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SMSC USB3250

PRODUCT PREVIEW

Revision 1.7 (05-11-07) 

Data Brief

PRODUCT FEATURES

USB3250

Hi-Speed USB Device 
Transceiver with UTMI 
Interface

„

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 45

Ω

 and 1.5k

Ω

 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

-40

o

C to +85

o

C (ambient)

Applications

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

Содержание USB3250

Страница 1: ...ecovery 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...

Страница 2: ...s 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 persona...

Страница 3: ...circuit protection of DP and DM lines is provided for USB compliance While transmitting data the PHY serializes data and generates SYNC and EOP fields It also performs needed bit stuffing and NRZI enc...

Страница 4: ...VDDA3 3 VSSA RBIAS VDDA3 3 VSSA XI XO VDDA1 8 SUSPENDN VSS VDD3 3 XCVRSELECT OPMODE 1 OPMODE 0 VDD1 8 VDD1 8 RESET DATA 15 DATA 14 DATA 13 VDD3 3 DATA 5 DATA 2 DATA 3 DATA 4 DATA 1 USB 2 0 USB3250 PH...

Страница 5: ...ensure that the 1 5k pull up on DP remains powered 0 Transceiver circuitry drawing suspend current 1 Transceiver circuitry drawing normal current CLKOUT Output Rising Edge System Clock This output is...

Страница 6: ...ing into the TX Holding Register on the rising edge of CLKOUT TXREADY is an acknowledgement to the SIE that the transceiver has clocked the data from the bus and is ready for the next transfer on the...

Страница 7: ...Data Pin Table 4 Biasing and Clock Oscillator Pins NAME DIRECTION ACTIVE LEVEL DESCRIPTION RBIAS Input N A External 1 bias resistor Requires a 12K resistor to ground Used for setting HS transmit curr...

Страница 8: ...0 DATA 1 DATA 2 DATA 3 DATA 4 DATA 5 DATA 6 DATA 7 DATA 8 DATA 9 DATA 10 DATA 11 DATA 12 DATA 13 DATA 14 DATA 15 XI XO DP DM VDDA1 8 VDD1 8 VDD1 8 VDD1 8 VDD1 8 VDDA3 3 VDDA3 3 VDD3 3 VDD3 3 VDD3 3 V...

Страница 9: ...0 05 0 1 2 07 04 1 1 2 06 04 2 07 04 C JEDEC MO 220 1 O F 1 56 TERMINAL QFN 8x8m m BODY 0 5m m PITCH PACKAGE OUTLINE MO 56 QFN 8x8 SIDE VIEW 3 D VIEWS TOP VIEW 3 2 BOTTOM VIEW N O TES 1 ALL DIMENSION...

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