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USB 2.0 4-Port Hub
Data Sheet Rev. 1.0

FE1.1SUSB 2.0 HIGH SPEED 4-PORT HUB CONTROLLER_______________________Data Sheet_______________________INTRODUCTION
The FE1.1s is a highly integrated, high quality,
high performance, low power consumption, yet
low cost solution for USB 2.0 High Speed 4-PortHub.
It adopts Single Transaction Translator (STT)architecture to be more cost effective. Six,
instead of two, non-periodic transaction buffers
are used to minimize potential traffic jamming.
The whole design is based on state-machinecontrol to reduce the response delay time; nomicro controller is used in this chip.
To guarantee high quality, the whole chip iscovered by Test Scan Chain – even on the highspeed (480MHz) modules, so that all the logic
components could be fully tested before shipping.
Special Build-In-Self-Test mode is designed toexercise all high, full, and low speed Analog
Front End (AFE) components on the packaging
and testing stages as well.

FEATURES

Low power consumption is achieved by using0.18μm technology and comprehensive
power/clock control mechanism. Most part of thechip will not be clocked unless needed.
NOV. 29, 2008

Fully compliant with Universal Serial Bus
Specification Revision 2.0 (USB 2.0);□ Upstream facing port supports HighSpeed (480MHz) and Full-Speed(12MHz) modes;□ 4 downstream facing ports support
High-Speed (480MHz), Full-Speed(12MHz), and Low-Speed (1.5MHz)
modes;
Integrated USB 2.0 Transceivers;
Integrated upstream 1.5KΩ pull-up,downstream 15KΩ pull-down, and serialresisters;
Integrated 5V to 3.3V and 1.8V regulator.
Integrated Power-On-Reset circuit;
Integrated 12MHz Oscillator with feedback
resister, and crystal load capacitance;
Integrated 12MHz-to-480MHz Phase LockLoop (PLL);
Single Transaction Translator (STT) –□ One TT for all downstream ports;□ The TT could handle 64 periodic StartSplit transactions, 32 periodic
Complete-Split transactions, and 6
none-periodic transactions;
Automatic self-power status monitoring;□ Automatic re-enumeration when Self-

Subject to Change Without Notice1USB 2.0 4-Port Hub
Data Sheet Rev. 1.0

Powered switching to Bus-Powered;Ganged Power Control and Global OverCurrent Detection support;
EEPROM configured options –□ Vendor ID, Product ID, & Device
Release Number; and□ Number of Downstream Ports;
Comprehensive Port Indicators support:□ Downstream Port Enabled indicator
LED (x4, Green);□ Hub Active/Suspend indicator LED.

NOV. 29, 2008

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USB 2.0 4-Port Hub
Data Sheet Rev. 1.0

BLOCK DIAGRAM
To Downstream
Devices

Downstream
PHY #1

Downstream
PHY #2

Downstream
PHY #3

To Upstream
Host/HubDownstream
PHY #4Upstream
PHYRouting SwitchUSB Multi-port Transceiver Macro Cell
12M HzCrystal

3.3V & 1.8V Regulator
OSC

Over Current
Detection
Power SwitchControl

POR

PLL(x40)

DataTransmit

Data
Recovery &Elastic
Buffer

SIE

Upstream
PortController

USB 2.0
HubControlle r

Downstream
PortControllers

Transaction Translator
Full/Low-Speed Handler

Transaction Translator
High-Speed Handler

Unified Transaction
Translator Buffer (2KB)

Hub Controller

EEPROM,
Hub Activity
LED

LED
Controller

PortIndicators

Fig. 1: Block Diagram

NOV. 29, 2008

Subject to Change Without Notice3USB 2.0 4-Port Hub
Data Sheet Rev. 1.0PACKAGE
28-pin SSOP
(Body Size: 10x4 mm, Pitch: 0.64 mm)

PIN ASSIGNMENTVSS

128

VD18

XOUT

227XIN

326TESTJ
OVCJ

DM4425PWRJ

DP4524

LED2DM3623

LED1DP3722DRV

DM2821

VD33_O

DP2920VDD5DM11019

BUSJ

DP11118

VBUSM

VD18_O

1217

XRSTJ

VD331316

DPU

REXT

1415

DMU

FE1.1sFig. 2: SSOP-28 Pin Assignment

NOV. 29, 2008

Subject to Change Without Notice4USB 2.0 4-Port Hub
Data Sheet Rev. 1.0

PIN DESCRIPTION TABLEPin Name

LQFP SSOP TypePin No. Pin No.

Function

VSS101PGround.

XOUT

112OSC

12 MHz Crystal Oscillator output

XIN

123OSC

12 MHz Crystal Oscillator input.

DM4144UTThe D- pin of the 4th Downstream Facing Port.

DP4155UTThe D+ pin of the 4th Downstream Facing Port.

DM3176UTThe D- pin of the 3rd Downstream Facing Port.

DP3187UTThe D+ pin of the 3rd Downstream Facing Port.

DM2208UTThe D- pin of the 2nd Downstream Facing Port.

DP2219UTThe D+ pin of the 2nd Downstream Facing Port.

DM12310UTThe D- pin of the 1st Downstream Facing Port.

DP12411UTThe D+ pin of the 1st Downstream Facing Port.

VD18_O

2612P

1.8V power output from 3.3V→1.8V integrated regulator – aNote

10μF decoupling capacitor is required.
VD33

2713REXT

2814P

3.3V power input for 3.3V→1.8V integrated regulator.
A 2.7KΩ (± 1%) resister should be connected to VSS toprovide internal bias reference.

DMU

3025UTThe D- pin of the Upstream Facing Port.

DPU

3116UTThe D+ pin of the Upstream Facing Port.

XRSTJ

3417I

External Reset, active low, is an optional source of chip reset
signal, beside the build-in Power-On-Reset. The minimum low
pulse width is 10 μs.

VBUSM

3518I

The VBUS Monitor of upstream facing port.

BUSJ

3619IBus power indicator:
0 – Bus Powered;

1 – Self Powered.

VDD53820P

5V power input for integrated 5V→3.3V regulator.

VD33_O3921P

3.3V power output from 5V→3.3V integrated regulator – a10μF decoupling capacitor is required.

TEST40―—ITest Mode Enable – should be tied to ground for normal
operation.

DRV42NOV. 29, 2008

22I/O

LED Drive Control

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15USB 2.0 4-Port Hub
Data Sheet Rev. 1.0

LED1/4323I/O

Port 1 and Port 3 Enabled Indicator (LED) Control, andEESCL

1external Serial EEPROM Clock.

LED24424I/O

Port 2 and Port 4 Enabled Indicator (LED) Control

1PWRJ

4725O

Downstream Device Power Enable, active low, for Ganged
Power Switching.

OVCJ

48

26I

Over Current Indicator, active low, for Global Over-Current
Protection.

TESTJ/227I/OTest Mode Enable, active low with internal pull-up, andEESDA
VD181external Serial EEPROM Data/Address.
928P

1.8V power input.

Type Abbreviation –I : Input; O : Output; I/O : Input/Output; P : Power/Ground; UT: USB Transceiver.

TESTJ
Green

LED1

FE1.1sPort 1 Indicator

SDA

A0SCL

A1

EEPROM

A2

Port 3 Indicator

GreenGreen

LED2

Port 2 Indicator
Port 4 Indicator

GreenRedDRV
Hub Active/Suspend Indicator

Fig. 3: LED and EEPROM Connections
Note 1 – LED Status Indicators and External Serial EEPROM Interface
The FE1.1s supports up to 5 LED for status indication with DRV, LED1, and LED2 pins, as shown byFig. 4. For each Downstream Facing Port, one LED (Green) is provided to indicate that the attacheddevice of the corresponding port is enabled or not. The fifth LED (Red) shows the Active (On) orSuspend (Off) status of the Hub itself. The FE1.1s can be configured by an external serial EEPROM
via LED1 and TESTJ pins. The EEPROM is checked and loaded each time after chip reset.
NOV. 29, 2008

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USB 2.0 4-Port HubData Sheet Rev. 1.0

EEPROM CONTENTS

Address

Contents

Note

0x00

0x40

Constant, low byte of check code

0x01

0x1A

Constant, high byte of check code

0x02

Vendor ID (Low)

Low byte of Vendor ID, idVendor field of Standard Device Descriptor

0x03

Vendor ID (High)High byte of Vendor ID

0x04

Product ID (Low)

Low byte of Product ID, idProduct field of Standard Device Descriptor

0x05

Product ID (High)High Byte of Product ID

0x06

Device Release (Low)

Low byte of Device Release Number, must be Binary Coded Decimal,
bcdDevice field of Standard Device Descriptor

0x07

Device Release (High)High byte of Device Release Number, must be Binary Coded Decimal

0x08 ~
0x19

Filling0x1A

Port Number

0x1B ~
0x1E

Filling0x1F

Check SumAll 0x00
Number of Downstream Ports, bNbrPorts field of Hub Descriptor.
All 0x00
The 8-bit sum of all value from 0x00 to 0x1E.

The first two bytes are the check code from the existence of EEPROM, their value must be 0x1A40.
Any other value would cause the EEPROM loading mechanism of FE1.1s to conclude that the contentsof this EEPROM is unusable, and use the default value instead.
The last byte, 0x1F, is a checksum made up of the sum of all value from 0x00 to 0x1E. The number
must match to render the content of the EEPROM usable. Otherwise, the loading mechanism of FE1.1s
would discard the value from EEPROM and use default value instead.

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USB 2.0 4-Port Hub
Data Sheet Rev. 1.0

ELECTRICAL CHARACTERISTICS
ABSOLUTE MAXIMUM RATINGS
Parameter

Symbol

Min.

Max.

Unit

Storage Temperature

TS-55+150℃

Power Supply Voltage

VDD5VD33
VD18-0.5-0.5-0.5+6.0+4.0+2.5

V

ESD Human Body Mode-2000

2000

V

ESD Machine Mode-200200V

Latch Up-200200mA

Min.

Typ.

RECOMMENDED OPERATING RANGESParameter

SymbolOperating temperature

TA0

Operating voltage

VDD5VD33
VD18

4.5
3.0
1.62

LOW level voltage of digital input

VIL

HIGH level voltage of digital input

Max.

Unit

70℃

5.5
3.6
1.98

V-0.3

0.8

V

VIH

2.0

5.5

V

Threshold voltage of digital input

VTH

1.45

1.58

1.74

V

Low-to-High level of schmitt-trigger input

VT+1.44

1.5

1.56

VHigh-to-Low level of schmitt-trigger input

VT-0.89

0.94

0.99

V

LOW level voltage of digital output@4mA

VOL0.4V

HIGH level voltage of digital output@4mA

VOH

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2.4

5.0
3.3
1.8

V8

USB 2.0 4-Port Hub
Data Sheet Rev. 1.0

POWER CONSUMPTIONDC SUPPLY CURRENT
SymbolCondition

Active ports
I_suspend

3Icc
21

No active

Unit

500

uA

DeviceSuspend
4NOV. 29, 2008

HostTyp.

Full-Speed

4x Full-Speed

25mA

High-Speed

4x High-Speed

100mA

High-Speed

4x Full-Speed

42mA

Full-Speed

3x Full-Speed

25

mA

High-Speed

3x High-Speed

86

mA

High-Speed

3x Full-Speed

42mA

Full-Speed

2x Full-Speed

25

mA

High-Speed

2x High-Speed

71

mA

High-Speed

2x Full-Speed

42mA

Full-Speed

1x Full-Speed

25

mA

High-Speed

1x High-Speed

57

mA

High-Speed

1x Full-Speed

42mA

Full-Speed

25

mA

High-Speed

42mA

Subject to Change Without Notice9USB 2.0 4-Port Hub
Data Sheet Rev. 1.0

PACKAGE
28-pin SSOP (Body Size: 10x4 mm, Pitch: 0.64mm)

原理图地址: http://ishare.iask.sina.com.cn/f/20573757.html

TERMINUS TECHNOLOGY INC.
1052, 10F, NO. 3-2, YUANQU ST. NANGANGTAIPEI, TAIWAN, ROC
NOV. 29, 2008

Subject to Change Without Notice10