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SMSC USB3250 Specifications

Hi-speed usb device transceiver with utmi interface
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PRODUCT FEATURES

USB-IF "Hi-Speed" certified to USB 2.0 electrical
specification
Interface compliant with the UTMI specification
(60MHz 8-bit unidirectional interface or 30MHz 16-bit
bidirectional interface)
Supports 480Mbps High Speed (HS) and 12Mbps
Full Speed (FS) serial data transmission rates
Integrated 45Ω and 1.5kΩ termination resistors
reduce external component count
Internal short circuit protection of DP and DM lines
On-chip oscillator operates with low cost 12MHz
crystal
Robust and low power digital clock and data recovery
circuit
SYNC and EOP generation on transmit packets and
detection on receive packets
NRZI encoding and decoding
Bit stuffing and unstuffing with error detection
Supports the USB suspend state, HS detection, HS
Chirp, Reset and Resume
Support for all test modes defined in the USB 2.0
specification
Draws 72mA (185mW) maximum current
consumption in HS mode - ideal for bus powered
functions
On-die decoupling capacitance and isolation for
immunity to digital switching noise
Available in a 56-pin QFN package
Full industrial operating temperature range from
o
o
-40
C to +85
C (ambient)
SMSC USB3250
USB3250
Hi-Speed USB Device
Transceiver with UTMI
Interface
The Universal Serial Bus (USB) is the preferred
interface to connect Hi-Speed PC peripherals.
Digital Still and Video Cameras
MP3 Players
External Hard Drives
Scanners
Entertainment Devices
Printers
Test and Measurement Systems
POS Terminals
Set Top Boxes
PRODUCT PREVIEW
Applications
Revision 1.7 (05-11-07)
Data Brief

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Summary of Contents for SMSC USB3250

  • Page 1: Product Features

    On-die decoupling capacitance and isolation for immunity to digital switching noise Available in a 56-pin QFN package Full industrial operating temperature range from C to +85 C (ambient) SMSC USB3250 USB3250 Hi-Speed USB Device Transceiver with UTMI Interface Applications The Universal Serial Bus (USB) is the preferred interface to connect Hi-Speed PC peripherals.

  • Page 2: Order Number

    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.

  • Page 3: General Description

    Hi-Speed USB Device Transceiver with UTMI Interface General Description The USB3250 provides the Physical Layer (PHY) interface to a USB 2.0 Device Controller. The IC is available in a 56 pin QFN. The USB3250 is a USB 2.0 physical layer transceiver (PHY) integrated circuit. SMSC's proprietary technology results in low power dissipation, which is ideal for building a bus powered USB 2.0...

  • Page 4: Pin Configuration

    Pin Configuration VSSA VDDA3.3 VSSA RBIAS VDDA3.3 VSSA VSSA VDDA1.8 SUSPENDN Figure 2 56-Pin USB3250 Pin Configuration (Top View) Revision 1.7 (05-11-07) Hi-Speed USB Device Transceiver with UTMI Interface USB 2.0 USB3250 PHY IC PRODUCT PREVIEW DATA[1] DATA[2] DATA[3] DATA[4] VDD1.8...
  • Page 5 Rising Edge OPMODE[1:0] Input LINESTATE[1:0] Output DATABUS16_8 Input SMSC USB3250 Table 1 System Interface Pins ACTIVE LEVEL High Reset. Reset all state machines. After coming out of reset, must wait 5 rising edges of clock before asserting TXValid for transmit.
  • Page 6 VALIDH is an output DATA[7:0] input is valid for transmit VALIDH is an input DATA[15:0] input is valid for transmit VALIDH is an input DATA[15:0] Not used DATA[15:8] output is valid for receive DATA[7:0] input is valid for transmit SMSC USB3250...
  • Page 7 Note 2.2 All VSS and VSSA are bonded to the exposed pad under the IC in the package. The exposed pad must be connected to solid GND plane on printed circuit board. SMSC USB3250 Table 3 USB I/O Pins ACTIVE LEVEL USB Positive Data Pin.

  • Page 8: Application Diagram

    OPMODE 1 DATA 13 DATA 14 LINESTATE 0 DATA 15 LINESTATE 1 CLKOUT 1ΜΩ POWER VDDA1.8 VDD1.8 VDD1.8 VDD1.8 VDD1.8 VDD1.8 VDDA3.3 VDDA3.3 VDD3.3 VDD3.3 VDD3.3 VDD3.3 PRODUCT PREVIEW VALIDH RESET RBIAS 12KΩ USB-B VSSA VSSA VSSA VSSA SMSC USB3250...

  • Page 9: Package Outline

    Package Outline T E R M IN A L #1 IDEN T IF IER AR EA (D 1 /2 X E 1/2) 4X 45°X 0.6 M A X (O PTIONAL) T OP V IEW S ID E VIEW 3-D V IE W S T E R M IN A L #1 IDEN T IF IE R AR EA (D /2 X E/2)

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