Description
●The TUSB2036 hub is a 3.3-V CMOS device that provides up to three downstream ports in compliance with the USB 2.0 specification. Because this device is implemented with a digital state machine instead of a microcontroller, no firmware programming is required.
●Fully-compliant USB transceivers are integrated into the ASIC for all upstream and downstream ports.
●Features
●• Fully Compliant With the USB Specification as a Full-Speed Hub: TID #30220242
●• Integrated USB Transceivers
●• 3.3-V Low-Power ASIC Logic
●• One Upstream Port and 2 or 3 Programmable Downstream Ports
● – Total Number of Ports (2 or 3) Selected by Input Pin
● – Total Number of Permanently Connected Ports Is Selected by 2 Input Pins
●• Two Power Source Modes
● – Self-Powered Mode
● – Bus-Powered Mode
●• All Downstream Ports Support Full-Speed and Low-Speed Operations
●• Power Switching and Overcurrent Reporting Is Provided Ganged or Per Port
●• Supports Suspend and Resume Operations
●• Suspend Status Pin Available for External Logic Power Down
●• Supports Custom 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
●• Supports 6-MHz Operation Through a Crystal Input or a 48-MHz Input Clock
●• Output Pin Available to Disable External Pullup Resister on DP0 for 3 ms After Reset or After Change on BUSPWR and Enable Easy Implementation of Onboard Bus/Self-Power Dynamic Switching Circuitry
●• No Special Driver Requirements; Works Seamlessly With Any Operating System With USB Stack Support
●• Available in 32-Pin HLQFP Package With a 0.8-mm Pin Pitch (JEDEC − S-PQFP-G For Low Profile Quad Flat Pack)
●Applications
●• Computer Systems
●• Docking Stations
