USB332x USB Transceiver Family
Industry’s Smallest, Hi-Speed USB 2.0 ULPI Transceiver Family for Portable Consumer
Electronics Applications
The USB332x family of Hi-Speed USB 2.0 transceivers sets a new standard for integration by
combining six functions into one extremely small size to help meet the tight board space and cost
requirements of today’s portable consumer electronics products. The highly-integrated USB332x
transceivers are designed in a wafer-level chip scale package (WLCSP) measuring 1.95mm x 1.95mm.
One of the key features of the USB332x family is the ability to protect portable products from extreme
over-voltage conditions of up to +30V on VBus. The need for external VBus over-voltage protection
ICs, USB switches, electrostatic discharge (ESD) protection devices, and reference oscillators is
eliminated, thereby minimizing eBOM part count and conserving valuable board space. The flexible
and easy-to-use USB332x family also allows the USB connector to act as a single port of connection
for Hi-Speed data transfer, battery charging and stereo/mono audio accessories.
Highlights
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Highly-integrated, Hi-Speed USB 2.0
n
Ability to use the USB connector as a single
transceivers
Integrated VBus over-voltage protection
(up to +30V)
Integrated USB switch
Internal ESD protection circuits
Integrated 3.3V LDO regulator
External passive components minimized
n
Industry’s best ESD performance in a Hi-
Speed USB transceiver
±8kV HBM
±8kV/±15kV IEC (contact/air)
No external ESD protection circuits
required
n
Supports a wide variety of common reference
clock frequencies
n
n
n
n
n
n
Target Applications
n
Cell Phones
n
Smart Phones
n
PDAs
n
GPS Personal Navigation
port of connection
Switch Hi-Speed data, battery charging
and stereo/mono audio accessories
UART mode
flexPWR™ technology
Variable I/O voltage capability
Low power and standby modes of
operation to minimize power consumption
“Wrapper-less” architecture for optimized
timing performance
Low jitter PLL makes it possible to accept
“noisy” clock sources
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
Extremely small package size and low eBOM
part count
n
Printers
n
Set-top Boxes/DVRs/PVRs
n
Digital TVs
n
Gaming Consoles
n
Industrial Systems
n
MP3 and Personal Media
Devices
Players (PMPs)
n
Digital Still and Video
Cameras
n
External Hard Disk Drives
Features and Benefits
FEATURES
Integrated VBus over-voltage protection
Integrated USB switch and ESD protection
USB utilized as a single port of connection
flexPWR technology
Flexible and easy-to-use solution
Multiple clock input frequencies supported
Ability to tolerate “noisy” clocks and power supplies
Extremely small package footprint
BENEFITS
Eliminates need for costly external over-voltage protection (OVP) IC
Provides lower eBOM part count and smaller PCB footprint area
Reduction of end product size and cost
Longer battery life
Faster time-to-market and lower product development cost
Allows USB PHY to operate from the system clock, eliminating the need for
any external crystal oscillator for the USB PHY
Does not require costly filtering or clock generator circuits to preserve
Hi-Speed eye diagram integrity
Efficient PCB board space utilization
www.smsc.com
What is flexPWR Technology?
TM
flexPWR Technology 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
USB332x Integrates Six Functions into One Solution!
ITEM
COMPETITION
Hi-Speed
USB PHY
ULPI Signals
to Controller
Ext.
Reg.
DP
DM
SMSC SOLUTION
USB
PHY
USB
Switch
USB332x
ESD Protection
USB
Switch
DP
ESD Protection
DP
ULPI Signals
to Controller
SpkRightEn
DM
USB
Connector
REFCLK
OSC
DM
USB
Connector
SpkLeftEn
OSC
Control
VBus
OVP
VBus
OVP
VBus
SPI Signals
to Processor
Full-Speed
USB PHY
or Power
Management
and Audio
SELECT
SPI Signals
to Processor
Full-Speed
USB PHY
or Power
Management
and Audio
USB PHY
USB Switch
Regulator
ESD Protection
VBus OVP IC
Oscillator
Capacitors
Discrete
Discrete
Discrete
External
External
External
4.7uF required
Only 2.2uF required
SINGLE SOLUTION!
USB332x Family Selector Guide
Part Number
USB3321
USB3322
USB3326
USB3327
USB3329
SMSC Literature #CP-PHY-070-04/09-1
Reference Clock Frequency
26MHz
12MHz
19.2MHz
27MHz
13MHz
Copyright ©2008 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, the SMSC logo, flexPWR and the flexPWR logo are registered trademarks 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. (04/08)
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
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