Instruction/ maintenance manual of the product USB3250 SMSC
Go to page of 9
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.
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.
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.
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.
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.
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.
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.
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 T.
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.
An important point after buying a device SMSC USB3250 (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought SMSC USB3250 yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data SMSC USB3250 - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, SMSC USB3250 you will learn all the available features of the product, as well as information on its operation. The information that you get SMSC USB3250 will certainly help you make a decision on the purchase.
If you already are a holder of SMSC USB3250, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime SMSC USB3250.
However, one of the most important roles played by the user manual is to help in solving problems with SMSC USB3250. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device SMSC USB3250 along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
