USB5742
2-Port SS/HS USB Controller Hub
Highlights
• USB Hub Feature Controller IC with 2 USB 3.1
Gen 1 / USB 2.0 downstream ports
• USB-IF Battery Charger revision 1.2 support on
up & downstream ports (DCP, CDP, SDP)
• USB Link Power Management (LPM) support
• Enhanced OEM configuration options available
through either OTP or SPI ROM
• Available in 56-pin (7 x 7 mm) VQFN lead-free,
RoHS compliant package
• Commercial and industrial grade temperature
support
• Configuration Straps: Predefined configuration of
system level functions
Key Benefits
• USB 3.1 Gen 1 compliant 5 Gbps, 480 Mbps,
12 Mbps and 1.5 Mbps operation
- 5 V tolerant USB 2.0 pins
- 1.32 V tolerant USB 3.1 Gen 1 pins
- Integrated termination & pull-up/pull-down resistors
• Supports per port battery charging of most popu-
lar battery powered devices
- USB-IF Battery Charging rev. 1.2 support
(DCP, CDP, SDP)
- Apple
portable product charger emulation
- Chinese YD/T 1591-2006 charger emulation
- Chinese YD/T 1591-2009 charger emulation
- European Union universal mobile charger support
- Support for Microchip USC100x family of battery
charging controllers
- Supports additional portable devices
Target Applications
•
•
•
•
•
Standalone USB Hubs
Laptop Docks
PC Motherboards
PC Monitor Docks
Multi-function USB 3.1 Gen 1 Peripherals
• Smart port controller operation
- Firmware handling of companion port controllers
• On-chip microcontroller
- Manages I/Os, VBUS, and other signals
• 8 KB RAM, 64 KB ROM
• 8 KB One Time Programmable (OTP) ROM
- Includes on-chip charge pump
• Configuration programming via OTP ROM, SPI
ROM, or SMBus
• PortSwap
- Configurable differential intro-pair signal swapping
• PHYBoost
™
- Programmable USB transceiver drive strength for
recovering signal integrity
• VariSense
™
- Programmable USB receiver sensitivity
• Compatible with Microsoft Windows 8, 7, XP,
Apple OS X 10.4+, and Linux hub drivers
• Optimized for low-power operation and
low thermal dissipation
• Package
- 56-pin VQFN (7 x 7 mm)
• Environmental
- 3 kV HBM JESD22-A114F ESD protection
- Commercial temperature range (0°C to +70°C)
- Industrial temperature range (-40°C to +85°C)
2015-2016 Microchip Technology Inc.
DS00002016B-page 1
USB5742
TO OUR VALUED CUSTOMERS
It is our intention to provide our valued customers with the best documentation possible to ensure successful use of your Microchip
products. To this end, we will continue to improve our publications to better suit your needs. Our publications will be refined and
enhanced as new volumes and updates are introduced.
If you have any questions or comments regarding this publication, please contact the Marketing Communications Department via
E-mail at
docerrors@microchip.com.
We welcome your feedback.
Most Current Documentation
To obtain the most up-to-date version of this documentation, please register at our Worldwide Web site at:
http://www.microchip.com
You can determine the version of a data sheet by examining its literature number found on the bottom outside corner of any page.
The last character of the literature number is the version number, (e.g., DS30000000A is version A of document DS30000000).
Errata
An errata sheet, describing minor operational differences from the data sheet and recommended workarounds, may exist for cur-
rent devices. As device/documentation issues become known to us, we will publish an errata sheet. The errata will specify the
revision of silicon and revision of document to which it applies.
To determine if an errata sheet exists for a particular device, please check with one of the following:
• Microchip’s Worldwide Web site;
http://www.microchip.com
• Your local Microchip sales office (see last page)
When contacting a sales office, please specify which device, revision of silicon and data sheet (include -literature number) you are
using.
Customer Notification System
Register on our web site at
www.microchip.com
to receive the most current information on all of our products.
DS00002016B-page 2
2015-2016 Microchip Technology Inc.
USB5742
1.0 Preface ............................................................................................................................................................................................ 4
2.0 Introduction ..................................................................................................................................................................................... 6
3.0 Pin Description and Configuration .................................................................................................................................................. 8
4.0 Device Connections ...................................................................................................................................................................... 17
5.0 Modes of Operation ...................................................................................................................................................................... 19
6.0 Device Configuration ..................................................................................................................................................................... 22
7.0 Device Interfaces .......................................................................................................................................................................... 23
8.0 Functional Descriptions ................................................................................................................................................................. 24
9.0 Operational Characteristics ........................................................................................................................................................... 29
10.0 Package Information ................................................................................................................................................................... 38
2015-2016 Microchip Technology Inc.
DS00002016B-page 3
USB5742
1.0
1.1
PREFACE
General Terms
GENERAL TERMS
Description
Analog-to-Digital Converter
8 bits
Communication Device Class
Control and Status Registers
32 bits
End of Packet
Endpoint
First In First Out buffer
Full-Speed
Finite State Machine
General Purpose I/O
Hi-Speed
High Speed Over Sampling
The Hub Feature Controller, sometimes called a Hub Controller for short is the internal
processor used to enable the unique features of the USB Controller Hub. This is not to
be confused with the USB Hub Controller that is used to communicate the hub status
back to the Host during a USB session.
Inter-Integrated Circuit
Low-Speed
Least Significant Bit
Least Significant Byte
Most Significant Bit
Most Significant Byte
Not Applicable
No Connect
One Time Programmable
Printed Circuit Board
Physical Coding Sublayer
Physical Layer
Phase Lock Loop
Refers to a reserved bit field or address. Unless otherwise noted, reserved bits must
always be zero for write operations. Unless otherwise noted, values are not guaran-
teed when reading reserved bits. Unless otherwise noted, do not read or write to
reserved addresses.
Software Development Kit
System Management Bus
Universally Unique IDentifier
16 bits
TABLE 1-1:
Term
ADC
Byte
CDC
CSR
DWORD
EOP
EP
FIFO
FS
FSM
GPIO
HS
HSOS
Hub Feature Controller
I
2
C
LS
lsb
LSB
msb
MSB
N/A
NC
OTP
PCB
PCS
PHY
PLL
RESERVED
SDK
SMBus
UUID
WORD
DS00002016B-page 4
2015-2016 Microchip Technology Inc.
USB5742
1.2
1.
2.
3.
4.
5.
Reference Documents
UNICODE UTF-16LE For String Descriptors
USB Engineering Change Notice, December 29th, 2004, http://
www.usb.org
Universal Serial Bus Revision 3.1 Specification,
http://www.usb.org
Battery Charging Specification,
Revision 1.2, Dec. 07, 2010, http://www.usb.org
I
2
C-Bus Specification,
Version 1.1, http://www.nxp.com
System Management Bus Specification,
Version 1.0, http://smbus.org/specs
2015-2016 Microchip Technology Inc.
DS00002016B-page 5
