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SMSC USB3250 manual

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Table of contents for the manual

  • Page 1

    SMSC USB3250 PRODUCT PREVIEW Revision 1.7 (05-1 1-07) Data Brief PRODUCT FEA TURES USB3250 Hi-S peed USB Device T ransceiver with UTMI Interface  USB-IF "Hi-S peed" certified to USB 2.0 el ectrical specification  Interface compliant with th e UTMI specification (60MHz 8-bit unidirectional interface or 30MHz 16-bit bidirectional inte[...]

  • Page 2

    ORDER NUMBER: USB3250-ABZJ FOR 56 PIN, QFN LEAD-FR EE ROHS COMPLIANT PAC KAGE, 8 X 8 X 0.85MM 80 ARKA Y DRIV E, HAUPP AUGE, NY 1 1788 (631) 435-6000, F AX (631) 273 -3123 Copyright © 200 7 SMSC or its subsidiar ies. All rights reserved. Circuit diagrams and o ther information rela ti ng to SMSC pr oducts are includ ed as a means of illustra ting t[...]

  • Page 3

    Hi-S peed USB Device Transceiver with UTMI Interface SMSC USB3250 3 Revision 1.7 (05-1 1-07) PRODUCT PREVIEW General Description The USB3250 provides the Ph ysical 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 laye r transceiver (PHY) inte grated circuit. SMSC's pr[...]

  • Page 4

    Hi-S peed USB Device Transceiver with UTMI Interface Revision 1.7 (05-1 1-07) 4 SMSC USB3250 PRODUCT PREVIEW Pin Configuration Figure 2 56-Pin USB3250 Pin Con figuration (T op View) TERMSELE CT LINESTATE[1] LINESTATE[0] VSS DATA[6 ] DATA[7 ] DATA[8 ] DATA[9 ] DATA[ 10] DATA[ 11] DATA[ 12] VSSA DM DP VDDA3.3 VSSA RBIAS VDDA3.3 VSSA XI XO VDDA1.8 SUS[...]

  • Page 5

    Hi-S peed USB Device Transceiver with UTMI Interface SMSC USB3250 5 Revision 1.7 (05-1 1-07) PRODUCT PREVIEW Pin Description T ables T able 1 Sy stem Interface Pins NAME DIRECTION ACTIVE LEVEL DESCRIPTION RESET Input High Reset. Reset all state machines. Af ter coming out of reset, must wait 5 rising edges of clock before asserting TXV alid for tra[...]

  • Page 6

    Hi-S peed USB Device Transceiver with UTMI Interface Revision 1.7 (05-1 1-07) 6 SMSC USB3250 PRODUCT PREVIEW T able 2 Data Interface Pins NAME DIRECTION ACTIVE LEVEL DESCRIPTION DA T A[15:0] Bidir N/A DATA BUS. 16-BIT BIDIRECTIONAL MODE. TXV ALID RXV ALID V ALIDH DA T A[15:0] 0 0 X Not used 0 1 0 DA T A[7:0] ou tput is valid for receive V ALIDH i s[...]

  • Page 7

    Hi-S peed USB Device Transceiver with UTMI Interface SMSC USB3250 7 Revision 1.7 (05-1 1-07) PRODUCT PREVIEW Note 2.1 A Ferrite Bead (with DC resistance <.5 Ohms ) is recommended for filtering between both the VDD3.3 and VDDA3.3 sup plies and the VDD1.8 and VDDA1.8 Supplies. Note 2.2 All VSS and VSSA are bonded to the exposed pad under the IC in[...]

  • Page 8

    Hi-S peed USB Device Transceiver with UTMI Interface Revision 1.7 (05-1 1-07) 8 SMSC USB3250 PRODUCT PREVIEW Application Diagram Figure 3 A pplicatio n Diagra m for 56-pin QFN Package UTMI USB POWER TXVALID TXREADY RXACTIVE RXVALID RXERROR VALIDH DATABUS1 6_8 XCVRSELECT TERMSELECT SUSPENDN RESET OPMODE 0 OPMODE 1 LINESTATE 0 LINESTATE 1 CLKOUT DATA[...]

  • Page 9

    Hi-S peed USB Device Transceiver with UTMI Interface Revision 1.7 (05-1 1-07) 9 SMSC USB3250 PRODUCT PREVIEW Package Outline A IN ITIA L R ELE ASE 2/07/04 S.K .ILIEV DECIMA L X. X X.X X X.X XX MATERI A L FI NI SH ST D COMP LI ANC E THI RD AN GL E PROJ ECT I ON PRINT WITH "S C AL E T O F I T" DO NOT S CALE D RA WI NG APPR OVED ANGULA R U N[...]