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TUSB2046B

TUSB2046BI

www.ti.com

SLLS413I – FEBRUARY 2000 – REVISED SEPTEMBER 2013

4-PORT HUB FOR THE UNIVERSAL SERIAL BUS

WITH OPTIONAL SERIAL EEPROM INTERFACE

Check for Samples: TUSB2046B, TUSB2046BI

1

FEATURES

•

Fully Compliant With the USB Specification as

a Full-Speed Hub: TID #30220231

•

Terminal Pitch or QFN Package with a 0.5-mm

Terminal Pitch

•

3.3-V Low Power ASIC Logic

•

Integrated USB Transceivers

•

State Machine Implementation Requires No

Firmware Programming

•

One Upstream Port and Four Downstream

Ports

•

All Downstream Ports Support Full-Speed and

Low-Speed Operations

•

Two Power Source Modes

–

Self-Powered Mode

–

Bus-Powered Mode

•

Power Switching and Overcurrent Reporting Is

Provided Ganged or Per Port

•

Supports Suspend and Resume Operations

•

Supports Programmable Vendor ID and

Product ID With External Serial EEPROM

•

3-State EEPROM Interface Allows EEPROM

Sharing

•

Push-Pull Outputs for PWRON Eliminate the

Need for External Pullup Resistors

•

Noise Filtering on OVRCUR Provides Immunity

to Voltage Spikes

•

Package Pinout Allows 2-Layer PCB

•

Low EMI Emission Achieved by a 6-MHz

Crystal Input

•

Migrated From Proven TUSB2040 Hub

•

Lower Cost Than the TUSB2040 Hub

•

Enhanced System ESD Performance

•

No Special Driver Requirements; Works

Seamlessly With Any Operating System With

USB Stack Support

•

Supports 6-MHz Operation Through a Crystal

Input or a 48-MHz Input Clock

(1)

JEDEC descriptor S-PQFP-G for low profile quad flat pack

(LQFP).

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Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of

Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

PRODUCTION DATA information is current as of publication date.

Copyright © 2000–2013, Texas Instruments Incorporated

Products conform to specifications per the terms of the Texas

Instruments standard warranty. Production processing does not

necessarily include testing of all parameters.