TUSB2036VFG4 by Texas Instruments | Interface Misc | Avnet AMERICAS
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TUSB2036VFG4

Texas Instruments

Hub for The Universal Serial Bus 32-Pin LQFP

Manufacturer Part #: TUSB2036VFG4

Alternate Part #: TUSB2036VFG4


legend RoHS Compliant

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Information

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.

The EXTMEM\ (pin 26) enables or disables the optional EEPROM interface. When EXTMEM\ is high, the vendor and product IDs (VID and PID) use defaults, such that the message displayed during enumeration is General Purpose USB Hub.

The TUSB2036 supports both bus-powered and self-powered modes. External power-management devices, such as the TPS2044, are required to control the 5-V power source switching (on/off) to the downstream ports and to detect an overcurrent condition from the downstream ports individually or ganged.

An individually port power controlled hub switches power on or off to each downstream port as requested by the USB host. Also when an individually port power controlled hub senses an over-current event, only power to the affected downstream port will be switched off. A ganged hub switches on power to all its downstream ports when power is required to be on for any port. The power to the downstream ports is not switched off unless all ports are in a state that allows power to be removed. Also when a ganged hub senses an over-current event, power to all downstream ports will be switched off.

The logic level of the MODE pin controls the selection of a crystal input to drive an internal oscillator or an external clock source.

Key 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)
  • Technical Attributes

    Description
    Value
    Find similar Parts
    Type
    Hub for The Universal Serial Bus
    Category
    Hub for The Universal Serial Bus
    Mounting
    Surface Mount
    Lead Finish
    Gold
    Max Processing Temp
    260
    Operating Temperature
    0 to 70 °C

    ECCN / UNSPSC

    Description
    Value
    ECCN:
    EAR99
    SCHEDULE B:
    8542390000
    UNSPSC:
    32101600
    UNSPSC VERSION:
    V15.1101

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    USD    $1.99

    Factory Stock:

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  • Lead time: 6 weeks
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