TUSB2036_16 Datasheet, PDF (1/27 Pages) Texas Instruments – 2- or 3-Port Hub for the Universal Serial Bus

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TUSB2036
SLLS372H – MARCH 2000 – REVISED JANUARY 2016
TUSB2036 2- or 3-Port Hub for the Universal Serial Bus With Optional Serial EEPROM
Interface
1 Features
•1 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
1
An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,
intellectual property matters and other important disclaimers. PRODUCTION DATA.