TUSB2046B-Q1 Datasheet, PDF (1/22 Pages) Texas Instruments – 4-PORT HUB FOR THE UNIVERSAL SERIAL BUS WITH OPTIONAL SERIAL EEPROM INTERFACE

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4-PORT HUB FOR THE UNIVERSAL SERIAL BUS
WITH OPTIONAL SERIAL EEPROM INTERFACE
Check for Samples: TUSB2046BI-Q1
TUSB2046BI-Q1
SLLSE50 – SEPTEMBER 2010
FEATURES
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• Fully Compliant With the USB Specification as
a Full-Speed Hub: TID #30220231
• 32-Terminal LQFP ⁽¹⁾ Package With a 0.8-mm
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
• 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).
VF PACKAGE
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RHB PACKAGE
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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.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Copyright © 2010, Texas Instruments Incorporated