SLLS372I March   2000  – March 2017 TUSB2036

PRODUCTION DATA.  

  1. 1 Features
  2. 2 Applications
  3. 3 Description
  4. 4 Revision History
  5. 5 Description (Continued)
  6. 6 Pin Configuration and Functions
  7. 7 Specifications
    1. 7.1 Absolute Maximum Ratings
    2. 7.2 ESD Ratings
    3. 7.3 Recommended Operating Conditions
    4. 7.4 Thermal Information
    5. 7.5 Electrical Characteristics
    6. 7.6 Differential Driver Switching Characteristics (Full Speed Mode)
    7. 7.7 Differential Driver Switching Characteristics (Low Speed Mode)
    8. 7.8 Typical Characteristics
  8. 8 Detailed Description
    1. 8.1 Overview
    2. 8.2 Functional Block Diagram
    3. 8.3 Feature Description
      1. 8.3.1 USB Power Management
      2. 8.3.2 Clock Generation
    4. 8.4 Device Functional Modes
      1. 8.4.1 2-3 Programmable Downstream Ports
      2. 8.4.2 Vendor ID and Product ID With External Serial EEPROM
    5. 8.5 Programming
      1. 8.5.1 Programming the EEPROM
  9. 9 Application and Implementation
    1. 9.1 Application Information
    2. 9.2 Typical Application
      1. 9.2.1 Design Requirements
      2. 9.2.2 Detailed Design Procedure
      3. 9.2.3 Application Curve
  10. 10Power Supply Recommendations
    1. 10.1 TUSB2036 Power Supply
    2. 10.2 Downstream Port Power
  11. 11Layout
    1. 11.1 Layout Guidelines
      1. 11.1.1 Placement
      2. 11.1.2 Differential Pairs
      3. 11.1.3 Ground
    2. 11.2 Layout Example
  12. 12Device and Documentation Support
    1. 12.1 Receiving Notification of Documentation Updates
    2. 12.2 Community Resources
    3. 12.3 Trademarks
    4. 12.4 Electrostatic Discharge Caution
    5. 12.5 Glossary
  13. 13Mechanical, Packaging, and Orderable Information

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订购信息

1 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)

2 Applications

  • Computer Systems
  • Docking Stations

3 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. The downstream ports support both full-speed and low-speed devices by automatically setting the slew rate according to the speed of the device attached to the ports. The configuration of the BUSPWR pin selects either the bus-powered or the self-powered mode. The introduction of the DP0 pullup resistor disable pin, DP0PUR, makes it much easier to implement an onboard bus/self-power dynamic-switching circuitry. With the new function pin, the end-equipment vendor can reduce the total board cost while adding additional product value.

Device Information(1)

PART NUMBER PACKAGE BODY SIZE (NOM)
TUSB2036 HLQFP (32) 7.00 mm × 7.00 mm
  1. For all available packages, see the orderable addendum at the end of the datasheet.

USB-Tiered Configuration Example

TUSB2036 keygraphic_slls372.gif