SMSC - USB2524 - USB MultiSwitch™ Hub

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USB2524

USB MultiSwitch™ Hub

Overview Description Block Diagram Ordering Download

General Features

Compliant with USB 2.0 Specification
Hub controller IC with two upstream ports and four downstream ports
MultiTRAK™ technology provides one transaction translator per port
Default configuration with pin selectable options
Four flexible downstream port switching modes
Flexible OEM configuration options
56-pin QFN Lead-Free RoHS Compliant Package

Hardware Features

Integrated 1.8V regulator
Integrated termination and pull-up/pull-down resistors
Internal short circuit protection of DP and DM lines
On-chip oscillator uses low cost 24MHz crystal
Supports individual over-current protection and power control
3.3V I/O with 5V tolerance

OEM Selectable Features

The 4-Port Hub supports several OEM selectable features:

Customize vendor ID, product ID, device ID, and product string
Port switching modes and host ownership of downstream ports
Select whether the hub is part of a compound device
(When any downstream port is permanently hardwired to a USB peripheral device, the hub is part of a compound device)
Programmable LEDs to support standard green/amber port status or port speed (HS/FS/LS)
Select the presence of a permanently hardwired USB peripheral device on a port by port basis
Configure the delay time for filtering the over-current sense inputs
Configure the delay time for turning on downstream port power
Configure the polarity of down stream port power control signals
Indicate the maximum current that the 4-port hub consumes from the USB upstream port
Indicate the maximum current required for the hub controller

Pin Selectable Options for Default Configuration

Select downstream ports as non-removable ports
Select downstream ports as disabled ports
Enable/disable downstream port LED indicators
Select downstream port power control and over-current detection on a ganged or individual basis
Select downstream port power control polarity

Although the information in this document has been checked and is believed to be accurate, no responsibility is assumed for inaccuracies. SMSC reserves the right to make changes to product descriptions and specifications at any time without notice. Contact your local SMSC sales office to obtain the latest specifications before placing your product order. The provision of this information does not convey any licenses under any patent rights or other intellectual property rights of SMSC or others. All sales are expressly conditional on your agreement to the terms and conditions of the most recently dated version of SMSC's standard Terms of Sale Agreement dated before the date of your order. Products may contain design defects or errors known as anomalies which may cause a product's functions to deviate from published specifications. Anomaly sheets are available upon request. SMSC products are not designed, intended, authorized or warranted for use in any life support or other application where product failure could cause or contribute to personal injury or severe property damage. Any and all such uses without prior written approval of an Officer of SMSC and further testing and/or modification will be fully at the risk of the customer. Copies of this document or other SMSC literature, as well as the Terms of Sale Agreement, may be obtained by visiting SMSC's website at http://www.smsc.com. SMSC and the SMSC logo are registered trademarks of Standard Microsystems Corporation ("SMSC"). Other names mentioned may be trademarks of their respective holders. All claims made herein speak as of the date of this material. The company does not undertake to update such statements.

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