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TOPICS INTRODUCTION HISTORY

OVERVIEW

FEATURESARCHITECTURE

COMPARISION

TYPES

ADVATAGES

APPLICATION

CONCLUSION

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INTRODUCTION USB stands for Universal Serial Bus

The latest version of USB is named as USB 3.0 orSUPERSPEED USB.

Allows users to connect a wide variety of peripherals to acomputer and have them automatically configured andready to use.

The most important use of usb 3.0 is superspeed datatransfer upto 5 Gbps.

Implements to provide peripheral device quick andeasy for the user .

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Pre-Releases of USB USB 0.7: Released in November 1994.

USB 0.8: Released in December 1994.

USB 0.9: Released in April 1995.

USB 0.99: Released in August 1995.

USB 1.0: Released in November 1995

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History of USB There have been three versions released prior

to 3.0

USB 1.0 in January 1996 data rates of 1.5 Mbps up to 12Mbps

USB 1.1 in September 1998 first widely used version ofUSB

USB 2.0 in April 2000

Major feature revision was the addition of a high speedtransfer rate of 480 Mbps

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USB 3.0 Now On Nov 17,2008 It was Developed

It is called as SUPER SPEED Technology

Transfer Mode of Up to 4.8 Gbps

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USB 3.0 OverviewAlso referred to as SuperSpeed USBSpeeds 10x faster than 2.0

Transfer of 25 GB file in approx 70 seconds (see chart)

Backward compatible with USB 2.0

USB 2.0 device will work with USB 3.0 host

USB 3.0 device will work with USB 2.0 host

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Key Features Single connector type

Replaces all different legacy connectors with one well-definedstandardized USB connector for all USB peripheral devices

Hot swappable

Devices can be safely plugged and unplugged as needed whilethe computer is running (no need to reboot)

Plug and Play

OS software automatically identifies, configures, and loads theappropriate driver when connection is made

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ARCHITECTURE

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ARCHITECTURE

USB 2.0 has 4 wires: two data lines, power and ground.USB 3.0 uses an additional 5 wires two transmit lines,two receive lines and an additional ground for a total 9.

The extra wires constitute an additional bus that works inparallel with the HighSpeed USB 2.0 port.

Unlike USB 2.0, SuperSpeed USB can both send and

receive data simultaneously. This is called dual simplexsignaling.

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ARCHITECTURE One other important change is that USB 3.0 is

asynchronous. Rather than broadcasting packets of data

to every USB device, the controller will send packets

asynchronously point-to-point, directly to the right

device by using information contained in the data

packets header. This eliminates the need for polling

devices having to constantly check if there is data to

receive.

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USB 2.0 vs. USB 3.0

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USB 3.0 Standard A Connector Same interface as the USB 2.0 Standard-A Connector ,but

with added pins for SuperSpeed USB signals

Complete compatibility with USB 2.0 Standard-A

connector

Double-stacked connectors supported

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USB 3.0 Standard-B connector

Defined for relatively large, stationery peripherals such as

hard drives and printers

Visually different from USB 2.0 Standard-B connector

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USB 3.0 Micro Connector Family

Defined for hand held devices

Backward compatible with USB 2.0 Micro connectors

Based on USB 2.0 Micro-B connector with an extendedportion for the SuperSpeed USB signals

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CABLE Unshielded Twisted Pairs (UTP) cable used for USB

2.0 cannot be used for Superspeed USB

Shielded differential pairs (SDP) twisted or twinax is for

SUPERSPEED USB

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CABLESPin Name Cable

Color

Description

1 VCC RED +5V

2 D- WHITE DATA-

3 D+ GREEN DATA+

4 GND BLACK GROUND

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CABLE LENGTH USB 1.1 maximum cable length is 3 metres (9.8 ft)

USB 2.0 maximum cable length is 5 metres (16 ft)

USB 3.0 cable assembly may be of any length

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APPLICATION General data transfer

USB implements connections to storage devices using aset of standards called the USB mass storage device class

USB 3.0 also supports portable hard disk drives .The

earlier versions were not supporting the 3.5 inch harddisk drives

High resolution webcams, video cameras

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ConclusionThe universal serial bus 3.0 is supporting a speed of

about 5Gb/sec i.e. ten times faster than the 2.0 version.

So hopefully by the help of this Superspeed data tranfer

rate the USB 3.0 will be replacing many of the

connectors in the future.

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REFERENCE http://www.usb.org

http://www.usblyzer.com

http://www.intel.com/technology/comms/uwb http://www.intel.com/technology/comms/wusb/i

ndex.htm

http://www.usb.org/http://www.usblyzer.com/http://www.intel.com/technology/comms/uwbhttp://www.intel.com/technology/comms/wusb/index.htmhttp://www.intel.com/technology/comms/wusb/index.htmhttp://www.intel.com/technology/comms/wusb/index.htmhttp://www.intel.com/technology/comms/wusb/index.htmhttp://www.intel.com/technology/comms/wusb/index.htmhttp://www.intel.com/technology/comms/uwbhttp://www.usblyzer.com/http://www.usb.org/

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THANK YOU