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2019 Microchip Technology Inc. DS50002889A
EVB-USB4x12Evaluation Board
User’s Guide
DS50002889A-page 2 2019 Microchip Technology Inc.
Note the following details of the code protection feature on Microchip devices:• Microchip products meet the specification contained in their particular Microchip Data Sheet.
• Microchip believes that its family of products is one of the most secure families of its kind on the market today, when used in the intended manner and under normal conditions.
• There are dishonest and possibly illegal methods used to breach the code protection feature. All of these methods, to our knowledge, require using the Microchip products in a manner outside the operating specifications contained in Microchip’s Data Sheets. Most likely, the person doing so is engaged in theft of intellectual property.
• Microchip is willing to work with the customer who is concerned about the integrity of their code.
• Neither Microchip nor any other semiconductor manufacturer can guarantee the security of their code. Code protection does not mean that we are guaranteeing the product as “unbreakable.”
Code protection is constantly evolving. We at Microchip are committed to continuously improving the code protection features of ourproducts. Attempts to break Microchip’s code protection feature may be a violation of the Digital Millennium Copyright Act. If such actsallow unauthorized access to your software or other copyrighted work, you may have a right to sue for relief under that Act.
Microchip received ISO/TS-16949:2009 certification for its worldwide headquarters, design and wafer fabrication facilities in Chandler and Tempe, Arizona; Gresham, Oregon and design centers in California and India. The Company’s quality system processes and procedures are for its PIC® MCUs and dsPIC® DSCs, KEELOQ® code hopping devices, Serial EEPROMs, microperipherals, nonvolatile memory and analog products. In addition, Microchip’s quality system for the design and manufacture of development systems is ISO 9001:2000 certified.
QUALITYMANAGEMENTSYSTEMCERTIFIEDBYDNV
== ISO/TS16949==
Information contained in this publication regarding device applications and the like is provided only for your convenience and may besuperseded by updates. It is your responsibility to ensure that your application meets with your specifications. MICROCHIP MAKES NOREPRESENTATIONS OR WARRANTIES OF ANY KIND WHETHER EXPRESS OR IMPLIED, WRITTEN OR ORAL, STATUTORY OROTHERWISE, RELATED TO THE INFORMATION, INCLUDING BUT NOT LIMITED TO ITS CONDITION, QUALITY, PERFORMANCE,MERCHANTABILITY OR FITNESS FOR PURPOSE. Microchip disclaims all liability arising from this information and its use. Use of Micro-chip devices in life support and/or safety applications is entirely at the buyer’s risk, and the buyer agrees to defend, indemnify and holdharmless Microchip from any and all damages, claims, suits, or expenses resulting from such use. No licenses are conveyed, implicitly orotherwise, under any Microchip intellectual property rights unless otherwise stated.
TrademarksThe Microchip name and logo, the Microchip logo, AnyRate, AVR, AVR logo, AVR Freaks, BitCloud, chipKIT, chipKIT logo, CryptoMemory, CryptoRF, dsPIC, FlashFlex, flexPWR, Heldo, JukeBlox, KeeLoq, Kleer, LANCheck, LINK MD, maXStylus, maXTouch, MediaLB, megaAVR, MOST, MOST logo, MPLAB, OptoLyzer, PIC, picoPower, PICSTART, PIC32 logo, Prochip Designer, QTouch, SAM-BA, SpyNIC, SST, SST Logo, SuperFlash, tinyAVR, UNI/O, and XMEGA are registered trademarks of Microchip Technology Incorporated in the U.S.A. and other countries.ClockWorks, The Embedded Control Solutions Company, EtherSynch, Hyper Speed Control, HyperLight Load, IntelliMOS, mTouch, Precision Edge, and Quiet-Wire are registered trademarks of Microchip Technology Incorporated in the U.S.A.Adjacent Key Suppression, AKS, Analog-for-the-Digital Age, Any Capacitor, AnyIn, AnyOut, BodyCom, CodeGuard, CryptoAuthentication, CryptoAutomotive, CryptoCompanion, CryptoController, dsPICDEM, dsPICDEM.net, Dynamic Average Matching, DAM, ECAN, EtherGREEN, In-Circuit Serial Programming, ICSP, INICnet, Inter-Chip Connectivity, JitterBlocker, KleerNet, KleerNet logo, memBrain, Mindi, MiWi, motorBench, MPASM, MPF, MPLAB Certified logo, MPLIB, MPLINK, MultiTRAK, NetDetach, Omniscient Code Generation, PICDEM, PICDEM.net, PICkit, PICtail, PowerSmart, PureSilicon, QMatrix, REAL ICE, Ripple Blocker, SAM-ICE, Serial Quad I/O, SMART-I.S., SQI, SuperSwitcher, SuperSwitcher II, Total Endurance, TSHARC, USBCheck, VariSense, ViewSpan, WiperLock, Wireless DNA, and ZENA are trademarks of Microchip Technology Incorporated in the U.S.A. and other countries.SQTP is a service mark of Microchip Technology Incorporated in the U.S.A.Silicon Storage Technology is a registered trademark of Microchip Technology Inc. in other countries.GestIC is a registered trademark of Microchip Technology Germany II GmbH & Co. KG, a subsidiary of Microchip Technology Inc., in other countries. All other trademarks mentioned herein are property of their respective companies.© 2019, Microchip Technology Incorporated, All Rights Reserved.ISBN: 978-1-5224-4560-9
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Table of Contents
Preface ........................................................................................................................... 5Introduction............................................................................................................ 5Document Layout .................................................................................................. 5Conventions Used in this Guide ............................................................................ 6The Microchip Web Site ........................................................................................ 7Development Systems Customer Change Notification Service ............................ 7Customer Support ................................................................................................. 7Document Revision History ................................................................................... 8
Chapter 1. Overview1.1 USB4712/USB4912 General Introduction ...................................................... 91.2 About EVB-USB4x12 ..................................................................................... 91.3 References ................................................................................................... 121.4 Acronyms and Definitions ............................................................................. 12
Chapter 2. Getting Started2.1 Introduction ................................................................................................... 152.2 Kit Contents .................................................................................................. 152.3 Quick Start .................................................................................................... 15
2.3.1 Power Source ............................................................................................ 152.3.2 Default Firmware ....................................................................................... 152.3.3 Host Connection ........................................................................................ 162.3.4 Downstream Port Connections .................................................................. 16
Chapter 3. Hardware Configuration Options3.1 Hardware Configuration Options .................................................................. 17
3.1.1 Configuration ............................................................................................. 173.1.2 Power Source ............................................................................................ 183.1.3 Board Power .............................................................................................. 183.1.4 Reset ......................................................................................................... 183.1.5 USB Ports .................................................................................................. 193.1.6 Spare GPIOs ............................................................................................. 193.1.7 SMBus/I2C Slave ...................................................................................... 203.1.8 USB to SMBus/I2C Master ........................................................................ 203.1.9 LED Indicators ........................................................................................... 213.1.10 Switches .................................................................................................. 213.1.11 Connector Descriptions ........................................................................... 223.1.12 Test Points .............................................................................................. 22
Appendix A. PCB LayersA.1 Introduction .................................................................................................. 23
Appendix B. Schematics
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B.1 Introduction .................................................................................................. 27Appendix C. Bill of Materials
C.1 Introduction .................................................................................................. 33Worldwide Sales and Service .....................................................................................38
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Preface
INTRODUCTIONThis chapter contains general information that will be useful to know before using the USB4712/USB4912. Items discussed in this chapter include:• Document Layout• Conventions Used in this Guide• The Microchip Web SiteThe Microchip Web Site• Development Systems Customer Change Notification Service• Customer Support• Document Revision History
DOCUMENT LAYOUTThis document describes how to use the EVB-USB4x12 Evaluation Board as a development tool for the USB4712/USB4912 1-Port USB 2.0 automotive hubs. The manual layout is as follows:• Chapter 1. “Overview” – This shows a brief description of the EVB-USB4x12
Evaluation Board.• Chapter 2. “Getting Started” – This includes instructions on how to get started
with the EVB-USB4x12 Evaluation Board.• Chapter 3. “Hardware Configuration Options” – This provides information
about the EVB-USB4x12 Evaluation Board battery charging features.• Appendix A. “PCB Layers” – This appendix shows the EVB-USB4x12 Evalua-
tion Board PCB layers.• Appendix B. “Schematics” – This appendix shows the EVB-USB4x12 Evalua-
tion Board schematics.• Appendix C. “Bill of Materials” – This appendix includes the EVB-USB4x12
Evaluation Board Bill of Materials (BOM).
NOTICE TO CUSTOMERS
All documentation becomes dated, and this manual is no exception. Microchip tools and documentation are constantly evolving to meet customer needs, so some actual dialogs and/or tool descriptions may differ from those in this document. Please refer to our web site (www.microchip.com) to obtain the latest documentation available.
Documents are identified with a “DS” number. This number is located on the bottom of each page, in front of the page number. The numbering convention for the DS number is “DSXXXXXA”, where “XXXXX” is the document number and “A” is the revision level of the document.
For the most up-to-date information on development tools, see the MPLAB® IDE online help. Select the Help menu, and then Topics to open a list of available online help files.
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CONVENTIONS USED IN THIS GUIDEThis manual uses the following documentation conventions:DOCUMENTATION CONVENTIONS
Description Represents ExamplesArial font:Italic characters Referenced books MPLAB® IDE User’s Guide
Emphasized text ...is the only compiler...Initial caps A window the Output window
A dialog the Settings dialogA menu selection select Enable Programmer
Quotes A field name in a window or dialog
“Save project before build”
Underlined, italic text with right angle bracket
A menu path File>Save
Bold characters A dialog button Click OKA tab Click the Power tab
N‘Rnnnn A number in verilog format, where N is the total number of digits, R is the radix and n is a digit.
4‘b0010, 2‘hF1
Text in angle brackets < > A key on the keyboard Press <Enter>, <F1>Courier New font:Plain Courier New Sample source code #define START
Filenames autoexec.bat
File paths c:\mcc18\h
Keywords _asm, _endasm, static
Command-line options -Opa+, -Opa-
Bit values 0, 1
Constants 0xFF, ‘A’
Italic Courier New A variable argument file.o, where file can be any valid filename
Square brackets [ ] Optional arguments mcc18 [options] file [options]
Curly brackets and pipe character: { | }
Choice of mutually exclusive arguments; an OR selection
errorlevel {0|1}
Ellipses... Replaces repeated text var_name [, var_name...]
Represents code supplied by user
void main (void){ ...}
Preface
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THE MICROCHIP WEB SITEMicrochip provides online support via our web site at www.microchip.com. This web site is used as a means to make files and information easily available to customers. Accessible by using your favorite Internet browser, the web site contains the following information:• Product Support – Data sheets and errata, application notes and sample
programs, design resources, user’s guides and hardware support documents,latest software releases and archived software
• General Technical Support – Frequently Asked Questions (FAQs), technicalsupport requests, online discussion groups, Microchip consultant programmember listing
• Business of Microchip – Product selector and ordering guides, latest Microchippress releases, listing of seminars and events, listings of Microchip sales offices,distributors and factory representatives
DEVELOPMENT SYSTEMS CUSTOMER CHANGE NOTIFICATION SERVICEMicrochip’s customer notification service helps keep customers current on Microchip products. Subscribers will receive e-mail notification whenever there are changes, updates, revisions or errata related to a specified product family or development tool of interest.To register, access the Microchip web site at www.microchip.com, click on Customer Change Notification and follow the registration instructions.
The Development Systems product group categories are:• Compilers – The latest information on Microchip C compilers, assemblers, linkers
and other language tools. These include all MPLAB C compilers; all MPLABassemblers (including MPASM assembler); all MPLAB linkers (including MPLINKobject linker); and all MPLAB librarians (including MPLIB object librarian).
• Emulators – The latest information on Microchip in-circuit emulators. Thisincludes the MPLAB REAL ICE and MPLAB ICE 2000 in-circuit emulators.
• In-Circuit Debuggers – The latest information on the Microchip in-circuitdebuggers. This includes MPLAB ICD 3 in-circuit debuggers and PICkit 3 debugexpress.
• MPLAB IDE – The latest information on Microchip MPLAB IDE, the WindowsIntegrated Development Environment for development systems tools. This list isfocused on the MPLAB IDE, MPLAB IDE Project Manager, MPLAB Editor andMPLAB SIM simulator, as well as general editing and debugging features.
• Programmers – The latest information on Microchip programmers. These includeproduction programmers such as MPLAB REAL ICE in-circuit emulator, MPLABICD 3 in-circuit debugger and MPLAB PM3 device programmers. Also includedare non-production development programmers such as PICSTART Plus andPIC-kit 2 and 3.
CUSTOMER SUPPORTUsers of Microchip products can receive assistance through several channels:• Distributor or Representative• Local Sales Office• Field Application Engineer (FAE)• Technical Support
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Customers should contact their distributor, representative or field application engineer (FAE) for support. Local sales offices are also available to help customers. A listing of sales offices and locations is included in the back of this document.Technical support is available through the web site at: http://www.microchip.com/support
DOCUMENT REVISION HISTORY
Revisions Section/Figure/Entry CorrectionDS50002889A
(05-29-19)Initial release
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Chapter 1. Overview
1.1 USB4712/USB4912 GENERAL INTRODUCTIONThe USB4712/USB4912 hub controller is a 1-port USB2.0 smart hub controller, whichis fully compliant with the USB2.0 Specification. The 1-port hub supports 480 MbpsHigh-Speed (HS), 12 Mbps Full-Speed (FS) and 1.5 Mbps Low-Speed (LS) USBsignaling.USB4712: The USB4712 is a 1-port retimer hub with AutoFlexConnect technology.This hub is design for use within automotive systems which require an attached smartphone to assume the host role when docked to the automotive head unit system.AutoFlexConnect technology allows this hub to actively seek for a host connection onboth the default upstream or default downstream port. If a host is detected on thedefault downstream port, but no host is detected on the default upstream port, then thehub will automatically reconfigure itself and initiate FlexConnect to allow the hostdetected on the default downstream port to enumerate the hub and any devicesattached to the USB4712 default upstream port. This allows a functional role swapbetween the head unit and the smart phone to occur with no direct role swap com-mands issued to the USB4712. This hub also supports BC1.2 battery charging on thedefault downstream port.USB4912: The USB4912 is a 1-port hub with Multi-Host Endpoint Reflector technology.This hub is designed for use within automotive systems which require an attachedsmartphone to assume the host role when docked to the automotive head unit system.With Multi-Host Endpoint Reflector technology, both the automotive head unit and thesmartphone may operate as USB hosts at the same time while exchanging data. Acommand issued from the automotive head unit directed to the USB4912’s internal HubFeature Controller device is all that is needed to initiate a Multi-Host Endpoint Reflectorsession. This hub also supports BC1.2 battery charging on the downstream port. TheUSB4912 also has a secondary ‘remote port’ which can be used to daisy chain addi-tional USB4912 hubs. The USB4712/USB4912 smart hubs both have an embedded MCU for enablingadvanced features. These features include, hub configuration through upstream USBinterface, USB-to-I2C Bridging, USB-to-SPI Bridging, USB-to-GPIO Bridging and more.
1.2 ABOUT EVB-USB4X12Figure 1-1 shows a rendering of the top side of EVB-USB4x12.
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FIGURE 1-1: EVB-USB4X12 TOP
Figure 1-2 shows a rendering of the bottom side of EVB-USB4x12.
FIGURE 1-2: EVB-USB4X12 BOTTOM
Overview
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The EVB-USB4x12 is a 4-layer RoHS-compliant evaluation board that utilizes theUSB4712/USB4912 to provide a fully functional 1-port hub with battery charging capa-bilities. The EVB-USB4x12 also features the UCS2114 two channel USB port powercontroller. The USB4712/USB4912 may optionally execute firmware from an externalSST26VF016B SPI Flash device included in the PCB. Many configurable options maybe controlled through the MPLAB Connect Configurator tool. The EVB-USB4x12demonstrates driver compatibility with native Microsoft® Windows®, Mac OS®, andLinux® hub drivers. The EVB-USB4x12 provides the following features:• USB4712 or USB4912 in a 40-pin QFN RoHS compliant package• One UCS2114 in a 20-pin QFN RoHS compliant package• SST26VF016B in a 8-pin SOIC RoHS compliant package• USB 2.0 compliant (HS, FS, and LS operation); USB pins are 5V tolerant• Self-powered (external 5V source) or Bus-powered (powered from USB VBUS)
operation• One USB2.0 Type-A downstream port on EVB-USB4712. Two USB2.0 Type-A
downstream ports on EVB-USB4912• Battery Charging support (BC1.2 CDP and DCP) on the downstream port (Port 1
of EVB-USB4912)• Downstream ports support individual port power and over current sense• MCP1825 on board +3.3V, 1 Amp regulator• LED indicators for:
- 3.3V board power- Downstream port VBUS- Reset- SPI chip activity
Figure 1-3 shows the block diagram of the EVB-USB4x12.
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FIGURE 1-3: BLOCK DIAGRAM OF EVB-USB4X12
1.3 REFERENCESConcepts and materials available in the following documents may be helpful when reading this document. Visit www.microchip.com for the latest documentation.• USB4712 Data Sheet• USB4912 Data Sheet• AN2651 - Configuration of Microchip USB47xx/USB49xx
1.4 ACRONYMS AND DEFINITIONS
USB4x12
Type-A
mini-B Terminal Block
SPI
Flash
Ty
pe-
A
Dai
sy C
hai
nP
ort
(US
B4
91
2 O
nly
)
UCS2114
MCP1825
3.3V
VBUS VBUS
VB
US
5V
IN
USB2.0
USB2.0 USB2.0
TABLE 1-1: ACRONYMS AND DEFINITIONSAcronym Definition
BC1.2 Latest USB-IF specified USB battery charging standardCDP Charging Downstream Port. A type of port defined in the
BC1.2 specification which is capable of delivering up to 1.5A of charging at 5V along with USB data.
DCP Dedicated Charging Port. A type of port defined in the BC1.2 specification which is capable of delivering up to 1.5A of charging at 5V without USB data capabilities.
DFP Downstream Facing Port. On a hub, this is a port that a device should be attached to.
DP DisplayPort. An interface used to connect transit display and sound data from a video capable device to a monitor or display.
EVB Evaluation BoardIC Integrated Circuit
Overview
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OTP One-Time Programmable MemorySDP Standard Downstream Port. A type of port defined in the
BC1.2 specification which is capable of delivering up to 500 mA of charging at 5V along with USB data.
Type-A Non-reversible USB connector, used for DFP ports onlyUSB2.0 Universal Serial Bus Specification 2.0, released April
2000 by USB-IFUSB Universal Serial Bus, a communication technology speci-
fication developed by the USB-IF.USB-IF USB Integrators Forum, a collection of corporate spon-
sored members responsible for developing USB specifi-cations
UFP Upstream Facing Port. On a hub, this is a port that should connect to a USB host
VBUS Refers to the 5V-20V power conductor inside of a Type-C cable, the power pins on a USB connector, or the USB power traces on a PCB
TABLE 1-1: ACRONYMS AND DEFINITIONS (CONTINUED)Acronym Definition
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NOTES:
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Chapter 2. Getting Started
2.1 INTRODUCTIONThe Microchip EVB-USB4x12 is designed for flexible configuration solutions. It can be configured via default internal register settings, via a downloadable external firmware to an onboard SPI Flash, or via SMBus. Microchip provides a comprehensive software programming tool, MPLAB Connect (MPLABC), for configuring USB4712/USB4912 functions, registers, and OTP memory. USB4712/USB4912 requires MPLABC version 2.3.0 or greater.For additional information on the MPLABC programming tool, refer to Software Librar-ies within the Microchip USB4712/USB4912 product page at www.micro-chip.com/USB4712 or www.microchip.com/USB4912
2.2 KIT CONTENTSThe EVB-USB4x12 Evaluation Kit includes on the EVB-USB4x12 PCB. This board may be used with standard USB cabling. The kit also includes one USB Type-A to USB Mini-B cable.
2.3 QUICK START
2.3.1 Power SourceA power supply is not included with EVB-USB4x12. This board may be powered directly from VBUS of the USB host, VBUS from the host connected to downstream port 1, or from an external 5V power supply, which may be connected to J2.If powering the PCB from a USB host’s VBUS, ensure shunts are installed on J4 between pins [1-2] and [3-4].If powering the PCB from an external 5V power supply, remove all shunts on J4.
2.3.2 Default FirmwareBy default, the hub operates from internal ROM FW image plus the standard fac-tory-programmed OTP configuration contents. No firmware image is included inside of the on-board SPI Flash device. A firmware may be loaded by onto the onboard SPI Flash via USB by using the MPLAB Connect SPI Flash programming feature. There is no need to program the SPI Flash before operating the EVB. A special firmware image is only required for systems which require custom functionality not included in the internal ROM options. D2 labeled “SPI ACTIVE” should illuminate bright blue while the hub is executing the firmware from the external SPI Flash.
Note: If you wish to execute firmware from the internal ROM image after a firmware imagehas been programmed to the on-board SPI Flash, install a shunt on J6 to disableaccess to the SPI Flash device.
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2.3.3 Host ConnectionA USB2.0 or host must be connected to the upstream USB Mini-B port J1. A Type-A to Mini-B cable or a Type-C to Mini-B cable is required to connect the board to a standard USB host.
2.3.4 Downstream Port ConnectionsOnce host connection is established on the upstream host port and the host issues the command to the hub to enable downstream port power, devices may be connected to the downstream port(s) to begin communicating with the USB host.Downstream port 1 is a standard USB Type-A receptacle. This port includes a 5V UCS2114 power switch capable of delivering up to 3A of current before over-current protection is triggered. Diode D4 labeled “VBUS P1” will illuminate when VBUS power is applied to the port.Downstream port 2 is available on USB4912 only, and includes a standard USB Type-A receptacle. This port is intended to connect another hub tier. It is not intended to oper-ate as a standard USB port as it does not have individual power enable and overcurrent detection functionality. This port is also powered from the 5V UCS2114 power switch device and is ‘always on’.
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Chapter 3. Hardware Configuration Options
3.1 HARDWARE CONFIGURATION OPTIONS3.1.1 Configuration
3.1.1.1 RUNNING FROM INTERNAL ROM FIRMWARE
By default, the hub firmware of the USB4712/USB4912 executes from internal ROM memory.To force the hub to boot from the internal ROM, install a shunt onto J6.
3.1.1.2 EXTERNAL SPI FLASH
The USB4712/USB4912 may optionally execute firmware from an external SPI Flash. A firmware image may be programmed to the external SPI Flash via the MPLAB Con-nect Configurator tool. After programming and executing a firmware image from an external SPI Flash, the firmware revision can be quickly identified by enumerating the EVB-USB4x12 to a USB host PC and inspecting the USB Device ID (bcdDevice) of the USB2.0 hub. See Figure 3-1.In order to boot from SPI Flash properly, the following conditions must be met:• A valid firmware image must be programmed into the SPI Flash device• Remove any shunt installed on J6
FIGURE 3-1: COMPONENTS CRITICAL FOR EXTERNAL SPI FLASH FIRMWARE EXECUTION
The recommended sequence for reprogramming the SPI firmware is:1. Install a shunt onto J6 to force booting from internal ROM memory.2. Reset the USB4712/USB4912.3. Connect EVB-USB4x12 to a USB host PC with a USB Type-A to Type-C cable.4. Boot the MPLAB Connect software and select the new firmware image.5. Remove the shunt on J6.6. Click the program button in MPLAB Connect.
SPI ACTIVITYLED(D2)
SPI DISABLEHEADER
(J6)
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3.1.2 Power SourceThe EVB-USB4x12 must be powered externally through the J1 4-Pin DIN connector, or through the J5 terminal block.The supported input voltage range for the base board is 12V to 24V. By default, the sup-plied PM-PD requires an input of 24V to properly regulate up to 20V volts to the upstream PD ports. The recommend input voltage is 24V unless an alternate PM-PD and/or a specialized hub firmware is used.A power supply is not included with the EVB-USB4x12.
3.1.3 Board PowerThe board includes LED indicators to indicate if all board power nets are working and includes test loops for quick measurements. The location of these LEDs and test loops are shown in Figure 3-2 below.
FIGURE 3-2: BOARD POWER LEDS AND TEST LOOPS)
3.1.4 ResetAn on-board reset button (SW1) is included, and this resets the USB4712/USB4912 when pressed. A red LED indicator (D3) also illuminates when the reset signal is asserted (active low). The locations of these components are shown in Figure 3-3 below.
FIGURE 3-3: RESET BUTTON LOCATION
3.3V
3.3V LED
GROUND INDICATORD1
TESTPOINTTP2
TESTPOINTS
TP1TP5TP6
RESET LED
RESET BUTTON
D3
SW1
Hardware Configuration
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3.1.5 USB PortsThe following is a list of capabilities for each USB port on the EVB-USB4x12.• Port 0:
- Data upstream port (connects to a USB host)- USB2.0 Mini-B receptacle- USB2.0 data connectivity
• Port 1:- Data downstream port with AutoFlex (USB4712) or multi-host endpoint reflec-
tor (USB4912)- USB2.0 Type-A receptacle- USB2.0 data connectivity- BC1.2 charging at up to 7.5W (5V at 1.5A)
• Port 2: - Downstream Type-A receptacle- USB2.0 data connectivity
Figure 3-4 shows the top view of the EVB-USB4x12.
FIGURE 3-4: EVB-USB4X12 USB PORTS
3.1.6 Spare GPIOsThe EVB-USB4x12 includes 4 GPIOs for USB to GPIO or SMBus/I2C Slave to GPIO use. These pins are connected to J5 1x6 header. See Figure 3-5.
PORT1
PORT2
PORT0
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FIGURE 3-5: SPARE GPIOS
3.1.7 SMBus/I2C SlaveAn SMBus/I2C slave interface is available to configure or retrieve status from the USB4712/USB4912 hub. Pull-up resistors must be sensed by the hub at power on in order for the SMBus/I2C slave interface to be active. If both SDA and SCL are not sensed as high upon power-on/reset, the SMBus/I2C slave interface is disabled. See Figure 3-6.
FIGURE 3-6: USB TO SMBUS/I2C SLAVE HEADER LOCATIONS
3.1.8 USB to SMBus/I2C MasterA USB to SMBus/I2C master interface is available to allow for the USB host to read or write data to an attached SMBus/I2C slave device. The on-board UCS2114 is con-nected to the SMBus/I2C bus and is address 57h – 1010_111(r/w). An optional external slave device may be attach to the board through fly wires by connected to TP3 (DAT) and TP4 (CLK).The USB to SMBus/I2C feature may be tested with the MPLAB Connect Configurator tool, available from the Microchip website. See Figure 3-7.
SPARE GPIOHEADER
J5
SLAVE DATA(J5-5)
SLAVE CLOCK(J5-6)
Hardware Configuration
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FIGURE 3-7: USB TO SMBUS/I2C MASTER HEADER LOCATIONS
3.1.9 LED IndicatorsTable 3-1 describes the LEDs included on the PCB.
3.1.10 SwitchesTable 3-2 shows the switches included on the PCB.
TABLE 3-1: EVB-USB4X12 LED DESCRIPTIONSReference Designator Label Description
D1 3V3 Illuminates when board 3.3V net is powered onD2 SPI ACTIVE SPI Activity indicator LED. Illuminates when the SPI Chip
Enable signal is asserted (pulled low).D3 RESET Reset indicator LED. Illuminates when the RESET_N signal is
asserted (pulled low).D4 VBUS P1 Downstream Port 1 VBUS indicator. Illuminates when VBUS
on Port 1 is present.
TABLE 3-2: EVB-USB4X12 SWITCH DESCRIPTIONSReference Designator Label Description
SW1 RESET Hub reset push button
MASTER
MASTER
UCS2114(U2)
DATA(TP3)
CLOCK(TP4)
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3.1.11 Connector DescriptionsTable 3-3 specifies the connectors included on the PCB.
3.1.12 Test PointsTable 3-4 describes the test points included in the PCB.
TABLE 3-3: EVB-USB4X12 CONNECTOR DESCRIPTIONSReference Designator Type Label Description
J1 USB Mini-B Receptacle
N/A Upstream USB port
J2 2-Pin Terminal Block
5 VIN Optional 5V board supply input
J3 USB Type-A Receptacle
N/A Downstream port 2 USB Type-A connector (USB4912 only)
J4 2x2 Header N/A Connects VBUS from upstream USB con-nector to board power. Install shunts across pins [1-2] and [3-4] to operate the hub PCB in bus-powered mode.
J5 1x6 Header GPIO2, GPIO3, GPIO6, GPIO11, DAT, CLK
Header for probing GPIOs and I2C slave interface
J6 1x2 Header N/A Installs shunt to force the SPI Flash to remain inactive
J7 USB Type-A Receptacle
N/A Downstream Port 1 USB Type-A connector
TABLE 3-4: EVB-USB4X12 TEST POINT DESCRIPTIONSReference Designator Label Description
TP1 GND Ground test pointTP2 3V3 3.3V board power test pointTP3 DAT I2C Master data test pointTP4 n/a I2C Master clock test pointTP5 GND Ground test pointTP6 GND Ground test point
EVB-USB4X12EVALUATION BOARD
USER’S GUIDE
2019 Microchip Technology Inc. DS50002889A-page 23
Appendix A. PCB Layers
A.1 INTRODUCTIONThis appendix shows the EVB-USB4x12 Evaluation Board User’s Guide PCB Layers. See Figure A-1 to Figure A-6.
FIGURE A-1: EVB-USB4X12 EVALUATION BOARD TOP SILKSCREEN
FIGURE A-2: EVB-USB4X12 EVALUATION BOARD TOP COPPER
EVB-USB4x12 Evaluation Board User’s Guide
DS50002889A-page 24 2019 Microchip Technology Inc.
FIGURE A-3: EVB-USB4X12 EVALUATION BOARD LAYER 2 (GROUND)
FIGURE A-4: EVB-USB4X12 EVALUATION BOARD LAYER 3 (POWER)
PCB Layers
2019 Microchip Technology Inc. DS50002889A-page 25
FIGURE A-5: EVB-USB4X12 EVALUATION BOARD BOTTOM COPPER
FIGURE A-6: EVB-USB4X12 EVALUATION BOARD BOTTOM SILKSCREEN
EVB-USB4x12 Evaluation Board User’s Guide
DS50002889A-page 26 2019 Microchip Technology Inc.
NOTES:
EVB-USB4X12EVALUATION BOARD
USER’S GUIDE
2019 Microchip Technology Inc. DS50002889A-page 27
Appendix B. Schematics
B.1 INTRODUCTIONThis appendix shows the EVB-USB4x12 Evaluation Board Schematics. See Figure B-1 to Figure B-4.
EVB-U
SB4x12 Evaluation B
oard User’s G
uide
DS
50002889A-page 28
2019 Microchip Technology Inc.
FIGURE B-1: EVB-USB4X12 EVALUATION BOARD SCHEMATIC 1
1
1
2
2
3
3
4
4
5
5
6
6
D D
C C
B B
A A
Page Title:
Project Name:
Table of Contents, Block DiagramEVB-USB4x12 PN: UNG_8184
Description:
Date:Size: Sheet of RevB 1 4 B07/16/2018 Designer: Andrew Rogers
EVB-USB4x12- Evaluation Board
Designed withMicrochip Technology, Inc.USB/Network Group - UNGwww.Microchip.com
[No Variations]Variant:Altium.com
NotesAll resistors are 1% unless specified otherwise1
Shunt jumper default selections are marked with an asterisk [*].2
Table of Contents
1
DescriptionSheet
2
3
4
USB4927, SST26VF SPI Flash, MCP1825 3.3V LDO
Revision History
00A
Revision SummaryRevision Date
Initial release
Author
Arnaldo Cruz6/18/2018Table of Contents, Revision History, Block Diagram
UPD360, USB DS Port 1, MCP19119 HV Supply 1
UPD360, USB DS Port 2, MCP19119 HV Supply 2
UCS2113 Port Controller, USB DS Ports 3 and 45
USB4x12
Type-A
mini-B Terminal Block
SPI
Flash
Ty
pe-
A
Dai
sy C
hai
nP
ort
(US
B4
91
2 O
nly
)UCS2114
MCP1825
3.3V
VBUS VBUS
VB
US
5V
IN
USB2.0
USB2.0 USB2.0
USB4x12 Evaluation Board
Schematics
2019 M
icrochip Technology Inc.D
S50002889A-page 29
FIGURE B-2: EVB-USB4X12 EVALUATION BOARD SCHEMATIC 2
1
1
2
2
3
3
4
4
5
5
6
6
D D
C C
B B
A A
Page Title:
Project Name:
USB4x12 HubEVB-USB4x12 PN: UNG_8184
Description:
Date:Size: Sheet of RevB 2 4 B07/16/2018 Designer: Andrew Rogers
EVB-USB4x12- Evaluation Board
Designed withMicrochip Technology, Inc.USB/Network Group - UNGwww.Microchip.com
[No Variations]Variant:Altium.com
10kR15
3V3
12k1%R26
XTALIXTALO
0.1uFC11
1V2
1uFC13
RBIAS
200kR29
3V3
10kR14
10kR16
3V3
100kR18
100kR17
SIO1
3V3
0.1uF
C12
SIO0
FCEn
1kR19
SPI Flash Active
External Reset
BLUED2
RESET
3V3
0.1uF
C26
0.1uFDNP
C25
10pF
C1910pF
C20
VBUS_DET
1k
R37
0.1uFC14
3V3
0.1uFC17
0.1uFC18
0.1uFC16
0.1uFC15
1uFC22
0.1uFC23
SPI_CLK
SIO3FSIO2F
SIO2FSIO3F
0.1uFC21
120RFB1
SPI_CEn/CFG_NON_REM
SPI_DI/CFG_BC_EN
Ports 1 BC Enabled
200kDNP
R34
3V3 Port 1 Non-Rem
200kR35
0R DNPR200RR21
0R DNPR24
0RR25
SPI_CE_N
3V3
Hold
3V3
USBP0_PSPI_DISIO0
USB_SEC_NUSB_SEC_P
0.1uF
C24
USBP1_N 3USBP1_P 3
10kR36
0RR220RR23
SIO2SIO3
RST_N
CFG_NON_REM
CFG_BC_EN
USBP0_N 3USBP0_P 3
VBUS_DET 3
USB_SEC_N 3USB_SEC_P 3
Reset
BC/Non-Rem Straps
SPI Flash Option
VDDCR1213
VDDIO337
VDDIO3314
VDDIO3319
VDDIO3325
VDDIO3330
VDDIO3333
VDDPLLREF3339
ePAD41
TEST18
TEST29
TEST310
SPI_CLK/SQI_CLK15
SPI_DO/SQI_D016
SPI_DI/SQI_D1/CFG_BC_EN17
SPI_CE_N/CFG_NON_REM18
SQI_D220
SQI_D321
XTALO37
XTALI/CLK_IN38
RESET_N28
VSS36
RBIAS40
POWER
VBUS_DET29
PRT_CTL1/OCS112
NC11
USBH_DP034
USBH_DM035
USB_DP12
USB_DM13
USB_DP24
USB_DM25
SMB1_DAT31
GPIO227
GPIO326
GPIO624
SMB2_DAT23
SMB2_CLK22
GPIO116
SMB1_CLK32
NC1
CLOCK
UTILITY
SPI_SQI UPSTREAM
DOWNSTREAM
DAISY CHAIN
MISC
U5
USB4912
USBP0_N
USBP1_NUSBP1_P
PRTCTL1 3
200kDNP
R30
Port 1 Removable
Port 1 BC Disabled
4.7kR324.7kR33
4.7kR313V3
SMB2_DAT 3SMB2_CLK 3 USB to I2C
Master123456
HDR-1.27 Male 1x6
J5
0RR27
0RR28
3V3
USB4712 Only
CE1
SO/SIO12
WP/SIO23
VSS4
SI/SIO05
SCK6
HOLD/SIO37
VDD8
SST26VF016B
U3
3V3
24VCC
5
GND
3
VCC
GND
V
G
U774LVC1G14GW,125
421
3
SPST-NO
SW1
VDD3
GND1
RST2
MIC803/2.93V
U6
24VCC
5
GND
3
VCC
GND
V
G
U4
74LVC1G14GW,125
GPIO2GPIO3GPIO6GPIO11
SMB1_DATSMB1_CLK
USB4x12 Hub
REDD3
12
J4
25MhzY1
EVB-U
SB4x12 Evaluation B
oard User’s G
uide
DS
50002889A-page 30
2019 Microchip Technology Inc.
FIGURE B-3: EVB-USB4X12 EVALUATION BOARD SCHEMATIC 3
1
1
2
2
3
3
4
4
5
5
6
6
D D
C C
B B
A A
Page Title:
Project Name:
USB PortsEVB-USB4x12 PN: UNG_8184
Description:
Date:Size: Sheet of RevB 3 4 B07/16/2018 Designer: Andrew Rogers
EVB-USB4x12- Evaluation Board
Designed withMicrochip Technology, Inc.USB/Network Group - UNGwww.Microchip.com
Altium.com
USB Ports
3V3
330RR3
"PORT3"
0.1uFC3
USB-A Downstream Port 1
EARTH_P1PORT1 VBUS
3V347uF
C11kDNP
R1
1k
R4D1
0.1uFC2
VBUS1
GND4
D-2
D+3
VBUS
GND
D-D+
0
USB2.0 STD-A FEMALE
J1
USB-IF TID 60001133
EARTH_P1EARTH_P0
3V3
330RR6
EARTH_P0
0.1uFC5
200kR5
100kR2
2.2uFC4
PORT0
Mini-B Upstream Port
VBUS1
GND4
D-2
D+3
VBUS
GND
D-D+
0
USB2.0 STD-A FEMALE
J3
Daisy Chain Port (USB4912 Only)
USBP1_N2USBP1_P2
USBP0_N 2USBP0_P 2
VBUS_DET 2
USB_SEC_N2USB_SEC_P2
PWR_EN11
GN
D2
COMM_ILIM3
VBUS14
VBUS15
VS
21
0V
S2
9
VD
D8
VS
17
VS
16
VBUS212
VBUS211
BOOST13
GN
D1
4
PWR_EN215
ALERT216
GN
D1
7
SM
DA
TA
18
SM
CL
K1
9
ALERT120
PWR_EN1
GN
D
COMM_ILIM
VBUS1VBUS1
VS
2V
S2
VD
D
VS
1V
S1
VBUS2VBUS2
BOOST
GN
D
PWR_EN2
ALERT2
GN
D
SM
DA
TA
SM
CL
K
ALERT1
M
UCS2114-1-V/LX
U2
0RR10
VBUS2
47uFC7
47uFC9
47uFC8
47uFC10
5V
0.1uFC6
5V
10k
R8
5V
Configuration: 3.2A Limit per portSMBus Enabled (connected to USB Hub)
VBUS1
0RDNPR7
33k 1%R9
10kR11
5V
VBUS2
PRTCTL12
VBUS1
Port Power Switch
VBUS_UP 4
VBUS_UP Can optionally supply power to the entire PCB.See the "Voltage Regulators" sheet for the jumper optionto select between "VBUS_UP" power or external "VBAT" supply.
SMB2_DAT2SMB2_CLK2
4.7kR12
4.7kR13
3V3
2 4VCC
5
GND
3
VCC
GND
C
D
C
D
U174LVC1G14GW,125
ID4
VBUS1
GND5
D-2
D+3
0
US
B2
.0M
INI-
BF
EM
AL
E J2
I2C Communication to UCS2114 is optional and not required for normal operation
Schematics
2019 M
icrochip Technology Inc.D
S50002889A-page 31
FIGURE B-4: EVB-USB4X12 EVALUATION BOARD SCHEMATIC 4
1
1
2
2
3
3
4
4
5
5
6
6
D D
C C
B B
A A
Page Title:
Project Name:
Voltage RegulatorEVB-USB4x12 PN: UNG_8184
Description:
Date:Size: Sheet of RevB 4 4 B07/16/2018 Designer: Andrew Rogers
EVB-USB4x12- Evaluation Board
Designed withMicrochip Technology, Inc.USB/Network Group - UNGwww.Microchip.com
Altium.com
Fiducials
Voltage Input Select
Voltage Regulator
10kR40
5V3V3
1k
R38
3V3
3V3 @ 500mA
10uFC28
FB3V310uFC29
5VDC to 3.3VDC 3V3
GND
3V35V
86.6k1%
R41
FID1 FID2 FID3
FID4 FID5 FID6
0.1uFC30
D5
VIN
0.1uFC27
20RR39
TP1
TP2
21
J6
GND (TAB)6
VIN2
VOUT4
GND3
SHDN1
ADJ5
MCP1825/ADJ
U8
12k1%
R42
SMBJP6KE6.8D4
VBUS_UP Can optionally supply power to the entire PCB.If used, ensure that the VBUS source has sufficient currentcapacity to power the PCB + all connected downstream devices.
1 23 4
HDR-2.54 Male 2x2
J7
VBUS_UP3
EVB-USB4x12 Evaluation Board User’s Guide
DS50002889A-page 32 2019 Microchip Technology Inc.
NOTES:
EVB-USB4X12EVALUATION BOARD
USER’S GUIDE
2019 Microchip Technology Inc. DS50002889A-page 33
Appendix C. Bill of Materials
C.1 INTRODUCTIONThis appendix includes the EVB-USB4x12 Evaluation Board Bill of Materials (BOM). See Table C-1.
EVB-U
SB4x12 Evaluation B
oard User’s G
uide
DS
50002889A-page 34
2019 Microchip Technology Inc.
TABLE C-1: EVB-USB4X12 BILL OF MATERIALSItem Quantity Designator Description Manufacturer Manufacturer Part Number
1 2 C1, C2 CAP CER 10 pF 50V 5% NP0 SMD 0402 Murata GRM1555C1H100JZ01D
2 5 C3, C4, C5, C6, C28 CAP CER 47 uF 6.3V 20% X5R SMD 0805 Taiyo Yuden JMK212BJ476MG-T
3 17 C7, C8, C9, C13, C14, C15, C17, C18, C20, C21, C22, C23, C24, C25, C26, C29, C30
CAP CER 0.1 uF 16V 10% X7R SMD 0402 Murata GRM155R71C104KA88D
4 1 C10 CAP CER 2.2 uF 10V 10% X7R SMD 0603 Murata GRM188R71A225KE15D
5 2 C11, C12 CAP CER 10 uF 16V 10% X5R SMD 0805 Wurth Electronics Inc 885012107014
6 2 C16, C19 CAP CER 1 uF 6.3V 10% X5R SMD 0603 Panasonic ECJ-1VB0J105K
7 2 D1, D4 DIO LED GREEN 2V 30 mA 35 mcd Clear SMD 0603 Lite-On Inc LTST-C191KGKT
8 1 D2 DIO LED BLUE 2.8V 20 mA 15 mcd Clear SMD 0603 Lite-On LTST-C193TBKT-5A
9 1 D3 LED, Bright Red, 0603 Lite-On LTST-C191KRKT
10 1 D5 DIO TVS SMBJP6KE6.8CA 5.8V 600W DO-214AA_SMB
Micro Commercial Co SMBJP6KE6.8CA-TP
11 1 D6 DIO SCTKYARR BAT54C 530 mV 200 mA 30V SOT-23-3
Diodes Incorporated BAT54CTA
12 1 FB1 FERRITE 600 mA 120R SMD 0603 TDK Corporation MMZ1608B121CTAH0
13 1 J1 CON USB2.0 MINI-B FEMALE SMD R/A Wurth Electronics Inc. 65100516121
14 1 J2 CON TERMINAL 5.08 mm 1X2 Female 16-30AWG 13.5A TH RA
TE Connectivity 282836-2
15 2 J3, J7 CON USB2.0 STD-A FEMALE TH R/A TE Connectivity AMP Connectors 292303-1
16 1 J4 CON HDR-2.54 Male 2x2 Gold 5.84MH TH VERT Wurth Electronics Inc 61300421121
17 1 J5 CON HDR-1.27 Male 1x6 Gold 3MH TH VERT Sullins GRPB061VWVN-RC
18 4 R1, R13, R16, R17 RES TKF 1k 1% 1/10W SMD 0603 Panasonic ERJ-3EKF1001V
19 8 R2, R3, R26, R27, R28, R39 RES TKF 0R 1/10W SMD 0603 NIC Components NRC06Z0TRF
20 1 R4 RES TKF 12k 1% 1/10W SMD 0603 Yageo RC0603FR-0712KL
21 5 R6, R7, R8, R11, R14 RES TKF 4.7k 1% 1/10W SMD 0603 Panasonic ERJ-3EKF4701V
22 2 R9, R12 RES TKF 200k 1% 1/10W SMD 0603 Vishay CRCW0603200KFKEA
23 1 R15 RES TKF 0R 1/10W SMD 0603 Panasonic ERJ-3GSY0R00V
24 2 R18, R43 RES TKF 330R 1% 1/10W SMD 0603 Panasonic ERJ-3EKF3300V
25 1 R19 RES TKF 20R 1% 1/10W SMD 0603 Panasonic ERJ-3EKF20R0V
26 1 R22 RES TKF 12k 1% 1/10W SMD 0603 Stackpole Electronics Inc RMCF0603FT12K0
27 1 R23 RES TKF 86.6k 1% 1/10W SMD 0603 Panasonic Electronic Components ERJ-3EKF8662V
Bill of M
aterials
2019 M
icrochip Technology Inc.D
S50002889A-page 35
28 4 R24, R25, R32, R33 RES TKF 10k 1% 1/10W SMD 0603 ROHM MCR03EZPFX1002
29 2 R30, R31 RES TF 100k 1% 1/8W SMD 0603 Vishay MCT06030C1003FP500
30 4 R34, R35, R36, R41 RES TKF 10k 1% 1/10W SMD 0603 Vishay CRCW060310K0FKEA
31 1 R42 RES TKF 33k 1% 1/10W SMD 0603 Panasonic ERJ-3EKF3302V
32 1 SW1 SWITCH TACT SPST 16V 50 mA PTS810 SJM 250 SMTR LFS SMD
C&K Components PTS810 SJM 250 SMTR LFS
33 1 U1 IC INTERFACE USB4712/USB4912 USB 2.0 Multi-Host Hub Controller VQFN-40
Microchip Technology USB4712-I/PNXVAA or USB4912-I/PNX-VAA
34 1 U2 MCHP INTERFACE USB Power Controller UCS2114 QFN-20
Microchip Technology UCS2114-1-V/LX
35 1 U3 MCHP ANALOG LDO ADJ MCP1825T-ADJE/DC SOT-223-5
Microchip Technology MCP1825T-ADJE/DC
36 1 U4 MCHP MEMORY SERIAL FLASH 16M 104 MHz SST26VF016B-104I/SM SOIJ-8
Microchip Technology SST26VF016B-104I/SM
37 3 U5, U7, U8 74LVC1G14GW,125 SCHMITT-TRG INVERTER NXP 74LVC1G14GW,125
38 1 U6 MCHP ANALOG SUPERVISOR 2.93V MIC803-29D4VM3-TR SOT-23-3
Microchip Technology MIC803-29D4VM3-TR
39 1 Y1 Crystal 25 MHz 4 pins 3225 ABRACON ABM8G-25.000MHZ-B4Y-T
TABLE C-1: EVB-USB4X12 BILL OF MATERIALS (CONTINUED)Item Quantity Designator Description Manufacturer Manufacturer Part Number
EVB-USB4x12 Evaluation Board User’s Guide
DS50002889A-page 36 2019 Microchip Technology Inc.
NOTES:
2019 Microchip Technology Inc. DS50002889A-page 37
NOTES:
DS50002889A-page 38 2019 Microchip Technology Inc.
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05/14/19