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? 1999-2013 microchip technology inc. preliminary ds41115d-page 1 HCS101 features operating ? 2 programmable 32-bit serial numbers ? 10-bit serial number ? 66-bit transmission code length ? non-volatile 16-bit counter ? 3.5v -13.3v operation ? 3 inputs, 7 functions available ? selectable baud rate ? automatic code word completion ? battery low signal transmitted to receiver other ? pin-out compatible with most k ee l oq ? encoders ? simple programming interface ? on-chip eeprom ? on-chip oscillator and timing components ? button inputs have internal pull-down resistors ? minimum external components required typical applications the HCS101 is ideal for remote control applications. these applications include: ? low-end automotive alarm systems ? low-end automotive immobilizers ? gate and garage door openers ? identity tokens ? low-end burglar alarm systems ? fan and lighting controls ?toys description the HCS101 from microchip technology inc. is a fixed code encoder designed for remote control systems. it provides a small package outline and low cost to make this device a perfect solution for unidirectional remote control systems. it is also pin compatible with microchip?s hcs201 code hopping encoder allowing easy upgrading to a more secure remote keyless entry (rke) system. the 8-pin HCS101 operates over a wide voltage range of 3.5v to 13.3v and has three button inputs allowing the system designer the freedom to utilize up to 7 func- tions. the only components required for device opera- tion are the buttons and rf circuitry, allowing a very low system cost. package types HCS101 block diagram 1 2 3 4 8 7 6 5 s0 s1 s2 nc v dd nc data v ss pdip, soic HCS101 v ss v dd power latching and switching button input port transmit register eeprom data s2 s1 s0 oscillator reset circuit controller fixed code encoder
HCS101 ds41115d-page 2 preliminary ? 1999-2013 microchip technology inc. 1.0 system overview as indicated in the block diagram in figure 1-1, the HCS101 has a small eeprom array, which must be loaded with several parameters before use. these parameters include: ? two 32-bit serial numbers ? 16-bit counter value ? additional 10-bit serial number ? configuration data the eeprom data for each transmitter is programmed by the manufacturer at the time of production. any type of controller may be used as a receiver, but it is typically a microcontroller with compatible firmware that allows the receiver to operate in conjunction with a transmitter, based on the HCS101. figure 1-1: basic operatio n of transmitter encoder eeprom array serial number 1 transmitted information serial number 3 counter counter serial number 3 function bits function bits serial number 1
? 1999-2013 microchip technology inc. preliminary ds41115d-page 3 HCS101 2.0 device operation as shown in the typical application circuits in figure 2- 1, the HCS101 is easy to use. it requires only the addi- tion of buttons and rf circuitry for use as the transmit- ter in your application. a description of each pin is given in table 2-1. figure 2-1: typical circuits table 2-1: pin descriptions the HCS101 will wake-up upon detecting a switch clo- sure and then delay for a debounce delay (t db ) as shown in figure 2-2. the device will then update the 16-bit counter before it loads the transmit register. the data is then transmitted serially on the data pin in pulse width modulation (pwm) format. if additional buttons are pressed during a transmission, the current transmission is terminated. the HCS101 restarts and the new transmission will contain the latest button information. when all buttons are released, the device completes the current code word and then pow- ers down. released buttons do not terminate and/or restart transmissions. figure 2-2: enco der operation name pin number description s0 1 switch input 0 s1 2 switch input 1 s2 3 switch input 2/clock pin for programming mode nc 4 no connection v ss 5 ground reference connection data 6 pulse width modulation (pwm) output pin/data pin for programming mode nc 7 no connection v dd 8 positive supply voltage connection v dd b0 tx out s0 s1 s2 nc nc v dd data v ss 2 button remote control b1 tx out s0 s1 s2 nc v dd data v ss 4 button remote control b3 b2 b1 b0 note: up to 7 functions can be implemented by pressing more than one button simultaneously or by using a suitable diode array. nc v dd power-up reset and debounce delay sample inputs update counter load transmit register buttons added ? all buttons released ? (a button has been pressed) transmit stop no yes no yes complete code word transmission
HCS101 ds41115d-page 4 preliminary ? 1999-2013 microchip technology inc. 3.0 transmitted word 3.1 transmission format (pwm mode) the HCS101 transmission is made up of several code words as shown in figure 3-1. each code word starts with a preamble and a header, followed by the data. the code word is followed by a guard period before the next code word begins. the same code word is trans- mitted as long as the button is pressed. refer to table 7-3 for transmission timing requirements. 3.2 code word organization the HCS101 transmits a 66-bit code word. the 66-bit word is constructed from the serial numbers, counter and function information. the code word format is shown in figure 3-2. under normal conditions, serial number 1 is transmitted with the counter and serial number 3. if all the buttons are pressed, serial number 2 is transmitted in place of the counter and serial number 3. figure 3-1: code word transmission format figure 3-2: code word organization logic ?0? logic ?1? bit period preamble header counter, ser_3 and function guard time tp th tg start pulse (te) ser_1 and function t e serial number 3 (10 bits) transmission direction serial number 1 function** (0/4 bits) (32/28 bits)** * see section 4.3.6, s3 setting (s3set) ** see section 4.3.7 extended serial number (xser) *** serial number 2 is transmitted when all buttons are pressed lsb first s2 s1 s0 s3* s2 s1 s0 s3* (16 bits) counter ?00? (2 bits) function (4 bits) ?1? (1 bit) v low (1 bit) serial number 2*** (32 bits) msb lsb
? 1999-2013 microchip technology inc. preliminary ds41115d-page 5 HCS101 4.0 eeprom memory organization the HCS101 contains 192 bits (12 x 16-bit words) of eeprom memory as shown in table 4-1. further descriptions of the memory array are given in the fol- lowing sections. table 4-1: eeprom memory map 4.1 cntr (counter) this is the 16-bit gray code counter value that can be used to track the number of times a transmitter has been activated. 4.2 ser_1, ser_2, ser_3 (encoder serial number) ser_1, and ser_2 are the 32-bit device serial num- bers. ser_3 is an additional 10-bit serial number trans- mitted with every transmission. the most significant 6 bits of the 16-bit ser_3 word are reserved and should be set to zero. 4.3 configuration word the configuration word is a 16-bit word stored in the eeprom array that is used by the device to store the status configuration options. further explanations of each of the bits are described in the following sections. table 4-2: conf iguration word 4.3.1 oscillator tuning bits (osc0 to osc3) these bits are used to tune the nominal frequency of the HCS101 to within 10% of its nominal value over temperature and voltage. 4.3.2 low voltage trip point select (v lows ) the low voltage trip point select bit (v lows ) and the s3 setting bit (s3set) are used to determine the voltage level for the low voltage detector. * see also section 4.3.6 4.3.3 baudrate select bits (brs) brs selects the speed of transmission and the code word blanking. table 4-3 shows how the bit is used to select the different baud rates and section 5.2 provides a detailed explanation of code word blanking. table 4-3: baudrate select word address mnemonic description 0 reserved set to 0000h 1 reserved set to 0000h 2 reserved set to 0000h 3 reserved set to 0000h 4 cntr counter 5 reserved set to 0000h 6 ser_1 device serial number 1 (word 0) 16 lsb?s 7 ser_1 device serial number 1 (word 1) 16 msb?s 8 ser_2 device serial number 2 (word 0) 16 lsb?s 9 ser_2 device serial number 2 (word 1) 16 msb?s 10 ser_3 device serial number 3 11 config config word bit number bit name 0osc0 1osc1 2osc2 3osc3 4v lows 5brs 6mtx4 7 txen 8 s3set 9 xser 10 reserved 11 reserved 12 reserved 13 reserved 14 reserved 15 reserved v lows s3set* trip point 004.4 014.4 109 116.75 brs basic pulse element code words transmitted 0 400s all 1 200s 1 out of 2
HCS101 ds41115d-page 6 preliminary ? 1999-2013 microchip technology inc. 4.3.4 minimum four transmissions (mtx4) if this bit is cleared, at least one code word is completed when the HCS101 is activated. if this bit is set, at least four complete code words are transmitted. 4.3.5 transmit pulse enable (txen) if this bit is cleared, no start pulse occurs before a transmission. if the bit is set, a start pulse (1 t e long) is transmitted before the first code word?s preamble. 4.3.6 s3 setting (s3set) this bit determines the value of s3 in the function code during a transmission and the high trip point selected by v lows in section 4.3.2. if this bit is cleared, s3 mir- rors s2 during a transmission. if the s3set bit is set, s3 in the function code is always set, independent of the value of s2. 4.3.7 extended serial number (xser) if this bit is cleared, the most significant four bits of the 32-bit serial number 1 are replaced with the function code. if this bit is set, the full 32-bit serial number 1 is transmitted. 5.0 special features 5.1 code word completion code word completion is an automatic feature that ensures the entire code word is transmitted, even if the button is released before the transmission is complete. if the button is held down beyond the time for one code word, multiple code words will result. if another button is activated during a transmission, the active transmis- sion will be aborted and a new transmission will begin using the new button information. 5.2 blank alternate code word federal communications commission (fcc) rules, part 15 specify the limits on fundamental power and har- monics that can be transmitted. power is calculated on the worst case average power transmitted in a 100 ms window. it is therefore advantageous to minimize the duty cycle of the transmission by minimizing the duty cycle of the individual bits and by blanking out consecu- tive words. the transmission duty cycle can be lowered by setting brs. this reduces the average power trans- mitted and hence, assists in fcc approval of a transmit- ter device. shortening the code word length and transmitting only every other code word (figure 5-1) also may allow a higher amplitude transmission for greater range. 5.3 auto-shutoff the auto-shutoff function automatically stops the device from transmitting if a button inadvertently gets pressed for longer than the time-out period, t to . this will prevent the device from draining the battery if a but- ton gets pressed while the transmitter is in a pocket or purse. 5.4 v low : voltage low indicator the v low bit is included in every transmission and will be transmitted as a one if the operating voltage has dropped below the low voltage trip point. refer to figure 3-2. the trip point is selectable based on the battery voltage being used. see section 4.3.2 for a description of how the low voltage select option is set. figure 5-1: code word transmissions one code word brs = 0 brs = 1 a 2a 100ms 100ms 100ms 100ms amplitude time
? 1999-2013 microchip technology inc. preliminary ds41115d-page 7 HCS101 6.0 programming the HCS101 when using the HCS101 in a system, the user will have to program some parameters into the device, including the serial number and the counter, before it can be used. the programming cycle allows the user to input a 192-bit serial data stream which is then stored inter- nally in eeprom. programming will be initiated by forcing the data line high after the s2 line has been held high for the appropriate length of time. refer to table 6-1 and figure 6-1. after the program mode is entered, a delay must be provided to the device for the automatic bulk write cycle to complete. this will write all locations in the eeprom to all zeros. the device can then be programmed by clocking in 16 bits at a time, using s2 as the clock line and data as the data in line. after each 16-bit word is loaded, a programming delay is required for the internal program cycle to complete. this delay can take up to twc. the HCS101 will signal that the write is complete by sending out a train of ack pulses, t ackh high, t ackl low on data. the ack pulses will continue until s2 is dropped. these times can be used to calculate the oscillator calibration value. the first pulse?s width should not be used for calibration. at the end of the programming cycle, the device can be verified as shown in figure 6-2 by reading back the eeprom. reading is done by clocking the s2 line and reading the data bits on the data pin. a verify opera- tion can only be done once, immediately following the program cycle . figure 6-1: program ming waveforms figure 6-2: verify waveforms note: to ensure that the device does not acci- dentally enter programming mode, data should never be pulled high by the circuit connected to it. special care should be taken when driving pnp rf transistors. data enter program mode (data) (clock) note: s0 and s1 button inputs to be held to ground during the entire programming sequence. bit 0 bit 1 bit 2 bit 3 bit 14 bit 15 bit 16 bit 17 t ph 1 t pbw t ps repeat 12 times for each word t ph 2 t clkh t clkl t wc t ds s2 data for word 1 t dh t clkl initiate data polling here write cycle complete here t aclkl t aclkh calibration pulses t ph o l d data (clock) (data) note: if a verify operation is to be done, then it must immediately follow the program cycle. end of programming cycle begin verify cycle here bit 1 bit 2 bit 3 bit 15 bit 14 bit 16 bit 17 bit190 bit191 t wc data in word 0 t dv s2 bit 0 bit191 bit190
HCS101 ds41115d-page 8 preliminary ? 1999-2013 microchip technology inc. table 6-1: programming/ver ify timing requirements note 1: typical values - not tested in production v dd = 5.0v 10% 25 ?? c 5 ? c parameter symbol min. max. units program mode setup time t ps 2.0 5.0 ms hold time 1 t ph 14.0 ? ms hold time 2 t ph 250 ? s bulk write time t pbw 4.0 ? ms program delay time t prog 4.0 ? ms program cycle time t wc 50 ? ms clock low time t clkl 50 ? s clock high time t clkh 50 ? s data setup time t ds 0?s data hold time t dh 30 ? s data out valid time t dv ?30s hold time t phold 100 ? s (1) acknowledge low time t ackl 800 ? s (1) acknowledge high time t ackh 800 ? s (1)
? 1999-2013 microchip technology inc. preliminary ds41115d-page 9 HCS101 7.0 electrical characteristics for HCS101 absolute maximum ratings ? v dd supply voltage ............................................................................................................... ......................-0.3 to 13.5 v v in input voltage ................................................................................................................ ................ -0.3 to v dd + 0.3 v v out output voltage ................................................................................................................ .......... -0.3 to v dd + 0.3 v i out max output current ............................................................................................................ ............................. 50 ma t stg storage temperature (note) .............................................................................................................. -55 to +125c t lsol lead soldering temp (note) ......................................................................................................................... 300c v esd esd rating ................................................................................................................... .................................2000 v table 7-1: dc characteristics ? 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 condi- tions 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. commercial (c):t amb = 0 ? c to +70 ? c industrial (i):t amb = -40 ? c to +85 ? c 3.5v < v dd < 5.0v 5.0v < v dd < 13.3v parameter sym. min. typ 1 max. min. typ 1 max. unit conditions operating current (avg) (2) i cc ?0.5 ?2 ma ma standby current i ccs 0.1 1.0 0.1 1.0 a auto-shutoff current (3,4) i ccs 40 75 160 300 a high level input voltage v ih 0.55v dd v dd +0.3 2.75 v dd +0.3 v low level input voltage v il -0.3 0.15v dd -0.3 0.75 v high level output voltage v oh 0.6v dd 3.3 v v i oh = -1.0 ma v dd = 3.5v i oh = -2.0 ma v dd = 10v low level output voltage v ol 0.08v dd 0.4 v v i ol = 1.0 ma v dd = 3.5v i ol = 2.0 ma v dd = 10v pull-down resistance; s0-s2 r so - 2 40 60 80 40 60 80 k ? v dd = 4.0v pull-down resistance; data r data 80 120 160 80 120 160 k ? v dd = 4.0v note 1: typical values are at 25 ? c. 2: no load. 3: auto-shutoff current specification does not include the current through the input pulldown resistors. 4: auto-shutoff current is periodically sampled and not 100% tested.
HCS101 ds41115d-page 10 preliminary ? 1999-2013 microchip technology inc. figure 7-1: power-up and transmit timing table 7-2: power-up and transmit timing (2) figure 7-2: preamble/header format figure 7-3: data word format (xser = 0) standard operating conditions (unless otherwise specified): commercial (c): 0c ? ta ? +70c industrial (i):-40c ? ta ? +85c symbol parameters min. typ. max. units conditions t bp time to second button press 10 + code word time ? 26 + code word time ms (note 1) t td transmit delay from button detect 12 ? 26 ms t db debounce delay 6 ? 20 ms t to auto-shutoff time-out period ? 27 ? s ts start pulse delay ? 4.5 ? ms note 1: t bp is the time in which a second button can be pressed without completion of the first code word and the intention was to press the combination of buttons. 2: typical values - not tested in production. button press detect sn t db data t td code word transmission t to code word 1 code word 2 code word 3 code word n t bp t s preamble header p1 p12 23 t e 10 t e data word transmission bit 0 bit 1 bit 0 bit 1 header bit 30 bit 31 bit 32 bit 33 bit 58 bit 59 guard lsb lsb msb msb s3* s0 s1 s2 vlow time serial number 1 function code status bit 60 bit 61 bit 62 bit 63 bit 64 bit 65 * see s3set counter & serial number 3 & function code
? 1999-2013 microchip technology inc. preliminary ds41115d-page 11 HCS101 table 7-3: code word transmission timing requirements v dd = +3.5 to 13.3v commercial (c):t amb = 0 ? c to +70 ? c industrial (i):t amb = -40 ? c to +85 ? c code words transmitted all 1 out of 2 symbol characteristic number of t e min. typ. max. min. typ. max. units t e basic pulse element 1 360 400 440 180 200 220 s t bp pwm bit pulse width 3 ? 3 ? ? 3 ? ms t p preamble duration 24 8.64 9.6 10.56 4.32 4.8 5.28 ms t h header duration 10 3.6 4.0 4.4 1.8 2.0 2.2 ms t hop hopping code duration 96 34.56 38.4 42.24 17.28 19.2 21.12 ms t fix fixed code duration 102 36.72 40.8 44.88 18.36 20.4 22.44 ms t g guard time 39 14.04 15.6 17.16 7.02 7.8 8.58 ms ? total transmit time 271 97.56 108.4 119.24 48.78 54.2 59.62 ms ? pwm data rate ? 925 833 757 1851 1667 1515 bps note: the timing parameters are not tested but derived from the oscillator clock.
HCS101 ds41115d-page 12 preliminary ? 1999-2013 microchip technology inc. 8.0 packaging information 8.1 package marking information 8-lead pdip (300 mil) 8-lead soic (150 mil) xxxxxxxx xxxxxnnn yyww HCS101 xxxxxnnn 0025 xxxxxxx xxxyyww nnn HCS101 xxx0025 nnn legend: xx...x customer-specific information y year code (last digit of calendar year) yy year code (last 2 digits of calendar year) ww week code (week of january 1 is week ?01?) nnn alphanumeric traceability code pb-free jedec designator for matte tin (sn) * this package is pb-free. the pb-free jedec designator ( ) can be found on the outer packaging for this package. note : 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. 3 e 3 e
? 1999-2013 microchip technology inc. preliminary ds41115d-page 13 HCS101 8.2 package details 8-lead plastic dual in-line (p) - 300 mil (pdip) b1 b a1 a l a2 p ? e eb ? c e1 n d 1 2 units inches* millimeters dimension limits min nom max min nom max number of pins n 88 pitch p .100 2.54 top to seating plane a .140 .155 .170 3.56 3.94 4.32 molded package thickness a2 .115 .130 .145 2.92 3.30 3.68 base to seating plane a1 .015 0.38 shoulder to shoulder width e .300 .313 .325 7.62 7.94 8.26 molded package width e1 .240 .250 .260 6.10 6.35 6.60 overall length d .360 .373 .385 9.14 9.46 9.78 tip to seating plane l .125 .130 .135 3.18 3.30 3.43 lead thickness c .008 .012 .015 0.20 0.29 0.38 upper lead width b1 .045 .058 .070 1.14 1.46 1.78 lower lead width b .014 .018 .022 0.36 0.46 0.56 overall row spacing eb .310 .370 .430 7.87 9.40 10.92 mold draft angle top ? 51015 51015 mold draft angle bottom ? 51015 51015 * controlling parameter notes: dimensions d and e1 do not include mold flash or protrusions. mold flash or protrusions shall not exceed jedec equivalent: ms-001 drawing no. c04-018 .010? (0.254mm) per side. significant characteristic note: for the most current package drawings, please see the microchip packaging specification located at http://www.microchip.com/packaging
HCS101 ds41115d-page 14 preliminary ? 1999-2013 microchip technology inc. 8-lead plastic small outline (sn) - narrow, 150 mil (soic) foot angle ? 048048 15 12 0 15 12 0 ? mold draft angle bottom 15 12 0 15 12 0 ? mold draft angle top 0.51 0.42 0.33 .020 .017 .013 b lead width 0.25 0.23 0.20 .010 .009 .008 c lead thickness 0.76 0.62 0.48 .030 .025 .019 l foot length 0.51 0.38 0.25 .020 .015 .010 h chamfer distance 5.00 4.90 4.80 .197 .193 .189 d overall length 3.99 3.91 3.71 .157 .154 .146 e1 molded package width 6.20 6.02 5.79 .244 .237 .228 e overall width 0.25 0.18 0.10 .010 .007 .004 a1 standoff 1.55 1.42 1.32 .061 .056 .052 a2 molded package thickness 1.75 1.55 1.35 .069 .061 .053 a overall height 1.27 .050 p pitch 8 8 n number of pins max nom min max nom min dimension limits millimeters inches* units 2 1 d n p b e e1 h l ? c 45 ? ? a2 ? a a1 * controlling parameter notes: dimensions d and e1 do not include mold flash or protrusions. mold flash or protrusions shall not exceed .010? (0.254mm) per side. jedec equivalent: ms-012 drawing no. c04-057 significant characteristic note: for the most current package drawings, please see the microchip packaging specification located at http://www.microchip.com/packaging
? 1999-2013 microchip technology inc. preliminary ds41115d-page 15 HCS101 on-line support microchip provides on-line support on the microchip world wide web (www) site. the web site is used by microchip as a means to make files and information easily available to customers. to view the site, the user must have access to the internet and a web browser, such as netscape or microsoft explorer. files are also available for ftp download from our ftp site. connecting to the microchip internet web site the microchip web site is available by using your favorite internet browser to attach to: www.microchip.com the file transfer site is available by using an ftp ser- vice to connect to: ftp://ftp.microchip.com the web site and file transfer site provide a variety of services. users may download files for the latest development tools, data sheets, application notes, user's guides, articles and sample programs. a vari- ety of microchip specific business information is also available, including listings of microchip sales offices, distributors and factory representatives. other data available for consideration is: ? latest microchip press releases ? technical support section with frequently asked questions ? design tips ?device errata ? job postings ? microchip consultant program member listing ? links to other useful web sites related to microchip products ? conferences for products, development sys- tems, technical information and more ? listing of seminars and events
HCS101 ds41115d-page 16 preliminary ? 1999-2013 microchip technology inc. reader response it is our intention to provide you with the best documentation possible to ensure successful use of your microchip prod- uct. 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 data sheet. to : technical publications manager re: reader response total pages sent from: name company address city / state / zip / country telephone: (_______) _________ - _________ application (optional): would you like a reply? y n device: literature number: questions: fax: (______) _________ - _________ ds41115d HCS101 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 data sheet easy to follow? if not, why? 4. what additions to the data sheet do you think would enhance the structure and subject? 5. what deletions from the data sheet 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? 8. how would you improve our software, systems, and silicon products?
? 1999-2013 microchip technology inc. preliminary ds41115d-page 17 HCS101 HCS101 product identification system to order or obtain information, e.g., on pricing or delivery, refer to the factory or the listed sales office. sales and support revision history revision d (january 2013) added a note to each package outline drawing. package: p = plastic dip (300 mil body), 8-lead) sn = plastic soic (150 mil body), 8-lead temperature blank = 0c to +70c range: i=?40c to +85c device: HCS101 = code hopping encoder HCS101t = code hopping encoder (tape and reel) HCS101 - /p data sheets products supported by a preliminary data sheet may have an e rrata sheet describing minor operational differences and recom- mended workarounds. to determine if an erra ta sheet exists for a particular device, please contact one of the following: 1. your local microchip sales office. 2. the microchip worldwide site. (www.microchip.com)
HCS101 ds41115d-page 18 preliminary ? 1999-2013 microchip technology inc. notes:
? 1999-2013 microchip technology inc. ds41115d-page 19 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, k ee l oq , k ee l oq logo, mplab, pic, picmicro, picstart, pic 32 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, app lication 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. ? 1999-2013, microchip technology incorporated, printed in the u.s.a., all rights reserved. printed on recycled paper. isbn: 9781620769775 note the following details of the code protection feature on microchip devices: ? microchip products meet the specification cont ained 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 i n 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 produc ts in a manner outside the operating specif ications 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 semiconduc tor 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 co mmitted to continuously improvin g 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. 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, k ee l oq ? 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. quality management s ystem certified by dnv == iso/ts 16949 ==
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