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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.
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.
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 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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 ).
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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).
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.
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.
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.
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.
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.
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.
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