USB331x Family
Highly Integrated, Hi-Speed USB 2.0 ULPI Transceiver Family for Portable
Consumer Electronics Applications
The USB331x family of Hi-Speed USB 2.0 transceivers provides a highly integrated, small
footprint solution designed for portable consumer electronics devices including cell phones,
PDAs, portable media players and GPS/personal navigation devices. The USB331x family
eliminates the need for external USB switches and electrostatic discharge (ESD) protection
devices, which minimizes eBOM part count and printed circuit board (PCB) area. The
USB331x provides an extremely flexible solution which allows the USB connector to act as
a single port of connection for high speed data transfer, battery charging and stereo/mono
audio accessories.
Highlights
n
Highly integrated, Hi-Speed USB 2.0
n
SMSC flexPWR™ technology
transceivers
Integrated USB switch
Internal ESD protection circuits
Integrated 3.3V LDO regulator
External passive components
minimized
n
Industry’s best current ESD performance
in a Hi-Speed USB transceiver
±8kV HBM
±8kV/±15kV IEC (contact/air)
No external ESD protection circuits
required
n
Ability to use the USB connector as a
single port of connection
Switch Hi-Speed data, battery
charging and stereo/mono audio
accessories
n
n
n
n
n
Variable I/O voltage capability (fixed
1.8V or a range of 1.8V to 3.3V)
Low power and standby modes
of operation to minimize power
consumption
Flexible reference clock to support major
system clock frequencies - 13MHz,
19.2MHz, 24MHz and 26MHz
Robust design tolerates “noisy” clock
and power supplies
Small package size and very low eBOM
part count
Hi-Speed USB On-The-Go (OTG) - host
and device capable
Supports commercial (0° to 70°C) and
industrial (-40° to 85°C) temperature
ranges
Target Applications
n
Cell Phones
n
Smart Phones
n
PDAs
n
GPS Personal Navigation Devices
n
Personal Media Players (PMPs)
n
Digital Still and Video Cameras
n
External Hard Disk Drives
n
Printers
n
Set-top Boxes
n
Digital TVs
n
Gaming Consoles
n
Industrial Systems
Features and Benefits
FEATURES
BENEFITS
Integrated USB switch and ESD protection Provides lower eBOM part count and smaller PCB footprint area
USB utilized as a single port of connection Reduction of end product size and cost
SMSC flexPWR technology
Flexible and easy-to-use solution
Ability to tolerate “noisy” clocks and
power supplies
Small package footprint
Longer battery life
Faster time-to-market and lower product development cost
Does not require costly filtering or clock generator circuits to preserve
Hi-Speed eye diagram integrity
Efficient PCB board space utilization
Multiple clock input frequencies supported Eliminates cost and size of external crystal oscillator for typical systems
What is SMSC flexPWR Technology?
SMSC flexPWR provides:
Low current design well-suited for battery powered applications
•
Integrated battery to 3.3V linear regulator
•
Variable I/O voltage to support a wide variety of processors
•
Low current sleep mode tri-states all ULPI pins
•
Allows OTG host to turn VBUS off to conserve battery
•
TM
USB331x Integrates Four Functions into One Solution!
FUNCTION
CURRENT IMPLEMENTATION
SMSC SOLUTION
USB331x
Reg
DP
DM
Reg
DP
ESD Protection Circuits
ESD Protection Circuits
ULPI To
Processor
Hi-Speed
USB
Transceiver
ULPI To
Processor
DM
Hi-Speed
USB
Transceiver
DP
DM
DP
USB Connector
USB Connector
USB Switch
USB Switch
DM
To
Processor
Battery
Charging
Audio
USB 1.1
To
Processor
Battery
Charging
Audio
USB 1.1
HI-SPEED USB TRANSCEIVER
USB SWITCH
REGULATOR
ESD PROTECTION
CAPACITORS
Discrete
Discrete
Discrete
External
4.7uF
2uF
INTEGRATED SOLUTION!
Which USB331x Family Member is Right for Your Design?
PART NUMBER
USB3311
USB3315
USB3316
USB3317
USB3318
USB3319
SMSC Literature #CP-PHY-036-06/07
REFERENCE CLOCK FREQUENCY
26MHz
24MHz
19.2MHz
26MHz
13MHz
13MHz
I/0 VOLTAGE
1.8V
1.8 - 3.3V
1.8V
1.8 - 3.3V
1.8 - 3.3V
1.8V
INTEGRATED USB SWITCH
YES
NO
YES
NO
NO
YES
Copyright ©2007 SMSC or its subsidiaries. All rights reserved. Although the information in this document has been checked and is believed to be accurate, no responsibility is assumed for inaccu-
racies. SMSC reserves the right to make changes to product descriptions and specifications at any time without notice. Contact your local SMSC sales office to obtain the latest specifications before
placing your product order. The provision of this information does not convey any licenses under any patent rights or other intellectual property rights of SMSC or others. All sales are expressly condi-
tional on your agreement to the terms and conditions of the most recently dated version of SMSC’s standard Terms of Sale Agreement dated before the date of your order. Products may contain design
defects or errors known as anomalies which may cause a product’s functions to deviate from published specifications. Anomaly sheets are available upon request. SMSC products are not designed,
intended, authorized or warranted for use in any life support or other application where product failure could cause or contribute to personal injury or severe property damage. Any and all such uses
without prior written approval of an Officer of SMSC and further testing and/or modification will be fully at the risk of the customer. Copies of this document or other SMSC literature, as well as the
Terms of Sale Agreement, may be obtained by visiting SMSC’s website at http://www.smsc.com. SMSC and the SMSC logo are registered trademarks and SMSC flexPWR is a trademark of Standard
Microsystems Corporation (“SMSC”). Other names mentioned may be trademarks of their respective holders. All claims made herein speak as of the date of this material. The company does not
undertake to update such statements. (6/07)
For more information visit www.smsc.com or call 1.800.443.SEMI
SMSC 80 Arkay Drive, Hauppauge, NY 11788
For RoHS compliance and environmental information, please visit www.smsc.com/rohs
京公网安备 11010802033920号
EEWORLD
