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SMSC USB2503A manual

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  • Page 1

    SMSC USB2503/USB2503A DA T ASHEET Revision 2.3 (08-27-07) Datasheet PRODUCT FEA TURES USB2503/ USB2503A Integrated USB 2.0 Comp atible 3-Port Hub  Integrated USB 2.0 Compatible 3-Port Hub — 3 T ransaction T ranslators for highest perfo rmance — High-S peed (480Mbits/s), Full-S pe ed (12Mbits/s) and Low-S peed (1.5Mbits/s) compatible — Full[...]

  • Page 2

    ORDER NUMBERS: USB2503/USB 2503A-HZH FOR 48 PIN QFN LEAD-FREE ROHS COMPLIANT PACKAGE Integrated USB 2.0 Compatible 3-Port Hub Datasheet Revision 2.3 (08-27-07) 2 SMSC USB2503/USB2503A DA T ASHEET 80 ARKA Y DRIVE, HAUPP AUGE, NY 1 1788 (631) 435-6 000, FAX ( 631) 273-3123 Copyright © 20 07 SMSC or its subsidiari es. All rights reserved. Circuit dia[...]

  • Page 3

    Integrated USB 2.0 Compatible 3-Port Hub Datasheet SMSC USB2503/USB2503A 3 Revision 2.3 (08-27-07) DA T ASHEET T able of Content s Chapter 1 General Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 1.1 OEM Selectable Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .[...]

  • Page 4

    Integrated USB 2.0 Compatible 3-Port Hub Datasheet Revision 2.3 (08-27-07) 4 SMSC USB2503/USB2503A DA T ASHEET List of Figures Figure 3.1 3-Port 48-Pin QFN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 Figure 4.1 3-Port Block Diagram . . . . . . . . . . . . . . . . . . . . . . [...]

  • Page 5

    Integrated USB 2.0 Compatible 3-Port Hub Datasheet SMSC USB2503/USB2503A 5 Revision 2.3 (08-27-07) DA T ASHEET List of T ables Table 4. 1 3-Port Hub Pin Descriptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 Table 4.2 SMBus or EEPROM Interfac e Behavior . . . . . . . . . . . . . . . . . [...]

  • Page 6

    Integrated USB 2.0 Compatible 3-Port Hub Datasheet Revision 2.3 (08-27-07) 6 SMSC USB2503/USB2503A DA T ASHEET Chapter 1 General Description The SMSC 3-Port Hub is fully complian t with th e USB 2.0 S pecification and will attach to a USB host as a Full-S peed Hub or as a Full-/High-Speed Hub. The 3-Port Hub supports Low-S peed, Full-S peed, and Hi[...]

  • Page 7

    Integrated USB 2.0 Compatible 3-Port Hub Datasheet SMSC USB2503/USB2503A 7 Revision 2.3 (08-27-07) DA T ASHEET Chapter 2 Pin T able 3-Port T able 2.1 3-Port Pin T able UPSTREAM USB 2.0 INTERFACE (3-PINS) USBDP0 USBDN0 VBUS_DET 3-PORT USB INTERF ACE (18-PINS) USBDP1 USBDN1 USBDP2 USBDN2 USBDP3 USBDN3 GR1/ NON_REM0 GR2/ NON_REM1 GR3/ PRT_DIS0 PRTPWR1[...]

  • Page 8

    Integrated USB 2.0 Compatible 3-Port Hub Datasheet Revision 2.3 (08-27-07) 8 SMSC USB2503/USB2503A DA T ASHEET Chapter 3 Pin Configuration 3-Port Hub Figure 3.1 3-Port 48-Pin QFN Thermal Slug (must be connected to VSS) SMSC USB2503 & USB2503A (Top View QFN-48) Indicates pins on the bottom of the device. VDDA33 1 USBDP0 2 USBDN0 3 VSS 4 USBDN1 5[...]

  • Page 9

    Integrated USB 2.0 Compatible 3-Port Hub Datasheet SMSC USB2503/USB2503A 9 Revision 2.3 (08-27-07) DA T ASHEET Chapter 4 3-Port Hub Block Diagram Figure 4.1 3-Port Bloc k Diagram T able 4.1 3-Port Hub Pin Descript ions NAME SYMBOL T YPE FUNCTION UPSTREAM USB 2.0 INTERF ACE USB Bus Data USBDN0 USBDP0 IO-U These pins connect to the U SB bus data sign[...]

  • Page 10

    Integrated USB 2.0 Compatible 3-Port Hub Datasheet Revision 2.3 (08-27-07) 10 SMSC USB2503/USB2503A DA T ASHEET 3-PORT USB 2.0 HUB INTERF ACE High-S peed USB Data USBDN[3:1] USBDP[3:1] IO-U These pins connect to the downst ream USB peripheral devices attached to the Hub’s ports. USB Power Enable PRTPWR [3:1] O12 Ena bles power to USB perip heral [...]

  • Page 11

    Integrated USB 2.0 Compatible 3-Port Hub Datasheet SMSC USB2503/USB2503A 1 1 Revision 2.3 (08-27-07) DA T ASHEET Port Power Polarity strapping. PRTPWR_POL I/O12 Port Power Polarity strapping determinat ion for the active signal polarity of the PRTPWR[3 :1] pins. While RESET_N is asse rted, the logic state of this pin will (though the use of interna[...]

  • Page 12

    Integrated USB 2.0 Compatible 3-Port Hub Datasheet Revision 2.3 (08-27-07) 12 SMSC USB2503/USB2503A DA T ASHEET Crystal Output XT AL2 OCLKx 24MHz Crystal This is the other t erminal of the crystal, or left unconnected when an ex ternal clock source is used to drive XT AL1/ CLKIN. It must not b e used to drive any external circuitr y other than the [...]

  • Page 13

    Integrated USB 2.0 Compatible 3-Port Hub Datasheet SMSC USB2503/USB2503A 13 Revision 2.3 (08-27-07) DA T ASHEET VDD3P3 CORE PLL VDD33CR +3.3V I/O and C ore power . VSS VSS Ground. T able 4.5 Buffer T ype Descriptions BUFFER DESCRIPTION I Input. IPD Input, with a weak Internal pull-do wn. IPU Input, with a weak Internal pull-up . IS Input with Schmi[...]

  • Page 14

    Integrated USB 2.0 Compatible 3-Port Hub Datasheet Revision 2.3 (08-27-07) 14 SMSC USB2503/USB2503A DA T ASHEET Chapter 5 Functional Block Description 5.1 3-Port Hub SMSC’s USB 2.0 3-Port Hub is fully specification co mpliant to the Universal Serial Bus S pecificati on Revision 2.0 April 27,2000 (12/ 7/2000 and 5/28/2002 Errata). Please re ferenc[...]

  • Page 15

    Integrated USB 2.0 Compatible 3-Port Hub Datasheet SMSC USB2503/USB2503A 15 Revision 2.3 (08-27-07) DA T ASHEET 5.1.1.5 Port Indicators Controls the use of LED indicator for Port st atus information. See Section 1 1.5.3 of the USB 2.0 S pecification f or additional details. This field is set by the OEM using either the SMBus o r EEPROM interface op[...]

  • Page 16

    Integrated USB 2.0 Compatible 3-Port Hub Datasheet Revision 2.3 (08-27-07) 16 SMSC USB2503/USB2503A DA T ASHEET This field is set by the OEM using either the SMBus or EEPROM interface options. When using the internal default option, the NON_ REM[1:0] pins will designate t he appropriate ports as being non- removable. 5.1.1.13 Self-Powered Port DISA[...]

  • Page 17

    Integrated USB 2.0 Compatible 3-Port Hub Datasheet SMSC USB2503/USB2503A 17 Revision 2.3 (08-27-07) DA T ASHEET 5.1.1.20 Bus-Powered Hub Controller Current When in Bus-Powered configuration, Maximum curr ent requirements of the Hub Controller in 2mA increments. This field is set by the OEM using either the SMBus o r EEPROM interface options. 5.1.1.[...]

  • Page 18

    Integrated USB 2.0 Compatible 3-Port Hub Datasheet Revision 2.3 (08-27-07) 18 SMSC USB2503/USB2503A DA T ASHEET 5.2.1.3 I2C EEPRO M Slave Address Slave address is 1010000. Note: 10-bit add ressing is NOT support ed. 5.2.2 In-Circuit EEPROM Programming The EEPROM can be programmed via A T E by pullin g RESET_N low (which tri-states the Hub’s EEPRO[...]

  • Page 19

    Integrated USB 2.0 Compatible 3-Port Hub Datasheet SMSC USB2503/USB2503A 19 Revision 2.3 (08-27-07) DA T ASHEET 5.2.3.1 EEPROM Offset 1:0(h) - V endor ID 5.2.3.2 EEPROM Offset 3:2(h) - Product ID 5.2.3.3 EEPROM Offset 5:4(h) - Device ID 5.2.3.4 EEPROM Offset 6(h) - CONFIG_BYTE_1 BIT NUMBER BIT NAME DESCRIPTION 15:8 VID_MSB Most Signi ficant Byte of[...]

  • Page 20

    Integrated USB 2.0 Compatible 3-Port Hub Datasheet Revision 2.3 (08-27-07) 20 SMSC USB2503/USB2503A DA T ASHEET 5.2.3.5 EEPROM Offset 7(h) - CONFIG_BYTE_2 3 EOP_DISABLE EOP Disable: Disabl es EOP generation at EOF1 when no downstream directed traffic is in progress. 0 = EOP generati on at EOF1 is enabl ed. 1 = EOP generati on at EOF1 is di sabled, [...]

  • Page 21

    Integrated USB 2.0 Compatible 3-Port Hub Datasheet SMSC USB2503/USB2503A 21 Revision 2.3 (08-27-07) DA T ASHEET 5.2.3.6 EEPROM Offset 8(h) - Non-Removable Device 5.2.3.7 EEPROM Offset 9(h) - Port Disable For Self Powered Operation 5.2.3.8 EEPROM Offs et A(h) - Port Disable For Bus Powered Operation BIT NUMBER BIT NAME DESCRIPTION 7:0 NR_DEVICE Non-[...]

  • Page 22

    Integrated USB 2.0 Compatible 3-Port Hub Datasheet Revision 2.3 (08-27-07) 22 SMSC USB2503/USB2503A DA T ASHEET 5.2.3.9 EEPROM Offs et B(h) - Max Power For Self Powered Operation 5.2.3.10 EEPROM Offs et C(h) - Max Power For Bus Powered Operation 5.2.3.1 1 EEPROM Offset D(h) - Hub Controller Max Current For Self Powered Operation BIT NUMBER BIT NAME[...]

  • Page 23

    Integrated USB 2.0 Compatible 3-Port Hub Datasheet SMSC USB2503/USB2503A 23 Revision 2.3 (08-27-07) DA T ASHEET 5.2.3.12 EEPROM Offs et E(h) - Hub Controller Max Current For Bus Powered Operation 5.2.3.13 EEPROM Of fset F(h) - Power-On Time 5.3 SMBus Slave Interface Instead of loading User-Defi ned Descriptor data from an external EEPROM, th e SMSC[...]

  • Page 24

    Integrated USB 2.0 Compatible 3-Port Hub Datasheet Revision 2.3 (08-27-07) 24 SMSC USB2503/USB2503A DA T ASHEET 5.3.1.1 Byte Protocols When using the Hub SMBus Interface for byte transfers, a write will always consist of the SM Bus Interface Slave Address byt e, followed by the I nternal Address Regi ster byte, then the d ata byte. The normal read [...]

  • Page 25

    Integrated USB 2.0 Compatible 3-Port Hub Datasheet SMSC USB2503/USB2503A 25 Revision 2.3 (08-27-07) DA T ASHEET 5.3.4 Slave Device Time-Out According to the SMBus S pecificatio n, V1.0 devices in a transfer can abort the transfer i n progress and release the bus when any single clock low interval exceeds 25ms (T TIMEOUT , MIN ). Devices that have d[...]

  • Page 26

    Integrated USB 2.0 Compatible 3-Port Hub Datasheet Revision 2.3 (08-27-07) 26 SMSC USB2503/USB2503A DA T ASHEET 5.3.9.1 Register 00h: S tatus/Command ( Reset = 0x00) 5.3.9.2 Register 01h: V endor ID (LSB) (Reset = 0x00) 0Ch R/W Max Power (Self) MAXPS 7 6 5 4 3 2 1 0 0Dh R/W Max Power (Bus) MAXPB 7 6 5 4 3 2 1 0 0Eh R/W Hub Controller Max Current (S[...]

  • Page 27

    Integrated USB 2.0 Compatible 3-Port Hub Datasheet SMSC USB2503/USB2503A 27 Revision 2.3 (08-27-07) DA T ASHEET 5.3.9.3 Register 02h: V endor ID (MSB) (Reset = 0x00 ) 5.3.9.4 Register 03h: Product ID (LSB) (Reset = 0x00) 5.3.9.5 Register 04h: Product ID (MSB) (Reset = 0x00) 5.3.9.6 Register 05h: Device ID (LSB) (Reset = 0x00) 5.3.9.7 Register 06h: [...]

  • Page 28

    Integrated USB 2.0 Compatible 3-Port Hub Datasheet Revision 2.3 (08-27-07) 28 SMSC USB2503/USB2503A DA T ASHEET 5.3.9.9 Register 08h: Co nfiguration Dat a Byte 2 (Reset = 0x00) 5 HS_DISABLE High S peed Disa ble: Disables the capability to attach as either a High/Full- speed device, and forces attachment as Full-speed only i.e. (no High -S peed supp[...]

  • Page 29

    Integrated USB 2.0 Compatible 3-Port Hub Datasheet SMSC USB2503/USB2503A 29 Revision 2.3 (08-27-07) DA T ASHEET 5.3.9.10 Register 09h: Non- Remo vable Device (Reset = 0x00) 5.3.9.1 1 Register 0Ah: Po rt Disable For Self Powered Operation (Rese t = 0x00) 5.3.9.12 Register 0Bh: Port Disable For Bus Powered Opera tion (Reset = 0x00) 5.3.9.13 Register [...]

  • Page 30

    Integrated USB 2.0 Compatible 3-Port Hub Datasheet Revision 2.3 (08-27-07) 30 SMSC USB2503/USB2503A DA T ASHEET 5.3.9.14 Register 0Dh: Max Power For Bus Powered Operation (Re set = 0x00) 5.3.9.15 Register 0Eh: Hub Controller Max Curr ent For Self Powered Operation (Reset = 0x 00) 5.3.9.16 Register 0Fh: Hub Controller Max Cu rrent For Bus Powered Op[...]

  • Page 31

    Integrated USB 2.0 Compatible 3-Port Hub Datasheet SMSC USB2503/USB2503A 31 Revision 2.3 (08-27-07) DA T ASHEET 5.3.9.17 Register 10h: Power-On Time (Res et = 0x00) 5.3.9.18 Undefi ned Registe rs The registers shown in Ta b l e 5 . 4 are the defined registers i n the Hub. Reads to undef ined registers return 00h. Writes to undefined registers have [...]

  • Page 32

    Integrated USB 2.0 Compatible 3-Port Hub Datasheet Revision 2.3 (08-27-07) 32 SMSC USB2503/USB2503A DA T ASHEET Figure 5.1 LED Strappi ng Option 5.6 Reset There are two different resets th at the Hub experiences. One is a hardware reset (via the RESET_N pin) and the second is a USB Bus Reset. 5.6.1 External Hardware RESET_N A valid hardware reset i[...]

  • Page 33

    Integrated USB 2.0 Compatible 3-Port Hub Datasheet SMSC USB2503/USB2503A 33 Revision 2.3 (08-27-07) DA T ASHEET 5.6.1.1 RESET_N for St rappin g Option Configuration Figure 5.2 Reset_N Timing fo r Default/Stra p O ption Mode Notes:  When in Bus-Powered mode, the Hub and its associated circuitry mu st not consume more than 100mA from the upstream [...]

  • Page 34

    Integrated USB 2.0 Compatible 3-Port Hub Datasheet Revision 2.3 (08-27-07) 34 SMSC USB2503/USB2503A DA T ASHEET 5.6.1.2 RESET_N for EEPROM Configuration Figure 5.3 Reset_N Ti ming for EEPROM Mode Notes:  When in Bus-Powered mode, the Hub and its associated circuitry mu st not consume more than 100mA from the upstream USB power source during t4+t[...]

  • Page 35

    Integrated USB 2.0 Compatible 3-Port Hub Datasheet SMSC USB2503/USB2503A 35 Revision 2.3 (08-27-07) DA T ASHEET 5.6.1.3 RESET_N for SMBus Slave Configuration Figure 5.4 Reset_N Timing for SMBus Mode Notes:  For Bus-Powered conf igurations, t he 99.5ms (MAX) is requi red, and the Hu b and its associated circuitry must n ot consume more than 100mA[...]

  • Page 36

    Integrated USB 2.0 Compatible 3-Port Hub Datasheet Revision 2.3 (08-27-07) 36 SMSC USB2503/USB2503A DA T ASHEET 5. Moves device from suspended to active (if suspended). 6. Complies with Section 1 1.10 of the USB 2.0 S pecificati on for behavior after completion of the reset sequence. The Host then configu res the Hub and the Hub’s downstream port[...]

  • Page 37

    Integrated USB 2.0 Compatible 3-Port Hub Datasheet SMSC USB2503/USB2503A 37 Revision 2.3 (08-27-07) DA T ASHEET Chapter 6 XNOR T est XNOR continuity tests all signal pin s on the Hub (every pin except for NC, XT AL1/CLKIN, XT AL2, A TEST/REG_EN, RBIAS, TEST1, Power , and Gro und). This functionality is enable d by driving TEST1 and CFG_SEL[1] high,[...]

  • Page 38

    Integrated USB 2.0 Compatible 3-Port Hub Datasheet Revision 2.3 (08-27-07) 38 SMSC USB2503/USB2503A DA T ASHEET Chapter 7 DC Parameters 7.1 Maximum Guaranteed Ratings Note: S tresses above th e specified parameters could cause permanen t damage to the devi ce. This is a stress rating only and functional operation of the device at any condition abov[...]

  • Page 39

    Integrated USB 2.0 Compatible 3-Port Hub Datasheet SMSC USB2503/USB2503A 39 Revision 2.3 (08-27-07) DA T ASHEET 7.2 Recommended Operating Conditions PARAMETER SYMBOL MIN MAX UNITS COMMENTS Operating T e mperature T A 07 0 ° C 1.8V supply voltage V DDA18PLL V DD18 1.71 1.98 V 3.3V supply voltage V DDA 33 V DDA33PLL V DD33CR 3.0 3.6 V V oltage on an[...]

  • Page 40

    Integrated USB 2.0 Compatible 3-Port Hub Datasheet Revision 2.3 (08-27-07) 40 SMSC USB2503/USB2503A DA T ASHEET ICLK Input Buffe r Low Input Level High Input Leve l Input Leakage Hysteresis V ILCK V IHCK I IL V HYSC 2.0 -10 50 0.8 +10 100 V V uA mV TTL Levels V IN = 0 to V DD33 CR O12 and I/O12 Type Buffe r Low Output Level High Output Leve l Outpu[...]

  • Page 41

    Integrated USB 2.0 Compatible 3-Port Hub Datasheet SMSC USB2503/USB2503A 41 Revision 2.3 (08-27-07) DA T ASHEET Notes: 1. Output leakage i s measured with t he current pins in h igh impedance. 2. See USB 2.0 Specification for USB DC electrical characteristics. 3. RBIAS is a 3.3V tolerant analog pin. CAP ACIT ANCE T A = 25°C; fc = 1MHz; V DD33C R =[...]

  • Page 42

    Integrated USB 2.0 Compatible 3-Port Hub Datasheet Revision 2.3 (08-27-07) 42 SMSC USB2503/USB2503A DA T ASHEET Chapter 8 AC S pecifications 8.1 Oscillator/Clock Crystal: Parallel Resonant, Funda mental Mode, 24 MHz ± 100p pm. External Clock: 50% Duty cycle ± 1 0 % , 2 4 M H z ± 100ppm, Jitter < 100 ps r m s. 8.1.1 SMBus Interface: The SMSC H[...]

  • Page 43

    Integrated USB 2.0 Compatible 3-Port Hub Datasheet Revision 2.3 (08-27-07) 43 SMSC USB2503/USB2503A DA T ASHEET Chapter 9 Package Outline Figure 9.1 48 Pin QFN Packag e Outline (7x7 mm body - 0.5 m m pitch) Notes: 1. Controlling Unit: millimeter . 2. Dimension b applie s to plated termina ls and is measured between 0.15mm and 0.30mm from the termin[...]