TUSB2046B
TUSB2046B is a RoHS Compliant single chip 4-Port USB Hub from Texas Instruments
- Fully Compliant With the USB Specificationas a Full-Speed Hub: TID #30220231
- 32-Terminal LQFP Package With a 0.8-mm Terminal Pitch or QFN Package with a 0.5-mm Terminal Pitch(1)
- 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