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SMSC USB2524 DATASHEET Revision 1.91 (08-22-07)

Datasheet

PRODUCT FEATURES

USB2524

USB MultiSwitch

Hub

 USB 2.0 Compatible 4-Port Hub with two upstream

host port connections

— Provides electronic reconfiguration and re-assignment

of any of its 4 downstream ports to either of two

upstream host ports (“on-the-fly”).

— Allows multiple USB hosts to share peripherals and

enables a user to dynamically assign host ownership.

– Embedded Mode - 8 (predefined, OEM

programmable) configurations for port

assignment are selectable via three external

control signals.

– Peripheral Mode - Dedicated select pin for

every downstream port (total of 4), selectable

edge or level triggered in order to support a

wide range of possible switch configurations

and styles.

— Each host has a dedicated Single Transaction

Translator (Single-TT) for supporting FS/LS devices, or

can also operate in Multi-TT mode where each

downstream port has a dedicated Transaction

Translator.

 Downstream ports can be disabled or defined as non-

removable

 Switching hub can be configured as compound

device for support of ‘embedded’ USB peripherals

 Multiple LED modes for maximum implementation

flexibility

— USB Mode - 2 Single-color LEDs for each downstream

port (total of 8 LEDs).

— Host Ownership Mode - 8 Single-Color LEDs indicate

which upstream host each of the downstream ports are

assigned to.

— Host Ownership & Port Speed Mode - 8 Dual-Color

LEDs are used to indicate which upstream host each of

the downstream ports are assigned to, while

simultaneously indicating downstream port connection

speed.

 Enhanced configuration options available through

either a Single Serial I

C EEPROM, or SMBus Slave

Port

— VID/PID/DID

— Port Configuration

— String Descriptors (each can support a maximum length

of 31 characters)

– Custom Manufacturer String

– Custom Product String

– Custom Serial String

— Assignment of downstream ports to upstream hosts

— Switching mechanism selection

 Hardware Strapping options allow for configuration

without an external EEPROM or SMBus Host

— Default VID/PID/DID, allows functionality when

configuration EEPROM is absent

 Complete USB Specification 2.0 Compatibility

— Includes USB 2.0 Hi-Speed Transceivers

— High-Speed (480Mbits/s), Full-Speed (12Mbits/s) and

Low-Speed (1.5Mbits/s) compatible

— Full power management with choice of Individual or

Ganged power control

 On-Board 24MHz Crystal Driver Circuit or 24 MHz

external clock driver

 Internal PLL for 480MHz USB 2.0 Sampling

 Internal 1.8V Linear Voltage Regulator

 Integrated USB termination and Pull-up/Pull-down

resistors

 Internal Short Circuit protection of USB differential

signal pins

 1.8 Volt Low Power Core Operation

 3.3 Volt I/O with 5V Input Tolerance

 56-Pin QFN Lead-free RoHS Compliant Package

1 2 3 4 5 6 ... 56 57

Podsumowanie treści

Strona 1 - USB MultiSwitch

SMSC USB2524 DATASHEET Revision 1.91 (08-22-07) DatasheetPRODUCT FEATURESUSB2524USB MultiSwitchTM Hub  USB 2.0 Compatible 4-Port Hub with two upstre

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USB MultiSwitchTM HubDatasheetRevision 1.91 (08-22-07) 10 SMSC USB2524DATASHEET Chapter 2 Pin LayoutTable 2.1 USB2524 56-Pin QFN Pin Configuration Ta

Strona 3 - Table of Contents

USB MultiSwitchTM HubDatasheetSMSC USB2524 11 Revision 1.91 (08-22-07)DATASHEET Chapter 3 Pin ConfigurationFigure 3.1 USB2524 QFN-56thermal slug conne

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USB MultiSwitchTM HubDatasheetRevision 1.91 (08-22-07) 12 SMSC USB2524DATASHEET Chapter 4 Switching Hub Pin DescriptionsTable 4.1 Switching Hub Pin D

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USB MultiSwitchTM HubDatasheetSMSC USB2524 13 Revision 1.91 (08-22-07)DATASHEET Port [2:1] Green LED&Port Non-Removable strapping optionLED_A[2:1]

Strona 6 - List of Figures

USB MultiSwitchTM HubDatasheetRevision 1.91 (08-22-07) 14 SMSC USB2524DATASHEET Assign Downstream Ports to Upstream Host PortsPRT_ASSIGN[3:0]I Port As

Strona 7 - List of Tables

USB MultiSwitchTM HubDatasheetSMSC USB2524 15 Revision 1.91 (08-22-07)DATASHEET 1 0 0 Internal Default Configuration PRT_ASSIGN[3:0] = Peripheral Mod

Strona 8 - Chapter 1 General Description

USB MultiSwitchTM HubDatasheetRevision 1.91 (08-22-07) 16 SMSC USB2524DATASHEET VDD PLL VDDPLL18 +1.8V Filtered analog power for internal PLL.This pin

Strona 9 - 1.1 OEM Selectable Features

SMSC USB2524 17 Revision 1.91 (08-22-07)DATASHEETChapter 5 Switching Hub Block DiagramFigure 5.1 USB2524 Switching Hub Block DiagramUpstreamVBUSUpstr

Strona 10 - Chapter 2 Pin Layout

USB MultiSwitchTM HubDatasheetRevision 1.91 (08-22-07) 18 SMSC USB2524DATASHEET Chapter 6 Assigning PortsThere are two different (OEM selectable) meth

Strona 11 - Chapter 3 Pin Configuration

USB MultiSwitchTM HubDatasheetSMSC USB2524 19 Revision 1.91 (08-22-07)DATASHEET Note 6.4 X = Don’t Care6.1.2 Peripheral Mode: Level TriggeredIn Periph

Strona 12 - DATASHEET

ORDER NUMBER(S):USB2524-ABZJ for 56-pin QFN Lead-Free RoHS Compliant PackageUSB MultiSwitchTM HubDatasheetRevision 1.91 (08-22-07) 2 SMSC USB2524DATAS

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USB MultiSwitchTM HubDatasheetRevision 1.91 (08-22-07) 20 SMSC USB2524DATASHEET Chapter 7 Configuration Options7.1 Switching Hub Configuration Optio

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USB MultiSwitchTM HubDatasheetSMSC USB2524 21 Revision 1.91 (08-22-07)DATASHEET 0Ah R/W Port Disable (Self) PDS 00h0Bh R/W Port Disable (Bus) PDB 00h0

Strona 15 - Ω) capacitor to VSS

USB MultiSwitchTM HubDatasheetRevision 1.91 (08-22-07) 22 SMSC USB2524DATASHEET 7.1.4.1 Register 00h: Vendor ID (LSB) (Reset = 0x00)7.1.4.2 Register 0

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USB MultiSwitchTM HubDatasheetSMSC USB2524 23 Revision 1.91 (08-22-07)DATASHEET 7.1.4.7 Register 06h: CONFIG_BYTE_1 (Reset = 0x00)BIT NUMBER BIT NAME

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USB MultiSwitchTM HubDatasheetRevision 1.91 (08-22-07) 24 SMSC USB2524DATASHEET 7.1.4.8 Register 07h: Configuration Data Byte 2 (Reset = 0x00)7.1.4.9

Strona 18 - Chapter 6 Assigning Ports

USB MultiSwitchTM HubDatasheetSMSC USB2524 25 Revision 1.91 (08-22-07)DATASHEET 7.1.4.10 Register 09h: Non-Removable Device (Reset = 0x00)5 PRT_ASSIGN

Strona 19

USB MultiSwitchTM HubDatasheetRevision 1.91 (08-22-07) 26 SMSC USB2524DATASHEET 7.1.4.11 Register 0Ah: Port Disable For Self Powered Operation (Reset

Strona 20 - 7.1.2 VBus Detect

USB MultiSwitchTM HubDatasheetSMSC USB2524 27 Revision 1.91 (08-22-07)DATASHEET 7.1.4.14 Register 0Dh: Max Power For Bus Powered Operation (Reset = 0x

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USB MultiSwitchTM HubDatasheetRevision 1.91 (08-22-07) 28 SMSC USB2524DATASHEET 7.1.4.20 Register 13h: Manufacturer String Length (Reset = 0x00)7.1.4.

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USB MultiSwitchTM HubDatasheetSMSC USB2524 29 Revision 1.91 (08-22-07)DATASHEET 7.1.4.25 Register 92h-CFh: Serial String (Reset = 0x00)7.1.4.26 Regist

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USB MultiSwitchTM HubDatasheetSMSC USB2524 3 Revision 1.91 (08-22-07)DATASHEET Table of ContentsChapter 1 General Description. . . . . . . . . . . . .

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USB MultiSwitchTM HubDatasheetRevision 1.91 (08-22-07) 30 SMSC USB2524DATASHEET 7.1.4.28 Register D2h: Port Assign Interface Configuration 0B (Reset =

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USB MultiSwitchTM HubDatasheetSMSC USB2524 31 Revision 1.91 (08-22-07)DATASHEET 7.1.4.32 Register D6h: Port Assign Interface Configuration 1B (Reset =

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USB MultiSwitchTM HubDatasheetRevision 1.91 (08-22-07) 32 SMSC USB2524DATASHEET 7.1.4.36 Register DAh: Port Assign Interface Configuration 2B (Reset =

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USB MultiSwitchTM HubDatasheetSMSC USB2524 33 Revision 1.91 (08-22-07)DATASHEET 7.1.4.40 Register DEh: Port Assign Interface Configuration 3B (Reset =

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USB MultiSwitchTM HubDatasheetRevision 1.91 (08-22-07) 34 SMSC USB2524DATASHEET 7.1.4.44 Register E2h: Port Assign Interface Configuration 4B (Reset =

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USB MultiSwitchTM HubDatasheetSMSC USB2524 35 Revision 1.91 (08-22-07)DATASHEET 7.1.4.48 Register E6h: Port Assign Interface Configuration 5B (Reset =

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USB MultiSwitchTM HubDatasheetRevision 1.91 (08-22-07) 36 SMSC USB2524DATASHEET 7.1.4.52 Register EAh: Port Assign Interface Configuration 6B (Reset =

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USB MultiSwitchTM HubDatasheetSMSC USB2524 37 Revision 1.91 (08-22-07)DATASHEET 7.1.4.56 Register EEh: Port Assign Interface Configuration 7B (Reset =

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USB MultiSwitchTM HubDatasheetRevision 1.91 (08-22-07) 38 SMSC USB2524DATASHEET 7.1.4.60 Register F2h: Port Assignment 3 & 4 (Reset = 0x00)7.1.4.6

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USB MultiSwitchTM HubDatasheetSMSC USB2524 39 Revision 1.91 (08-22-07)DATASHEET 7.1.4.64 Register FFh: Status/Command (Reset = 0x00)BIT NUMBER BIT NAM

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USB MultiSwitchTM HubDatasheetRevision 1.91 (08-22-07) 4 SMSC USB2524DATASHEET 7.1.4.28 Register D2h: Port Assign Interface Configuration 0B (Reset =

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USB MultiSwitchTM HubDatasheetRevision 1.91 (08-22-07) 40 SMSC USB2524DATASHEET 7.2 EEPROM InterfaceThe SMSC Hub can be configured via a 2-wire (I2C

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USB MultiSwitchTM HubDatasheetSMSC USB2524 41 Revision 1.91 (08-22-07)DATASHEET 7.3 SMBus Slave InterfaceInstead of loading User-Defined Descriptor

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USB MultiSwitchTM HubDatasheetRevision 1.91 (08-22-07) 42 SMSC USB2524DATASHEET A Block Read differs from a block write in that the repeated start con

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USB MultiSwitchTM HubDatasheetSMSC USB2524 43 Revision 1.91 (08-22-07)DATASHEET 7.3.7 Bus Reset SequenceThe SMBus Slave Interface resets and returns t

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USB MultiSwitchTM HubDatasheetRevision 1.91 (08-22-07) 44 SMSC USB2524DATASHEET Chapter 8 LED Interface DescriptionThe USB2524 supports 3 different (m

Strona 40 - 7.2 EEPROM Interface

USB MultiSwitchTM HubDatasheetSMSC USB2524 45 Revision 1.91 (08-22-07)DATASHEET 8.3 Host Ownership and Port Speed LED Indication:All 8 LED pins are

Strona 41 - 7.3 SMBus Slave Interface

USB MultiSwitchTM HubDatasheetRevision 1.91 (08-22-07) 46 SMSC USB2524DATASHEET The assignment is as follows:LED_A1_N = Port 1 Owned By Host ALED_B1_N

Strona 42 - Datasheet

USB MultiSwitchTM HubDatasheetSMSC USB2524 47 Revision 1.91 (08-22-07)DATASHEET Chapter 9 Reset9.1 ResetThere are two different resets that the Hub

Strona 43 - 7.5 Default Configuration

USB MultiSwitchTM HubDatasheetRevision 1.91 (08-22-07) 48 SMSC USB2524DATASHEET 9.1.1.1 RESET_N for Strapping Option ConfigurationFigure 9.1 Reset_N T

Strona 44 - 8.1 USB Mode:

USB MultiSwitchTM HubDatasheetSMSC USB2524 49 Revision 1.91 (08-22-07)DATASHEET 9.1.1.2 RESET_N for EEPROM ConfigurationFigure 9.2 Reset_N Timing for

Strona 45 - Green LED

USB MultiSwitchTM HubDatasheetSMSC USB2524 5 Revision 1.91 (08-22-07)DATASHEET 7.4 Default Strapping Option . . . . . . . . . . . . . . . . . . . . .

Strona 46

USB MultiSwitchTM HubDatasheetRevision 1.91 (08-22-07) 50 SMSC USB2524DATASHEET 9.1.1.3 RESET_N for SMBus Slave ConfigurationFigure 9.3 Reset_N Timing

Strona 47 - Chapter 9 Reset

USB MultiSwitchTM HubDatasheetSMSC USB2524 51 Revision 1.91 (08-22-07)DATASHEET  Complies with Section 11.10 of the USB 2.0 Specification for behavio

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USB MultiSwitchTM HubDatasheetRevision 1.91 (08-22-07) 52 SMSC USB2524DATASHEET Chapter 10 XNOR TestPlease contact your SMSC representative for a deta

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USB MultiSwitchTM HubDatasheetSMSC USB2524 53 Revision 1.91 (08-22-07)DATASHEET Chapter 11 DC Parameters11.1 Maximum Guaranteed RatingsOperating Tem

Strona 50 - 9.1.2 USB Bus Reset

USB MultiSwitchTM HubDatasheetRevision 1.91 (08-22-07) 54 SMSC USB2524DATASHEET Input Buffer with Pull-Down (IPD )Low Input LevelHigh Input LevelLow I

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USB MultiSwitchTM HubDatasheetSMSC USB2524 55 Revision 1.91 (08-22-07)DATASHEET Note 11.1 Output leakage is measured with the current pins in high imp

Strona 52 - Chapter 10 XNOR Test

USB MultiSwitchTM HubDatasheetRevision 1.91 (08-22-07) 56 SMSC USB2524DATASHEET Chapter 12 AC Specifications12.1 Oscillator/ClockCrystal: Parallel R

Strona 53 - Chapter 11 DC Parameters

USB MultiSwitchTM HubDatasheetSMSC USB2524 57 Revision 1.91 (08-22-07)DATASHEET Chapter 13 Package OutlineFigure 13.1 USB2524 56-Pin QFN Package Outli

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USB MultiSwitchTM HubDatasheetRevision 1.91 (08-22-07) 6 SMSC USB2524DATASHEET List of FiguresFigure 3.1 USB2524 QFN-56 . . . . . . . . . . . . . . .

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USB MultiSwitchTM HubDatasheetSMSC USB2524 7 Revision 1.91 (08-22-07)DATASHEET List of TablesTable 2.1 USB2524 56-Pin QFN Pin Configuration Table. . .

Strona 56 - Chapter 12 AC Specifications

USB MultiSwitchTM HubDatasheetRevision 1.91 (08-22-07) 8 SMSC USB2524DATASHEET Chapter 1 General DescriptionThe SMSC 4-Port USB 2.0 Switching Hub Cont

Strona 57 - Chapter 13 Package Outline

USB MultiSwitchTM HubDatasheetSMSC USB2524 9 Revision 1.91 (08-22-07)DATASHEET 1.1 OEM Selectable FeaturesA default configuration is available in th

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