TUSB2036VFG4

三分之二-PORT枢纽通用串行总线，可选的串行EEPROM接口 2/3-PORT HUB FOR THE UNIVERSAL SERIAL BUS WITH OPTIONAL SERIAL EEPROM INTERFACE

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: D #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