MM5452/MM5453 Liquid Crystal Display Drivers datasheet (Rev. C)
Document overview
- Manufacturer or author: Texas Instruments, Incorporated [SNLS367,C]
- PDF pages: 14
Technical content
MM5452,MM5453 www.ti.com SNLS367C –FEBRUARY 1995–REVISED MARCH 2013 MM5452/MM5453LiquidCrystalDisplayDrivers Check forSamples: MM5452 ,MM5453 1FEATURES DESCRIPTION The MM5452 isa monolithicintegratedcircuitutilizing 2• SerialData Input CMOS metalgate,low thresholdenhancement mode• No Load SignalRequired devices.Itisavailableina 40-pinPDIP package.The
- DATA ENABLE (MM5452) chipcan driveup to32 segments ofLCD and can be paralleledto increasethisnumber. The chip is• Wide Power Supply Operation capableof drivinga 4½ -digit7-segment displaywith• TTL Compatibility minimalinterfacebetween the displayand the data
- 32 or 33 Outputs source.
- Alphanumeric and Bar Graph Capability The MM5452 storesdisplaydatainlatchesafteritis
- Cascaded OperationCapability clockedin,and holdsthedatauntilnew displaydata isreceived.
APPLICATIONS
- COPS ™ or MicroprocessorDisplays
- IndustrialControlIndicator
- DigitalClock,Thermometer, Counter, Voltmeter
- InstrumentationReadouts
- Remote Displays Block Diagram Figure1. These deviceshave limitedbuilt-inESD protection.The leadsshouldbe shortedtogetherorthedeviceplacedinconductivefoam duringstorageorhandlingtopreventelectrostaticdamage totheMOS gates. Pleasebe aware thatan importantnoticeconcerningavailability,standardwarranty,and use incriticalapplicationsof Texas Instrumentssemiconductorproductsand disclaimerstheretoappearsattheend ofthisdatasheet. 2Alltrademarksarethepropertyoftheirrespectiveowners. PRODUCTION DATA informationiscurrentas ofpublicationdate. Copyright© 1995–2013,Texas InstrumentsIncorporatedProductsconform to specificationsper the terms of the Texas Instrumentsstandardwarranty.Productionprocessingdoes not necessarilyincludetestingofallparameters.
MM5452,MM5453 SNLS367C –FEBRUARY 1995–REVISED MARCH 2013 www.ti.com AbsoluteMaximum Ratings (1)(2) VoltageatAny Pin,ReferencedtoGnd -0.3Vto+10V StorageTemperature -65°C to+150°C Power Dissipationat25°C 350mW Power Dissipationat70°C 300mW JunctionTemperature +150°C Lead Temperature (Soldering,10s) 300°C (1) “AbsoluteMaximum Ratings”arethosevaluesbeyond whichthesafetyofthedevicecannotbe ensured.They arenotmeant toimply thatthedevicesshouldbe operatedattheselimits.The tableof“ElectricalCharacteristics”specifiesconditionsofdeviceoperation. (2) IfMilitary/Aerospacespecifieddevicesarerequired,pleasecontacttheTISalesOffice/Distributorsforavailabilityand specifications. Recommended OperatingConditions VDD 3V to10V OperatingTemperature −40°C to85°C ElectricalCharacteristics TA withinoperatingrange,VDD = 3.0Vto10V,VSS = 0V unlessotherwisespecified. Parameter Conditions Min Typ Max Units SupplyVoltage,VDD 3 10 V AverageSupplyCurrent,IDD AllOutputsOpen, Clock=Gnd, Data=Gnd,OSC=Gnd, BP_IN @ 32Hz VDD = 5V 10 µA VDD = 10V 40 µA InputLogical'0'Voltage,VIL VDD = 3V 0.4 V VDD = 5V 0.8 V VDD = 10V 0.8 V InputLogical'1'Voltage,VIH VDD = 3V 2.0 V VDD = 5V 2.0 V VDD = 10V 8.0 V Segment SinkCurrent,IOL VDD = 3V,VOUT = 0.3V -20 -40 µA Segment SourceCurrent,IOH VDD = 3V,VOUT = 2.7V 20 40 µA BackplaneOut SinkCurrent,IOL VDD = 3V,VOUT = 0.3V -320 -500 µA BackplaneOut SourceCurrent, VDD = 3V,VOUT = 2.7V 320 500 µAIOH Segment OutputOffsetVoltage Segment Load = 250pF (1) +/-50 mV BackplaneOutputOffsetVoltage BackplaneLoad = 8750pF (1) +/-50 mV BackplaneOut Frequency R OSC_IN = 50kΩ,C OSC_IN = 0.01µF 75 Hz ClockInputFrequency,fCLOCK (2) VDD = 3V (1)(3) 500 kHz VDD = 5V (1) 750 kHz VDD = 10V (1) 1.0 MHz ClockInputDutyCycle(2) 40 60 % Data InputSet-UpTime,tDS 300 ns Data InputHoldTime,tDH 300 ns DataEnableSet-upTime,tDES 100 ns (1) Thisparameterisensured(butnotproductiontested)overtheoperatingtemperaturerangeand theoperatingsupplyvoltagerange.Not tobe used inQ.A.testing. (2) Clockinputrisetime(tr)and falltime(tf)must notexceed 300ns (3) AC inputwaveform fortestpurposes:tr≤ 20ns,tf≤ 20ns,fCLOCK = 500kHz,DutyCycle= 50% ±10%
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MM5452,MM5453 www.ti.com SNLS367C –FEBRUARY 1995–REVISED MARCH 2013 Connection Diagram Figure2.Top View Figure3.Top View See Package Number NFJ0040A See Package Number NFJ0040A Figure4.Top View Figure5.Top View See Package Number FN0044A See Package Number FN0044A Copyright© 1995–2013,Texas InstrumentsIncorporated SubmitDocumentationFeedback 3 ProductFolderLinks:MM5452 MM5453
MM5452,MM5453 SNLS367C –FEBRUARY 1995–REVISED MARCH 2013 www.ti.com FUNCTIONAL DESCRIPTION The MM5452 isspecificallydesignedto operate4½ -digit7-segment displayswithminimalinterfacewiththe displayand thedatasource.Serialdatatransferfromthedatasourcetothedisplaydriverisaccomplishedwith2 signals,serialdataand clock.SincetheMM5452 does notcontaina charactergenerator,theformattingofthe segment informationmust be done priorto inputtingthe data to the MM5452. Using a formatof a leading“1” followedby the32 databitsallowsdatatransferwithoutan additionalloadsignal.The 32 databitsare latched afterthe36thclockiscomplete,thusprovidingnon-multiplexed,directdrivetothedisplay.Outputschange onlyif theserialdatabitsdifferfromtheprevioustime. A blockdiagramisshown inFigure1.For theMM5452 a DATA ENABLE isused insteadofthe33rd output.If theDATA ENABLE signalisnotrequired,the33rdoutputcan be broughtout.ThisistheMM5453 device. Figure7 shows theinputdataformat.A startbitoflogical“1” precedesthe32 bitsofdata.At the36thclocka LOAD signalisgeneratedsynchronouslywiththe highstateof the clock,which loadsthe 32 bitsof the shift registersintothe latches.At the low stateof the clocka RESET signalisgeneratedwhich clearsallthe shift registersforthenextsetofdata.The shiftregistersare staticmaster-slaveconfiguration.There isno clearfor themasterportionofthefirstshiftregister,thusallowingcontinuousoperation. Iftheclockisnotcontinuous,theremust be atleasta completesetof36 clocksotherwisetheshiftregisterswill notloadand clear. Bit1 isthefirstbitfollowingthestartbitand itwillappearon devicepin18 oftheMM5452N and MM5453N, and on devicepin20 oftheMM5452V and MM5453V. Figure6 shows thetimingrelationshipsbetween data,clockand DATA ENABLE. Figure6. Timing Diagram Figure7. InputData Format Figure8 shows a typicalapplication.Note how the inputdata maps to the outputpinsand the display.The MM5452 and MM5453 do nothave formatrestrictions,as alloutputsarecontrollable.The applicationassumes a specificdisplaypinout.Differentdisplay/driverconnectionpatternswill,of course,yielda differentinputdata format.
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MM5452,MM5453 www.ti.com SNLS367C –FEBRUARY 1995–REVISED MARCH 2013 ConsultLCD manufacturer’s datasheetforspecificpinouts. Figure8. Typical4½ -DigitDisplayApplication Copyright© 1995–2013,Texas InstrumentsIncorporated SubmitDocumentationFeedback 5 ProductFolderLinks:MM5452 MM5453
MM5452,MM5453 SNLS367C –FEBRUARY 1995–REVISED MARCH 2013 www.ti.com *The minimum recommended valueforR fortheoscillatorinputis9 kΩ.An RC timeconstantofapproximately4.91× 10−4 shouldproducea backplanefrequencybetween 30 Hz and 150 Hz. Figure9. ParallelBackplane Outputs Figure10. ExternalBackplane Clock Figure11 shows a fourwireremotedisplaythattakesadvantageofthedevice’s serialinputtomove many bitsof displayinformationon a few wires. USING AN EXTERNAL CLOCK The MM5452/MM5453 LCD Driverscan be used withan externallysuppliedclock,providedithas a dutycycleof 50%. Deviationsfroma 50% dutycycleresultinan offsetvoltageon theLCD. InFigure10,a flip-flopisused to assurea 50% dutycycle.The oscillatorinputisgroundedtopreventoscillationand reducecurrentconsumptions inthechips.The oscillatorisnotused. Usingan externalclockallowssynchronizingthedisplaydrivewithAC power,internalclocks,orDVM integration timetoreduceinterferencefromthedisplay. Figure12 isa generalblockdiagramthatshows how thedevice’s serialinputcan be used toadvantageinan analogdisplay.The analogvoltageinputiscompared witha staircasevoltagegeneratedby a counterand a digital-to-analogconverterorresistorarray.The resultofthiscomparisonisclockedintotheMM5452, MM5453. The nextclockpulseincrementsthestaircaseand clocksthenew datain.
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MM5452,MM5453 www.ti.com SNLS367C –FEBRUARY 1995–REVISED MARCH 2013 With a bufferamplifier,the same staircasewaveform can be used formany displays.The digital-to-analog converterneed not be linear;logarithmicor othernon-linearfunctionscan be displayedby usingweighted resistorsor specialDACs. Thissystem can be used forstatusindicators,spectrumanalyzers,audioleveland power meters,tuningindicators,and otherapplications. Figure11. Four Wire Remote Display Data ishighuntilstaircase> input Figure12. Analog Display Copyright© 1995–2013,Texas InstrumentsIncorporated SubmitDocumentationFeedback 7 ProductFolderLinks:MM5452 MM5453
MM5452,MM5453 SNLS367C –FEBRUARY 1995–REVISED MARCH 2013 www.ti.com
REVISION HISTORY
Changes from RevisionB (March 2013)toRevisionC Page
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www.ti.com 11-Nov-2025 PACKAGING INFORMATION Orderable part number Status (1) Material type (2) Package | Pins Package qty | Carrier RoHS (3) Lead finish/ Ball material (4) MSL rating/ Peak reflow (5) Op temp (°C) Part marking (6) MM5452V/NOPB Obsolete Production PLCC (FN) | 44 - - Call TI Call TI -40 to 85 MM5452V MM5452VX/NOPB Obsolete Production PLCC (FN) | 44 - - Call TI Call TI -40 to 85 MM5452V MM5453V/NOPB Obsolete Production PLCC (FN) | 44 - - Call TI Call TI -40 to 85 MM5453V MM5453VX/NOPB Obsolete Production PLCC (FN) | 44 - - Call TI Call TI -40 to 85 MM5453V (1) Status: For more details on status, see our product life cycle. (2) Material type: When designated, preproduction parts are prototypes/experimental devices, and are not yet approved or released for full production. Testing and final process, including without limitation quality assurance, reliability performance testing, and/or process qualification, may not yet be complete, and this item is subject to further changes or possible discontinuation. If available for ordering, purchases will be subject to an additional waiver at checkout, and are intended for early internal evaluation purposes only. These items are sold without warranties of any kind. (3) RoHS values: Yes, No, RoHS Exempt. See the TI RoHS Statement for additional information and value definition. (4) Lead finish/Ball material: Parts may have multiple material finish options. Finish options are separated by a vertical ruled line. Lead finish/Ball material values may wrap to two lines if the finish value exceeds the maximum column width. (5) MSL rating/Peak reflow: The moisture sensitivity level ratings and peak solder (reflow) temperatures. In the event that a part has multiple moisture sensitivity ratings, only the lowest level per JEDEC standards is shown. Refer to the shipping label for the actual reflow temperature that will be used to mount the part to the printed circuit board. (6) Part marking: There may be an additional marking, which relates to the logo, the lot trace code information, or the environmental category of the part. Multiple part markings will be inside parentheses. Only one part marking contained in parentheses and separated by a "~" will appear on a part. If a line is indented then it is a continuation of the previous line and the two combined represent the entire part marking for that device. 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 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 1
www.ti.com PACKAGE OUTLINE C 44X -.021 .013 -0.53 0.33 [ ] 44X -.032 .026 -0.81 0.66 [ ] TYP -.695 .685 -17.6517.40 [ ] 40X .050 [1.27] -.638 .582 -16.2014.79 [ ] .020 MIN [0.51] TYP-.120 .090 -3.04 2.29 [ ] .180 MAX [4.57] B NOTE 3 -.656 .650 -16.6616.51 [ ] A NOTE 3 -.656 .650 -16.6616.51 [ ] (.008) [0.2] 4215154/A 04/2017 4215154/A 04/2017 PLCC - 4.57 mm max heightFN0044A PLASTIC CHIP CARRIER 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. 4. Reference JEDEC registration MS-018. PIN 1 ID (OPTIONAL) 1 446 18 28 .004 [0.1] C .007 [0.18] C A B SEATING PLANE SCALE 0.800
www.ti.com EXAMPLE BOARD LAYOUT .002 MAX [0.05] ALL AROUND .002 MIN [0.05] ALL AROUND 44X (.093 ) [2.35] 44X (.030 ) [0.75] 40X (.050 ) [1.27] (.64 ) [16.2] (.64 ) [16.2] (R.002 ) TYP [0.05] 4215154/A 04/2017 4215154/A 04/2017 PLCC - 4.57 mm max heightFN0044A PLASTIC CHIP CARRIER 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. LAND PATTERN EXAMPLE EXPOSED METAL SHOWN SCALE:4X SYMM SYMM 1 446 18 28 METAL SOLDER MASK OPENING NON SOLDER MASK DEFINED (PREFERRED) SOLDER MASK DETAILS EXPOSED METAL SOLDER MASK OPENING METAL UNDER SOLDER MASK SOLDER MASK DEFINED EXPOSED METAL
www.ti.com EXAMPLE STENCIL DESIGN 44X (.030 ) [0.75] 44X (.093 ) [2.35] (.64 ) [16.2] (.64 ) [16.2] 40X (.050 ) [1.27] (R.002 ) TYP [0.05] PLCC - 4.57 mm max heightFN0044A PLASTIC CHIP CARRIER 4215154/A 04/2017 PLCC - 4.57 mm max heightFN0044A PLASTIC CHIP CARRIER 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. SOLDER PASTE EXAMPLE BASED ON 0.125 mm THICK STENCIL SCALE:4X SYMM SYMM 1 446 18 28
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