PIC18F87J72 Evaluation Board User's Guide (c) 2011 Microchip Technology Inc. DS51990A 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in this publication regarding device applications and the like is provided only for your convenience and may be superseded by updates.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 devices in life support and/or safety applications is entirely at the buyer's risk, and the buyer agrees to defend, indemnify and hold harmless Microchip from any and all damages, claims, suits, or expenses resulting from such use. No licenses are conveyed, implicitly or otherwise, under any Microchip intellectual property rights. Trademarks The Microchip name and logo, the Microchip logo, dsPIC, KEELOQ, KEELOQ logo, MPLAB, PIC, PICmicro, PICSTART, PIC32 logo, rfPIC and UNI/O are registered trademarks of Microchip Technology Incorporated in the U.S.A. and other countries. FilterLab, Hampshire, HI-TECH C, Linear Active Thermistor, MXDEV, MXLAB, SEEVAL 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, chipKIT, chipKIT logo, CodeGuard, dsPICDEM, dsPICDEM.net, dsPICworks, dsSPEAK, ECAN, ECONOMONITOR, FanSense, HI-TIDE, In-Circuit Serial Programming, ICSP, Mindi, MiWi, MPASM, MPLAB Certified logo, MPLIB, MPLINK, mTouch, Omniscient Code Generation, PICC, PICC-18, PICDEM, PICDEM.net, PICkit, PICtail, REAL ICE, rfLAB, Select Mode, Total Endurance, TSHARC, UniWinDriver, WiperLock 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. All other trademarks mentioned herein are property of their respective companies. (c) 2011, Microchip Technology Incorporated, Printed in the U.S.A., All Rights Reserved. Printed on recycled paper. ISBN: 978-1-61341-304-3 Microchip received ISO/TS-16949:2002 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(R) MCUs and dsPIC(R) DSCs, 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. DS51990A-page 2 (c) 2011 Microchip Technology Inc. PIC18F87J72 EVALUATION BOARD USER'S GUIDE Table of Contents Preface ........................................................................................................................... 5 Introduction............................................................................................................ 5 Document Layout .................................................................................................. 6 Recommended Reading........................................................................................ 7 The Microchip Web Site ........................................................................................ 7 Customer Support ................................................................................................. 8 Document Revision History ................................................................................... 8 Chapter 1. Product Overview 1.1 Introduction ..................................................................................................... 9 1.2 PIC18F87J72 Evaluation Board Functionality and Features .......................... 9 1.3 PIC18F87J72 EVALUATION BOARD KIT CONTENTS .............................. 10 Chapter 2. Hardware Description 2.1 Introduction ................................................................................................... 11 Chapter 3. PIC18F87J72 Evaluation Board Features 3.1 Introduction ................................................................................................... 17 Chapter 4. PIC18F87J72 Evaluation Board Firmware Flowchart 4.1 Introduction ................................................................................................... 23 Chapter 5. PIC18F87J72 Evaluation Board Lab Test Results 5.1 Introduction ................................................................................................... 31 Chapter 6. PIC18F87J72 Evaluation Board GUI 6.1 Introduction ................................................................................................... 35 (c) 2011 Microchip Technology Inc. DS51990A-page 3 PIC18F87J72 EVALUATION BOARD USER'S GUIDE Appendix A. Schematics and Layouts A.1 Introduction .................................................................................................. 37 A.2 Board - Schematic 1 .................................................................................... 38 A.3 Board - Schematic 2 ................................................................................... 39 A.4 Board - Schematic 3 .................................................................................... 40 A.5 Board - Schematic 4 .................................................................................... 41 A.6 Board - PCB Front Page ............................................................................. 42 A.7 Board - PCB Top Silk ................................................................................. 43 A.8 Board - PCB Top Layer ............................................................................... 44 A.9 Board - PCB Bottom Layer .......................................................................... 45 A.10 Board - PCB Bottom Silk ........................................................................... 46 A.11 Board - PCB L1 Ground ............................................................................ 47 A.12 Board - PCB L2 VDD ................................................................................ 48 Appendix B. Bill of Materials (BOM) Worldwide Sales and Service .....................................................................................52 DS51990A-page 4 (c) 2011 Microchip Technology Inc. PIC18F87J72 EVALUATION 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. For the most up-to-date information on development tools, see the MPLAB(R) IDE on-line help. Select the Help menu, and then Topics to open a list of available on-line help files. INTRODUCTION This chapter contains the general information that will be useful to know before using the PIC18F87J72 Evaluation Board. Items discussed in this chapter include: * * * * * Document Layout Recommended Reading The Microchip Web Site Customer Support Document Revision History (c) 2011 Microchip Technology Inc. DS51990A-page 5 PIC18F87J72 Evaluation Board User's Guide DOCUMENT LAYOUT This document describes how to use the PIC18F87J72 Evaluation Board as a development tool to emulate and debug firmware on a target board. The manual layout is as follows: * Chapter 1. "Product Overview" - Provides a brief overview of the PIC18F87J72 Evaluation Board, its features and uses. * Chapter 2. "Hardware Description" - Provides a detailed description of the PIC18F87J72 Evaluation Board hardware features. * Chapter 3. "PIC18F87J72 Evaluation Board Features" - Provides details on how to use and configure the PIC18F87J72 Evaluation Board. * Chapter 4. "PIC18F87J72 Evaluation Board Firmware Flowchart" - Provides the flow charts for various functions and routines in the firmware. * Chapter 5. "PIC18F87J72 Evaluation Board Lab Test Results" - Provides the various lab test results obtained when working on a debugging environment using MPLAB(R) IDE. * Chapter 6. "PIC18F87J72 Evaluation Board GUI" - Provides details on the Graphical User Interface (GUI) used for plotting the various signals in time and frequency domain for spectral analysis. * Appendix A. "Schematics and Layouts" - Provides schematic and board layouts of the PIC18F87J72 Evaluation Board. * Appendix B. "Bill of Materials (BOM)" - Provides details of all the components with part numbers and designators used for the PIC18F87J72 Evaluation Board. DS51990A-page 6 (c) 2011 Microchip Technology Inc. Preface RECOMMENDED READING This user's guide describes how to use PIC18F87J72 Evaluation Board. Other useful documents are listed below. The following Microchip documents are available and recommended as supplemental reference resources. MPLAB(R) IDE Simulator, Editor User's Guide (DS51025) Refer to this document for more information on installation and implementation of the MPLAB Integrated Development Environment (IDE) software. THE MICROCHIP WEB SITE Microchip provides online support through 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) 2011 Microchip Technology Inc. DS51990A-page 7 PIC18F87J72 Evaluation 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 2011) This is the initial release of this document. DS51990A-page 8 (c) 2011 Microchip Technology Inc. PIC18F87J72 EVALUATION BOARD USER'S GUIDE Chapter 1. Product Overview 1.1 INTRODUCTION This chapter provides an overview of the PIC18F87J72 Evaluation Board. This board is used as a development tool and as evaluation kit for PIC18F87J72 based applications. Topics discussed in this chapter include: * Development Kit Contents * Evaluation Board Functionality and Features 1.2 PIC18F87J72 EVALUATION BOARD FUNCTIONALITY AND FEATURES The PIC18F87J72 Evaluation Board provides a platform for developing and evaluating applications which are based on the PIC18F87J72 device. These applications can range from accurate measurement of low signals like an output signal of a load cell to processing of information for metering and other metrology applications like energy metering, heatmeter and so on. The PIC18F87J72 microcontroller has an 8-bit core processor along with many advanced peripherals like 12-bit SAR-based ADC, two 24-bit delta sigma ADCs and Charge Time Measurement unit (CTMU) for temperature measurement or implementation of touch keys. PIC18F87J72 also has built-in Real Time Clock and Calendar (RTCC) with calibration registers for time stamping the measured data, and a Liquid Crystal Display (LCD) driver for a display up to 132 pixels. The PIC18F87J72 Evaluation Board has the following features to develop and test user applications: * Easy connection for low and high voltage signals. Signals from variety of sensors can be connected to this board. * Touch keys to select different parameters of the of the 24-bit Delta Sigma ADC, like Over Sampling Ratio (OSR), Resolution, and Channel gain. * Direct LCD display, driven from the COM/SEG pins of PIC18F87J72 * Real Time Clock * Temperature Measurement option with CTMU The PIC18F87J72 Evaluation Board can be connected to the GUI, supplied along with the board, to analyze the synchronous sampling, 24-bit, delta sigma ADCs. The ADCs have 90 dB SINAD and -104dB THD (up to the 35th harmonic) for each channel, enabling highly accurate energy metering and other low signal level designs. With less than 10 mVRMS output noise and a programmable gain amplifier of up to 32 V/V, these 24-bit ADCs are capable of interfacing to a large variety of small signal sensors, as well as voltage and current sensors, including shunts, Current Transformers (CT), Rogowski coils, Hall Effect sensors and load cells. (c) 2011 Microchip Technology Inc. DS51990A-page 9 PIC18F87J72 Evaluation Board User's Guide 1.3 PIC18F87J72 EVALUATION BOARD KIT CONTENTS This PIC18F87J72 Evaluation Board kit includes: * * * * * PIC18F87J72 Evaluation Board Pre-Programmed PIC18F87J72 microcontroller on board MCP2200 device on board GUI LAB VIEW installation software for the GUI - Visa 441 runtime - LVRTE86std * Mini Universal Serial Bus (USB) connecting cable DS51990A-page 10 (c) 2011 Microchip Technology Inc. PIC18F87J72 EVALUATION BOARD USER'S GUIDE Chapter 2. Hardware Description 2.1 INTRODUCTION This chapter describes the various sections of the hardware present on the evaluation board. It also describes the different configurations possible for operating the evaluation board, depending upon the input voltage and current specifications. Figure 2-1 shows the overall layout of the PIC18F87J72 Evaluation Board where the different hardware sections are indicated by numbers. Table 2-1 lists the descriptions for each hardware component. 5 3 2 4 1 13 8 6 11 10 12 7 9 Legend: 1 PIC18F87J72 microcontroller 8 9V battery connector 2 Seven segment LCD 9 MCP2200 - USB to Universal Asynchronous receiver/transmitter (UART) serial converter 3 High voltage section with connectors 10 Mini B USB receptacle 4 RJ11 connector 11 9V power supply jack 5 Load Cell connector 12 32.768 kHz crystal 6 PICtailTM connector 13 10 MHz crystal 7 Touch sensitive keys FIGURE 2-1: Layout of the PIC18F87J72 Evaluation Board. (c) 2011 Microchip Technology Inc. DS51990A-page 11 PIC18F87J72 Evaluation Board User's Guide TABLE 2-1: SI NO BOARD LAYOUT AND COMPONENTS Section or Component Functionality 1 PIC18F87J72 microcontroller Main controller for all functions on the board 2 Seven segment LCD To display time and other configuration features like OSR, Gain, Bit Width 3 High voltage section with connectors For connecting universal input voltage to the board (when not using 9V supply or battery) 4 RJ11 connector For debugging and programming purpose 5 Load Cell connector Optional provision to connect an external load cell output to the ADC input channels 6 PICtailTM connector To connect to other application-specific daughter cards 7 Touch sensitive keys Touch sense switches for changing configuration of Sigma-Delta ADC 8 9V battery connector To connect a 9V battery when powering the board through it 9 MCP2200 - USB to UART serial converter To communicate with the GUI 10 Mini B USB receptacle To connect the USB port of the computer to the evaluation board 11 9V power supply jack 9V power supply to the board 12 32.768 kHz crystal Clock to the internal Real-Time Clock and Calendar (RTCC) 13 10 MHz crystal External Clock to the main controller 2.1.1 PIC18F87J72 Evaluation Board Jumper Settings Table 2-2 shows the various jumpers available on the PIC18F87J72 Evaluation Board. By connecting the jumper pins appropriately, different configurations can be achieved on the board. Care must be taken regarding the voltage level before placing these jumpers. Further sections in this document describe what precautions need to be ensured while connecting these jumpers. TABLE 2-2: DS51990A-page 12 JUMPERS ON THE EVALUATION BOARD SI NO Device Description 1 JP1 Selection between high voltage and low voltage input on channel CH0 2 JP2 To ground Pin 1 of J4 3 JP3 Used for burden connections when CT output is connected to J4 4 JP4 To ground Pin 3 of J4 5 JP5 To ground Pin 1 of J5 6 JP6 Used for burden connections when CT output is connected to J5 7 JP7 To ground Pin 3 of J5 8 JP8 Selection between high voltage and low voltage input on channel CH1 (c) 2011 Microchip Technology Inc. Hardware Description 2.1.2 Measurement of High Voltages The circuit diagrams in the schematics section of Appendix A. "Schematics and Layouts", provide details on the resistor values used for dividing the network of the input voltage. Table 2-3 provides a quick reference to resistor values in the high voltage section. TABLE 2-3: RESISTORS FOR HIGH VOLTAGE MEASUREMENT Register Value (K) R23 and R30 330 R24 and R31 330 R25 and R32 120 R33 and R35 1 R37 and R39 1 When measuring a high voltage signal on the input terminals of channels CH0 and CH1, refer to Table 2-4 and Table 2-5. These tables provide the configuration of jumpers, along with the amplitude of the voltage available at the various points. The high voltage can be in the universal range of input voltage ranging from 85-265 Voltsrms (Vrms) at 50 Hz or 60 Hz. TABLE 2-4: JUMPER SETTINGS FOR HIGH VOLTAGE MEASUREMENT ON CH0 CH0 Jumper Position Voltage (Vrms) JP1 JP2 JP3 ADC JP4 ADC I/P (Vrms) ADC I/P (Vpeak) 80 Short 1-2 Open Open Short 0.10230 0.14468 110 Short 1-2 Open Open Short 0.14066 0.19893 220 Short 1-2 Open Open Short 0.28133 0.39786 270 Short 1-2 Open Open Short 0.34527 0.48828 280 Short 1-2 Open Open Short 0.35806 0.50637 TABLE 2-5: JP8 JP5 JP6 JP7 ADC I/P (Vrms) ADC I/P (Vpeak) 80 Short 1-2 Open Open Short 0.10230 0.14468 Short 1-2 Open Open Short 0.14066 0.19893 220 Short 1-2 Open Open Short 0.28133 0.39786 270 Short 1-2 Open Open Short 0.34527 0.48828 Short 1-2 Open Open Short 0.35806 0.50637 280 2: 3: 4: 5: Max Differential ADC I/P is 0.5V ADC 110 Note 1: Internal Gain of 2 can be used for better resolution JUMPER SETTINGS FOR HIGH VOLTAGE MEASUREMENT ON CH1 CH1 Jumper Position Voltage (Vrms) Remark Remark Internal Gain of 2 can be used for better resolution Max Differential ADC I/P is 0.5V The precautions given need to be strictly adhered to, in order to avoid any damage to the evaluation board and prevent electric shock hazard. Input high voltage AC signal can be applied between pins 1 and 2 of the connector J4 or J5. The resistors R26 and R27 should not be populated when pins 1 and 2 of J4 are connected to a high voltage. The resistors R28 and R29 should not be populated when pins 1 and 2 of J5 are connected to a high voltage. The resistors R26, R27, R28 and R29 can be used only when CT outputs are connected to the connectors J4 and J5. In this case, these resistors act as a burden resistor to the CT secondary winding. (c) 2011 Microchip Technology Inc. DS51990A-page 13 PIC18F87J72 Evaluation Board User's Guide 2.1.3 Measurement of Low Voltages The circuit diagrams in the schematics section of Appendix A. "Schematics and Layouts", provide details on the resistor values used for the low voltage circuit. Table 2-6 provides a quick reference to resistor values in the low voltage section. TABLE 2-6: RESISTORS FOR LOW VOLTAGE MEASUREMENT Register Value (K) R34 and R36 1 R33 and R35 1 R37 and R39 1 R38 and R40 1 When measuring a low voltage signal on the input terminals of channels CH0 and CH1, refer to Table 2-7 and Table 2-8. These tables provide the configuration of jumpers, along with the amplitude of the voltage available at the various points. The low voltage signal can be either an AC signal, a DC signal or a signal of any arbitrary wave shape. TABLE 2-7: JUMPER SETTINGS FOR LOW VOLTAGE MEASUREMENT ON CH0 CH0 Jumper Position Voltage (Vrms) JP1 JP2 JP3 ADC JP4 ADC I/P (Vrms) ADC I/P (Vpeak) Remark Internal Gain of 2 can be used for better resolution 0.1 Short 2-3 Open Open Short 0.05000 0.05000 0.2 Short 2-3 Open Open Short 0.10000 0.10000 0.5 Short 2-3 Open Open Short 0.25000 0.25000 1 Short 2-3 Open Open Short 0.50000 0.50000 1.1 Short 2-3 Open Open Short 0.55000 0.55000 TABLE 2-8: Max Differential ADC I/P is 0.5V JUMPER SETTINGS FOR LOW VOLTAGE MEASUREMENT ON CH1 CH1 Jumper Position ADC Voltage (Vrms) JP8 JP5 JP6 JP7 ADC I/P (Vrms) ADC I/P (Vpeak) Remark 0.1 Short 2-3 Open Open Short 0.05000 0.05000 0.2 Short 2-3 Open Open Short 0.10000 0.10000 Internal Gain of 2 can be used for better resolution 0.5 Short 2-3 Open Open Short 0.25000 0.25000 1 Short 2-3 Open Open Short 0.50000 0.50000 1.1 Short 2-3 Open Open Short 0.55000 0.55000 Note 1: Max Differential ADC I/P is 0.5V Input low voltage signal can be applied between pins 1 and 2 of the connector J4 or J5. DS51990A-page 14 (c) 2011 Microchip Technology Inc. Hardware Description 2.1.4 Measurement of Current Signals The circuit diagrams in the schematics section of Appendix A. "Schematics and Layouts", provide details on the resistor values used for the current measurement circuit. Table 2-9 provides a quick reference to resistor values while measuring the current signals. The output of Current Transformers (CTs) can be connected to the input connector pins. TABLE 2-9: RESISTORS FOR LOW VOLTAGE MEASUREMENT Register Value (K) R26 and R28 0.063 R27 and R29 0.063 R34 and R36 1 R33 and R35 1 R37 and R39 1 R38 and R40 1 When measuring a current signal on the input terminals of channels CH0 and CH1, refer to Table 2-10 and Table 2-11. These tables provide the configuration of jumpers, along with the amplitude of the voltage available at the various points. TABLE 2-10: JUMPER SETTINGS FOR CURRENT MEASUREMENT ON CH0 CH0 Jumper Position ADC CT Primary Current (Irms-A) JP1 JP2 JP3 JP4 ADC I/P (Vrms) ADC I/P (Vpeak) 0.1 Short 2-3 Open Short Open 0.00063 0.00089 0.5 Short 2-3 Open Short Open 0.00315 0.00445 1 Short 2-3 Open Short Open 0.0063 0.00891 10 Short 2-3 Open Short Open 0.063 0.08910 20 Short 2-3 Open Short Open 0.126 0.17819 30 Short 2-3 Open Short Open 0.189 0.26729 (c) 2011 Microchip Technology Inc. Remark Internal Gain of 2 can be used for better resolution Max Differential ADC I/P is 0.5V DS51990A-page 15 PIC18F87J72 Evaluation Board User's Guide TABLE 2-11: JUMPER SETTINGS FOR CURRENT MEASUREMENT ON CH1 CH1 Jumper Position ADC CT Primary Current (Irms-A) JP1 JP2 JP3 JP4 ADC I/P (Vrms) ADC I/P (Vpeak) Remark 0.1 Short 2-3 Open Short Open 0.00063 0.00089 0.5 Short 2-3 Open Short Open 0.00315 0.00445 Internal Gain of 2 can be used for better resolution 1 Short 2-3 Open Short Open 0.0063 0.00891 10 Short 2-3 Open Short Open 0.063 0.08910 20 Short 2-3 Open Short Open 0.126 0.17819 30 Short 2-3 Open Short Open 0.189 0.26729 Note 1: 2: 3: 4: Max Differential ADC I/P is 0.5V The precautions given need to be strictly adhered to, in order to avoid any damage to the evaluation board and prevent electric shock hazard. I/P CT Secondary is connected between pins 1 and 3 of J4 and J5. The resistors R26, R27, R28 and R29 need to be populated. These resistors act as burden resistors for CT secondary. The calculations given in Table 2-10 and Table 2-11are true for a CT ratio of 1:2500 and a burden resistance of 31.5(). DS51990A-page 16 (c) 2011 Microchip Technology Inc. PIC18F87J72 EVALUATION BOARD USER'S GUIDE Chapter 3. PIC18F87J72 Evaluation Board Features 3.1 INTRODUCTION This chapter provides a brief description on how to use the PIC18F87J72 Evaluation Board for the measurement and analysis of various signals. It also describes the process of the demo and explains various configuration changes for observing the response using the PIC18F87J72 Evaluation Board. Figure 3-1 shows the PIC18F87J72 Evaluation Board with the 9V supply connected to the input jack. The initial set up of the evaluation board involves connecting the supply to the input jack of the board. This provides the required supply to the evaluation board. Alternatively, the 9V battery can be connected to power the board. In addition, the USB cable from the computer is connected to the mini USB connector on the board. This is used for transmitting and receiving data to and from the board, to and from the GUI tool. The input signal can be connected to connectors J4 and J5. If the microcontroller is already programmed, then the program will start executing when the supply is turned on. Display showing the configured OSR Connect I/P Signal RJ11 (J4 and J5) connector 9V Supply Mini USB Press S1 to configure OSR FIGURE 3-1: PIC18F87J72 Evaluation Board and OSR Configuration. (c) 2011 Microchip Technology Inc. DS51990A-page 17 PIC18F87J72 Evaluation Board User's Guide If the evaluation board is used in programmer mode, then the waveforms and the response can be observed on the GUI. If the evaluation board is used in debugging mode, using the MPLAB IDE, then the user can see the response on the Data Monitor and Control Interface (DMCI) window. For debugging, the Real ICE/ICD debugger and programmer is connected to the RJ11 connector. After the software is compiled and programmed to the PIC18F87J72 device, the program can be executed. The LCD display on the board will indicate the time and the waveforms that can be observed on the GUI window or DMCI. The LCD display on the board will indicate the time. The various waveforms applied at the input can be observed on the GUI or DMCI. Various changes to the device configuration can be done using the touch sensitive keys S1, S2, S3 and S4. The on-chip CTMU peripheral is used for all the touch-sensitive keys. Press the key S1, to change the Over Sampling Ratio (OSR) as shown in Figure 3-1. There are four OSR configurations that can be created using S1. Each press of the key S1 will change the configuration of the sigma delta ADC with OSR values from a value of 256, 128, 64 and 32. The time from the RTCC can also be displayed using the key S1 as shown in Figure 3-2. The RTCC date and time can be set using the following steps: * Press the keys S2 and S4 simultaneously to enter into the RTCC date setting mode. The date field on the LCD will start blinking. * The date can be changed by pressing the key S4 for incrementing and S2 for decrementing. The key S1 can be used to set the day, month and year fields. * Press the keys S1 and S2 simultaneously, to enter into the RTCC time setting mode. The time field on the LCD will start blinking. * The time can be changed by pressing the key S4 for incrementing and S2 for decrementing. The key S1 can be used to set the hour, minute and second fields. By pressing the key S1 repeatedly, the OSR configurations will sequentially change from 256 to 32 and then back to 256. Display showing Time Press S1 to view time FIGURE 3-2: DS51990A-page 18 Displaying Time and Date (c) 2011 Microchip Technology Inc. PIC18F87J72 Evaluation Board Features As shown in Figure 3-3, the S2 key is used for changing the internal PGA gain of the first channel. The gains can be changed from 1 to 32 with each press of the key. When pressing the S2 key repeatedly, the gain configurations of the Sigma Delta ADC will sequentially change from 1, 2, 4, 8, 16, 32 and then back to 1. Display showing channel gain Press S2 to configure voltage gain FIGURE 3-3: Configuring Internal PGA Gain for voltage channel. (c) 2011 Microchip Technology Inc. DS51990A-page 19 PIC18F87J72 Evaluation Board User's Guide Figure 3-4 shows the function of the S3 key, which is used to change the internal gain of the second input channel. The gains can be changed from 1 to 32 with each press of the key. When pressing the S3 key repeatedly, the gain configurations of the Sigma Delta ADC will sequentially change from 1, 2, 4, 8, 16, 32 and then back to 1. Display showing channel gain Press S3 to configure current gain FIGURE 3-4: DS51990A-page 20 Configuring Internal PGA Gain for Current Channel. (c) 2011 Microchip Technology Inc. PIC18F87J72 Evaluation Board Features Figure 3-5 shows the function of the S4 key, which is used to change the bit width of the ADC conversion. Two configurations of the ADC bits are possible, either 16-bit or 24-bit. When the S4 key is pressed repeatedly, the bits toggle between 16 and 24-bit width. Display showing ADC bit width Press S4 to configure current gain FIGURE 3-5: Configuring the Number of Bits. (c) 2011 Microchip Technology Inc. DS51990A-page 21 PIC18F87J72 Evaluation Board User's Guide NOTES: DS51990A-page 22 (c) 2011 Microchip Technology Inc. PIC18F87J72 EVALUATION BOARD USER'S GUIDE Chapter 4. PIC18F87J72 Evaluation Board Firmware Flowchart 4.1 INTRODUCTION This chapter provides the flowcharts describing the functions and routines implemented in the PIC18F87J72 Evaluation Board firmware. Figures 4-1 - 4-6 show the flow of the following routines: * * * * * * * * * * Main routine (see Figure 4-1) Touch Key press routines (see Figure 4-2) Time display routines (see Figure 4-2) OSR switching routines (see Figure 4-2) Channel CH0 Gain switching routines (see Figure 4-3) Channel CH1 Gain switching routines (see Figure 4-4) Bit width changing routines (see Figure 4-5) UART Transmit Interrupt routine (see Figure 4-6) UART Receive Interrupt routine (see Figure 4-6) INT0 Interrupt routine (see Figure 4-6) (c) 2011 Microchip Technology Inc. DS51990A-page 23 PIC18F87J72 Evaluation Board User's Guide START Initialize Peripherals SPI, UART Configure ADC, RTCC, CTMU Idle Charge CTMU Pads of 4 Switches SUM and Average Voltage Measure Capacitor Voltage 16 Discharge CTMU Pads of 4 Switches Calibrate for Pad Sensitivity (if required) Check for change in Capacitance SW1 Press? NO YES SW2 Press? NO SW3 Press? YES YES NO SW4 Press? YES 1 2 3 4 OSR or Read Time Switch CH0 Gain Switch CH1 Gain Switch Bits Switch High Priority Interrupt Service Routine YES Interrupt Request? NO Idle NO 5 FIGURE 4-1: DS51990A-page 24 Main Routine (c) 2011 Microchip Technology Inc. PIC18F87J72 Evaluation Board Firmware Flowchart 1 osr_value = 0 NO osr_value = 1 YES YES NO osr_value = 2 YES NO osr_value = 3 YES NO osr_value = 4 YES Disable Global Interrupts Disable Global Interrupts Disable Global Interrupts Disable Global Interrupts Disable Global Interrupts Set OSR 256, Write Set OSR 128, Write Set OSR 64, Write Set OSR 32, Write Read RTCC Display OSR = 256 on LCD Display OSR = 128 on LCD Display OSR = 64 on LCD Display OSR = 32 on LCD Display TIME HR:MIN:SEC Enable Global Interrupts Enable Global Interrupts Enable Global Interrupts Enable Global Interrupts Enable Global Interrupts Idle FIGURE 4-2: Key Press Routine to Configure OSR and Display Time. (c) 2011 Microchip Technology Inc. DS51990A-page 25 PIC18F87J72 Evaluation Board User's Guide 2 gain1_value =0 YES NO gain1_value =1 YES NO gain1_value =2 NO YES gain1_value =3 NO gain1_value =4 YES YES NO gain1_value =5 YES Disable Global Interrupts Disable Global Interrupts Disable Global Interrupts Disable Global Interrupts Disable Global Interrupts Disable Global Interrupts CH0 Gain=1, Write CH0 Gain=2, Write CH0 Gain=4, Write CH0 Gain=8, Write CH0 Gain=16, Write CH0 Gain=32, Write Display GAIN = 1 on LCD Display GAIN = 2 on LCD Display GAIN = 4 on LCD Display GAIN = 8 on LCD Display GAIN = 16 on LCD Display GAIN = 32 on LCD Enable Global Interrupts Enable Global Interrupts Enable Global Interrupts Enable Global Interrupts Enable Global Interrupts Enable Global Interrupts Idle FIGURE 4-3: DS51990A-page 26 Key Press Routine to Configure Gain of Channel CH0. (c) 2011 Microchip Technology Inc. PIC18F87J72 Evaluation Board Firmware Flowchart 3 gain2_value =0 YES NO gain2_value =1 YES NO gain2_value =2 NO YES gain2_value =3 NO gain2_value =4 YES YES NO gain2_value =5 YES Disable Global Interrupts Disable Global Interrupts Disable Global Interrupts Disable Global Interrupts Disable Global Interrupts Disable Global Interrupts CH1 Gain=1, Write CH1 Gain=2, Write CH1 Gain=4, Write CH1 Gain=8, Write CH1 Gain=16, Write CH1 Gain=32, Write Display GAIN = 1 on LCD Display GAIN = 2 on LCD Display GAIN = 4 on LCD Display GAIN = 8 on LCD Display GAIN = 16 on LCD Display GAIN = 32 on LCD Enable Global Interrupts Enable Global Interrupts Enable Global Interrupts Enable Global Interrupts Enable Global Interrupts Enable Global Interrupts Idle FIGURE 4-4: Key Press Routine to Configure Gain of Channel CH1. (c) 2011 Microchip Technology Inc. DS51990A-page 27 PIC18F87J72 Evaluation Board User's Guide 4 bit_width = 0 NO YES bit_width = 1 YES Disable Global Interrupts Disable Global Interrupts Set Bits 16, Write Set bits 24, Write Display BITS = 16 on LCD Display BITS = 24 on LCD Enable Global Interrupts Enable Global Interrupts Idle FIGURE 4-5: DS51990A-page 28 Key Press Routine to Configure Bit Width of Channel CH0 and CH1. (c) 2011 Microchip Technology Inc. PIC18F87J72 Evaluation Board Firmware Flowchart 5 UART TX Interrupt Flag = 1? UART RX Interrupt Flag = 1? INT0 Interrupt Flag = 1? Transmit Data from TXREG1 Receive Data from RCREG1 Measure CH0, CH1 Signals through SPI Disable UART TX Interrupt Process and Write Data to TXREG1 Store Data in RAM for DMCI or UART Enable INT0 Interrupt Disable UART RX Interrupt Disable INT0 Interrupt Enable UART TX Interrupt Enable UART RX Interrupt Return From Interrupt Return From Interrupt Return From Interrupt FIGURE 4-6: Interrupt Service Routine for UART and INT0 Interrupts. (c) 2011 Microchip Technology Inc. DS51990A-page 29 PIC18F87J72 Evaluation Board User's Guide NOTES: DS51990A-page 30 (c) 2011 Microchip Technology Inc. PIC18F87J72 EVALUATION BOARD USER'S GUIDE Chapter 5. PIC18F87J72 Evaluation Board Lab Test Results 5.1 INTRODUCTION This chapter provides the various laboratory test results obtained when using the PIC18F87J72 Evaluation Board. This chapter also describes the use of the Data Monitor and Control Interface (DMCI) window to plot the waveforms present on Channel CH0 and CH1 of the evaluation board. Displaying waveforms on the DMCI window can only be done when the user is working in Debugging mode. In Debugging mode, the MPLAB IDE needs to be uploaded and the debugger connected to the RJ11 connector of the PIC18F87J72 Evaluation Board. Figure 5-1 shows two graphs (i.e., Graph 1 and Graph 2). Graph 1 shows the waveform created on Channel CH0 of the PIC18F87J72 Evaluation Board. Graph 2 shows the waveform created on Channel CH1 of the PIC18F87J72 Evaluation Board. CH0 and CH1 are both connected to the same signal of 300 mV. The internal PGA gain is chosen to be 8 for CH0 and 1 for Channel CH1. FIGURE 5-1: DMCI Waveforms for 300mV Waveform with CH0 Gain = 8, CH1 Gain = 1. (c) 2011 Microchip Technology Inc. DS51990A-page 31 PIC18F87J72 Evaluation Board User's Guide Figure 5-2 shows Graph 1 for CH0 and Graph 2 for CH1. The OSR for both CH0 and CH1 are chosen to be 32 and the signal amplitude applied at the input is a very low voltage sine wave signal of about 20 mV peak. The user can clearly observe the distortion of the waveform with such a low OSR value. FIGURE 5-2: DS51990A-page 32 DMCI Waveforms for 20mV Waveform with OSR = 32 on CH0 and CH1. (c) 2011 Microchip Technology Inc. PIC18F87J72 Evaluation Board Lab Test Results Figure 5-3 shows Graph 1 for CH0 and Graph 2 for CH1. The OSR for both CH0 and CH1 are chosen to be 256 and the same signal is applied at the input with a very low voltage sine wave signal of about 20 mV peak. Here, the sine wave shape is still retained and the signal distortion is less when compared to Figure 5-2. FIGURE 5-3: DMCI Waveforms for 20mV Waveform with OSR = 256 on CH0 and CH1. (c) 2011 Microchip Technology Inc. DS51990A-page 33 PIC18F87J72 Evaluation Board User's Guide Figure 5-4 shows Graph 1 for CH0 and Graph 2 for CH1. CH0 and CH1 are both connected to the same signal of 300 mV. The internal PGA gain is chosen to be 1 for CH0 and 32 for Channel CH1. The waveform on Graph 1 is intact, while the waveform on Graph 2 is saturated at a value of 32768. This demonstrates the effect of saturation when larger gains are used. This would distort the wave to a flat top waveform, and the information related to the shape of the signal would be lost. FIGURE 5-4: DS51990A-page 34 DMCI Waveforms for 300mV Waveform with CH0 Gain = 1, CH1 Gain = 32. (c) 2011 Microchip Technology Inc. PIC18F87J72 EVALUATION BOARD USER'S GUIDE Chapter 6. PIC18F87J72 Evaluation Board GUI 6.1 INTRODUCTION This chapter describes the Graphical User Interface used for the PIC18F87J72 Evaluation Board. Figure 6-1 indicates the various waveforms and the parameters that can be displayed on the GUI. The signals can be viewed in their real-time state in Time domain as well as in Frequency domain. UART is used for communication between the GUI and the microcontroller. The baud rate used for communication is 38400. To use the GUI, the following run-time engines must be installed: * Visa441runtime * LVRTE86std Length FIGURE 6-1: PIC18F87J72 Evaluation Board Graphical User Interface. (c) 2011 Microchip Technology Inc. DS51990A-page 35 PIC18F87J72 Evaluation Board User's Guide NOTES: DS51990A-page 36 (c) 2011 Microchip Technology Inc. PIC18F87J72 EVALUATION BOARD USER'S GUIDE Appendix A. Schematics and Layouts A.1 INTRODUCTION This appendix contains the following schematics and layouts of the PIC18F87J72 Evaluation Board: * * * * * * * * * * * Board - Schematic 1 Board - Schematic 2 Board - Schematic 3 Board - Schematic 4 Board - PCB Front Page Board - PCB Top Silk Board - PCB Top Layer Board - PCB Bottom Layer Board - PCB Bottom Silk Board - PCB L1 Ground Board - PCB L2 VDD (c) 2011 Microchip Technology Inc. DS51990A-page 37 PIC18F87J72 Evaluation Board User's Guide BOARD - SCHEMATIC 1 A.2 DS51990A-page 38 (c) 2011 Microchip Technology Inc. Schematics and Layouts BOARD - SCHEMATIC 2 RG1* is Unused Pin A.3 (c) 2011 Microchip Technology Inc. DS51990A-page 39 PIC18F87J72 Evaluation Board User's Guide BOARD - SCHEMATIC 3 A.4 DS51990A-page 40 (c) 2011 Microchip Technology Inc. Schematics and Layouts BOARD - SCHEMATIC 4 A.5 (c) 2011 Microchip Technology Inc. DS51990A-page 41 PIC18F87J72 Evaluation Board User's Guide A.6 BOARD - PCB FRONT PAGE PICTail DS51990A-page 42 TM (c) 2011 Microchip Technology Inc. Schematics and Layouts A.7 BOARD - PCB TOP SILK TM PICTail (c) 2011 Microchip Technology Inc. DS51990A-page 43 PIC18F87J72 Evaluation Board User's Guide A.8 BOARD - PCB TOP LAYER DS51990A-page 44 (c) 2011 Microchip Technology Inc. Schematics and Layouts A.9 BOARD - PCB BOTTOM LAYER (c) 2011 Microchip Technology Inc. DS51990A-page 45 PIC18F87J72 Evaluation Board User's Guide A.10 BOARD - PCB BOTTOM SILK DS51990A-page 46 (c) 2011 Microchip Technology Inc. Schematics and Layouts A.11 BOARD - PCB L1 GROUND (c) 2011 Microchip Technology Inc. DS51990A-page 47 PIC18F87J72 Evaluation Board User's Guide A.12 BOARD - PCB L2 VDD DS51990A-page 48 (c) 2011 Microchip Technology Inc. PIC18F87J72 EVALUATION BOARD USER'S GUIDE Appendix B. Bill of Materials (BOM) This chapter provides the Bill of Materials for all the components and devices used on the PIC18F87J72 Evaluation Board. TABLE B-1: Qty BILL OF MATERIALS (BOM) Reference Description Manufacturer Part Number 1 BAT1 BATTERY IND ALKALINE 9 VOLT Energizer EN22 1 BAT1 CONN PC VERT 9V SNAP-ON Keystone 96B 4 C1, C3, C5, CAP 47UF 16V ELECT FP SMD C7 Panasonic(R) 16 C2, C4, C6, CAP CER .1UF 25V Y5V 0603 C8, C14, C15, C16, C17, C18, C19, C20, C21, C27, C28, C32, C33 Murata Electronics(R) GRM188F51E104ZAA01D 5 C9, C10, C11, C12, C26 CAP CER 47000PF 50V X7R 10% 0603 TDK Corporation C1608X7R1H473K 2 C13, C31 CAP 10UF 16V ELECT FP SMD Panasonic ECG EEE-FP1C100AR 4 C22, C23, C29, C30 CAP CER 18PF 50V C0G 5% 0603 TDK Corporation C1608C0G1H180J 2 C24, C25 CAP CER 12PF 50V C0G 5% 0603 TDK Corporation C1608C0G1H120J 5 C34, C35, C36, C37, C38 CAP CER 10000PF 50V 10% X7R 0805 Murata Electronics GRM216R71H103KA01D 4 D1, D3, D16, D17 DIODE SCHOTTKY 20V 500MA SOD123 Micro Commercial Components MBR0520-TP 2 D2, D4 LED GREEN CLEAR 0805 SMD Lite-On Semi. LTST-C170GKT 2 D5, D6 LED YELLOW CLEAR 0805 SMD Lite-On Semi. LTST-C170YKT 9 D7, D8, D9, DIODE SWITCH 215MA 70V SOT-23 D10, D11, D12, D13, D14, D15 Comchip Tech. BAV99-G ECG EEE-FPC470UAR 1 D18 DIODE 75V 150MA SOD323F Fairchild Semi. 1N4148WS 1 J1 CONN POWERKJACK MINI R/A T/H Switchcraft RAPC722X 1 J2 CONN 6-6 MOD JACK Stewart Connector SS-7066-NF 1 J3 CONN USB RCPT MINI B 5PS R/A SMD JAE Electronics DX2R005HN2E700 2 J4, J5 TERMINAL BLOCK 5MM 3POS PCB On-Shore Tech. ED3101/3-WD 1 J6 TERMINAL BLOCK 5MM 2POS PCB On-Shore Tech. ED3101/2-WD 1 J7 CONN RECEPT 28POS .100 VERT DUAL TE Connectivity 1-234998-4 1 J8 CONN RECEPT 12POS .100 VERT DUAL 3M 960230-6202-AR 1 J9 CONN HEADER 6POS .100" STR TIN Molex 90120-0126 (c) 2011 Microchip Technology Inc. DS51990A-page 49 Bill of Materials (BOM) TABLE B-1: Qty BILL OF MATERIALS (BOM) (CONTINUED) Reference Description Manufacturer Part Number 2 JP1, JP8 CONN HEADER 3POS .100" STR TIN Molex 90120-0123 6 JP2, JP3, JP4, JP5, JP6, JP7 CONN HEADER 2POS .100 VERT TIN Molex/Waldom Electronics Corp. 22-03-2021 2 L1, L2 FERRITE CHIP 120 OHM 2000MA 0603 Murata Electronics BLM18PG121SN1D 1 LCD1 Energy Meter LCD Display Deepkashi Display Devices DP-093 1 PCB RoHS Compliant Bare PCB, PIC18F87J72 Evaluation Board 1 Q1 IC REG LDO 800MA 5.0V SOT-223 National Semi. LM1117MPX-5.0/NOPB IC REG LDO 800MA 3.3V SOT-223 National Semi. LM1117MPX-3.3/NOPB Stackpole Elec. RMCF 1/16 1K 5% R 104-00333 1 Q2 11 R1, R2, R5, RES 1K OHM 1/10W 5% 0603 SMD R11, R12, R15, R16, R17, R18, R19, R21 1 R3 Stackpole Elec. RMCF 1/16 0 R 7 R4, R7, R8, RES 100 OHM 1/10W 5% 0603 SMD R47, R48, R49, R50 Stackpole Elec. RMCF 1/16 100 5% R 1 R6 Stackpole Elec. RMCF 1/16 10K 5% R 1 R9 RES 1.0 OHM 1/4W 5% 1206 SMD ROHM Semi. MCR18EZPJ1R0 2 R13, R14 RES 47.0 OHM 1/4W 1% 1206 SMD ROHM Semi. MCR18EZPF47R0 2 R20, R22 RES 470 OHM 1/10W 5% 0603 SMD Stackpole Elec. RMCF 1/16 470 5% R 4 R23, R24, R30, R31 RES 330K OHM 1/2W 5% 2010 SMD ROHM Semi. MCR50JZHJ334 2 R25, R32 RES 120K OHM 1/2W 5% 2010 SMD ROHM Semi. MCR50JZHJ124 4 R26, R27, R28, R29 RES 47 OHM 1/8W .1% 0805 SMD Panasonic ECG ERA-6AEB470V 10 R33, R34, R35, R36, R37, R38, R39, R40, R41, R42 RES 1.0K OHM 1/8W .1% 0805 SMD SUSUMU Co. RG2012P-102-B-T 4 R43, R44, R45, R46 RESISTOR 1.0 OHM 1/10W 5% 0603 Panasonic ECG ERJ-3GEYJ1R0V 1 U1 80-Pin, High-Performance Microcontrollers with Dual-Channel AFE, LCD Driver and nanoWatt Technology TQFP-80 Microchip Tech. Inc. PIC18F87J72-I/PT 1 U2 512K I2C Serial EEPROM SOIC-8 Microchip Tech. Inc. 24LC512-I/SM 2 U3, U6 OPTOCOUPLER LOGIC OUT VDE 6-SMD Fairchild Semi. H11L1SR2VM 1 U4 USB 2.0 to UART protocol Converter with GPIO Microchip SSOP-20 Technology Inc. MCP2200-I/SO 1 U5 IC ESD PROTECTION LO CAP SOT23-6 USBLC6-2SC6 1 X1 CRYSTAL 10.000MHZ 18PF SMD ECS Ltd. ECS-100-18-5PX-TR 1 X2 CRYSTAL 32.768 KHZ 12.5PF CYL ECS Ltd. ECS-327-12.5-13X 1 X3 CRYSTAL 12.000MHZ 18PF SMD ECS Ltd. ECS-120-18-5PX-TR RES 0.0 OHM 1/10W 0603 SMD RES 10K OHM 1/10W 5% 0603 SMD (c) 2011 Microchip Technology Inc. STMicroelectronics DS51990A-page 50 NOTES: (c) 2011 Microchip Technology Inc. DS51990A-page 51 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://www.microchip.com/ support Web Address: www.microchip.com Asia Pacific Office Suites 3707-14, 37th Floor Tower 6, The Gateway Harbour City, Kowloon Hong Kong Tel: 852-2401-1200 Fax: 852-2401-3431 India - Bangalore Tel: 91-80-3090-4444 Fax: 91-80-3090-4123 India - New Delhi Tel: 91-11-4160-8631 Fax: 91-11-4160-8632 Austria - Wels Tel: 43-7242-2244-39 Fax: 43-7242-2244-393 Denmark - Copenhagen Tel: 45-4450-2828 Fax: 45-4485-2829 India - Pune Tel: 91-20-2566-1512 Fax: 91-20-2566-1513 France - Paris Tel: 33-1-69-53-63-20 Fax: 33-1-69-30-90-79 Japan - Yokohama Tel: 81-45-471- 6166 Fax: 81-45-471-6122 Germany - Munich Tel: 49-89-627-144-0 Fax: 49-89-627-144-44 Atlanta Duluth, GA Tel: 678-957-9614 Fax: 678-957-1455 Boston Westborough, MA Tel: 774-760-0087 Fax: 774-760-0088 Chicago Itasca, IL Tel: 630-285-0071 Fax: 630-285-0075 Cleveland Independence, OH Tel: 216-447-0464 Fax: 216-447-0643 Dallas Addison, TX Tel: 972-818-7423 Fax: 972-818-2924 Detroit Farmington Hills, MI Tel: 248-538-2250 Fax: 248-538-2260 Indianapolis Noblesville, IN Tel: 317-773-8323 Fax: 317-773-5453 Los Angeles Mission Viejo, CA Tel: 949-462-9523 Fax: 949-462-9608 Santa Clara Santa Clara, CA Tel: 408-961-6444 Fax: 408-961-6445 Toronto Mississauga, Ontario, Canada Tel: 905-673-0699 Fax: 905-673-6509 Australia - Sydney Tel: 61-2-9868-6733 Fax: 61-2-9868-6755 China - Beijing Tel: 86-10-8569-7000 Fax: 86-10-8528-2104 China - Chengdu Tel: 86-28-8665-5511 Fax: 86-28-8665-7889 China - Chongqing Tel: 86-23-8980-9588 Fax: 86-23-8980-9500 Korea - Seoul Tel: 82-2-554-7200 Fax: 82-2-558-5932 or 82-2-558-5934 China - Hangzhou Tel: 86-571-2819-3180 Fax: 86-571-2819-3189 Malaysia - Kuala Lumpur Tel: 60-3-6201-9857 Fax: 60-3-6201-9859 China - Hong Kong SAR Tel: 852-2401-1200 Fax: 852-2401-3431 Malaysia - Penang Tel: 60-4-227-8870 Fax: 60-4-227-4068 China - Nanjing Tel: 86-25-8473-2460 Fax: 86-25-8473-2470 Philippines - Manila Tel: 63-2-634-9065 Fax: 63-2-634-9069 China - Qingdao Tel: 86-532-8502-7355 Fax: 86-532-8502-7205 Singapore Tel: 65-6334-8870 Fax: 65-6334-8850 China - Shanghai Tel: 86-21-5407-5533 Fax: 86-21-5407-5066 Taiwan - Hsin Chu Tel: 886-3-6578-300 Fax: 886-3-6578-370 China - Shenyang Tel: 86-24-2334-2829 Fax: 86-24-2334-2393 Taiwan - Kaohsiung Tel: 886-7-213-7830 Fax: 886-7-330-9305 China - Shenzhen Tel: 86-755-8203-2660 Fax: 86-755-8203-1760 Taiwan - Taipei Tel: 886-2-2500-6610 Fax: 886-2-2508-0102 China - Wuhan Tel: 86-27-5980-5300 Fax: 86-27-5980-5118 Thailand - Bangkok Tel: 66-2-694-1351 Fax: 66-2-694-1350 Italy - Milan Tel: 39-0331-742611 Fax: 39-0331-466781 Netherlands - Drunen Tel: 31-416-690399 Fax: 31-416-690340 Spain - Madrid Tel: 34-91-708-08-90 Fax: 34-91-708-08-91 UK - Wokingham Tel: 44-118-921-5869 Fax: 44-118-921-5820 China - Xian Tel: 86-29-8833-7252 Fax: 86-29-8833-7256 China - Xiamen Tel: 86-592-2388138 Fax: 86-592-2388130 China - Zhuhai Tel: 86-756-3210040 Fax: 86-756-3210049 DS51990A-page 52 Korea - Daegu Tel: 82-53-744-4301 Fax: 82-53-744-4302 05/02/11 (c) 2011 Microchip Technology Inc. Mouser Electronics Authorized Distributor Click to View Pricing, Inventory, Delivery & Lifecycle Information: Microchip: ADM00333