SMSC USB3310 User Manual
USB3310
Hi-Speed USB Transceiver
with 1.8V ULPI Interface Multi-Frequency Reference
Clock
PRODUCT FEATURES
USB-IF “Hi-Speed” compliant to the Universal Serial
Bus Specification Rev 2.0
Interface compl iant with the ULPI Specification
revision 1.1 as a Single Data Rate (SDR) PHY
1 .8V IO Voltage (±10%)
flexPWR
— Low current design ideal for battery powered
— “Sleep” mode tri-states all ULPI pins and places the
Sup ports FS pre-amble fo r FS hu bs with a LS device
attached (UTMI+ Level 3)
Sup ports HS SOF and LS keep-alive pulse
Inclu des full support for the optional On-The-Go
(OTG) protocol detailed in the On-The-Go
Supplement Revision 1.0a specification
Sup ports the OTG Host Negotiation Protocol (HNP)
and Session Request Protocol (SRP)
All ows host to turn VBUS off to conserve battery
power in OTG applications
Sup port OTG mon itoring o f VBUS levels with intern al
comparators
“Wrapper-less” design for optimal timing performance
and design ease
— Low Latency Hi-Speed Receiver (43 Hi-Speed clocks
Interna l 5V cable short-circuit protection of ID, DP
and DM lines to VBUS or ground
1 3, 19.2, 24 or 26MHz Selectable Reference
ClockFrequency
— 0 to 3.6V input drive tolerant
— Able to accept “noisy” clock sources
Interna l low jitter PLL for 480MHz Hi-Speed USB
operation
Internal detection of the value of resistance to ground
on the ID pin
Integra ted battery to 3.3V LDO regulator
— 2.2uF bypass capacitor
— 100mV dropout voltage
TM
Technology
applications
part in a low current state
Max) allows use of legacy UTMI Links with a ULPI
bridge
Data Brief
Integrated ESD protection circuits
—Up to ±15kV without any external devices
C arkit UART mode for non-USB serial data transfers
Ind ustrial Operating Temperature -40°C to +85°C
Packaging Options
— 24 pin QFN lead-free RoHS compliant package
(4 x 4 x 0.90 mm height)
Applications
The USB3310 is targeted for any application where a HiSpeed USB connection is desired and when board
space, power, and interface pins must be minimized.
The USB3310 is well suited for:
C ell Phones
PDAs
MP3 Pl ayers
GPS Persona l Navigation
Scanners
Externa l Hard Drives
D igital Still and Video Cameras
Po rtable Media Players
En tertainment Devices
Printers
Set Top Boxes
Video Record/Playback Systems
IP an d Video Phones
Gaming Consoles
POS Terminals
SMSC USB3310 REV C PRODUCT PREVIEW Revision 1.11 (10-31-08)
Hi-Speed USB Transceiver with 1.8V ULPI Interface - Multi-Frequency Reference Clock
Order Number(s):
USB3310C-CP-TR FOR 24 PIN, QFN LEAD-FREE ROHS COMPLIANT PACKAGE (TAPE AND REEL)
REEL SIZE IS 4000 PIECES.
80 ARKAY DRIVE, HAUPPAUGE, NY 11788 (631) 435-6000, FAX (631) 273-3123
Copyright © 2008 SMSC or its subsidiaries. All rights reserved.
Circuit diagrams and other information relating to SMSC products are includ ed as a means of illustrating typical application s. Consequently, complete information sufficient for
construction purposes is not necessarily given. Although the information has been checked and is believed to be accurate, no responsibility is assumed for inaccuracies. SMSC
reserves the right to make changes to specifications and product descriptions 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 to the purchaser of the described semiconductor devices any licenses under any patent
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Revision 1.11 (10-31-08) 2 SMSC USB3310 REV C
PRODUCT PREVIEW
Hi-Speed USB Transceiver with 1.8V ULPI Interface - Multi-Frequency Reference Clock
General Description
The USB3310 is a highly integrated Hi-Speed USB 2.0 Transceiver (PHY) that supports systems
architectures based on a 13, 19.2, 24 or 26MHz reference clock. The frequency of the reference clock
is selected by configuration. It is designed to be used in both comme rcial and industrial temperature
applications.
The USB3310 meets all of the electrical requirements to be used as a Hi-Speed USB Host, Device,
or an On-the-Go (OTG) device. In addition to the supporting USB signaling the USB3310 al so provides
USB UART mode.
USB3310 uses the industry standard UTMI+ Low Pin Interface (ULPI) to connect the USB PHY to the
Link. The industry standard ULPI interface uses a method of in-band signaling and status byte transfers
between the Link and PHY, to facilitate a USB session. By using in-band signaling and status byte
transfers the ULPI interface requires only 12 pins.
The USB3310 uses SMSC’s “wrapper-less” technology to implement the ULPI interface. This “wrapperless” technology allows the PHY to achieve a low latency transmit and receive time. SMSC’s low
latency transceiver allows an existing UTMI Link to be reused by adding a UTMI to ULPI bridge. By
adding a bridge to the ASIC the existing and proven UTMI L ink IP can be reused.
REFSEL[1]
REFSEL[0]
REFCLK
Low Jitter
RBIAS
RESETB
VBAT
VDD33
VDD18
STP
NXT
DIR
CLKOUT
VBUS
DP
DM
Integrated
ID
OTG
PLL
BIAS
Integrated
Power
Managem ent
ESD Protection
Hi-Speed
USB
Transceiver
ULPI
Registers
and State
Machine
U LPI In ter fa ce
Carkit
DATA[7:0]
Figure 1 USB3310 Block Diagram
The USB3310 is designed to operate with an external reference clock at one of four frequencies. By
using an available reference, the USB3310 saves the cost of a crystal reference.
The USB3310 includes a integrated 3.3V LDO regulator to generate its own supply from power applied
at the VBAT pin. The voltage on the VBAT pin can range from 3.1 to 5.5V. The regulator dropout
voltage is less than 100mV which allows the PHY to continue USB signaling when the voltage on
VBA T drops to 3.1V. The USB transceiver will continue to operate at lower voltages, although some
parameters may be outside the limits of the USB specifications. If the user would like to provide a 3.3V
supply to the USB3310, the VBAT and VDD33 pins should be connected together.
The USB3310 also includes integrated pull-up resistors that can be used for detecting the attachment
of a USB Charger. By sensing the attachment to a USB Charger, a product using the USB3310 can
charge its battery at more than the 500mA allowed when charging from a USB Host.
SMSC USB3310 REV C 3 Revision 1.11 (10-31-08)
PRODUCT PREVIEW
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