General Description
The USB3311 is a highly integrated Hi-Speed USB2.0 Transceiver (PHY) that supports systems
architectures based on a 26MHz reference clock. It is designed to be used in both commercial and industrial temperature applications.
The USB3311 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 USB3311 also provides USB UART mode and USB Audio mode.
USB3311 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 USB3311 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 Link IP can be reused.

*USB-IF “Hi-Speed” compliant to the Universal Serial Bus Specification Rev 2.0
*Interface compliant with the ULPI Specification revision 1.1 as a Single Data Rate (SDR) PHY
*1.8V IO Voltage (+/- 10%)
*SMSC flexPWRTM Technology
-Low current design ideal for battery powered applications
-“Sleep” mode tri-states all ULPI pins and places the part in a low current state
*Supports FS pre-amble for FS hubs with a LS device attached (UTMI+ Level 3)
*Supports HS SOF and LS keep-alive pulse
*Includes full support for the optional On-The-Go (OTG) protocol detailed in the On-The-Go Supplement Revision 1.0a specification
*Supports the OTG Host Negotiation Protocol (HNP) and Session Request Protocol (SRP)
*Allows host to turn VBUS off to conserve battery power in OTG applications
*Support OTG monitoring of VBUS levels with internal comparators
*“Wrapper-less” design for optimal timing performance and design ease
-Low Latency Hi-Speed Receiver (43 Hi-Speed clocks Max) allows use of legacy UTMI Links with a ULPI bridge
*Internal 5V cable short-circuit protection of ID, DP and DM lines to VBUS or ground
*26MHz Reference Clock operation
-0 to 3.6V input drive tolerant
-Able to accept “noisy” clock sources
*Internal low jitter PLL for 480MHz Hi-Speed USB operation
*Internal detection of the value of resistance to ground on the ID pin
*Integrated battery to 3.3V LDO regulator
-2.2uF bypass capacitor
-100mV dropout voltage
*Integrated ESD protection circuits
-Up to +-15kV without any external devices
*Carkit UART mode for non-USB serial data transfers
*Integrated USB Switch
-Allows single USB port of connection
-High speed data
-Battery charging
-Stereo and mono/mic audio
-USB1.1 data
*Industrial 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)
-25 ball VFBGA lead-free RoHS compliant package also available; (3 x 3 x 0.88mm height)

The USB3311 is targeted for any application where a Hi-Speed USB connection is desired and when board space, power, and interface pins must be minimized.
The USB3311 is well suited for:
*Cell Phones
*MP3 Players
*GPS Personal Navigation
*External Hard Drives
*Digital Still and Video Cameras
*Portable Media Players
*Entertainment Devices
*Set Top Boxes
*Video Record/Playback Systems
*IP and Video Phones
*Gaming Consoles
*POS Terminals

USB3311-CP-TR, USB3311-GJ-TR

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