TC14433/A 3-1/2 Digit, Analog-to-Digital Converter Features Package Type • Accuracy:±0.05%ofReading±1Count 24-Pin PDIP (Wide) (cid:127) TwoVoltageRanges:1.999Vand199.9mV 24-Pin CERDIP (Wide) (cid:127) Upto25ConversionsPerSecond 24-Pin SOIC (Wide) (cid:127) Z >1000MOhms IN VAG 1 24 V DD (cid:127) SinglePositiveVoltageReference (cid:127) Auto-PolarityandAuto-Zero VREF 2 23 Q3 (cid:127) OverrangeandUnderrangeSignalsAvailable VX 3 22 Q2 (cid:127) OperatesinAuto-RangingCircuits R1 4 21 Q1 (cid:127) UsesOn-ChipSystemClockorExternalClock R1/C1 5 TC14433/A 20 Q0 (cid:127) WideSupplyRange:±4.5Vto±8V C1 6 19 DS1 Applications CO1 7 18 DS2 (cid:127) PortableInstruments CO2 8 17 DS3 (cid:127) DigitalVoltmeters (cid:127) DigitalPanelMeters DU 9 16 DS4 (cid:127) DigitalScales CLK1 10 15 OR (cid:127) DigitalThermometers CLK0 11 14 EOC (cid:127) RemoteA/DSensingSystems VEE 12 13 VSS (cid:127) MPUSystems Device Selection Table 28-Pin PLCC F Temperature E G D PartNumber Package X R A C D 3 2 Range V V V N V Q Q 4 3 2 1 28 27 26 TC14433AEJG 24-PinCERDIP -40°Cto+85°C (Wide) R1 5 25 Q1 TC14433AELI 28-PinPLCC -40°Cto+85°C R1/C1 6 24 Q0 TC14433AEPG 24-PinPDIP -40°Cto+85°C C1 7 23 DS1 (Wide) NC 8 TC14433/A 22 NC TC14433COG 24-PinSOIC 0°Cto+70°C (Wide) CO1 9 21 DS2 TC14433EJG 24-PinCERDIP -40°Cto+85°C CO2 10 20 DS 3 (Wide) DU 11 19 DS4 TC14433ELI 28-PinPLCC -40°Cto+85°C 12 13 14 15 16 17 18 TC14433EPG 24-PinPDIP -40°Cto+85°C 1 0 E C S C R (Wide) CLK CLK VE N VS EO O Note 1: NC=Nointernalconnection(In28-PinPLCC). 2: 24-PinSOIC(Wide)package,onlyfor TC14433device.  2002MicrochipTechnologyInc. DS21394B-page 1

TC14433/A GeneralDescription The TC14433A features improved performance over theindustrystandardTC14433. Rollover, whichisthe The TC14433 is a low power, high performance, measurement of identical positive and negative monolithic CMOS 3-1/2 digit A/D converter. The signals, is specified to have the same reading within TC14433combinesbothanaloganddigitalcircuitson one count for the TC14433A. Power consumption of a single IC, thus minimizing the number of external the TC14433A is typically 4mW, approximately one- components. halfthatoftheindustrystandardTC14433. This dual slope A/D converter provides automatic The TC14433/A is available in 24-Pin PDIP, 24-Pin polarity and zero correction with the addition of two CERDIP, 24-Pin SOIC (TC14433 device only), and external resistors and two capacitors. The full scale 28-PinPLCCpackages. voltagerangeofthisratiometricICextendsfrom199.9 millivoltsto1.999volts.TheTC14433canoperateover a wide range of power supply voltages, including batteriesandstandard5-voltsupplies. TypicalApplication MCP1525 20k +5V VIN VOUT 1µF VSS -5V +5V +5V +5V 300k 0.1 0.1µF Segment 1µF RC Resistors 1110 2 1224 1 16 150Ω (7) VX 3 23 4 9 7 10 1 22 2 10 6 11 R1* 21 3 11 5 12 4 20 5 12 4 13 TC14433 5 13 3 14 4543B 6 13 -5V 14 2 15 0.1µF** 15 1 16 7 9 8 6 7 1413 8 14 0.1µF** 1519181716 -5V --55VV Minus Sign f g e d c b a 200Ω -5V MPS-A12 Plus Sign 6 -5V *R1 = 470kΩ for 2V Range 5 DSQ 1 51k 110Ω *R*M1 y=la 2r7 CkaΩp faocri t2o0r0mV Range 43 CRQ 2 +5V CAnoomdme oLned 8 Display 14013B 911DCRSQQ 1132 50µF 0.1µF 710 14 MPS-A12 (4) DS4 -5V +5V -5V DS3 DS2 DS1  DS21394B-page 2 2002MicrochipTechnologyInc.

TC14433/A 1.0 ELECTRICAL *Stresses above those listed under "Absolute Maximum Ratings"maycausepermanentdamagetothedevice.These CHARACTERISTICS arestressratingsonlyandfunctionaloperationofthedevice attheseoranyotherconditionsabovethoseindicatedinthe Absolute Maximum Ratings* operation sections of the specifications is not implied. Exposure to Absolute Maximum Rating conditions for SupplyVoltage(V –V )...................-0.5Vto+18V DD EE extendedperiodsmayaffectdevicereliability. VoltageonAnyPin: ReferencetoV .....................-0.5Vto(V +0.5) EE DD DCCurrent,AnyPin:........................................±10mA PowerDissipation(T ≤70°C): A PlasticPLCC.................................................1.0W PlasticPDIP..................................................940W SOIC.............................................................940W CERDIP.......................................................1.45W OperatingTemperatureRange...............0°Cto+70°C StorageTemperatureRange..............-65°Cto+160°C TC14433/AELECTRICALSPECIFICATIONS ElectricalCharacteristics:V =+5V,V =-5V,C =0.1µF,(Mylar),C =0.1µF,R =300kΩ,R =470kΩ @V =2V, DD EE 1 0 C 1 REF R =27kΩ @V =200mV,unlessotherwisespecified. 1 REF Symbol Parameter Min Typ Max Min Typ Max Units TestConditions AnalogInput TA=+25°C TA=+25°C SYE RolloverError(Positive)and -1 — +1 — — — Counts 200mVFullScale NegativeFullScale V -V =+V IN IN IN Symmetry NL LinearityOutputReading -0.05 +0.05 +0.05 — — — %rdg V =2V REF (Note1) -1count — +1count — — — %rdg V =200mV REF SOR StabilityOutputReading — — 2 — — — LSD V =1.99V, X (Note2) V =2V REF — — 3 — — — LSD V =199mV, X V =200mV REF ZOR ZeroOutputReading — 0 0 — — — LSD V =0V,V =2V X REF IIN BiasCurrent: AnalogInput — ±20 ±100 — — — pA ReferenceInput — ±20 ±100 — — — pA AnalogGround — ±20 ±100 — — — pA CMRR CommonmodeRejection — 65 — — — — dB V =1.4V,V =2V, X REF F =32kHz OC Note 1: Accuracy-Theaccuracyofthemeteratfullscaleistheaccuracyofthesettingofthereferencevoltage.Zerois recalculatedduringeachconversioncycle.Themeaningfulspecificationislinearity.Inotherwords,thedeviationfrom correctreadingforallinputsotherthanpositivefullscaleandzeroisdefinedasthelinearityspecification. 2: TheLSDstabilityfor200mVscaleisdefinedastherangethattheLSDwilloccupy95%ofthetime. 3: Pinnumbersreferto24-pinPDIP.  2002MicrochipTechnologyInc. DS21394B-page 3

TC14433/A TC14433/AELECTRICALSPECIFICATIONS (CONTINUED) ElectricalCharacteristics:V =+5V,V =-5V,C =0.1µF,(Mylar),C =0.1µF,R =300kΩ,R =470kΩ @V =2V, DD EE 1 0 C 1 REF R =27kΩ @V =200mV,unlessotherwisespecified. 1 REF Symbol Parameter Min Typ Max Min Typ Max Units TestConditions Digital V OutputVoltage — 0 0.05 — — 0.05 V V =0V, "0"Level OL SS (Pins14to23)(Note3) — -5 -4.95 — — -4.95 V V =-5V, "0"Level SS V OutputVoltage 4.95 5 — 4.95 — — V V =0V, "1"Level OH SS (Pins14to23)(Note3) 4.95 5 — 4.95 — — V V =-5V, "1"Level SS I OutputCurrent -0.2 -0.36 — -0.14 — — mA V =0V,V =4.6V OH SS OH (Pins14to23) Source -0.5 -0.9 — -0.35 — — mA V =-5V,V =5V SS OH Source I OutputCurrent 0.51 0.88 — 0.36 — — mA V =0V,V =0.4V OL SS OL (Pins14to23) Sink 1.3 2.25 — 0.9 — — mA V =-5V, SS V =-4.5VSink OL f ClockFrequency — 66 — — — — kHz R =300kΩ CLK C I InputCurrent-DU — ±0.00001 ±0.3 — — ±1 µA DU Power I QuiescentCurrent:14433A: — — — — — — — V toV ,I =0 Q DD EE SS — 0.4 2 — — 3.7 mA V =5,V =-5 DD EE — 1.4 4 — — 7.4 mA V =8,V =-8 DD EE QuiescentCurrent:14433: — — — — — — — V toV ,I =0 DD EE SS — 0.9 2 — — 3.7 mA V =5,V =-5 DD EE — 1.8 4 — — 7.4 mA V =8,V =-8 DD EE PSRR SupplyRejection — 0.5 — — — — mV/V V toV ,I =0, DD EE SS V =2V, REF V =5,V =-5 DD EE Note 1: Accuracy-Theaccuracyofthemeteratfullscaleistheaccuracyofthesettingofthereferencevoltage.Zerois recalculatedduringeachconversioncycle.Themeaningfulspecificationislinearity.Inotherwords,thedeviationfrom correctreadingforallinputsotherthanpositivefullscaleandzeroisdefinedasthelinearityspecification. 2: TheLSDstabilityfor200mVscaleisdefinedastherangethattheLSDwilloccupy95%ofthetime. 3: Pinnumbersreferto24-pinPDIP.  DS21394B-page 4 2002MicrochipTechnologyInc.

TC14433/A 2.0 PIN DESCRIPTIONS ThedescriptionsofthepinsarelistedinTable2.0. TABLE2-1: PINFUNCTIONTABLE PinNo. (24-PinPDIP) PinNo. Symbol Description (24-PinCERDIP) (28-PinPLCC) (24-PinSOIC) 1 2 V Thisistheanalogground.Ithasahighinputimpedance.Thepindeterminesthe AG referencelevelfortheunknowninputvoltage(V )andthereferencevoltage(V ). X REF 2 3 V Referencevoltage-FullscaleoutputisequaltothevoltageappliedtoV . REF REF Therefore,fullscalevoltageof1.999Vrequires2Vreferenceand199.9mVfullscale requiresa200mVreference.V functionsassystemresetalso.Whenswitched REF toV ,thesystemisresettothebeginningoftheconversioncycle. EE 3 4 V Theunknowninputvoltage(V )ismeasuredasaratioofthereferencevoltage X X (V )inarationetricA/Dconversion. REF 4 5 R Thispinisforexternalcomponentsusedfortheintegrationfunctioninthedual 1 slopeconversion.Typicalvaluesare0.1µF(mylar)capacitorforC . 1 5 6 R /C R =470kΩ(resistor)for2Vfullscale. 1 1 1 6 7 C R =27kΩ(resistor)for200mVfullscale.Clockfrequencyof66kHzgives250msec 1 1 conversiontime. 7 9 CO Thesepinsareusedforconnectingtheoffsetcorrectioncapacitor. 1 Therecommendedvalueis0.1µF. 8 10 CO Thesepinsareusedforconnectingtheoffsetcorrectioncapacitor. 2 Therecommendedvalueis0.1µF. 9 11 DU Displayupdateinputpin.WhenDUisconnectedtotheEOCoutput,every conversionisdisplayed.Newdatawillbestrobedintotheoutputlatchesduringthe conversioncycleifapositiveedgeisreceivedonDU,priortotherampdowncycle. Whenthispinisdrivenfromanexternalsource,thevoltageshouldbereferenced toV . SS 10 12 CLK Clockinputpins.TheTC14433hasitsownoscillatorsystemclock.Connectinga 1 singleresistorbetweenCLK andCLK setstheclockfrequency. 1 0 11 13 CLK AcrystalorOCcircuitmaybeinsertedinlieuofaresistorforimproved CLK ,the 0 1 clockinput,canbedrivenfromanexternalclocksource,whichneedonlyhave standardCMOSoutputdrive.ThispinisreferencedtoV forexternalclockinputs. EE A300kΩresistoryieldsaclockfrequencyofabout66kHz.SeeSection5.0Typical Characteristics.(AlsoseeFigure4-3foralternatecircuits.) 12 14 V Negativepowercurrent.Connectionpinforthemostnegativesupply.Pleasenote EE thecurrentfortheoutputdrivecircuitisreturnedthroughV .Typicalsupply SS currentis0.8mA. 13 16 V Negativepowersupplyforoutputcircuitry.Thispinsetsthelowvoltagelevelforthe SS outputpins(BCD,DigitSelects,EOC,OR).Whenconnectedtoanalogground,the outputvoltageisfromanaloggroundtoV .IfconnectedtoV ,theoutputswing DD EE isfromV toV .TherecommendedoperatingrangeforV isbetweenthe EE DD SS V -3voltsandV . DD EE 14 17 EOC Endofconversionoutputgeneratesapulseattheendofeachconversioncycle. Thisgeneratedpulsewidthisequaltoonehalftheperiodofthesystemclock. 15 18 OR Overrangepin.Normallythispinissethigh.WhenV exceedsV theORislow. X REF 16 19 DS Digitselectpin.Thedigitselectoutputgoeshighwhentherespectivedigitis 4 selected.TheMSD(1/2digitturnsonimmediatelyafteranEOCpulse). 17 20 DS TheremainingdigitsturnoninsequencefromMSDtoLSD. 3 18 21 DS ToensurethattheBCDdatahassettled,aninterdigitblankingtimeoftwoclock 2 periodsisincluded. 19 23 DS Clockfrequencydividedby80equalsmultiplexrate.Forexample,asystemclockof 1 60kHzgivesamultiplexrateof0.8kHz. 20 24 Q SeeFigure4-4fordigitselecttimingdiagram. 0  2002MicrochipTechnologyInc. DS21394B-page 5

TC14433/A TABLE2-1: PINFUNCTIONTABLE (CONTINUED) PinNo. (24-PinPDIP) PinNo. Symbol Description (24-PinCERDIP) (28-PinPLCC) (24-PinSOIC) 21 25 Q BCDdataoutputpin.MultiplexedBCDoutputscontainthreefulldigitsof 1 informationduringdigitselectDS ,DS ,DS . 2 3 4 22 26 Q DuringDS ,the1/2digit,overrange,underrangeandpolarityinformation 2 1 isavailable. 23 27 Q RefertotheTruthTable4-1. 3 24 28 V Positivepowersupply.Thisisthemostpositivepowersupplypin. DD 1 NC NotUsed. — 8 NC NotUsed. — 15 NC NotUsed. — 22 NC NotUsed.  DS21394B-page 6 2002MicrochipTechnologyInc.

TC14433/A 3.0 DETAILED DESCRIPTION Segment1-Theoffsetcapacitor(C ),whichcompen- O satesfortheinputoffsetvoltagesofthebufferandinte- The TC14433 CMOS IC becomes a modified dual- grator amplifiers, is charged during this period. slope A/D with a minimum of external components. However, the integrator capacitor is shorted. This ThisIChasthecustomaryCMOSdigitallogiccircuitry, segmentrequires4000clockperiods. aswellasCMOSanalogcircuitry.Itprovidestheuser Segment2-Duringthissegment,theintegratoroutput with digital functions such as (counters, latches, decreasestothecomparatorthresholdvoltage.Atthis multiplexers), and analog functions such as time,anumberofcountsequivalenttotheinputoffset (operational amplifiers and comparators) on a single voltageofthecomparatorisstoredintheoffsetlatches chip.RefertotheFunctionalBlockdiagram,Figure3-3 forlateruseintheauto-zeroprocess.Thetimeforthis Features of the TC14433/A include auto-zero, high segmentisvariableandlessthan800clockperiods. input impedances and auto-polarity. Low power Segment 3- This segment of the conversion cycle is consumption and a wide range of power supply volt- thesameasSegment1. ages are also advantages of this CMOS device. The system'sauto-zerofunctioncompensatesfortheoffset Segment4-Segment4isanupgoingrampcyclewith voltage of the internal amplifiers and comparators. In the unknown input voltage (VX as the input to the this"ratiometricsystem,"theoutputreadingistheratio integrator. Figure4-2 shows the equivalent oftheunknownvoltagetothereferencevoltage,where configuration of the analog section of the TC14433. a ratioof 1 is equal to the maximum count of 1999. It The actual configuration of the analog section is takesapproximately16,000clockperiodstocomplete dependentuponthepolarityoftheinputvoltageduring one conversion cycle. Each conversion cycle may be thepreviousconversioncycle. dividedinto6segments.Figure3-1showstheconver- sioncyclein6segmentsforbothpositiveandnegative FIGURE3-2: EQUIVALENTCIRCUIT inputs. DIAGRAMS OFTHE ANALOGSECTION FIGURE3-1: INTEGRATOR DURINGSEGMENT4OF WAVEFORMSATPIN6 THETIMINGCYCLE Start End C1 Buffer TSNieumgmemb eenrt 1 2 3 4 5 VX6 VX +– R1 Int–egrator C+omparator Typical + Positive – Input Voltage VX Typical Segment 5 - This segment is a down-going ramp Negative period with the reference voltage as the input to the Input Voltage integrator. Segment 5 of the conversion cycle has a timeequaltothenumberofcountsstoredintheoffset storagelatchesduringSegment2.Asaresult,thesys- temzerosautomatically. Segment 6 - This is an extension of Segment 5. The time period for thisportion is 4000 clock periods. The results of the A/D conversion cycle are determined in thisportionoftheconversioncycle.  2002MicrochipTechnologyInc. DS21394B-page 7

TC14433/A FIGURE3-3: FUNCTIONAL BLOCKDIAGRAM 20-23 Q – Q3 BDC Data Multiplexer RC 16 -19 DS1 – DS4 Digit Strobe 10 11 Latches Polarity Detect CLK1 CLK0 Clock 1's 10's 100's 1,000's TC14433/A 15 Overflow OROverrange Control Logic AnalogC MSuObSsystem 213 VVRAGEF RAneafeloregn Gcero Vuonldtage VX Analog Input 4 5 6 7 8 R1 R1/C C1 CO1 CO2 VDD = Pin 24 Display End of VSS = Pin 13 Update 9 14 Conversion VEE = Pin 12 DU EOC Integrator Offset  DS21394B-page 8 2002MicrochipTechnologyInc.

TC14433/A 4.0 TYPICAL APPLICATIONS TheTypicalApplicationcircuitisanexampleofa3-1/2 Note: Ifthemostsignificantdigitisconnectedto digit voltmeter using the TC14433 with Common- a display other than a "1" only, such as a full digit display, segments other than b anodedisplays.Thissystemrequiresa2.5Vreference. andc must be disconnected. The BCD to Full scale may be adjusted to 1.999V or 199.9 mV. 7-segment decoder must blank on BCD Inputoverrangeisindicatedbyflashingadisplay.This display uses LEDs with common anode digit lines. inputs1010to1111.SeeTable4-1 Power supply for this system is shown as a dual ±5V supply;however,theTC14433willoperateoverawide TABLE 4-1: TRUTHTABLE voltagerange Coded The circuit in Figure4-1 shows a 3-1/2 digit LCD Q Q Q Q Condition BDCto7-Segment voltmeter. The 14024B provides the low frequency ofMSD 3 2 1 0 Decoding square wave signal drive to the LCD backplane. Dual power supplies are shown here; however, one supply +0 1 1 1 0 Blank may be used when VSS is connected to VEE. In this -0 1 0 1 0 Blank case,VAGmustbeatleast2.8VaboveVEE. +0UR 1 1 1 1 Blank Whenonly segmentsbandcof thedecoder arecon- Blank -0UR 1 0 1 1 nected to the 1/2 digit of the display, 4, 0, 7 and 3 +1 0 1 0 0 4–1 Hookup appearas1. -1 0 0 0 0 0–1 onlysegments The overrange indication (Q = 0 and Q = 1) occurs 3 0 bandctoMSD whenthecountisgreaterthan1999;(e.g.,1.999Vfor +1OR 0 1 1 1 7–1 areferenceof2V)Theunderrangeindication,usefulfor -1OR 0 0 1 1 3–1 auto-ranging circuits, occurs when the count is less Note 1: Q -1/2digit,lowfor"1",highfor"0". 3 than180;(e.g.,0.180Vforareferenceof2V). Q -Polarity:"1"=positive,"0"=negative. 2 Q -OutofrangeconditionexistsifQ =1. 0 0 WhenusedinconjunctionwithQ ,thetypeof 3 outofrangeconditionisindicated;i.e.,Q =0→ 3 ORorQ =1→UR. 3 Figure4-2 isanexampleofa3-1/2digitLEDvoltmeter with a minimum of external components, (only 11 additional components). In this circuit, the 14511B provides the segment drive and the 75492 or 1413 providessinkfordigitcurrent.Displayisblankedduring theoverrangecondition.  2002MicrochipTechnologyInc. DS21394B-page 9

TC14433/A FIGURE4-1: 3-1/2DIGITVOLTMETERWITHLCDDISPLAY 0.1µF 470k 0.1µF C 14024B -V R V+ C01C02 R1 R1/C 1C1 VX DS4 MCP1525 DS3 VIN VAG DS2 VOUT TC14433 DQS01 VSS Q1 20k VREF Q2 1µF Q3 VDDVSSVEEEOEDU RC RC 14070B 1/4 +V -V 300k +V 14013B 14070B 1/4 D Q 1/2 Digit CR RQ 14013B Plus +V D Q Sign BI D C B A Ph LD BI D C B A Ph LD BI D C B A Ph LD CR RQ 14543B +V 14543B +V 14543B +V -V 1/4 14070B Minus g f e d c b a -V g f e d c b a -V g f e d c b a -V Sign +V  DS21394B-page 10 2002MicrochipTechnologyInc.

TC14433/A FIGURE4-2: 3-1/2DIGITLEDVOLTMETERWITHLOWCOMPONENTCOUNTUSING COMMONCATHODE DISPLAYS 470k 0.1µF 0.1µF +5V VX Input RV1XR1/C C1C0C1LCK012 300k Resitor Network MCP1525 VAG CLK0 or Individual VIN DU OR Resistor* VOUT EOE Q0 A B1 a R VSS 20k VREFTC14433 QQ12 CB I4511Bbc 1µF VSS +5V DLT de VDD LE f VEE VSS VDDg RDP DS4DS3DS2DS1 Alternate Overrange Circuit RM with Separated LED VEE** +5V 1/6 75492 RR (Minus) Minus OR OR +5V Common Control 1/7 1413 Cathode Led Display 75492 OR 1413* Digit Drivers Note 1: ForV =2000V;V:1.999Vfullscale. REF 2: ForV =200mV;V:199.9mVfullscale(change470ktoR=27kanddecimalpointposition. REF 3: Peakdigitcurrentforaneightdisplayedis7timesthesegmentcurrent: *Toincreasesegmentcurrentcapability,addtwo75491ICsbetween14511Bandresistornetwork. Theuseofthe1413asdigitdriverincreasesdigitcurrentcapabilityoverthe75492. **Vcanrangebetween-2.8Vand-11V. FIGURE4-3: ALTERNATEOSCILLATORCIRCUITS (A) Crystal Oscillator Circuit (B) LC Oscillator Circuit 10 10 CLK1 CLK1 C1 18M TC14433 L C TC14433 11 11 CLK0 CLK0 47k C2 C f = 1 2/LC 2π 10pF < C1 and C2 < 200pF For L = 5mH and C = 0.01µF, f ≅ 32kHz  2002MicrochipTechnologyInc. DS21394B-page11

TC14433/A FIGURE4-4: DIGITSELECTTIMINGDIAGRAM ≈16,400 Clock Cycles EOC 1/2 Clock Cycle Between EOC Pulses 18 Clock Cycles DS1 1/2 Digit (MSD) 2 Clock Cycles DS2 DS3 DS4 LCD  DS21394B-page 12 2002MicrochipTechnologyInc.

TC14433/A 5.0 TYPICAL CHARACTERISTICS Note: Thegraphsandtablesprovidedfollowingthisnoteareastatisticalsummarybasedonalimitednumberof samplesandareprovidedforinformationalpurposesonly.Theperformancecharacteristicslistedhereinare nottestedorguaranteed.Insomegraphsortables,thedatapresentedmaybeoutsidethespecified operatingrange(e.g.,outsidespecifiedpowersupplyrange)andthereforeoutsidethewarrantedrange. Typical Rollover Error vs. Power Supply Skew Typical Quiescent Power Supply Current vs.Temp. T) 4 4 ROLLOVER ERROR (IN LSD) AT FULL SCALEUSE COUNT LESS MINUS COUN ---3210123 N ote: RRfroeoalmldo ivPneogrs fEiotirrvr oethr t eois sN tahemege aD tAiivfnfeea.rleongc Ien pinu tO Suwtpitucth ed - QUIESCENT CURRENT (mA)Q123 VVVVEDEDEEDD ==== --++8585VVVV L I (P -4 -3 -2 -1 0 1 2 3 4 0 -40 -20 0 20 40 60 80 100 (VDD I-IVEE I) - SUPPLY VOLTAGE SKEW (V) TA - TEMPERATURE (°C) Typical N-Channel Sink Current at VDD – VSS = 5 Volts Typical P-Channel Sink Current at VDD – VSS = 5 Volts 5 -3 mA) 4 mA) -40°C T ( T ( REN 3 -40°C REN-2 +25°C R R U +25°C U +85°C K C 2 +85°C K C N N-1 SI SI - D 1 - D I I 0 0 0 1 2 3 4 5 0 -1 -2 -3 -4 -5 VDS - DRAIN TO SOURCE VOLTAGE (VDC) VDS - DRAIN TO SOURCE VOLTAGE (VDC) Typical Clock Frequency vs. Resistor (RC) Typical % Change fo Clock Frequency vs. Temp. 4 Y (Hz) Note: ±5% Typical Variation over CY 3 ±5V Supply QUENC 1M Sofu ±p4p.l5yV V tool t±a8gVe Range EQUENGE) 21 E RN K FR CK FCHA 0 ±8V Supply - CLOCLK100k - CLOCLK(% ---231 Normalized at 25°C C I I 10k -4 10kΩ 100kΩ 1MΩ -40 -20 0 20 40 60 80 RC - CLOCK FREQUENCY RESISTOR TA - TEMPERATURE (°C) CONVERSION RATE = CLOCK FREQUENCY ±1.5% CONVERSION RATE = CLOCK FREQUENCY ±1.5% 16,400 16,400 CLOCK FREQUENCY CLOCK FREQUENCY MULTIPLEX RATE = MULTIPLEX RATE = 80 80  2002MicrochipTechnologyInc. DS21394B-page13

TC14433/A 6.0 PACKAGING INFORMATION 6.1 Package Marking Information Packagemarkingdatanotavailableatthistime. 6.2 Taping Form Component Taping Orientation for 24-Pin SOIC (Wide) Devices User Direction of Feed PIN 1 W P Standard Reel Component Orientation for TR Suffix Device Carrier Tape, Number of Components Per Reel and Reel Size Package Carrier Width (W) Pitch (P) Part Per Full Reel Reel Size 24-Pin SOIC (W) 24 mm 12 mm 1000 13 in Component Taping Orientation for 28-Pin PLCC Devices User Direction of Feed PIN 1 W P Standard Reel Component Orientation for TR Suffix Device Carrier Tape, Number of Components Per Reel and Reel Size Package Carrier Width (W) Pitch (P) Part Per Full Reel Reel Size 28-Pin PLCC 24 mm 16 mm 750 13 in  DS21394B-page 14 2002MicrochipTechnologyInc.

TC14433/A 6.3 Package Dimensions 24-Pin PDIP (Wide) PIN 1 .555 (14.10) .530 (13.46) 1.270 (32.26) .610 (15.49) 1.240 (31.50) .590 (14.99) .200 (5.08) .140 (3.56) .040 (1.02) .150 (3.81) .020 (0.51) .015 (0.38) 3°MIN. .008 (0.20) .115 (2.92) .700 (17.78) .610 (15.50) .110 (2.79) .070 (1.78) .022 (0.56) .090 (2.29) .045 (1.14) .015 (0.38) Dimensions: inches (mm) 24-Pin CERDIP (Wide) PIN 1 .540 (13.72) .510 (12.95) .098 (2.49) MAX. .030 (0.76) MIN. 1.270 (32.26) .620 (15.75) 1.240 (31.50) .590 (15.00) .060 (1.52) .210 (5.33) .020 (0.51) .170 (4.32) .015 (0.38) 3° MIN. .200 (5.08) .150 (3.81) .008 (0.20) .125 (3.18) MIN. .700 (17.78) .620 (15.75) .110 (2.79) .065 (1.65) .020 (0.51) .090 (2.29) .045 (1.14) .016 (0.41) Dimensions: inches (mm)  2002MicrochipTechnologyInc. DS21394B-page15

TC14433/A Package Dimensions (Continued) 24-Pin SOIC (Wide) PIN 1 .299 (7.59) .419 (10.65) .291 (7.40) .398 (10.10) .615 (15.62) .597 (15.16) .104 (2.64) .097 (2.46) 8° .013 (0.33) MAX. .009 (0.23) .050 (1.27) TYP. .019 (0.48) .012 (0.30) .050 (1.27) .014 (0.36) .004 (0.10) .016 (0.40) Dimensions: inches (mm) 28-Pin PLCC PIN 1 .021 (0.53) .495 (12.58) .050 (1.27) TYP. .013 (0.33) .485 (12.32) .430 (10.92) .456 (11.58) .390 (9.91) .032 (0.81) .450 (11.43) .026 (0.66) .456 (11.58) .020 (0.51) MIN. .450 (11.43) .120 (3.05) .495 (12.58) .090 (2.29) .485 (12.32) .180 (4.57) .165 (4.19) Dimensions: inches (mm)  DS21394B-page 16 2002MicrochipTechnologyInc.

TC14433/A SALES AND SUPPORT DataSheets ProductssupportedbyapreliminaryDataSheetmayhaveanerratasheetdescribingminoroperationaldifferencesandrecom- mendedworkarounds.Todetermineifanerratasheetexistsforaparticulardevice,pleasecontactoneofthefollowing: 1. YourlocalMicrochipsalesoffice 2. TheMicrochipCorporateLiteratureCenterU.S.FAX:(480)792-7277 3. TheMicrochipWorldwideSite(www.microchip.com) Pleasespecifywhichdevice,revisionofsiliconandDataSheet(includeLiterature#)youareusing. NewCustomerNotificationSystem Registeronourwebsite(www.microchip.com/cn)toreceivethemostcurrentinformationonourproducts. ©2002MicrochipTechnologyInc. DS21394B-page17

TC14433/A NOTES: DS21394B-page18 ©2002MicrochipTechnologyInc.

TC14433/A Information contained in this publication regarding device Trademarks applicationsandthelikeisintendedthroughsuggestiononly andmaybesupersededbyupdates.Itisyourresponsibilityto The Microchip name and logo, the Microchip logo, FilterLab, ensure that your application meets with your specifications. KEELOQ, microID, MPLAB, PIC, PICmicro, PICMASTER, No representation or warranty is given and no liability is PICSTART,PROMATE, SEEVAL and TheEmbedded Control assumedbyMicrochipTechnologyIncorporatedwithrespect SolutionsCompanyareregisteredtrademarksofMicrochipTech- totheaccuracyoruseofsuchinformation,orinfringementof nologyIncorporatedintheU.S.A.andothercountries. patentsorotherintellectualpropertyrightsarisingfromsuch dsPIC,ECONOMONITOR,FanSense,FlexROM,fuzzyLAB, useorotherwise.UseofMicrochip’sproductsascriticalcom- In-Circuit Serial Programming, ICSP, ICEPIC, microPort, ponentsinlifesupportsystemsisnotauthorizedexceptwith Migratable Memory, MPASM, MPLIB, MPLINK, MPSIM, expresswritten approvalbyMicrochip.Nolicensesarecon- MXDEV,MXLAB,PICC,PICDEM,PICDEM.net,rfPIC,Select veyed,implicitlyorotherwise,underanyintellectualproperty Mode and Total Endurance are trademarks of Microchip rights. TechnologyIncorporatedintheU.S.A. SerializedQuickTurnProgramming(SQTP)isaservicemark ofMicrochipTechnologyIncorporatedintheU.S.A. All other trademarks mentioned herein are property of their respectivecompanies. © 2002, Microchip Technology Incorporated, Printed in the U.S.A.,AllRightsReserved. Printedonrecycledpaper. MicrochipreceivedQS-9000qualitysystem certificationforitsworldwideheadquarters, designandwaferfabricationfacilitiesin ChandlerandTempe,ArizonainJuly1999 andMountainView,CaliforniainMarch2002. TheCompany’squalitysystemprocessesand proceduresareQS-9000compliantforits PICmicro®8-bitMCUs,KEELOQ®codehopping devices,SerialEEPROMs,microperipherals, non-volatilememoryandanalogproducts.In addition,Microchip’squalitysystemforthe designandmanufactureofdevelopment systemsisISO9001certified.  2002MicrochipTechnologyInc. DS21394B-page19

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