MCP1630 1A Bias Supply Demo Board User's Guide (c) 2005 Microchip Technology Inc. DS51564A 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 our products. Attempts to break Microchip's code protection feature may be a violation of the Digital Millennium Copyright Act. If such acts allow unauthorized access to your software or other copyrighted work, you may have a right to sue for relief under that Act. Information contained in this publication regarding device applications and the like is provided only for your convenience and may be superseded by updates. It is your responsibility to ensure that your application meets with your specifications. MICROCHIP MAKES NO REPRESENTATIONS OR WARRANTIES OF ANY KIND WHETHER EXPRESS OR IMPLIED, WRITTEN OR ORAL, STATUTORY OR OTHERWISE, 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 Microchip's products as critical components in life support systems is not authorized except with express written approval by Microchip. No licenses are conveyed, implicitly or otherwise, under any Microchip intellectual property rights. Trademarks The Microchip name and logo, the Microchip logo, Accuron, dsPIC, KEELOQ, microID, MPLAB, PIC, PICmicro, PICSTART, PRO MATE, PowerSmart, rfPIC, and SmartShunt are registered trademarks of Microchip Technology Incorporated in the U.S.A. and other countries. AmpLab, FilterLab, Migratable Memory, MXDEV, MXLAB, PICMASTER, SEEVAL, SmartSensor and The Embedded Control Solutions Company are registered trademarks of Microchip Technology Incorporated in the U.S.A. Analog-for-the-Digital Age, Application Maestro, dsPICDEM, dsPICDEM.net, dsPICworks, ECAN, ECONOMONITOR, FanSense, FlexROM, fuzzyLAB, In-Circuit Serial Programming, ICSP, ICEPIC, Linear Active Thermistor, MPASM, MPLIB, MPLINK, MPSIM, PICkit, PICDEM, PICDEM.net, PICLAB, PICtail, PowerCal, PowerInfo, PowerMate, PowerTool, rfLAB, rfPICDEM, Select Mode, Smart Serial, SmartTel, Total Endurance and WiperLock 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. All other trademarks mentioned herein are property of their respective companies. (c) 2005, Microchip Technology Incorporated, Printed in the U.S.A., All Rights Reserved. Printed on recycled paper. Microchip received ISO/TS-16949:2002 quality system certification for its worldwide headquarters, design and wafer fabrication facilities in Chandler and Tempe, Arizona and Mountain View, California in October 2003. The Company's quality system processes and procedures are for its PICmicro(R) 8-bit MCUs, KEELOQ(R) 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. DS51564A-page ii (c) 2005 Microchip Technology Inc. MCP1630 1A BIAS SUPPLY DEMO BOARD USER'S GUIDE Table of Contents Preface ........................................................................................................................... 1 Chapter 1. Product Overview ........................................................................................ 5 1.1 1.2 1.3 Introduction ............................................................................................... 5 What is the MCP1630 1A Bias Supply Demo Board? .............................. 6 What the MCP1630 1A Bias Supply Demo Board Kit Includes ................ 6 Chapter 2. Installation and Operation .......................................................................... 7 2.1 2.2 2.3 Introduction ............................................................................................... 7 Features ................................................................................................... 7 Getting Started ......................................................................................... 8 Appendix A. Schematic and Layouts ........................................................................ 11 A.1 A.2 A.3 A.4 A.5 A.6 Introduction ............................................................................................. 11 Board Schematic .................................................................................. 12 Board - Assembly Drawing .................................................................. 13 Board - Top Overlay ............................................................................. 14 Board - Top Layer ................................................................................ 15 Board - Bottom Layer ......................................................................... 16 Appendix B. Bill-Of-Materials (BOM) ......................................................................... 17 Appendix C. Evaluation Board Firmware .................................................................. 19 C.1 Device Firmware ..................................................................................... 19 Worldwide Sales and Service .................................................................................... 20 (c) 2005 Microchip Technology Inc. DS51564A-page iii MCP1630 1A Bias Supply Demo Board User's Guide NOTES: DS51564A-page iv (c) 2005 Microchip Technology Inc. MCP1630 1A BIAS SUPPLY DEMO BOARD USER'S GUIDE Preface 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. INTRODUCTION This chapter contains general information that will be useful to know before using the MCP1630 1A Bias Supply Demo Board. Items discussed in this chapter include: * * * * * * Document Layout Conventions Used in this Guide Recommended Reading The Microchip Web Site Customer Support Document Revision History DOCUMENT LAYOUT This document describes how to use the MCP1630 1A Bias Supply Demo Board. The manual layout is as follows: * Chapter 1. "Product Overview" - Important information about the MCP1630 1A Bias Supply Demo Board. * Chapter 2. "Installation and Operation" - Includes a description of the demo board, as well as instructions on how to get started. * Appendix A. "Schematic and Layouts" - Shows the schematic and layout diagrams for the MCP1630 1A Bias Supply Demo Board. * Appendix B. "Bill-Of-Materials (BOM)" - Lists the parts used to build the MCP1630 1A Bias Supply Demo Board. * Appendix C. "Evaluation Board Firmware" - Provides information about the application firmware and the location of the source code. (c) 2005 Microchip Technology Inc. DS51564A-page 1 MCP1630 1A Bias Supply Demo Board User's Guide CONVENTIONS USED IN THIS GUIDE This manual uses the following documentation conventions: DOCUMENTATION CONVENTIONS Description Arial font: Italic characters Represents Referenced books Emphasized text A window A dialog A menu selection A field name in a window or dialog A menu path MPLAB(R) IDE User's Guide ...is the only compiler... the Output window the Settings dialog select Enable Programmer "Save project before build" A dialog button A tab A key on the keyboard Click OK Click the Power tab Press <Enter>, <F1> Italic Courier Sample source code Filenames File paths Keywords Command-line options Bit values Constants A variable argument Square brackets [ ] Optional arguments Curly brackets and pipe character: { | } Ellipses... Choice of mutually exclusive arguments; an OR selection Replaces repeated text #define START autoexec.bat c:\mcc18\h _asm, _endasm, static -Opa+, -Opa0, 1 0xFF, `A' file.o, where file can be any valid filename mcc18 [options] file [options] errorlevel {0|1} Initial caps Quotes Underlined, italic text with right angle bracket Bold characters Text in angle brackets < > Courier font: Plain Courier Represents code supplied by user DS51564A-page 2 Examples File>Save var_name [, var_name...] void main (void) { ... } (c) 2005 Microchip Technology Inc. Preface RECOMMENDED READING This user's guide describes how to use MCP1630 1A Bias Supply Demo Board. The following Microchip documents are available and recommended as supplemental reference resources. MCP1630 Data Sheet, "High-Speed, Microcontroller-Adaptable, Pulse Width Modulator", (DS21896) This data sheet provides detailed information regarding the MCP1630 product family. MCP1701 Data Sheet, "2 A Low-Dropout Positive Voltage Regulator", (DS21874) This data sheet provides detailed information regarding the MCP1701 product family. PIC10F200 Data Sheet, "6-Pin, 8-Bit Flash Microcontrollers", (DS41239) This data sheet provides detailed information regarding the PIC10F200 product family. THE MICROCHIP WEB SITE Microchip 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), technical support requests, online discussion groups, Microchip consultant program member listing * Business of Microchip - Product selector and ordering guides, latest Microchip press releases, listing of seminars and events, listings of Microchip sales offices, distributors and factory representatives (c) 2005 Microchip Technology Inc. DS51564A-page 3 MCP1630 1A Bias Supply Demo Board User's Guide CUSTOMER SUPPORT Users of Microchip products can receive assistance through several channels: * * * * * Distributor or Representative Local Sales Office Field Application Engineer (FAE) Technical Support Development Systems Information Line 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://support.microchip.com DOCUMENT REVISION HISTORY Revision A (June 2005) * Initial Release of this Document. DS51564A-page 4 (c) 2005 Microchip Technology Inc. MCP1630 1A BIAS SUPPLY DEMO BOARD USER'S GUIDE Chapter 1. Product Overview 1.1 INTRODUCTION The MCP1630 1A Bias Supply Demo Board is used to evaluate Microchip's MCP1630 in a SEPIC power converter application. As provided, the MCP1630 1A Bias Supply Demo Board generates a 3.3V or 5.0V output from an input voltage of 9V, +20%. The MCP1630 1A Bias Supply Demo Board provides a regulated output for load currents up to 1A. This chapter covers the following topics: * What is the MCP1630 1A Bias Supply Demo Board? * What the MCP1630 1A Bias Supply Demo Board Kit Includes 9V, +/- 20% Power Supply +5V 3 Selectable Output Voltage 2 1 Bias Supply Output System Load +3.3V Maximum Output Current = 1A FIGURE 1-1: (c) 2005 Microchip Technology Inc. MCP1630 1A Bias Supply Demo Board System Block Diagram. DS51564A-page 5 MCP1630 1A Bias Supply Demo Board User's Guide 1.2 WHAT IS THE MCP1630 1A BIAS SUPPLY DEMO BOARD? The MCP1630 1A Bias Supply Demo Board is a complete, step-down, switch-mode, dc-dc power converter. The MCP1630 1A Bias Supply Demo Board generates a regulated output voltage for systems requiring a bias of 3.3V or 5V at load currents up to 1A. Different output voltages can be obtained with minor modifications to the firmware and/or hardware. This board utilizes Microchip's MCP1630 (High-Speed PIC(R) MCU PWM MSOP8), MCP1701 (Low-Dropout Linear Regulator SOT-23A) and PIC10F200 (Flash MCU SOT23-6). The input voltage range for the demo board is 7.2V to 11.8V. The output is capable of providing up to 1A constant output current. An input power jack is provided to apply the input voltage to the bias supply. An output header is provided as a means to connect the external system load. A programming header is available for updating the firmware contained in the PIC10F200. 1.3 WHAT THE MCP1630 1A BIAS SUPPLY DEMO BOARD KIT INCLUDES This MCP1630 1A Bias Supply Demo Board Kit includes: * The MCP1630 1A Bias Supply Demo Board Board (102-00046) * MCP1630 1A Bias Supply Demo Board User's Guide (DS51564A). * MCP1630 Data Sheet, "High-Speed, Microcontroller-Adaptable, Pulse Width Modulator", (DS21896) * MCP1701 Data Sheet, "2 A Low-Dropout Positive Voltage Regulator", (DS21874) * PIC10F200 Data Sheet, "6-Pin, 8-Bit Flash Microcontrollers", (DS41239) DS51564A-page 6 (c) 2005 Microchip Technology Inc. MCP1630 1A BIAS SUPPLY DEMO BOARD USER'S GUIDE Chapter 2. Installation and Operation 2.1 INTRODUCTION The MCP1630 1A Bias Supply Demo Board demonstrates Microchip's MCP1630 high-speed Pulse Width Modulator (PWM) used in a step-down, switch-mode, dc-dc power converter. The MCP1630 is a high-speed, microcontroller-adaptable PWM. When used in conjunction with a microcontroller, the MCP1630 will control the power system duty cycle to provide output voltage or current regulation. The PIC10F200 microcontroller can be used to regulate output voltage or current, switching frequency and maximum duty cycle. The MCP1630 generates duty cycle and provides fast overcurrent protection based on various external inputs. External signals include the input oscillator, the reference voltage, the feedback voltage and the current sense. The output signal is a square-wave pulse. The power train used for the MCP1630 1A Bias Supply Demo Board is a Single-Ended Primary Inductive Converter (SEPIC). 2.2 FEATURES The MCP1630 1A Bias Supply Demo Board has the following features: * * * * * * * * * * * Selectable regulated output voltage: 3.3V or 5.0V Maximum output current: 1A Foldback current limiting Cycle-by-cycle peak current limit Output present indicator Soft-start capability by holding the reference voltage low during power-up The MCP1630 1A Bias Supply Demo Board has the flexibility to modify the regulated output voltage, optimize the soft-start time or disable the output by modifying the firmware contained in the PIC10F200 Proprietary features can be added by modifying the firmware contained in the PIC10F200 The factory-programmed source code is available Adaptable to environmental effects such as ambient temperature Typical efficiency: 85% (c) 2005 Microchip Technology Inc. DS51564A-page 7 MCP1630 1A Bias Supply Demo Board User's Guide 2.3 GETTING STARTED The MCP1630 1A Bias Supply Demo Board is fully assembled and tested for generating a regulated, selectable 3.3V or 5.0V output voltage. The MCP1630 1A Bias Supply Demo Board requires the use of an external input voltage source (+9V, +20%). 2.3.1 Power Input and Output Connections Powering the MCP1630 1A Bias Supply Demo Board 1. Apply the input voltage to the input power jack (J2). The input voltage source should be limited to the 0V to +11.8V range. For normal operation, the input voltage should be between +7.2V and +11.8V, not to exceed an absolute maximum of +12V. 2. The inside portion of the input power plug must be positive. The outer jacket of the input power plug must be negative. Refer to Figure 2-1. J2 C3 L1 C4 D1 C1 C2 Input Power Jack R2 D2 C5 - C6 + J1 Q1 R1 C7 C8 R3 R5 U1 C9 R9 U2 R11 R4 R6 R8 R10 C11 R13 R12 R7 U3 C10 5.0V 3.3V J3 J4 Regulated Output Voltage Terminal Block Output Voltage Selection Header Programming Header FIGURE 2-1: Set-Up Configuration Diagram. Apply the load to the regulated output voltage terminal block 1. To apply a load to the MCP1630 1A Bias Supply Demo Board, the positive side (+) of the load should be connected to pin 2 of J1. The negative side (-) of the load should be connected to pin 1 of J1. Care should be taken when using electronic loads. DS51564A-page 8 (c) 2005 Microchip Technology Inc. Installation and Operation Regulated output voltage selection 1. The regulated output voltage can be selected to be either 3.3V or 5.0V. The regulated output voltage is selected by placing a shorting jumper on the Output Voltage Selection Header (J3). By shorting pins 1 and 2, the regulated output voltage will be 3.3V. By shorting pins 2 and 3, the regulated output voltage will be 5.0V. 2. If a shorting jumper is not present, the regulated output voltage will default to 5.0V. 3. The output voltage selection input is read by the PIC10F200 at power-up only. Therefore, the output voltage cannot be changed dynamically without modification of the factory-installed firmware. Input power must be removed or cycled in order for a change to take effect. Output voltage present indication The MCP1630 1A Bias Supply Demo Board has a LED to indicate the presence of output voltage. The LED will be illuminated when the output voltage is present. Programming Header J4 is provided for in-system circuit programming. (c) 2005 Microchip Technology Inc. DS51564A-page 9 MCP1630 1A Bias Supply Demo Board User's Guide NOTES: DS51564A-page 10 (c) 2005 Microchip Technology Inc. MCP1630 1A BIAS SUPPLY DEMO BOARD USER'S GUIDE Appendix A. Schematic and Layouts A.1 INTRODUCTION This appendix contains the following schematics and layouts for the MCP1630 1A Bias Supply Demo Board: * * * * * Board Schematic Board - Assembly Drawing Board - Top Overlay Board - Top Layer Board - Bottom Layer (c) 2005 Microchip Technology Inc. DS51564A-page 11 MCP1630 1A Bias Supply Demo Board User's Guide BOARD SCHEMATIC A A K K A.2 5 1 6 2 2 OUT 1 GND VIN 3 3 4 DS51564A-page 12 (c) 2005 Microchip Technology Inc. Schematic and Layouts BOARD - ASSEMBLY DRAWING . 3.3V J3 J4 5.0V C10 R7 U3 C9 R9 J2 U2 C5 C3 C6 R11 D1 C4 L1 Q1 R1 C7 C8 R3 R5 U1 C1 C2 R2 D2 R4 R6 R8 R10 C11 R13 R12 J1 . . . A.3 (c) 2005 Microchip Technology Inc. DS51564A-page 13 MCP1630 1A Bias Supply Demo Board User's Guide A.4 BOARD - TOP OVERLAY J2 C3 L1 C4 D1 C1 C2 J1 R2 D2 C5 C6 R5 U1 C9 R9 U2 R11 Q1 R1 C7 C8 R3 R4 R6 R8 R10 C11 R13 R12 R7 U3 C10 5.0V 3.3V J3 J4 Scale = 2:1 DS51564A-page 14 (c) 2005 Microchip Technology Inc. Schematic and Layouts A.5 BOARD - TOP LAYER Scale = 2:1 (c) 2005 Microchip Technology Inc. DS51564A-page 15 MCP1630 1A Bias Supply Demo Board User's Guide A.6 BOARD - BOTTOM LAYER Scale = 2:1 DS51564A-page 16 (c) 2005 Microchip Technology Inc. MCP1630 1A BIAS SUPPLY DEMO BOARD USER'S GUIDE Appendix B. Bill-Of-Materials (BOM) TABLE B-1: Qty. BILL-OF-MATERIALS (BOM) Reference Description Mfgr. (R) Part Number Panasonic -ECG ECJ-2FB0J106M 10 F, X5R Ceramic, 25V, 1206 Panasonic-ECG ECJ-3YB1E106M 1 F, X5R Ceramic, 16V, 0805 Panasonic-ECG ECJ-2FB1C105K 2 C1,C2 10 F, X5R Ceramic, 6.3V, 0805 1 C3 1 C4 (R) 1 C5 1 F, Tantalum, 16V, 1206 Kemet Electronics(R) T491A105K016AS 1 C6 0.1 F, X7R Ceramic, 16V, 0603 Panasonic-ECG ECJ-1VB1C104K 1 C7 9 pF, NPO Ceramic, 50V, 0603 Panasonic-ECG ECJ-1VC1H090D 1 C8 150 pF, NPO Ceramic, 50V, 0603 Panasonic-ECG ECJ-1VC1H151J 1 C9 1 F, X7R Ceramic, 6.3V, 0603 Panasonic-ECG ECJ-1VB0J105K 1 C10 2700 pF, X7R Ceramic, 50V, 0603 Panasonic-ECG ECJ-1VB1H272K 1 C11 1500 pF, X7R Ceramic, 50V, 0603 Panasonic-ECG ECJ-1VB1H152K 1 D1 1.5A, 30V Schottky Diode, SMA Toshiba(R) CRS08(TE85L) Super Red LED, 0603 Lumex(R) SML-LX0603SRW-TR 1 D2 Opto/Components 1 J1 Connector Terminal Block, 2 Pos., 2.54mm, TB254-2 Phoenix Contact 1725656 1 J2 Connector Power Jack, 2.5 x 5.5 mm, SMD CUI Inc. PJ-002B-SMT Molex(R)/Waldom(R) 22-03-2031 1 J3 Connector Header, 3 Pos., 2.54 mm, HDR1X3 1 J4 Connector Header, 5 Pos., 2.54 mm, HDR1X5 Molex 22-03-2051 (R) 1 L1 8.2 H, Coupled Inductor, DRQ74 Coiltronics DRQ74-8R2 1 Q1 Dual N-Channel MOSFET, SOT23-6 Siliconix Si3900DV-T1 1 R1 22.1, 1/16W, 1%, Chip Resistor, 0603 Panasonic-ECG ERJ-3EKF22R1V 3 R2,R8,R10 1.00k, 1/16W, 1%, Chip Resistor, 0603 Panasonic-ECG ERJ-3EKF1001V 1 R3 4.75k, 1/16W, 1%, Chip Resistor, 0603 Panasonic-ECG ERJ-3EKF4751V 1 R4 10.0, 1/16W, 1%, Chip Resistor, 0603 Panasonic-ECG ERJ-3EKF10R0V 1 R5 787k, 1/16W, 1%, Chip Resistor, 0603 Panasonic-ECG ERJ-3EKF7873V 2 R6,R11 15.0k, 1/16W, 1%, Chip Resistor, 0603 Panasonic-ECG ERJ-3EKF1502V 2 R7,R9 7.87k, 1/16W, 1%, Chip Resistor, 0603 Panasonic-ECG ERJ-3EKF7871V 1 R12 47.5k, 1/16W, 1%, Chip Resistor, 0603 Panasonic-ECG ERJ-3EKF4752V 1 R13 100k, 1/16W, 1%, Chip Resistor, 0603 Panasonic-ECG ERJ-3EKF1003V 1 U1 5.0V, 250 mA, Voltage Regulator, SOT23 Microchip Technology Inc. MCP1701T-5002I/CB 1 U2 PWM Building Block, MSOP8 Microchip Technology Inc. MCP1630-E/MS 1 U3 8-Bit Flash Microcontroller, SOT23-6 Microchip Technology Inc. PIC10F200T-I/OT Shorting Jumper, 2 Pos., 2.54mm SullinsTM STC025YAN 1 (c) 2005 Microchip Technology Inc. DS51564A-page 17 MCP1630 1A Bias Supply Demo Board User's Guide NOTES: DS51564A-page 18 (c) 2005 Microchip Technology Inc. MCP1630 1A BIAS SUPPLY DEMO BOARD USER'S GUIDE Appendix C. Evaluation Board Firmware C.1 DEVICE FIRMWARE For the latest copy of the MCP1630 1A Bias Supply Demo Board firmware, visit our web site at www.microchip.com. (c) 2005 Microchip Technology Inc. DS51564A-page 19 WORLDWIDE SALES AND SERVICE AMERICAS ASIA/PACIFIC ASIA/PACIFIC EUROPE Corporate Office 2355 West Chandler Blvd. Chandler, AZ 85224-6199 Tel: 480-792-7200 Fax: 480-792-7277 Technical Support: http://support.microchip.com Web Address: www.microchip.com Australia - Sydney Tel: 61-2-9868-6733 Fax: 61-2-9868-6755 India - Bangalore Tel: 91-80-2229-0061 Fax: 91-80-2229-0062 China - Beijing Tel: 86-10-8528-2100 Fax: 86-10-8528-2104 India - New Delhi Tel: 91-11-5160-8631 Fax: 91-11-5160-8632 Austria - Weis Tel: 43-7242-2244-399 Fax: 43-7242-2244-393 Denmark - Ballerup Tel: 45-4450-2828 Fax: 45-4485-2829 China - Chengdu Tel: 86-28-8676-6200 Fax: 86-28-8676-6599 Japan - Kanagawa Tel: 81-45-471- 6166 Fax: 81-45-471-6122 France - Massy Tel: 33-1-69-53-63-20 Fax: 33-1-69-30-90-79 China - Fuzhou Tel: 86-591-8750-3506 Fax: 86-591-8750-3521 Korea - Seoul Tel: 82-2-554-7200 Fax: 82-2-558-5932 or 82-2-558-5934 Germany - Ismaning Tel: 49-89-627-144-0 Fax: 49-89-627-144-44 Atlanta Alpharetta, GA Tel: 770-640-0034 Fax: 770-640-0307 Boston Westborough, MA Tel: 774-760-0087 Fax: 774-760-0088 Chicago Itasca, IL Tel: 630-285-0071 Fax: 630-285-0075 Dallas Addison, TX Tel: 972-818-7423 Fax: 972-818-2924 Detroit Farmington Hills, MI Tel: 248-538-2250 Fax: 248-538-2260 Kokomo Kokomo, IN Tel: 765-864-8360 Fax: 765-864-8387 China - Hong Kong SAR Tel: 852-2401-1200 Fax: 852-2401-3431 China - Shanghai Tel: 86-21-5407-5533 Fax: 86-21-5407-5066 China - Shenyang Tel: 86-24-2334-2829 Fax: 86-24-2334-2393 China - Shenzhen Tel: 86-755-8203-2660 Fax: 86-755-8203-1760 China - Shunde Tel: 86-757-2839-5507 Fax: 86-757-2839-5571 China - Qingdao Tel: 86-532-502-7355 Fax: 86-532-502-7205 Malaysia - Penang Tel:011-604-646-8870 Fax:011-604-646-5086 Philippines - Manila Tel: 011-632-634-9065 Fax: 011-632-634-9069 Singapore Tel: 65-6334-8870 Fax: 65-6334-8850 Italy - Milan Tel: 39-0331-742611 Fax: 39-0331-466781 Netherlands - Drunen Tel: 31-416-690399 Fax: 31-416-690340 England - Berkshire Tel: 44-118-921-5869 Fax: 44-118-921-5820 Taiwan - Kaohsiung Tel: 886-7-536-4818 Fax: 886-7-536-4803 Taiwan - Taipei Tel: 886-2-2500-6610 Fax: 886-2-2508-0102 Taiwan - Hsinchu Tel: 886-3-572-9526 Fax: 886-3-572-6459 Los Angeles Mission Viejo, CA Tel: 949-462-9523 Fax: 949-462-9608 San Jose Mountain View, CA Tel: 650-215-1444 Fax: 650-961-0286 Toronto Mississauga, Ontario, Canada Tel: 905-673-0699 Fax: 905-673-6509 04/20/05 DS51564A-page 20 (c) 2005 Microchip Technology Inc. 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