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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.

TUSB2036

SLLS372I – MARCH 2000 – REVISED MARCH 2017

TUSB2036 2- or 3-Port Hub for the Universal Serial Bus With Optional Serial EEPROM

Interface

1

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