ADC0808-N, ADC0809-N www.ti.com SNAS535H–OCTOBER1999–REVISEDMARCH2013 ADC0808/ADC0809 8-Bit μP Compatible A/D Converters with 8-Channel Multiplexer CheckforSamples:ADC0808-N,ADC0809-N FEATURES DESCRIPTION 1 • EasyInterfacetoAllMicroprocessors The ADC0808, ADC0809 data acquisition component 2 is a monolithic CMOS device with an 8-bit analog-to- • OperatesRatiometricallyorwith5V or DC digital converter, 8-channel multiplexer and AnalogSpanAdjustedVoltageReference microprocessor compatible control logic. The 8-bit • NoZeroorFull-ScaleAdjustRequired A/D converter uses successive approximation as the • 8-ChannelMultiplexerwithAddressLogic conversion technique. The converter features a high impedance chopper stabilized comparator, a 256R • 0VtoV InputRange CC voltage divider with analog switch tree and a • OutputsmeetTTLVoltageLevelSpecifications successive approximation register. The 8-channel • ADC0808EquivalenttoMM74C949 multiplexer can directly access any of 8-single-ended analogsignals. • ADC0809EquivalenttoMM74C949-1 The device eliminates the need for external zero and KEY SPECIFICATIONS full-scale adjustments. Easy interfacing to microprocessors is provided by the latched and • Resolution:8Bits decoded multiplexer address inputs and latched TTL • TotalUnadjustedError:±½LSBand ±1LSB TRI-STATEoutputs. • SingleSupply:5VDC The design of the ADC0808, ADC0809 has been • LowPower:15mW optimizedbyincorporatingthemostdesirableaspects of several A/D conversion techniques. The ADC0808, • ConversionTime:100μs ADC0809 offers high speed, high accuracy, minimal temperature dependence, excellent long-term accuracy and repeatability, and consumes minimal power. These features make this device ideally suited to applications from process and machine control to consumer and automotive applications. For 16- channelmultiplexerwithcommonoutput(sample/hold port) see ADC0816 data sheet. (See AN-247 (LiteratureNumberSNOA595)formoreinformation.) Block Diagram Connection Diagrams 1 Pleasebeawarethatanimportantnoticeconcerningavailability,standardwarranty,anduseincriticalapplicationsof TexasInstrumentssemiconductorproductsanddisclaimerstheretoappearsattheendofthisdatasheet. Alltrademarksarethepropertyoftheirrespectiveowners. 2 PRODUCTIONDATAinformationiscurrentasofpublicationdate. Copyright©1999–2013,TexasInstrumentsIncorporated Products conform to specifications per the terms of the Texas Instruments standard warranty. Production processing does not necessarilyincludetestingofallparameters.

ADC0808-N, ADC0809-N SNAS535H–OCTOBER1999–REVISEDMARCH2013 www.ti.com Figure1.PDIPPackage Figure2.PLCC SeePackageN0028E Package SeePackageFN0028A Thesedeviceshavelimitedbuilt-inESDprotection.Theleadsshouldbeshortedtogetherorthedeviceplacedinconductivefoam duringstorageorhandlingtopreventelectrostaticdamagetotheMOSgates. Absolute Maximum Ratings(1)(2)(3) SupplyVoltage(V )(4) 6.5V CC VoltageatAnyPinExceptControlInputs −0.3Vto(V +0.3V) CC VoltageatControlInputs −0.3Vto+15V (START,OE,CLOCK,ALE,ADDA,ADDB,ADDC) StorageTemperatureRange −65°Cto+150°C PackageDissipationatT =25°C 875mW A LeadTemp.(Soldering,10seconds) PDIPPackage(plastic) 260°C PLCCPackage VaporPhase(60seconds) 215°C Infrared(15seconds) 220°C ESDSusceptibility(5) 400V (1) AbsoluteMaximumRatingsindicatelimitsbeyondwhichdamagetothedevicemayoccur.DCandACelectricalspecificationsdonot applywhenoperatingthedevicebeyonditsspecifiedoperatingconditions. (2) AllvoltagesaremeasuredwithrespecttoGND,unlessotherwisespecified. (3) IfMilitary/Aerospacespecifieddevicesarerequired,pleasecontacttheTISalesOffice/Distributorsforavailabilityandspecifications. (4) AZenerdiodeexists,internally,fromV toGNDandhasatypicalbreakdownvoltageof7V . CC DC (5) Humanbodymodel,100pFdischargedthrougha1.5kΩresistor. Operating Conditions (1)(2) TemperatureRange T ≤T ≤T MIN A MAX −40°C≤T ≤+85°C A RangeofV 4.5V to6.0V CC DC DC (1) AbsoluteMaximumRatingsindicatelimitsbeyondwhichdamagetothedevicemayoccur.DCandACelectricalspecificationsdonot applywhenoperatingthedevicebeyonditsspecifiedoperatingconditions. (2) AllvoltagesaremeasuredwithrespecttoGND,unlessotherwisespecified. Electrical Characteristics – Converter Specifications ConverterSpecifications:V =5V =V ,V =GND,T ≤T ≤T andf =640kHzunlessotherwisestated. CC DC REF+ REF(−) MIN A MAX CLK Symbol Parameter Conditions Min Typ Max Units ADC0808 25°C ±½ LSB TotalUnadjustedError(1) T toT ±¾ LSB MIN MAX (1) Totalunadjustederrorincludesoffset,full-scale,linearity,andmultiplexererrors.SeeFigure5.NoneoftheseA/Dsrequiresazeroor full-scaleadjust.However,ifanallzerocodeisdesiredforananaloginputotherthan0.0V,orifanarrowfull-scalespanexists(for example:0.5Vto4.5Vfull-scale)thereferencevoltagescanbeadjustedtoachievethis.SeeFigure15. 2 SubmitDocumentationFeedback Copyright©1999–2013,TexasInstrumentsIncorporated ProductFolderLinks:ADC0808-N ADC0809-N

ADC0808-N, ADC0809-N www.ti.com SNAS535H–OCTOBER1999–REVISEDMARCH2013 Electrical Characteristics – Converter Specifications (continued) ConverterSpecifications:V =5V =V ,V =GND,T ≤T ≤T andf =640kHzunlessotherwisestated. CC DC REF+ REF(−) MIN A MAX CLK Symbol Parameter Conditions Min Typ Max Units ADC0809 0°Cto70°C ±1 LSB TotalUnadjustedError(1) T toT ±1¼ LSB MIN MAX InputResistance FromRef(+)toRef(−) 1.0 2.5 kΩ AnalogInputVoltageRange See (2)V(+)orV(−) GND−0.1 V +0.1 V CC DC V Voltage,TopofLadder MeasuredatRef(+) V V +0.1 V REF(+) CC CC Voltage,CenterofLadder (V /2)−0.1 V /2 (V /2)+0.1 V CC CC CC V Voltage,BottomofLadder MeasuredatRef(−) −0.1 0 V REF(−) I ComparatorInputCurrent f=640kHz,(3) −2 ±0.5 2 μA IN c (2) Twoon-chipdiodesaretiedtoeachanaloginputwhichwillforwardconductforanaloginputvoltagesonediodedropbelowgroundor onediodedropgreaterthantheV nsupply.Thespecallows100mVforwardbiasofeitherdiode.Thismeansthataslongasthe CC analogV doesnotexceedthesupplyvoltagebymorethan100mV,theoutputcodewillbecorrect.Toachieveanabsolute0V to IN DC 5V inputvoltagerangewillthereforerequireaminimumsupplyvoltageof4.900V overtemperaturevariations,initialtoleranceand DC DC loading. (3) Comparatorinputcurrentisabiascurrentintooroutofthechopperstabilizedcomparator.Thebiascurrentvariesdirectlywithclock frequencyandhaslittletemperaturedependence(Figure8).SeeANALOGCOMPARATORINPUTS Electrical Characteristics – Digital Levels and DC Specifications DigitalLevelsandDCSpecifications:ADC0808CCN,ADC0808CCV,ADC0809CCNandADC0809CCV,4.75≤V ≤5.25V, CC −40°C≤T ≤+85°Cunlessotherwisenoted A Symbol Parameter Conditions Min Typ Max Units ANALOGMULTIPLEXER V =5V,V =5V, CC IN I OFFChannelLeakageCurrent T =25°C 10 200 nA OFF(+) A T toT 1.0 μA MIN MAX V =5V,V =0, CC IN I OFFChannelLeakageCurrent T =25°C −200 −10 nA OFF(−) A T toT −1.0 μA MIN MAX CONTROLINPUTS V Logical“1”InputVoltage (V −1.5) V IN(1) CC V Logical“0”InputVoltage 1.5 V IN(0) Logical“1”InputCurrent(TheControl I V =15V 1.0 μA IN(1) Inputs) IN Logical“0”InputCurrent(TheControl I V =0 −1.0 μA IN(0) Inputs) IN I SupplyCurrent f =640kHz 0.3 3.0 mA CC CLK DATAOUTPUTSANDEOC(INTERRUPT) V =4.75V CC V Logical“1”OutputVoltage I =−360µA 2.4 V OUT(1) OUT I =−10µA 4.5 V OUT V Logical“0”OutputVoltage I =1.6mA 0.45 V OUT(0) O V Logical“0”OutputVoltageEOC I =1.2mA 0.45 V OUT(0) O V =5V 3 μA O I TRI-STATEOutputCurrent OUT V =0 −3 μA O Electrical Characteristics – Timing Specifications TimingSpecificationsV =V =5V,V =GND,t=t=20nsandT =25°Cunlessotherwisenoted. CC REF(+) REF(−) r f A Symbol Parameter Conditions MIn Typ Max Units t StartTimeDelayfromClock (Figure7) 300 900 ns STCLK Copyright©1999–2013,TexasInstrumentsIncorporated SubmitDocumentationFeedback 3 ProductFolderLinks:ADC0808-N ADC0809-N

ADC0808-N, ADC0809-N SNAS535H–OCTOBER1999–REVISEDMARCH2013 www.ti.com Electrical Characteristics – Timing Specifications (continued) TimingSpecificationsV =V =5V,V =GND,t=t=20nsandT =25°Cunlessotherwisenoted. CC REF(+) REF(−) r f A Symbol Parameter Conditions MIn Typ Max Units t MinimumStartPulseWidth (Figure7) 100 200 ns WS t MinimumALEPulseWidth (Figure7) 100 200 ns WALE t MinimumAddressSet-UpTime (Figure7) 25 50 ns s t MinimumAddressHoldTime (Figure7) 25 50 ns H t AnalogMUXDelayTimeFromALE R =0Ω(Figure7) 1 2.5 μs D S t ,t OEControltoQLogicState C =50pF,R =10k(Figure10) 125 250 ns H1 H0 L L t ,t OEControltoHi-Z C =10pF,R =10k(Figure10) 125 250 ns 1H 0H L L t ConversionTime f=640kHz,(Figure7)(1) 90 100 116 μs c c f ClockFrequency 10 640 1280 kHz c Clock t EOCDelayTime (Figure7) 0 8+2μS EOC Periods C InputCapacitance AtControlInputs 10 15 pF IN C TRI-STATEOutputCapacitance AtTRI-STATEOutputs 10 15 pF OUT (1) TheoutputsofthedataregisterareupdatedoneclockcyclebeforetherisingedgeofEOC. 4 SubmitDocumentationFeedback Copyright©1999–2013,TexasInstrumentsIncorporated ProductFolderLinks:ADC0808-N ADC0809-N

ADC0808-N, ADC0809-N www.ti.com SNAS535H–OCTOBER1999–REVISEDMARCH2013 Functional Description MULTIPLEXER The device contains an 8-channel single-ended analog signal multiplexer. A particular input channel is selected by using the address decoder. Table 1 shows the input states for the address lines to select any channel. The addressislatchedintothedecoderonthelow-to-hightransitionoftheaddresslatchenablesignal. Table1.AnalogChannelSelection SELECTEDANALOG ADDRESSLINE CHANNEL C B A IN0 L L L IN1 L L H IN2 L H L IN3 L H H IN4 H L L IN5 H L H IN6 H H L IN7 H H H CONVERTER CHARACTERISTICS TheConverter The heart of this single chip data acquisition system is its 8-bit analog-to-digital converter. The converter is designed to give fast, accurate, and repeatable conversions over a wide range of temperatures. The converter is partitioned into 3 major sections: the 256R ladder network, the successive approximation register, and the comparator.Theconverter'sdigitaloutputsarepositivetrue. The 256R ladder network approach (Figure 3) was chosen over the conventional R/2R ladder because of its inherent monotonicity, which ensures no missing digital codes. Monotonicity is particularly important in closed loop feedback control systems. A non-monotonic relationship can cause oscillations that will be catastrophic for thesystem.Additionally,the256Rnetworkdoesnotcauseloadvariationsonthereferencevoltage. The bottom resistor and the top resistor of the ladder network in Figure 3 are not the same value as the remainder of the network. The difference in these resistors causes the output characteristic to be symmetrical with the zero and full-scale points of the transfer curve. The first output transition occurs when the analog signal hasreached+½ LSBandsucceedingoutputtransitionsoccurevery1LSBlateruptofull-scale. The successive approximation register (SAR) performs 8 iterations to approximate the input voltage. For any SAR type converter, n-iterations are required for an n-bit converter. Figure 4 shows a typical example of a 3-bit converter. In the ADC0808, ADC0809, the approximation technique is extended to 8 bits using the 256R network. TheA/Dconverter'ssuccessiveapproximationregister(SAR)isresetonthepositiveedgeofthestartconversion start pulse. The conversion is begun on the falling edge of the start conversion pulse. A conversion in process will be interrupted by receipt of a new start conversion pulse. Continuous conversion may be accomplished by tyingtheend-of-conversion(EOC)outputtotheSCinput.Ifusedinthismode,anexternalstartconversionpulse should be applied after power up. End-of-conversion will go low between 0 and 8 clock pulses after the rising edgeofstartconversion. The most important section of the A/D converter is the comparator. It is this section which is responsible for the ultimate accuracy of the entire converter. It is also the comparator drift which has the greatest influence on the repeatability of the device. A chopper-stabilized comparator provides the most effective method of satisfying all theconverterrequirements. Thechopper-stabilizedcomparatorconvertstheDCinputsignalintoanACsignal.Thissignalisthenfedthrough a high gain AC amplifier and has the DC level restored. This technique limits the drift component of the amplifier since the drift is a DC component which is not passed by the AC amplifier. This makes the entire A/D converter extremelyinsensitivetotemperature,longtermdriftandinputoffseterrors. Copyright©1999–2013,TexasInstrumentsIncorporated SubmitDocumentationFeedback 5 ProductFolderLinks:ADC0808-N ADC0809-N

ADC0808-N, ADC0809-N SNAS535H–OCTOBER1999–REVISEDMARCH2013 www.ti.com Figure6showsatypicalerrorcurvefortheADC0808. Figure3. ResistorLadderandSwitchTree Figure4.3-BitA/DTransferCurve Figure5.3-BitA/DAbsoluteAccuracyCurve Figure6. TypicalErrorCurve 6 SubmitDocumentationFeedback Copyright©1999–2013,TexasInstrumentsIncorporated ProductFolderLinks:ADC0808-N ADC0809-N

ADC0808-N, ADC0809-N www.ti.com SNAS535H–OCTOBER1999–REVISEDMARCH2013 Timing Diagram Figure7. Copyright©1999–2013,TexasInstrumentsIncorporated SubmitDocumentationFeedback 7 ProductFolderLinks:ADC0808-N ADC0809-N

ADC0808-N, ADC0809-N SNAS535H–OCTOBER1999–REVISEDMARCH2013 www.ti.com Typical Performance Characteristics ComparatorI IN vs V IN (V =V =5V) CC REF Figure8. MultiplexerR ON vs V IN (V =V =5V) CC REF Figure9. 8 SubmitDocumentationFeedback Copyright©1999–2013,TexasInstrumentsIncorporated ProductFolderLinks:ADC0808-N ADC0809-N

ADC0808-N, ADC0809-N www.ti.com SNAS535H–OCTOBER1999–REVISEDMARCH2013 TRI-STATE Test Circuits and Timing Diagrams t ,t t ,t 1H H1 0H H0 t ,C =10pF t ,C =10pF 1H L 0H L t ,C =50pF t ,C =50pF H1 L H0 L tr tr 90% 90% 50% 50% 10% 10% tH1 tH0 50% 50% Figure10. TRI-STATETestCircuitsandTimingDiagrams Copyright©1999–2013,TexasInstrumentsIncorporated SubmitDocumentationFeedback 9 ProductFolderLinks:ADC0808-N ADC0809-N

ADC0808-N, ADC0809-N SNAS535H–OCTOBER1999–REVISEDMARCH2013 www.ti.com APPLICATIONS INFORMATION OPERATION RATIOMETRICCONVERSION The ADC0808, ADC0809 is designed as a complete Data Acquisition System (DAS) for ratiometric conversion systems. In ratiometric systems, the physical variable being measured is expressed as a percentage of full-scale which is not necessarily related to an absolute standard. The voltage input to the ADC0808 is expressed by the equation • V =InputvoltageintotheADC0808 IN • V =Full-scalevoltage fs • V =Zerovoltage Z • D =Datapointbeingmeasured X • D =Maximumdatalimit MAX • D =Minimumdatalimit (1) MIN A good example of a ratiometric transducer is a potentiometer used as a position sensor. The position of the wiper is directly proportional to the output voltage which is a ratio of the full-scale voltage across it. Since the data is represented as a proportion of full-scale, reference requirements are greatly reduced, eliminating a large source of error and cost for many applications. A major advantage of the ADC0808, ADC0809 is that the input voltage range is equal to the supply range so the transducers can be connected directly across the supply and theiroutputsconnecteddirectlyintothemultiplexerinputs,(Figure11). Ratiometric transducers such as potentiometers, strain gauges, thermistor bridges, pressure transducers, etc., are suitable for measuring proportional relationships; however, many types of measurements must be referred to an absolute standard such as voltage or current. This means a system reference must be used which relates the full-scale voltage to the standard volt. For example, if V =V =5.12V, then the full-scale range is divided into CC REF 256standardsteps.Thesmalleststandardstepis1LSBwhichisthen20mV. RESISTORLADDERLIMITATIONS The voltages from the resistor ladder are compared to the selected into 8 times in a conversion. These voltages are coupled to the comparator via an analog switch tree which is referenced to the supply. The voltages at the top,centerandbottomoftheladdermustbecontrolledtomaintainproperoperation. The top of the ladder, Ref(+), should not be more positive than the supply, and the bottom of the ladder, Ref(−), should not be more negative than ground. The center of the ladder voltage must also be near the center of the supply because the analog switch tree changes from N-channel switches to P-channel switches. These limitationsareautomaticallysatisfiedinratiometricsystemsandcanbeeasilymetingroundreferencedsystems. Figure 12 shows a ground referenced system with a separate supply and reference. In this system, the supply must be trimmed to match the reference voltage. For instance, if a 5.12V is used, the supply should be adjusted tothesamevoltagewithin0.1V. Figure11. RatiometricConversionSystem 10 SubmitDocumentationFeedback Copyright©1999–2013,TexasInstrumentsIncorporated ProductFolderLinks:ADC0808-N ADC0809-N

ADC0808-N, ADC0809-N www.ti.com SNAS535H–OCTOBER1999–REVISEDMARCH2013 The ADC0808 needs less than a milliamp of supply current so developing the supply from the reference is readily accomplished. In Figure 13 a ground referenced system is shown which generates the supply from the reference. The buffer shown can be an op amp of sufficient drive to supply the milliamp of supply current and the desired bus drive, or if a capacitive bus is driven by the outputs a large capacitor will supply the transient supply currentasseeninFigure14.TheLM301isovercompensatedtoinsurestabilitywhenloadedbythe10 μFoutput capacitor. The top and bottom ladder voltages cannot exceed V and ground, respectively, but they can be symmetrically CC less than V and greater than ground. The center of the ladder voltage should always be near the center of the CC supply. The sensitivity of the converter can be increased, (i.e., size of the LSB steps decreased) by using a symmetrical reference system. In Figure 15, a 2.5V reference is symmetrically centered about V /2 since the CC same current flows in identical resistors. This system with a 2.5V reference allows the LSB bit to be half the size ofa5Vreferencesystem. Figure12. GroundReferenced ConversionSystemUsingTrimmedSupply Figure13. GroundReferencedConversionSystemwith ReferenceGeneratingV Supply CC Copyright©1999–2013,TexasInstrumentsIncorporated SubmitDocumentationFeedback 11 ProductFolderLinks:ADC0808-N ADC0809-N

ADC0808-N, ADC0809-N SNAS535H–OCTOBER1999–REVISEDMARCH2013 www.ti.com Figure14. TypicalReferenceandSupplyCircuit R =R A B *Ratiometrictransducers Figure15. SymmetricallyCenteredReference CONVERTEREQUATIONS ThetransitionbetweenadjacentcodesNandN+1isgivenby: (2) ThecenterofanoutputcodeNisgivenby: (3) TheoutputcodeNforanarbitraryinputaretheintegerswithintherange: Where: • V =Voltageatcomparatorinput IN • V =VoltageatRef(+) REF(+) • V =VoltageatRef(−) REF(−) • V =Totalunadjustederrorvoltage(typically TUE • V ÷512) (4) REF(+) 12 SubmitDocumentationFeedback Copyright©1999–2013,TexasInstrumentsIncorporated ProductFolderLinks:ADC0808-N ADC0809-N

ADC0808-N, ADC0809-N www.ti.com SNAS535H–OCTOBER1999–REVISEDMARCH2013 ANALOGCOMPARATORINPUTS The dynamic comparator input current is caused by the periodic switching of on-chip stray capacitances. These are connected alternately to the output of the resistor ladder/switch tree network and to the comparator input as partoftheoperationofthechopperstabilizedcomparator. The average value of the comparator input current varies directly with clock frequency and with V as shown in IN Figure8. If no filter capacitors are used at the analog inputs and the signal source impedances are low, the comparator input current should not introduce converter errors, as the transient created by the capacitance discharge will die outbeforethecomparatoroutputisstrobed. If input filter capacitors are desired for noise reduction and signal conditioning they will tend to average out the dynamic comparator input current. It will then take on the characteristics of a DC bias current whose effect can bepredictedconventionally. Typical Application *Addresslatchesneededfor8085andSC/MPinterfacingtheADC0808toamicroprocessor Table2.MicroprocessorInterfaceTable PROCESSOR READ WRITE INTERRUPT(COMMENT) 8080 MEMR MEMW INTR(ThruRSTCircuit) 8085 RD WR INTR(ThruRSTCircuit) Z-80 RD WR INT(ThruRSTCircuit,Mode0) SC/MP NRDS NWDS SA(ThruSenseA) 6800 VMA•φ2•R/W VMA•φ•R/W IRQAorIRQB(ThruPIA) Copyright©1999–2013,TexasInstrumentsIncorporated SubmitDocumentationFeedback 13 ProductFolderLinks:ADC0808-N ADC0809-N

ADC0808-N, ADC0809-N SNAS535H–OCTOBER1999–REVISEDMARCH2013 www.ti.com REVISION HISTORY ChangesfromRevisionG(March2013)toRevisionH Page • ChangedlayoutofNationalDataSheettoTIformat.......................................................................................................... 13 14 SubmitDocumentationFeedback Copyright©1999–2013,TexasInstrumentsIncorporated ProductFolderLinks:ADC0808-N ADC0809-N

PACKAGE OPTION ADDENDUM www.ti.com 6-Feb-2020 PACKAGING INFORMATION Orderable Device Status Package Type Package Pins Package Eco Plan Lead/Ball Finish MSL Peak Temp Op Temp (°C) Device Marking Samples (1) Drawing Qty (2) (6) (3) (4/5) ADC0808CCV/NOPB ACTIVE PLCC FN 28 35 Green (RoHS SN Level-2A-245C-4 -40 to 85 ADC0808 & no Sb/Br) WEEK CCV ADC0808CCVX/NOPB ACTIVE PLCC FN 28 750 Green (RoHS SN Level-2A-245C-4 -40 to 85 ADC0808 & no Sb/Br) WEEK CCV ADC0809CCV/NOPB ACTIVE PLCC FN 28 35 Green (RoHS SN Level-2A-245C-4 -40 to 85 ADC0809 & no Sb/Br) WEEK CCV ADC0809CCVX/NOPB ACTIVE PLCC FN 28 750 Green (RoHS SN Level-2A-245C-4 -40 to 85 ADC0809 & no Sb/Br) WEEK CCV (1) The marketing status values are defined as follows: ACTIVE: Product device recommended for new designs. LIFEBUY: TI has announced that the device will be discontinued, and a lifetime-buy period is in effect. NRND: Not recommended for new designs. Device is in production to support existing customers, but TI does not recommend using this part in a new design. PREVIEW: Device has been announced but is not in production. Samples may or may not be available. OBSOLETE: TI has discontinued the production of the device. (2) RoHS: TI defines "RoHS" to mean semiconductor products that are compliant with the current EU RoHS requirements for all 10 RoHS substances, including the requirement that RoHS substance do not exceed 0.1% by weight in homogeneous materials. Where designed to be soldered at high temperatures, "RoHS" products are suitable for use in specified lead-free processes. TI may reference these types of products as "Pb-Free". RoHS Exempt: TI defines "RoHS Exempt" to mean products that contain lead but are compliant with EU RoHS pursuant to a specific EU RoHS exemption. Green: TI defines "Green" to mean the content of Chlorine (Cl) and Bromine (Br) based flame retardants meet JS709B low halogen requirements of <=1000ppm threshold. Antimony trioxide based flame retardants must also meet the <=1000ppm threshold requirement. (3) MSL, Peak Temp. - The Moisture Sensitivity Level rating according to the JEDEC industry standard classifications, and peak solder temperature. (4) There may be additional marking, which relates to the logo, the lot trace code information, or the environmental category on the device. (5) Multiple Device Markings will be inside parentheses. Only one Device Marking contained in parentheses and separated by a "~" will appear on a device. If a line is indented then it is a continuation of the previous line and the two combined represent the entire Device Marking for that device. (6) Lead/Ball Finish - Orderable Devices may have multiple material finish options. Finish options are separated by a vertical ruled line. Lead/Ball Finish values may wrap to two lines if the finish value exceeds the maximum column width. Important Information and Disclaimer:The information provided on this page represents TI's knowledge and belief as of the date that it is provided. TI bases its knowledge and belief on information provided by third parties, and makes no representation or warranty as to the accuracy of such information. Efforts are underway to better integrate information from third parties. TI has taken and Addendum-Page 1

PACKAGE OPTION ADDENDUM www.ti.com 6-Feb-2020 continues to take reasonable steps to provide representative and accurate information but may not have conducted destructive testing or chemical analysis on incoming materials and chemicals. TI and TI suppliers consider certain information to be proprietary, and thus CAS numbers and other limited information may not be available for release. In no event shall TI's liability arising out of such information exceed the total purchase price of the TI part(s) at issue in this document sold by TI to Customer on an annual basis. Addendum-Page 2

MECHANICAL DATA MPDI008 – OCTOBER 1994 N (R-PDIP-T**) PLASTIC DUAL-IN-LINE PACKAGE 24 PIN SHOWN A 24 13 0.560 (14,22) 0.520 (13,21) 1 12 0.060 (1,52) TYP 0.200 (5,08) MAX 0.610 (15,49) 0.020 (0,51) MIN 0.590 (14,99) Seating Plane 0.100 (2,54) 0.125 (3,18) MIN 0°–15° 0.021 (0,53) 0.010 (0,25) M 0.015 (0,38) 0.010 (0,25) NOM PINS ** 24 28 32 40 48 52 DIM 1.270 1.450 1.650 2.090 2.450 2.650 A MAX (32,26) (36,83) (41,91) (53,09) (62,23) (67,31) 1.230 1.410 1.610 2.040 2.390 2.590 A MIN (31,24) (35,81) (40,89) (51,82) (60,71) (65,79) 4040053/B 04/95 NOTES: A. All linear dimensions are in inches (millimeters). B. This drawing is subject to change without notice. C. Falls within JEDEC MS-011 D. Falls within JEDEC MS-015 (32 pin only) • POST OFFICE BOX 655303 DALLAS, TEXAS 75265

None

4215153/B 05/2017 PACKAGE OUTLINE FN0028A PLCC - 4.57 mm max height SCALE 1.000 PLASTIC CHIP CARRIER .180 MAX B .450-.456 [4.57] [11.43-11.58] .020 MIN NOTE 3 [0.51] A (.008) 4 1 28 [0.2] 5 25 PIN 1 ID .450-.456 (OPTIONAL) .382-.438 [11.43-11.58] [9.71-11.12] NOTE 3 11 19 12 18 .090-.120 TYP [2.29-3.04] 28X .026-.032 [0.66-0.81] C SEATING PLANE .004 [0.1] C 28X .013-.021 [0.33-0.53] 24X .050 .007 [0.18] C A B [1.27] .485-.495 [12.32-12.57] TYP 4215153/B 05/2017 NOTES: 1. All linear dimensions are in inches. Any dimensions in brackets are in millimeters. Any dimensions in parenthesis are for reference only. Controlling dimensions are in inches. Dimensioning and tolerancing per ASME Y14.5M. 2. This drawing is subject to change without notice. 3. Dimension does not include mold protrusion. Maximum allowable mold protrusion .01 in [0.25 mm] per side. 4. Reference JEDEC registration MS-018. www.ti.com

4215153/B 05/2017 EXAMPLE BOARD LAYOUT FN0028A PLCC - 4.57 mm max height PLASTIC CHIP CARRIER SYMM (R.002 ) TYP 28X (.094) 4 1 28 [0.05] [2.4] 28X (.026 ) [0.65] 5 25 SYMM (.429 ) 24X (.050 ) [10.9] [1.27] 11 19 12 18 (.429 ) [10.9] LAND PATTERN EXAMPLE EXPOSED METAL SHOWN SCALE:6X .002 MIN .002 MAX EXPOSED METAL EXPOSED METAL [0.05] [0.05] ALL AROUND ALL AROUND METAL SOLDER MASK SOLDER MASK METAL UNDER OPENING OPENING SOLDER MASK NON SOLDER MASK SOLDER MASK DEFINED DEFINED (PREFERRED) SOLDER MASK DETAILS 4215153/B 05/2017 NOTES: (continued) 5. Publication IPC-7351 may have alternate designs. 6. Solder mask tolerances between and around signal pads can vary based on board fabrication site. www.ti.com

EXAMPLE STENCIL DESIGN FFNN00002288AA PPLLCCCC -- 44..5577 mmmm mmaaxx hheeiigghhtt PPLLAASSTTIICC CCHHIIPP CCAARRRRIIEERR SYMM (R.002 ) TYP 28X (.094) 4 1 28 [0.05] [2.4] 28X (.026 ) [0.65] 5 25 SYMM (.429 ) 24X (.050 ) [10.9] [1.27] 11 19 12 18 (.429 ) [10.9] SOLDER PASTE EXAMPLE BASED ON 0.125 mm THICK STENCIL SCALE:6X 4215153/B 05/2017 NOTES: (continued) 7. Laser cutting apertures with trapezoidal walls and rounded corners may offer better paste release. IPC-7525 may have alternate design recommendations. 8. Board assembly site may have different recommendations for stencil design. www.ti.com

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