MTCH101 Single-Channel Proximity Detector Features: Package Type • Capacitive Proximity Detection System: - High Signal to Noise Ratio (SNR) - Adjustable sensitivity - Noise rejection filters - Automatic Environmental Compensation - Wide range of sensor shape and size support - Stuck Release Mechanism • No External Components • Low-Power mode • Response Time Down to 75 ms • Wide Operative Voltage: - 2.0V to 5.5V • Operating Temperature: - -40°C to +85°C The device is available in 6-lead SOT-23 packaging (see Figure 1). FIGURE 1: 6-PIN DIAGRAM MTI 1 Vss 2 MTSA 3 MTCH101 6-Pin SOT-23 6 MTPM 5 VDD 4 MTO Applications: • • • • • • Light Switch Portable Device Enabler White Goods and Appliances Office Equipment and Toys Display and Keypad Backlighting Activation SAR Compliant Application 2012 Microchip Technology Inc. TABLE 1: I/O 6-PIN SOT-23 PINOUT DESCRIPTION 6-Pin SOT-23 Description MTI 1 Proximity Sensor Input VSS 2 Ground MTSA 3 Sensitivity Adjust Input MTO 4 Detect Output (Active-Low) VDD 5 Power Supply Input MTPM 6 Low-Power mode Select (Active-Low) Preliminary DS41664A-page 1 MTCH101 Table of Contents 1.0 Device Overview ........................................................................................................................................................................ 3 2.0 Typical Circuit ............................................................................................................................................................................ 4 3.0 Sensitivity Adjustment............................................................................................................................................................... 5 4.0 Power Mode............................................................................................................................................................................... 6 5.0 Reset.......................................................................................................................................................................................... 7 6.0 Interface with the Host ............................................................................................................................................................... 8 7.0 Detection Distance..................................................................................................................................................................... 9 8.0 Electrical Characteristics.......................................................................................................................................................... 10 9.0 Packaging Information ............................................................................................................................................................. 12 Index ........................................................................................................... ........................................................................................ 16 The Microchip Web Site ....................................................................................................................................................................... 17 Customer Change Notification Service ................................................................................................................................................ 17 Customer Support ................................................................................................................................................................................ 17 Reader Response ................................................................................................................................................................................ 18 Product Identification System .............................................................................................................................................................. 19 TO OUR VALUED CUSTOMERS It is our intention to provide our valued customers with the best documentation possible to ensure successful use of your Microchip products. To this end, we will continue to improve our publications to better suit your needs. Our publications will be refined and enhanced as new volumes and updates are introduced. If you have any questions or comments regarding this publication, please contact the Marketing Communications Department via E-mail at [email protected] or fax the Reader Response Form in the back of this data sheet to (480) 792-4150. We welcome your feedback. Most Current Data Sheet To obtain the most up-to-date version of this data sheet, please register at our Worldwide Web site at: http://www.microchip.com You can determine the version of a data sheet by examining its literature number found on the bottom outside corner of any page. The last character of the literature number is the version number, (e.g., DS30000A is version A of document DS30000). Errata An errata sheet, describing minor operational differences from the data sheet and recommended workarounds, may exist for current devices. As device/documentation issues become known to us, we will publish an errata sheet. The errata will specify the revision of silicon and revision of document to which it applies. To determine if an errata sheet exists for a particular device, please check with one of the following: • Microchip’s Worldwide Web site; http://www.microchip.com • Your local Microchip sales office (see last page) When contacting a sales office, please specify which device, revision of silicon and data sheet (include literature number) you are using. Customer Notification System Register on our web site at www.microchip.com to receive the most current information on all of our products. DS41664A-page 2 Preliminary 2012 Microchip Technology Inc. MTCH101 1.0 DEVICE OVERVIEW The MTCH101 provides an easy way to add proximity or touch detection to any human interface application. The device integrates a single-channel capacitive proximity detection, which can work through plastic, glass or wood-front panel. It also supports a wide range of conductive materials as sensor, like copper pad on PCB, silver or carbon printing on plastic, Indium Tin Oxide (ITO) pad, wire/cable, etc. On-board adjustable sensitivity and Power mode selection allow the user to configure the device at run time easily. An active-low output will communicate the state of the sensor to a host/master MCU, or drive an indication LED (see Figure 1-1). FIGURE 1-1: BLOCK DIAGRAM Proximity Scan Driver Proximity Sensor ADC MTCH101 2012 Microchip Technology Inc. Power Mode Control Proximity Decoding Data Filtering State Output Host/ Discrete Components Sensitivity Adjust Preliminary DS41664A-page 3 MTCH101 2.0 TYPICAL CIRCUIT The MTCH101 can work either as a stand-alone device to control a LED (see Figure 2-1) to indicate touch/ proximity, or work with host MCU (see Figure 2-2). FIGURE 2-1: TYPICAL CIRCUIT AS STAND-ALONE Proximity Sensor VDD MTCH101 R3 1 R5 MTPM MTI 4.7k VDD VDD 2 VDD VSS R4 3 MTSA MTO VDD 5 C1 0.1 µF R1 R6 6 1k 10k R2 FIGURE 2-2: 10k 4 TYPICAL CIRCUIT WITH HOST MCU Proximity Sensor Host MTCH101 R1 1 MTI MTPM 4 10k 4.7k 2 Digital output VDD 5 VSS R2 3 R3 MTSA VDD MTO C1 0.1 µF 6 VDD R4 4.7k Digital input 10k DAC output DS41664A-page 4 Preliminary 2012 Microchip Technology Inc. MTCH101 3.0 SENSITIVITY ADJUSTMENT FIGURE 3-3: The sensitivity of the system determines how far and fast it can respond to proximity or touch. The MTCH101 provides the MTSA pin to adjust the sensitivity, and the voltage on this pin will determine the sensitivity. VDD voltage will give the lowest sensitivity, while GND voltage will give the highest sensitivity. The device will sample the voltage on the MTSA pin after each scan, so it does not only support setting a fixed sensitivity by a resistor ladder, but it also allows adjusting the sensitivity dynamically, while the device is running. A Digital-to-Analog Converter (DAC) controlled by the host, or a hardware potentiometer can be used to adjust the sensitivity. See typical circuit in Figure 3-1 to Figure 3-4. FIGURE 3-1: SENSITIVITY CONTROLLED BY HOST USING DAC Host R2 DAC MTSA 1 0k FIGURE 3-4: FIXED SENSITIVITY USING RESISTOR LADDER SENSITIVITY CONTROLLED BY HOST USING PWM VDD Host R1 R R3 PWM MTSA 10k R2 MTSA C Note: Both R1 and R2 are recommended to be greater than 100K for lower power consumption. FIGURE 3-2: HARDWARE SENSITIVITY ADJUST USING POTENTIOMETER Note 1: Application Note AN538, “Using PWM to Generate Analog Output” has details about how to choose appropriate R and C values. VDD R2 R1 MTSA 10k 2012 Microchip Technology Inc. Preliminary DS41664A-page 5 MTCH101 4.0 POWER MODE The MTCH101 has two Power mode options: Normal mode and Low-Power mode. The state of the MTPM pin determines the Power mode. 4.1 Normal Mode Option The device will run in Normal mode if the MTPM pin is set high and no proximity or touch is detected. In this mode, after an active scan, sleep time is between 69 and 105 ms, as shown in Figure 4-1. The sleep time depends on the VDD voltage, the lower the voltage, the more time it will be in the Idle state. FIGURE 4-1: NORMAL MODE Active Sleep: 69~105 ms Scan MTI 4.2 Low-Power Mode Option The device will run in Low-Power mode if the MTPM pin is set low and no proximity or touch is detected. In this mode, after an active scan, sleep time is between 572 and 845 ms, as shown in Figure 4-2. As in Normal mode, the sleep time depends on the VDD voltage, the lower the voltage, the more time it will be in the Idle state. FIGURE 4-2: Active Scan LOW-POWER MODE Sleep: 572~845 ms MTI Note: If the device makes a proximity or touch detection, it will automatically perform active scans continually. Once the device releases from its proximity-detected state, it will return to the Power mode set by the MTPM pin. DS41664A-page 6 Preliminary 2012 Microchip Technology Inc. MTCH101 5.0 RESET 5.2 The MTCH101 can be stuck in a proximity-detected state in some cases, such as sudden temperature change, or higher dielectric materials (metal, wood or glass) present near the sensor. Two methods can be used to release the proximity-detected state without repowering the device. Reset by Touch and Release A stuck release mechanism is implemented for this device. When the device is stuck in a proximity-detected state, the user can touch the sensor pad and then release. This action will release the proximity-detected state (see Figure 5-2). FIGURE 5-2: 5.1 Reset by the MTPM pin Changing the state of the MTPM pin, either from low-to-high or from high-to-low, will reset the proximity detection system and release the detection state. If the device needs to keep the same Power mode, then a pulse, which holds at least 4.5 ms, can be used to reset the device (see Figure 5-1). This reset method can be used at anytime during the operation, not only when the state is stuck in a proximity-detected state. FIGURE 5-1: RESET BY TOUCH AND RELEASE Finger touches the sensor pad RESET PULSE DURATION REQUIREMENT >4.5 ms Finger releases MTPM Low-Power mode >4.5 ms Normal mode MTPM Note: In non-detected state, because the device goes to Sleep for a certain time, the Reset pulse duration should be 4.5 ms plus the Sleep time. 2012 Microchip Technology Inc. Preliminary DS41664A-page 7 MTCH101 6.0 INTERFACE WITH THE HOST The MTO pin can be considered as an open drain output. A pull-up resistor (usually 3.3k~10 k) is needed to interface with a host. The pull-up voltage can be any voltage lower than VDD. This allows a simple interface with a lower VDD host device (see Figure 6-1). FIGURE 6-1: INTERFACE WITH THE HOST 10k MTO DS41664A-page 8 R Host Digital Input Preliminay 2012 Microchip Technology Inc. MTCH101 7.0 DETECTION DISTANCE FIGURE 7-1: DISTANCE vs. SENSOR AREA 7 Distance (inch) 6 5 4 3 2 1 0 1 1.5 2 2.5 3 Round Pad Diameter (inch) Note: The tested sensors are round solid pads on FR4 PCB. No ground plane was near the sensor, as this would give the maximum detection distance. 2012 Microchip Technology Inc. Preliminary DS41664A-page 9 MTCH101 8.0 ELECTRICAL CHARACTERISTICS Absolute Maximum Ratings(†) Ambient temperature under bias ..........................................................................................................-40°C to +125°C Storage temperature ............................................................................................................................-65°C to +150°C Voltage on VDD with respect to VSS ...............................................................................................................0 to +6.5V Voltage on all other pins with respect to VSS................................................................................ -0.3V to (VDD + 0.3V) Total power dissipation(1) ..................................................................................................................................800 mW Max. current out of VSS pin ..................................................................................................................................80 mA Max. current into VDD pin .....................................................................................................................................80 mA Input clamp current, IIK (VI < 0 or VI > VDD) 20 mA Output clamp current, IOK (VO < 0 or VO > VDD) 20 mA Max. output current sunk by any I/O pin...............................................................................................................25 mA Max. output current sourced by any I/O pin .........................................................................................................25 mA Note 1: Power dissipation is calculated as follows: PDIS = VDD x {IDD – IOH} + {(VDD – VOH) x IOH} + (VOL x IOL) †NOTICE: Stresses above those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. This is a stress rating only and functional operation of the device at those or any other conditions above those indicated in the operation listings of this specification is not implied. Exposure to maximum rating conditions for extended periods may affect device reliability. DS41664A-page 10 Preliminary 2012 Microchip Technology Inc. MTCH101 The tables provided following this note are a statistical summary based on a limited number of samples and are provided for informational purposes only. The performance characteristics listed herein are not tested or guaranteed. In some tables, the data presented may be outside the specified operating range (e.g., outside specified power supply range) and therefore, outside the warranted range. Note: 8.1 DC Characteristics: MTCH101 (Industrial) Standard Operating Conditions (unless otherwise specified) Operating Temperature -40C TA +85C (industrial) DC CHARACTERISTICS Param Sym. No. Characteristic Min. Typ† Max. Units D001 VDD Supply Voltage 2.0 — 5.5 V D002 VPOR VDD Start Voltage to ensure Power-on-Reset — Vss — V D003 SVDD VDD Rise Rate to ensure Power-on Reset 0.05* — — V/ms * Conditions These parameters are characterized but not tested. † Data in “Typ” column is at 3.0V, 25°C unless otherwise stated. These parameters are for design guidance only and are not tested. TABLE 8-1: RESPONSE TIME AND CURRENT CONSUMPTION Power Mode Typical Current (µA) Highest Sensitivity Response Time (ms) Lowest Sensitivity Response Time (ms) Typical Max. Typical Max. 120 100 150 210 260 Low-Power mode 30 790 890 900 1000 Normal mode 200 80 130 190 240 Low-Power mode 54 640 740 750 850 Normal mode 340 76 119 190 220 Low-Power mode 97 530 620 640 730 Normal mode 2012 Microchip Technology Inc. Preliminary Conditions VDD = 2.0V VDD = 3.3V VDD = 5.0V DS41664A-page 11 MTCH101 9.0 PACKAGING INFORMATION 9.1 Package Marking Information 6-Lead SOT-23 Example 20JR XXNN Legend: XX...X Y YY WW NNN e3 * Note: * Customer-specific information Year code (last digit of calendar year) Year code (last 2 digits of calendar year) Week code (week of January 1 is week ‘01’) Alphanumeric traceability code Pb-free JEDEC designator for Matte Tin (Sn) This package is Pb-free. The Pb-free JEDEC designator ( e3 ) can be found on the outer packaging for this package. In the event the full Microchip part number cannot be marked on one line, it will be carried over to the next line, thus limiting the number of available characters for customer-specific information. Standard PIC® device marking consists of Microchip part number, year code, week code, and traceability code. For PIC device marking beyond this, certain price adders apply. Please check with your Microchip Sales Office. For QTP devices, any special marking adders are included in QTP price. DS41664A-page 12 Preliminary 2012 Microchip Technology Inc. MTCH101 9.2 Package Details The following sections give the technical details of the packages. /HDG3ODVWLF6PDOO2XWOLQH7UDQVLVWRU27>627@ 1RWH )RUWKHPRVWFXUUHQWSDFNDJHGUDZLQJVSOHDVHVHHWKH0LFURFKLS3DFNDJLQJ6SHFLILFDWLRQORFDWHGDW KWWSZZZPLFURFKLSFRPSDFNDJLQJ b 4 N E E1 PIN 1 ID BY LASER MARK 1 2 3 e e1 D A A2 c φ L A1 L1 8QLWV 'LPHQVLRQ/LPLWV 1XPEHURI3LQV 0,//,0(7(56 0,1 1 120 0$; 3LWFK H %6& 2XWVLGH/HDG3LWFK H %6& 2YHUDOO+HLJKW $ ± 0ROGHG3DFNDJH7KLFNQHVV $ ± 6WDQGRII $ ± 2YHUDOO:LGWK ( ± 0ROGHG3DFNDJH:LGWK ( ± 2YHUDOO/HQJWK ' ± )RRW/HQJWK / ± )RRWSULQW / ± )RRW$QJOH ± /HDG7KLFNQHVV F ± /HDG:LGWK E ± 1RWHV 'LPHQVLRQV'DQG(GRQRWLQFOXGHPROGIODVKRUSURWUXVLRQV0ROGIODVKRUSURWUXVLRQVVKDOOQRWH[FHHGPPSHUVLGH 'LPHQVLRQLQJDQGWROHUDQFLQJSHU$60(<0 %6& %DVLF'LPHQVLRQ7KHRUHWLFDOO\H[DFWYDOXHVKRZQZLWKRXWWROHUDQFHV 0LFURFKLS 7HFKQRORJ\ 'UDZLQJ &% 2012 Microchip Technology Inc. Preliminary DS41664A-page 13 MTCH101 Note: For the most current package drawings, please see the Microchip Packaging Specification located at http://www.microchip.com/packaging DS41664A-page 14 Preliminary 2012 Microchip Technology Inc. MTCH101 APPENDIX A: DATA SHEET REVISION HISTORY Revision A (10/2012) Initial release of this data sheet. 2012 Microchip Technology Inc. Preliminary DS41664A-page 15 MTCH101 INDEX A T Absolute Maximum Ratings ................................................ 10 Applications........................................................................... 1 Typical Circuit ....................................................................... 4 Typical Circuit as Standalone ............................................... 4 Typical Circuit with Host MCU .............................................. 4 B Block Diagram....................................................................... 3 W C WWW Address ................................................................... 17 WWW, On-Line Support ....................................................... 2 Customer Change Notification Service ............................... 17 Customer Notification Service............................................. 17 Customer Support ............................................................... 17 D DC Characteristics MTCH101 (Industrial).................................................. 11 Detection Distance ................................................................ 9 Device Overview ................................................................... 3 Distance vs. Sensor Area...................................................... 9 E Electrical Characteristics..................................................... 10 Errata .................................................................................... 2 F Features ................................................................................ 1 Fixed Sensitivity using Resistor Ladder ................................ 5 H Hardware Sensitivity Adjust using Potentiometer ................. 5 I Interface with the Host .......................................................... 8 Internet Address.................................................................. 17 L Low-Power Mode .................................................................. 6 Low-Power Mode Option....................................................... 6 M Microchip Internet Web Site ................................................ 17 N Normal Mode......................................................................... 6 Normal Mode Option ............................................................. 6 P Package Type ....................................................................... 1 Packaging SOT-23 ....................................................................... 13 Packaging Information ........................................................ 12 Power Mode .......................................................................... 6 R Reader Response ............................................................... 18 Reset..................................................................................... 7 Reset by the MTPM pin......................................................... 7 Reset by Touch and Release................................................ 7 Reset Pulse Duration Requirement....................................... 7 Revision History .................................................................. 15 S Sensitivity Adjustment ........................................................... 5 Sensitivity Controlled by Host using DAC ............................. 5 Sensitivity Controlled by Host using PWM ............................ 5 DS41664A-page 16 Preliminary 2012 Microchip Technology Inc. MTCH101 THE MICROCHIP WEB SITE CUSTOMER SUPPORT Microchip provides online support via our WWW 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: Users of Microchip products can receive assistance through several channels: • 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 (FAQ), 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 • • • • • 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://microchip.com/support CUSTOMER CHANGE NOTIFICATION SERVICE Microchip’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. Under “Support”, click on “Customer Change Notification” and follow the registration instructions. 2012 Microchip Technology Inc. Preliminary DS41664A-page 17 MTCH101 READER RESPONSE It is our intention to provide you with the best documentation possible to ensure successful use of your Microchip product. If you wish to provide your comments on organization, clarity, subject matter, and ways in which our documentation can better serve you, please FAX your comments to the Technical Publications Manager at (480) 792-4150. Please list the following information, and use this outline to provide us with your comments about this document. TO: Technical Publications Manager RE: Reader Response Total Pages Sent ________ From: Name Company Address City / State / ZIP / Country Telephone: (_______) _________ - _________ FAX: (______) _________ - _________ Application (optional): Would you like a reply? Y N Device: MTCH101 Literature Number: DS41664A Questions: 1. What are the best features of this document? 2. How does this document meet your hardware and software development needs? 3. Do you find the organization of this document easy to follow? If not, why? 4. What additions to the document do you think would enhance the structure and subject? 5. What deletions from the document could be made without affecting the overall usefulness? 6. Is there any incorrect or misleading information (what and where)? 7. How would you improve this document? DS41664A-page 18 Preliminary 2012 Microchip Technology Inc. MTCH101 PRODUCT IDENTIFICATION SYSTEM To order or obtain information, e.g., on pricing or delivery, refer to the factory or the listed sales office. [X](1) PART NO. Device - X Tape and Reel Temperature Option Range /XX XXX Package Pattern Device: MTCH101 Tape and Reel Option: Blank T = Standard packaging (tube or tray) = Tape and Reel(1) Temperature Range: I = -40C to Package:(2) OT Pattern: QTP, SQTP, Code or Special Requirements (blank otherwise) = +85C Examples: a) MTCH101 - I/OT Industrial temperature SOT-23 package (Industrial) 6-pin SOT-23 Note 1: 2: 2012 Microchip Technology Inc. Preliminary Tape and Reel identifier only appears in the catalog part number description. This identifier is used for ordering purposes and is not printed on the device package. Check with your Microchip Sales Office for package availability with the Tape and Reel option. For other small form-factor package availability and marking information, please visit www.microchip.com/packaging or contact your local sales office. DS41664A-page 19 NOTES: DS41664A-page 20 Preliminary 2012 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 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, FlashFlex, KEELOQ, KEELOQ logo, MPLAB, PIC, PICmicro, PICSTART, PIC32 logo, rfPIC, SST, SST Logo, SuperFlash 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, MTP, SEEVAL and The Embedded Control Solutions Company are registered trademarks of Microchip Technology Incorporated in the U.S.A. Silicon Storage Technology is a registered trademark of Microchip Technology Inc. in other countries. Analog-for-the-Digital Age, Application Maestro, BodyCom, chipKIT, chipKIT logo, CodeGuard, dsPICDEM, dsPICDEM.net, dsPICworks, dsSPEAK, ECAN, ECONOMONITOR, FanSense, HI-TIDE, In-Circuit Serial Programming, ICSP, Mindi, MiWi, MPASM, MPF, MPLAB Certified logo, MPLIB, MPLINK, mTouch, Omniscient Code Generation, PICC, PICC-18, PICDEM, PICDEM.net, PICkit, PICtail, REAL ICE, rfLAB, Select Mode, SQI, Serial Quad I/O, Total Endurance, TSHARC, UniWinDriver, WiperLock, ZENA and Z-Scale 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. GestIC and ULPP are registered trademarks 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. © 2012, Microchip Technology Incorporated, Printed in the U.S.A., All Rights Reserved. Printed on recycled paper. ISBN: 9781620766378 QUALITY MANAGEMENT SYSTEM CERTIFIED BY DNV == ISO/TS 16949 == 2012 Microchip Technology Inc. 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. 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