30

29

4

26

6

5

Hub Repeater

Suspend /Resume

Logic and

Frame Timer

SIE

SIE Interface

Logic

Port 1

Logic

Hub /Device

Command

Decoder

Hub

Power

Logic

OVRCUR1 - OVRCUR3

PWRON1 - PWRON3

XTAL1/CLK48

OSC/PLL

DP0

DM0

1

2

USB

Transceiver

DP1

DM1

12

11

10, 14, 18

9, 13, 17

RESET

USB

Transceiver

XTAL2

Serial

EEPROM

Interface

EXTMEM

EEDATA/GANGED

EECLK

DP2

DM2

DP3

DM3

USB

Transceiver

16

15

USB

Transceiver

20

19

Port 2

Logic

Port 3

Logic

8

BUSPWR

32

SUSPND

27

31

MODE

24

NP3

23, 22

NPINT(1- 0)

21

OCPROT/PWRSW

DP0PUR

M

U

X

1

0

Copyright © 2017, Texas Instruments Incorporated

10

TUSB2036

SLLS372I – MARCH 2000 – REVISED MARCH 2017

www.ti.com

Product Folder Links: TUSB2036

Submit Documentation Feedback

Copyright © 2000–2017, Texas Instruments Incorporated

8 Detailed Description

8.1 Overview

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.

8.2 Functional Block Diagram