blinking alternative for port enable and OCP(over current protection)
flags

�

Single 5V supplied with embedded 5V-3.3V regulator

�

Three endpoints for attached device (one Control and two Interrupt)

�

Provides the external pull-up resistor control for the up-stream connection.

�

Perport/Global downstream port power control optional

�

Packaged in 48-pin LQFP

�

5V CMOS device

Preliminary W81181D/AD

Publication Release Date: October 1999

- 5 - Revision A1

3. USB BLOCK DIAGRAM

The Serial Interface Engine (SIE) controls the USB data flow between the uCs and the USB bus. Port0
is a high speed (HS) transceiver for the upstream data path. The Hub Repeater is the traffic controller
which directs the bus data to and from the correct paths. The hub Controller and Function Controller
determines what data is to be written to or read from the various FIFOs. The Bus Controller directs the
interface between the uC and Hub/Function Controller.

UPSTREAM PORT

TRANCEIVER

PORT 0

SERIAL

INTERFACE

ENGINE

FUNCTION

CONTROLLER

HUB

CONTROLLER

HUB

REPEATER

TRANCEIVER

PORT 1

TRANCEIVER

PORT 2

TRANCEIVER

PORT 3

TRANCEIVER

PORT 4

USB FIFOs

BUS

CONTROLLER

DOWNSTREAM DEVICES

Preliminary W81181D/AD

Publication Release Date: October 1999

- 7 - Revision A1

W81181AD (48 MHz Clock Input)

VDD3V

VDDA

GNDA

VBUS

LEDOC4_

LEDOC3_

LEDOC2_

LEDOC1_

VDD

RESET

P3[3]/INT1_

P1[0]/SACK/INDIV

P1[1]/SSTB

LEDEN5_

LEDEN4_

OCP4_

EXTPUEN

VDD

48CLKIN

GND

LEDEN1_

48CLKEN_

LEDEN2_

LEDEN3_

PWEN4_

OCP3_

PWEN3_

LEDEN0_

OCP2_

PWEN2_

GND

OCP1_

PWEN1_

FWKP5

P1[2]/FSUSP5/BUSPWR

GND3V

DP4

DM4

DP3

DM3

GND3V

DP2

DM2

DP1

DM1

DP0

DM0

GND3V

W81181AD

Preliminary W81181D/AD

- 8 -

5. PIN DESCRIPTION

W81181D

PIN

NUMBER

PAD

NAME

I/O TYPE

PIN FUNCTION

PULL UP/

DOWN

VDD3V

Power1

3.3V Regulator output. Supply voltage for all
transceivers.

VDDA

Power1

Analog power.

GNDA

Power0

Analog ground.

VBUS

IUD2T

Input of upstream power status. On self-power mode,
connection should be controlled by VBUS status.

LEDOC4_

IOU2P

Flag of port4 over-current. To drive LED directly

LEDOC3_

IOU2P

Flag of port3 over-current. To drive LED directly

LEDOC2_

IOU2P

Flag of port2 over-current. To drive LED directly

LEDOC1_

IOU2P

Flag of port1 over-current. To drive LED directly

VDD

Power1

Digital supply voltage.

RESET

IUD2T

Master reset input. Active high.

P3[3]/

INT1_

IOUD2

Normally, this pin is P33/INT1_ and used as bi-
directional serial data (SDATA) for embedded function
serial port.

P1[0]/

SACK/

INDIV

IOUD2

Normally, this pin is P10 and used as bi-directional
serial data ACK (SACK) for embedded function serial
port. If no embedded function this pin is INDIVIDUAL
(default) or GANGED mode setting for downstream
power control.

P1[1]/

SSTB

IOUD2

Normally, this pin is P11 and used as bi-directional
serial data Strobe (SSTB) for embedded function
serial port.

LEDEN5_

IOU2P

Downstream port5 LED. Active low to drive
bright/blinking LED when port5 enable.

LEDEN4_

IOU2P

Downstream port4 LED. Active low to drive
bright/blinking LED when port4 enable.

LEDEN3_

IOU2P

Downstream port3 LED. Active low to drive
bright/blinking LED when port3 enable.

LEDEN2_

IOU2P

Downstream port2 LED. Active low to drive
bright/blinking LED when port2 enable.

LEDEN1_

IOU2P

Downstream port1 LED. Active low to drive
bright/blinking LED when port1 enable.

GND

Power0

Digital ground

XTAL1

OSCM

Crystal IN. For 12 MHz oscillation.

Preliminary W81181D/AD

Publication Release Date: October 1999

- 9 - Revision A1

Pin Description ( W81181D ), continued

PIN

NUMBER

PAD NAME

I/O

TYPE

PIN FUNCTION

PULL UP/

DOWN

XTAL2

OSCM

Crystal OUT. For 12 MHz oscillation.

VDD

Power1 Digital supply voltage.

EXTPUEN

External pull-up connection control.

OCP4_

IUD2T

Downstream port4 over-current status. Active low.

PWEN4_

Downstream port4 power control. Active low.

OCP3_

IUD2T

Downstream port3 over-current status. Active low.

PWEN3_

Downstream port3 power control. Active low.

LEDEN0_

IOU2P

Upstream port0 LED. Active low to drive
bright/blinking LED when upstream port0 enable.

OCP2_

IUD2T

Downstream port2 over-current status. Active low.

PWEN2_

Downstream port2 power control. Active low.

GND

Power0 Digital ground.

OCP1_

IUD2T

Downstream port1 over-current LED. Active low.

PWEN1_

Downstream port1 power control. Active low.

FWKP5

IUD2

Embedded function wake-up input.

P1[2]/

FSUSP5/

PWRDET

IOUD2

Normally, this pin is a P12 and used as embedded
function suspend control. If no embedded function
this pin is self-powered (High) or bus-powered
(Low) hub setting.

GND3V

Power0 Ground of port3 and port4 transceivers.

DP4

AIO

USB D+ for downstream port4.

DM4

AIO

USB D- for downstream port4.

DP3

AIO

USB D+ for downstream port3.

DM3

AIO

USB D- for downstream port3.

GND3V

Power0 Ground of port1 and port2 transceivers.

DP2

AIO

USB D+ for downstream port2.

DM2

AIO

USB D- for downstream port2.

DP1

AIO

USB D+ for downstream port1.

DM1

AIO

USB D- for downstream port1.

GND3V

Power0 Ground of port0 transceivers.

DP0

AIO

USB D+ for upstream port0.

DM0

AIO

USB D- for upstream port0.

Preliminary W81181D/AD

- 10 -

W81181AD

PIN

NUMBER

PAD NAME

I/O

TYPE

PIN FUNCTION

PULL UP/

DOWN

Power1 3.3V Regulator output. Supply voltage for all

transceivers.

Power1 Analog power.

GNDA

Power0 Analog ground.

VBUS

IUD2T

Input of upstream power status. On self-power
mode, connection should be controlled by VBUS
status.

LEDOC4_

IOU2P

Flag of port4 over-current. To drive LED directly

LEDOC3_

IOU2P

Flag of port3 over-current. To drive LED directly

LEDOC2_

IOU2P

Flag of port2 over-current. To drive LED directly

LEDOC1_

IOU2P

Flag of port1 over-current. To drive LED directly

Power1 Digital supply voltage.

RESET

IUD2T

Master reset input. Active high.

P3[3]/

INT1_

IOUD2

Normally, this pin is P33/INT1_ and used as bi-
directional serial data (SDATA) for embedded
function serial port.

P1[0]/

SACK/

INDIV

IOUD2

Normally, this pin is P10 and used as bi-directional
serial data ACK (SACK) for embedded function
serial port. If no embedded function this pin is
INDIVIDUAL (default) or GANGED mode setting for
downstream power control.

P1[1]/

SSTB

IOUD2

Normally, this pin is P11 and used as bi-directional
serial data Strobe (SSTB) for embedded function
serial port.

LEDEN5_

IOU2P

Downstream port5 LED. Active low to drive
bright/blinking LED when port5 enable.

LEDEN4_

IOU2P

Downstream port4 LED. Active low to drive
bright/blinking LED when port4 enable.

LEDEN3_

IOU2P

Downstream port3 LED. Active low to drive
bright/blinking LED when port3 enable.

LEDEN2_

IOU2P

Downstream port2 LED. Active low to drive
bright/blinking LED when port2 enable.

48CLKEN_

IUD2

High enable embedded DPLL (12 MHz to 48 MHz).
It should be kept to Low when using 48Mhz clock.

LEDEN1_

IOU2P

Downstream port1 LED. Active low to drive
bright/blinking LED when port1 enable.

GND

Power0 Digital ground

Preliminary W81181D/AD

Publication Release Date: October 1999

- 11 - Revision A1

Pin Description ( W81181AD ), continued

PIN

NUMBER

PAD NAME

I/O

TYPE

PIN FUNCTION

PULL UP/

DOWN

48CLKIN

OSCM

Clock input for 48 MHz oscillation.

Power1 Digital supply voltage.

EXTPUEN

External pull-up connection control.

OCP4_

IUD2T

Downstream port4 over-current status. Active low.

PWEN4_

Downstream port4 power control. Active low.

OCP3_

IUD2T

Downstream port3 over-current status. Active low.

PWEN3_

Downstream port3 power control. Active low.

LEDEN0_

IOU2P

Upstream port0 LED. Active low to drive
bright/blinking LED when upstream port0 enable.

OCP2_

IUD2T

Downstream port2 over-current status. Active low.

PWEN2_

Downstream port2 power control. Active low.

GND

Power0 Digital ground.

OCP1_

IUD2T

Downstream port1 over-current LED. Active low.

PWEN1_

Downstream port1 power control. Active low.

FWKP5

IUD2

Embedded function wake-up input.

P1[2]/

FSUSP5/

PWRDET

IOUD2

Normally, this pin is a P12 and used as embedded
function suspend control. If no embedded function
this pin is self-powered (High) or bus-powered
(Low) hub setting.

GND3V

Power0 Ground of port3 and port4 transceivers.

DP4

AIO

USB D+ for downstream port4.

DM4

AIO

USB D- for downstream port4.

DP3

AIO

USB D+ for downstream port3.

DM3

AIO

USB D- for downstream port3.

GND3V

Power0 Ground of port1 and port2 transceivers.

DP2

AIO

USB D+ for downstream port2.

DM2

AIO

USB D- for downstream port2.

DP1

AIO

USB D+ for downstream port1.

DM1

AIO

USB D- for downstream port1.

GND3V

Power0 Ground of port0 transceivers.

DP0

AIO

USB D+ for upstream port0.

DM0

AIO

USB D- for upstream port0.

Preliminary W81181D/AD

- 12 -

IO TYPE

DESCRIPTION

Power1

Power

Power0

Ground

OSCM

Middle-freq. Oscillating IO

IUD2

Input with pull-up/pull-down control

IUD2T

Schmitt Input with pull-up/pull-down control

IOU2P

Bi-directional high driving IO with programmable pull-up control and serial resistor

IOUD2

Bi-directional IO with pull-up/pull-down control

Output

AIO

Analog Transceiver IO

Pull Up/Down Control

NOTE

DESCRIPTION

Output pin without pull-up/down

Input pin or I/O pin with pull-down

Input pin or I/O pin with pull-up

Input pin or I/O pin without pull-up/down

6. ABSOLUTE MAXIMUM RATINGS

PARAMETER

LIMIT

Supply Voltage (Vcc to Vss)

5.5V

Analog Input Voltage

Vss -0.5V to Vcc +0.5V

Digital Input Voltage

Vss -0.5V to Vcc +0.5V

Power Dissipation

TBD

Ambient Operating Temperature

C to 70

Lead Temperature (Soldering, 10 sec)

250

Note: Exposure to conditions beyond those listed under Absolute Maximum Ratings may adversely affect the life and reliability
of the device.

Preliminary W81181D/AD

Publication Release Date: October 1999

- 13 - Revision A1

7. ELECTRICAL CHARACTERISTICS

Operating Conditions

= 5V +/-5%, T

= 0

to 70

PARAMETER

SYM.

CONDITIONS

MIN. MAX.

UNIT

Supply Current

TBD

Logic Output High

Io > 24 mA

2.5

Logic Output Low

Io > 6 mA

0.4

Logic Input Leakage Current

= 70

USB CHARACTERISTICS

Note 8

Leakage Current:

Hi-Z State Output Leakage

V< V

< 3.3V

-10

+10

Input Levels:

Differential Input Sensitivity

|(D+)-(D-)|

0.2

Single Ended Signal "0"

SE0

0.8

2.0

Differential Common Mode Range

Includes VDI range

0.8

2.5

Output Levels:

Driver Output Low

OLU

of 1.5 K

to 3.6V

0.3

Driver Output High

OHU

of 15 K

to GND

2.8

3.6

Output Signal Crossover Voltage

CRS

1.3

2.0

Capacitance:

Transceiver Capacitance

Pin to GND

Full Speed Timings:

Output Rise/Fall Times

Notes 1, 4 (C

= 50 pF)

Source Differential Driver Jitter to Next
Transition
/to Paired Transition

DJ1

DJ2

Notes 2, 3

-3.5

/-4

3.5

Differential to EOP transition Skew

DEOP

Note 3

-2

Hub Differential Data Delay(without
cable)

HDD2

Notes 2, 3, 5

Hub Differential Driver Jitter to Next
Transition
/to Paired Transition (including cable)

HDJ1

HDJ2

Notes 2, 3, 5

-3

/-1

Data bit width distortion after SOP

SOP

Notes 3, 5

-5

Hub SE0 Delay Relative to t

HDD

EOPD

Notes 3, 5

Hub EOP Output Width Skew

HESK

Notes 3, 5

-15

Low Speed Timings:

Output Rise/Fall Times

Notes 1, 4 (C

= 50 pF)

300

Preliminary W81181D/AD

- 14 -

Electrical Characteristics, continued

PARAMETER

SYM. CONDITIONS MIN.

MAX. UNIT

Source Differential Driver Jitter to Next Transition

/to Paired Transition

DJ1

DJ2

Notes 2, 3

-25

/-14

/14

Differential to EOP transition Skew

DEOP

Notes 3

-40

100

Hub Differential Data Delay(without cable)

HDD2

Notes 2, 3, 5

300

Hub Differential Driver Jitter to Next Transition

/to Paired Transition (including cable)

HDJ1

HDJ2

Notes 2, 3, 5

-45

/-45

Data bit width distortion after SOP

SOP

Notes 3, 5

-60

Hub SE0 Delay Relative to t

HDD

EOPD

Notes 3, 5

200

Hub EOP Output Width Skew

HESK

Notes 3, 5

-300

300

Notes:

1. Measured from 10% to 90% of the data signal.

2. Timing difference between the differential signals.

3. Measured at crossover point of differential data signals.

4. The rising and falling edges should be smoothly transiting(monotonic)

5. Full Speed timing have a 1.5 k

pull-up to 2.8 V on the D+ (DP) data line.

6. Low Speed timing have a 1.5 k

pull-up to 2.8 V on the D- (DM) data line.

7. The maximum load specification is the maximum effective capacitive load allowed that meets the target hub VBUS droop of

330 mV.

8. All other USB Electrical Characteristics refer to USB spec Rev 1.1 7.3.2 and 7.3.3.

Preliminary W81181D/AD

Publication Release Date: October 1999

- 15 - Revision A1

8. TYPICAL APPLICATION

W81181D

W81181D Reference Schematic

2.1

Friday, July 09, 1999

Size

Document Number

Rev

Date:

Sheet

VCC

VDD3

VBUS

VCC

VBUS

VCC

VCC2

VCC

W81181D USB Hub Reference Schematic (Pure Hub)

Vendor ID / Product ID build in EEPROM

D-
D+

D1-
D1+
D2-

D1-
D1+

D-
D+

PW1

PW2

FL1

FL2

D2-
D2+

FL3

FL4

D3-
D3+

PWEN3

PW3

FL3
FL4

PWEN4

PW4

D4-
D4+

SCL
SDA

FL2
PWEN2

PWEN1

FL1

D3-

OCP3

LEDEN3

OCP4

LEDOC1

LEDEN2

RESET

LEDOC2

OCP1

SCL

LEDEN1

PWEN2

D2+

OCP4

PWEN3

LEDOC1

RESET

LEDEN1

PWRDET

D3+

EXTPUEN

LEDHUB

LEDOC2
LEDOC3

LEDEN4

D4-

PWEN4

OCP1

OCP2

LEDOC4

D4+

LEDEN2

SDA

LEDEN3

LEDOC3

LEDHUB

OCP2

PWEN1

LEDEN4

OCP3

LED

120u

0.1u

15K

120u

0.1u

15K

12MHz

WINBOND ELECTRONICS CORP.

inbond

10u

R13

R14

R15

15p

C10

15p

C11

15p

C12

15p

C13

15p

C14

15p

C15

15p

C16

15p

C17

15p

C18

15p

R21

R22

LED

24LC04B

VSS

SDA

SCL

VCC

C30

0.1u

C31

0.1u

C32

0.1u

C33

0.1u

USB3

USB(A)

2
3
4

C34

10u

C35

0.1u

C36

0.1u

R23

10K

R24

10K

R25

10K

R26

10K

R27

10K

R28

10K

R29

10K

R30

10K

C37

0.1u

C38

0.1u

C39

0.1u

C40

0.1u

R31

27K

C41

30p

C42

30p

R34

220

R35

220

R36

220

R37

220

R38

220

R39

220

R40

220

R41

220

R42

220

R43

3.3K

USB5

USB(A)

1
2
3

USB4

USB(A)

1
2
3
4

C29

0.1u

USB2

USB(A)

1
2
3
4

AIC1526-0

C/A

F/A

F/B

C/B

O/A

GND

O/B

AIC1526-0

C/A

F/A

F/B

C/B

O/A

GND

O/B

USB1

USB(B)

1
2
3
4

R33

7.5K

R17

R20

R18

R19

R16

R32

4.7K

W81181D-48LQFP

VDD

XTAL1

LEDEN2

LEDEN3

LEDEN4

LEDEN5

LEDOC1

DM1

DP1

DM2

DP2

DM3

DP3

DM4

DP4

PWEN1

PWEN2

PWEN3

PWEN4

OCP2

OCP3

OCP4

LEDOC3

LEDOC4

SACK/INDIV

PWRDET/FSUS5

GNDA

GND3V

LEDOC2

LEDEN0

SSTB/P11

LEDEN1

RESET

XTAL2

OCP1

INT1/P33

FWKP5

VDD

VDDA

VDD3V

GND3V

EXTPUEN

VBUS

DM0

DP0

GND

Preliminary W81181D/AD

- 16 -

W81181AD

W81181AD Reference Schematic

2.2

Monday, July 12, 1999

Size

Document Number

Rev

Date:

Sheet

VCC

VDD3

VCC

Vendor ID / Product ID build in EEPROM

W81181AD USB Hub Reference Schematic (48MHz for Mother Board)

D1-
D1+
D2-

D1-
D1+

PW1

PW2

FL1

FL2

D2-
D2+

FL3

FL4

D3-
D3+

PWEN3

PW3

FL3
FL4

PWEN4

PW4

D4-
D4+

SCL
SDA

FL2
PWEN2

PWEN1

FL1

D3-

OCP3

LEDEN3

OCP4

LEDOC1

LEDEN2

RESET

LEDOC2

OCP1

SCL

LEDEN1

PWEN2

D2+

OCP4

PWEN3

LEDOC1

RESET

LEDEN1

D3+

EXTPUEN

LEDHUB

LEDOC2
LEDOC3

LEDEN4

D4-

PWEN4

OCP1

OCP2

LEDOC4

D4+

LEDEN2

SDA

LEDEN3

LEDOC3

LEDHUB

OCP2

PWEN1

LEDEN4

OCP3

LED

120u

0.1u

15K

120u

0.1u

15K

WINBOND ELECTRONICS CORP.

inbond

10u

R13

R14

R15

15p

C10

15p

C11

15p

C12

15p

C13

15p

C14

15p

C15

15p

C16

15p

C17

15p

C18

15p

R21

R22

LED

24LC04B

VSS

SDA

SCL

VCC

C30

0.1u

C31

0.1u

C32

0.1u

USB3

USB(A)

2
3
4

C35

0.1u

C36

0.1u

R23

10K

R24

10K

R25

10K

R26

10K

R27

10K

R28

10K

R29

10K

R30

10K

C37

0.1u

C38

0.1u

C39

0.1u

C40

0.1u

R34

220

R35

220

R36

220

R37

220

R38

220

R39

220

R40

220

R41

220

R42

220

R43

3.3K

USB5

USB(A)

1
2
3

USB4

USB(A)

1
2
3
4

C29

0.1u

USB2

USB(A)

1
2
3
4

AIC1526-0

C/A

F/A

F/B

C/B

O/A

GND

O/B

AIC1526-0

C/A

F/A

F/B

C/B

O/A

GND

O/B

R33

7.5K

R17

R20

R18

R19

R16

R32

4.7K

W81181AD-48LQFP

VDD

48CLKIN

LEDEN2

LEDEN3

LEDEN4

LEDEN5

LEDOC1

DM1

DP1

DM2

DP2

DM3

DP3

DM4

DP4

PWEN1

PWEN2

PWEN3

PWEN4

OCP2

OCP3

OCP4

LEDOC3

LEDOC4

SACK/INDIV

PWRDET/FSUS5

GNDA

GND3V

LEDOC2

LEDEN0

SSTB/P11

LEDEN1

RESET

48CLKEN

OCP1

INT1/P33

FWKP5

VDD

VDDA

VDD3V

GND3V

EXTPUEN

VBUS

DM0

DP0

GND

48MHz In

ROOTHUB_D-

ROOTHUB_D+

Preliminary W81181D/AD

- 18 -

10. PACKAGE DIMENSIONS

48-pin QFP

Seating Plane

See Detail F

Detail F

1. Dimensions D & E do not include interlead

flash.

2. Dimension b does not include dambar

protrusion/intrusion.

3. Controlling dimension: Millimeters
4. General appearance spec. should be based

on final visual inspection spec.

Notes:

Symbol

Min.

Nom.

Max.

Nom.

Min.

Dimension in Inch

Dimension in mm

b
c
D

A
A

1.40

0.20

0.50

1.00

7.00

9.00

7.00

---

1.60

0.15

1.45

1.35

0.05

0.17

0.27

---

0.09

0.20

0.45

0.60

0.75

0.08

3.5

---

Headquarters

No. 4, Creation Rd. III,
Science-Based Industrial Park,
Hsinchu, Taiwan
TEL: 886-3-5770066
FAX: 886-3-5792646
http://www.winbond.com.tw/
Voice & Fax-on-demand: 886-2-27197006

Taipei Office

11F, No. 115, Sec. 3, Min-Sheng East Rd.,
Taipei, Taiwan
TEL: 886-2-27190505
FAX: 886-2-27197502

Winbond Electronics (H.K.) Ltd.

Rm. 803, World Trade Square, Tower II,
123 Hoi Bun Rd., Kwun Tong,
Kowloon, Hong Kong
TEL: 852-27513100
FAX: 852-27552064

Winbond Electronics North America Corp.
Winbond Memory Lab.
Winbond Microelectronics Corp.
Winbond Systems Lab.

2727 N. First Street, San Jose,
CA 95134, U.S.A.
TEL: 408-9436666
FAX: 408-5441798

Note: All data and specifications are subject to change without notice.

Please note that all data and specifications are subject to change without notice. All the trade marks of products

and companies mentioned in this data sheet belong to their respective owners.

Part Number W81181AD