High Speed 4-Port USB Hub
Data Sheet Rev. A0.9
FE8.1
HIGH SPEED 4-PORT USB HUB CONTROLLER
Data Sheet
Speed (480MHz) and Full-Speed
INTRODUCTION
(12MHz) modes;
The Terminus FE8.1 is an extremely compact High
□
4 Downstream Facing Ports support High-
Speed 4-port USB hub controller. It is compliant to
Speed, Full-Speed, and Low-Speed
USB-IF “Universal Serial Bus Specification
(1.5MHz) modes;
Revision 2.0” (USB 2.0) specification from every
Integrated upstream 1.5KΩ pull-up,
aspects but one – FE8.1 always reports itself as an
downstream 15KΩ pull-down, and serial
Self-Powered hub, regardless of the actual system
resisters;
implementation. To achieve the absolutely minimal
pin counts, there is no input signal pins left to
monitor the local power status.
Integrated 5V to 3.3V and 1.8V regulators;
Integrated Power-On-Reset with power failure
detection circuit;
The FE8.1 is a highly integrated, high quality, and
high performance solution for USB 2.0 4-port hub.
With its tiny footprint and extremely low power
resister and crystal load capacitors;
consumption, it is the best choice for embedded
application as well as standalone hub.
Integrated 12MHz Oscillator with feedback
Integrated 12MHz-to-480MHz Phase Lock
Loop (PLL);
Single Transaction Translator (Single TT) –
The high quality of FE8.1 is guaranteed by Design-
□
One TT for all downstream ports;
For-Testing with comprehensive scan chains and
□
The TT could handle 64 periodic Start-
Built-In-Self-Test modes which could exercise all
Split transactions, 32 periodic Complete-
High, Full, and Low Speed Analog Front End (AFE)
Split transactions, and 6 none-periodic
components on the packaging and testing stages.
transactions;
FEATURES
USB 2.0 fully compliant AFE transceivers:
□
Upstream Facing Port supports High-
April 16, 2014
Subject to Change Without Notice
1
High Speed 4-Port USB Hub
Data Sheet Rev. A0.9
ORDER INFORMATION
P/N-Order Code
Description
Package Type
TBD
16-pin SSOP
(5mm x 4mm)
TBD
High Speed 4-Port
16-pin SSOP
USB Hub Controller (5mm x 4mm)
TBD
16-pin WQFN
(3mm x 3mm)
April 16, 2014
Subject to Change Without Notice
Packing
Minimum Order
Quantity
Tape & Reel
TBD
Tube
TBD
Tape & Reel
TBD
2
High Speed 4-Port USB Hub
Data Sheet Rev. A0.9
BLOCK DIAGRAM
To Downstream
Devices
Downstream
PHY #1
Downstream
PHY #2
To Upstream
Host/Hub
Downstream
PHY #3
Downstream
PHY #4
Upstream
PHY
Routing Switch
USB Multi-port Transceiver Macro Cell
3.3V & 1.8V Regulator
12MHz
Crystal
OSC
POR
PLL
(x40)
Serial
Interface
Engine
Downstream Port
Controllers
Transaction Translator
Full/Low-Speed
Handler
Data Recovery
&
Elastic Buffer
Data
Transmit
Transaction Translator
High-Speed Handler
Unified Transaction
Translator Buffer (2KB)
Upstream
Port
Controller
Hub
Controller
USB 2.0
Hub
Controller
Fig. 1: Block Diagram
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Subject to Change Without Notice
3
High Speed 4-Port USB Hub
Data Sheet Rev. A0.9
PACKAGE I
16-Pin SSOP
(Body Size: 5mm x 4mm, Pitch: 0.64mm)
PIN ASSIGNMENT
DM4
1
16
XOUT
DP4
2
15
DM3
3
14
XIN
VSS
DP3
4
13
VD33F
DM2
5
12
VDD5
DP2
6
11
DPU
DM1
7
10
DMU
DP1
8
9
REXT
FE8.1
Fig. 2: 16-Pin SSOP Pin Assignment
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Subject to Change Without Notice
4
High Speed 4-Port USB Hub
Data Sheet Rev. A0.9
PACKAGE II
16-Pin WQFN
(Body Size: 3mm x 3mm, Pitch: 0.5mm)
(Exposed Pad: 1.7mm x 1.7mm)
VD33F
VDD5
DPU
DMU
PIN ASSIGNMENT
12
XIN
XOUT
DM4
DP4
9
13
8
FE8.1
16
17 VSS
4
DM3
DP3
DM2
DP2
1
5
REXT
VSS
DP1
DM1
Fig. 3: 16-Pin WQFN Pin Assignment
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Subject to Change Without Notice
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High Speed 4-Port USB Hub
Data Sheet Rev. A0.9
PIN DESCRIPTION TABLE
Pin Name
Pin No.
Type
Function
Note
SSOP QFN
DM4
1
15
UTD The D- pin of the 4th Downstream Facing Port.
DP4
2
16
UTD The D+ pin of the 4th Downstream Facing Port.
DM3
3
1
UTD The D- pin of the 3rd Downstream Facing Port.
DP3
4
2
UTD The D+ pin of the 3rd Downstream Facing Port.
DM2
5
3
UTD The D- pin of the 2nd Downstream Facing Port.
DP2
6
4
UTD The D+ pin of the 2nd Downstream Facing Port.
DM1
7
5
UTD The D- pin of the 1st Downstream Facing Port.
DP1
8
6
UTD The D+ pin of the 1st Downstream Facing Port.
REXT
9
8
DMU
10
9
UTU The D- pin of the Upstream Facing Port.
DPU
11
10
UTU The D+ pin of the Upstream Facing Port.
VDD5
12
11
P
5V Power Input
This is the 5V power input for integrated 5V → 3.3V regulator.
However, if external 3.3V source is used, this pin should be Tied-ToGround.
VD33F
13
12
P
3.3V output filter capacitor for embedded 5V → 3.3V regulator, or
3.3V input from external source.
VSS
14
XIN
15
13
OSC 12MHz Crystal Oscillator input/External 12MHz clock input.
1
XOUT
16
14
OSC 12MHz Crystal Oscillator output.
1
External Bias Resister
A 2.7KΩ (± 1%) resister should be connected to VSS to provide
internal bias reference.
7, 17 P
Ground (pin 17 of WQFN is the underbelly exposed pad)
Type Abbreviation –
UTD:
USB Downstream Facing Port Transceiver (supporting High/Full/Low-Speed);
UTU:
USB Upstream Facing Port Transceiver (supporting High/Full-Speed);
OSC:
Crystal Oscillator (with integrated feedback resister, and crystal load capacitor);
P:
Power/Ground.
Note 1 – Crystal Requirements
•
Frequency accuracy:
12MHz ± 50ppm
•
Load capacitance:
16pF ~ 20pF
April 16, 2014
Subject to Change Without Notice
6
High Speed 4-Port USB Hub
Data Sheet Rev. A0.9
APPLICATION ALTERNATIVES
The FE8.1 can be either powered by 5V or 3.3V power source. If 3.3V power source is used, then
VDD5 must be tied to ground to insure proper operations.
April 16, 2014
Subject to Change Without Notice
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High Speed 4-Port USB Hub
Data Sheet Rev. A0.9
ELECTRICAL CHARACTERISTICS
ABSOLUTE MAXIMUM RATINGS
Parameter
Symbol
Min.
Max.
Unit
Storage Temperature
TS
-55
+150
°C
Power Supply Voltage
VDD5
VD33
-0.5
-0.5
+6.0
+4.0
V
-2000
+2000
V
ESD Machine Mode (JEDEC Class B)
-200
+200
V
ESD Charged Device Mode
-500
+500
V
Latch Up (Class I, Level A)
-200
+200
mA
ESD Human Body Mode (MIL-STD Class 2)
Recommended Operating Ranges
Parameter
Symbol
Operating Temperature
TA
Operating Voltage
VDD5
VD33
LOW level voltage of digital input
VIL
HIGH level voltage of digital input
Min.
Typ.
Max.
70
°C
5.5
3.6
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
V
High-to-Low level of Schmitt-trigger input
VT-
0.89
0.94
0.99
V
LOW level voltage of digital output
VOL
0.4
V
HIGH level voltage of digital output
VOH
XIN input capacitance
Cin
Internal Pull-Up Resister Range
RPU
April 16, 2014
0
Unit
4.5
3.0
5.0
3.3
2.4
V
32
39
Subject to Change Without Notice
65
pF
116
KΩ
8
High Speed 4-Port USB Hub
Data Sheet Rev. A0.9
POWER CONSUMPTION
ABSOLUTE MAXIMUM RATINGS
Symbol
Condition
Active
I_suspend
Icc
Host
3
2
1
No Active
Unit
740
μA
Devices
Suspend
4
Typical
High-Speed
4 x High-Speed
86
mA
High-Speed
4 x Full-Speed
40
mA
Full-Speed
4 x Full-Speed
27
mA
High-Speed
3 x High-Speed
74
mA
High-Speed
3 x Full-Speed
40
mA
Full-Speed
3 x Full-Speed
27
mA
High-Speed
2 x High-Speed
62
mA
High-Speed
2 x Full-Speed
40
mA
Full-Speed
2 x Full-Speed
27
mA
High-Speed
1 x High-Speed
51
mA
High-Speed
1 x Full-Speed
40
mA
Full-Speed
1 x Full-Speed
27
mA
High-Speed
None
40
mA
Full-Speed
None
27
mA
Note: The power consumption is measured when the bus is in IDLE state – there is no activities
other than the Start-Of-Frame (SOF) and INTERRUPT-IN packets for the hub itself on the bus.
The peak power consumption varies depending upon the system configuration, type of operations,
and over-all bus utilization.
April 16, 2014
Subject to Change Without Notice
9
High Speed 4-Port USB Hub
Data Sheet Rev. A0.9
PACKAGE I
16-pin SSOP (Body Size: 5x4 mm, Pitch: 0.64mm)
April 16, 2014
Subject to Change Without Notice
10
High Speed 4-Port USB Hub
Data Sheet Rev. A0.9
PACKAGE II
16-pin WQFN (Body Size: 3x3 mm, Pitch: 0.5mm, Exposed Pad: 1.7x1.7mm)
Terminus Technology Inc.
5F, No. 9, Lane. 130, Sec. 3,
MinSheng East Road, SongShan Dist.
Taipei City 105, TAIWAN, R.O.C.
www.terminus-tech.com
April 16, 2014
Subject to Change Without Notice
11
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