Product Sample & Technical Tools & Support & Folder Buy Documents Software Community SN54LVC138A,SN74LVC138A SCAS291W–MARCH1993–REVISEDOCTOBER2016 SN74LVC138A 3-Line to 8-Line Decoders Demultiplexers 1 Features 3 Description • OperateFrom1.65Vto3.6V The SN74LVC138A devices are designed for high- 1 performance memory-decoding or data-routing • InputsAcceptVoltagesto5.5V applications requiring very short propagation delay • Maxtpdof5.8nsat3.3V times. In high-performance memory systems, these • TypicalV (OutputGroundBounce) decoders minimize the effects of system decoding. OLP <0.8VatV =3.3V,T =25°C When employed with high-speed memories using a CC A fast enable circuit, delay times of these decoders and • TypicalV (OutputV Undershoot) OHV OH the enable time of the memory usually are less than >2VatV =3.3V,T =25°C CC A the typical access time of the memory. This means • Latch-UpPerformanceExceeds250mAPer that the effective system delay introduced by the JESD17 decodersisnegligible. 2 Applications DeviceInformation(1) PARTNUMBER PACKAGE BODYSIZE(NOM) • LEDDisplays LCCC(20) 8.89mm×8.89mm • Servers CDIP(16) 19.56mm×6.92mm • WhiteGoods CFP(16) 10.30mm×6.73mm • PowerInfrastructure SOIC(16) 9.90mm×3.91mm • BuildingAutomation SSOP(16) 6.20mm×5.30mm SNx4LVC138A • FactoryAutomation TVSOP(16) 3.60mm×4.40mm BGAMICROSTAR 4.00mm×3.00mm JUNIOR(20) TSSOP(16) 5.00mm×4.40mm UQFN(16) 2.60mm×1.80mm (1) For all available packages, see the orderable addendum at theendofthedatasheet. LogicDiagram(PositiveLogic) 15 Y0 1 A 14 Y1 Select 2 Inputs B 13 Y2 3 12 C Y3 Data Outputs 11 Y4 10 Y5 6 G1 9 Y6 EInnpaubtlse G2A 4 7 Y7 5 G2B Pin numbers shown are for the D, DB, DGV, J, NS, PW, RGY, and W packages. Copyright©2016,TexasInstrumentsIncorporated 1 An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications, intellectualpropertymattersandotherimportantdisclaimers.PRODUCTIONDATA.

SN54LVC138A,SN74LVC138A SCAS291W–MARCH1993–REVISEDOCTOBER2016 www.ti.com Table of Contents 1 Features.................................................................. 1 8.2 FunctionalBlockDiagram.......................................10 2 Applications........................................................... 1 8.3 FeatureDescription.................................................10 3 Description............................................................. 1 8.4 DeviceFunctionalModes........................................11 4 RevisionHistory..................................................... 2 9 ApplicationandImplementation........................ 12 9.1 ApplicationInformation............................................12 5 PinConfigurationandFunctions......................... 3 9.2 TypicalApplication..................................................12 6 Specifications......................................................... 5 10 PowerSupplyRecommendations..................... 13 6.1 AbsoluteMaximumRatings......................................5 11 Layout................................................................... 13 6.2 ESDRatings..............................................................5 6.3 RecommendedOperatingConditions.......................6 11.1 LayoutGuidelines.................................................13 6.4 ThermalInformation..................................................6 11.2 LayoutExample....................................................13 6.5 ElectricalCharacteristics...........................................7 12 DeviceandDocumentationSupport................. 14 6.6 SwitchingCharacteristics—SN54LVC138A..............7 12.1 RelatedLinks........................................................14 6.7 SwitchingCharacteristics—SN74LVC138A..............7 12.2 ReceivingNotificationofDocumentationUpdates14 6.8 OperatingCharacteristics..........................................8 12.3 CommunityResources..........................................14 6.9 TypicalCharacteristics..............................................8 12.4 Trademarks...........................................................14 7 ParameterMeasurementInformation..................9 12.5 ElectrostaticDischargeCaution............................14 12.6 Glossary................................................................14 8 DetailedDescription............................................ 10 13 Mechanical,Packaging,andOrderable 8.1 Overview.................................................................10 Information........................................................... 14 4 Revision History NOTE:Pagenumbersforpreviousrevisionsmaydifferfrompagenumbersinthecurrentversion. ChangesfromRevisionV(November2013)toRevisionW Page • AddedESDRatingstable,FeatureDescriptionsection,DeviceFunctionalModes,ApplicationandImplementation section,PowerSupplyRecommendationssection,Layoutsection,DeviceandDocumentationSupportsection,and Mechanical,Packaging,andOrderableInformationsection ................................................................................................. 1 • DeletedOrderingInformationtable;seePackagingOrderingAddendumattheendofthedatasheet................................ 1 • ChangedR valuesfrom:73to86.8(D),82to100.1(DB),120to122.1(DGV),78to84(ZQN),108to108.9 θJA (PW)....................................................................................................................................................................................... 6 • DeletedR valuesforNSandRGYpackages..................................................................................................................... 6 θJA ChangesfromRevisionU(OCTOBER2012)toRevisionV Page • UpdateddocumenttonewTIdatasheetformat-nospecificationchanges......................................................................... 1 • RemovedOrderingInformationtable..................................................................................................................................... 1 • AddedESDwarning............................................................................................................................................................... 1 2 SubmitDocumentationFeedback Copyright©1993–2016,TexasInstrumentsIncorporated ProductFolderLinks:SN54LVC138A SN74LVC138A

SN54LVC138A,SN74LVC138A www.ti.com SCAS291W–MARCH1993–REVISEDOCTOBER2016 5 Pin Configuration and Functions SN54LVC138A...J OR W PACKAGE SN74LVC138A...D, DB, DGV, NS, SN54LVC138A...FK PACKAGE OR PW PACKAGE (TOPVIEW) (TOPVIEW) C C C0 BAN V Y A 1 16 VCC 3 2 1 20 19 B 2 15 Y0 C 4 18 Y1 C 3 14 Y1 G2A 5 17 Y2 G2A 4 13 Y2 NC 6 16 NC G2B 5 12 Y3 G2B 7 15 Y3 G1 6 11 Y4 G1 8 14 Y4 Y7 7 10 Y5 9 10 11 12 13 GND 8 9 Y6 7D C 6 5 YN N Y Y G NC - No internal connection SN74LVC138A...RGY PACKAGE (TOPVIEW) C SN54LVC138A...RSVPACKAGE A VC (TOPVIEW) 1 16 3 4 5 6 Y Y Y Y B 2 15 Y0 12 11 10 9 C 3 14 Y1 Y2 13 8 GND G2A 4 13 Y2 Y1 14 7 Y7 G2B 5 12 Y3 Y0 15 6 G1 G1 6 11 Y4 Y7 7 10 Y5 VCC 16 5 G2B 1 2 3 4 8 9 A B C A ND Y6 2G G GQNORZQNPACKAGE (TOPVIEW) 1 2 3 4 A B C D E Table1.PinAssignmentsforZQN(BGA) 1 2 3 4 A B A V Y0 CC B C NC(1) NC(1) Y1 C G2B G2A Y3 Y2 D G1 NC(1) NC(1) Y4 E GND Y7 Y6 Y5 (1) NC-Nointernalconnection Copyright©1993–2016,TexasInstrumentsIncorporated SubmitDocumentationFeedback 3 ProductFolderLinks:SN54LVC138A SN74LVC138A

SN54LVC138A,SN74LVC138A SCAS291W–MARCH1993–REVISEDOCTOBER2016 www.ti.com PinFunctions PIN SOIC,SSOP, TVSOP,SO, BGA DESCRIPTION NAME LCCC MICROSTAR I/O TSSOP, JUNIOR VQFN,UQFN A 1 2 A2 I SelectinputA(leastsignificantbit) B 2 3 A1 I SelectinputB C 3 4 B1 I SelectinputC(mostsignificantbit) G2A 4 5 C2 I ActivelowenableA G2B 5 7 C1 I ActivelowenableB G1 6 8 D1 I Activehighenable GND 8 10 E1 — Ground NC — 1,11,16 B2,B3,D2,D3 — Nointernalconnection V 16 20 A3 — Supplyvoltage CC Y0 15 19 A4 O Output0(leastsignificantbit) Y1 14 18 B4 O Output1 Y2 13 17 C4 O Output2 Y3 12 15 C3 O Output3 Y4 11 14 D4 O Output4 Y5 10 13 E4 O Output5 Y6 9 12 E3 O Output6 Y7 7 9 E2 O Output7(mostsignificantbit) 4 SubmitDocumentationFeedback Copyright©1993–2016,TexasInstrumentsIncorporated ProductFolderLinks:SN54LVC138A SN74LVC138A

SN54LVC138A,SN74LVC138A www.ti.com SCAS291W–MARCH1993–REVISEDOCTOBER2016 6 Specifications 6.1 Absolute Maximum Ratings overoperatingfree-airtemperaturerange(unlessotherwisenoted)(1) MIN MAX UNIT V Supplyvoltage –0.5 6.5 V CC V Inputvoltage(2) –0.5 6.5 V I V Outputvoltage(2)(3) –0.5 V +0.5 V O CC I Inputclampcurrent V <0 –50 mA IK I I Outputclampcurrent V <0 –50 mA OK O I Continuousoutputcurrent ±50 mA O ContinuouscurrentthroughV orGND ±100 mA CC T Storagetemperature –65 150 °C stg T Junctiontemperature 150 °C J (1) StressesbeyondthoselistedunderAbsoluteMaximumRatingsmaycausepermanentdamagetothedevice.Thesearestressratings only,whichdonotimplyfunctionaloperationofthedeviceattheseoranyotherconditionsbeyondthoseindicatedunderRecommended OperatingConditions.Exposuretoabsolute-maximum-ratedconditionsforextendedperiodsmayaffectdevicereliability. (2) Theinputandoutputnegative-voltageratingsmaybeexceedediftheinputandoutputcurrentratingsareobserved. (3) ThevalueofV isprovidedintherecommendedoperatingconditionstable. CC 6.2 ESD Ratings VALUE UNIT Human-bodymodel(HBM),perANSI/ESDA/JEDECJS-001(1) 2000 Charged-devicemodel(CDM),perJEDECspecificationJESD22- V(ESD) Electrostaticdischarge C101(2) 1000 V Machinemodel(MM) 200 (1) JEDECdocumentJEP155statesthat500-VHBMallowssafemanufacturingwithastandardESDcontrolprocess. (2) JEDECdocumentJEP157statesthat250-VCDMallowssafemanufacturingwithastandardESDcontrolprocess. Copyright©1993–2016,TexasInstrumentsIncorporated SubmitDocumentationFeedback 5 ProductFolderLinks:SN54LVC138A SN74LVC138A

SN54LVC138A,SN74LVC138A SCAS291W–MARCH1993–REVISEDOCTOBER2016 www.ti.com 6.3 Recommended Operating Conditions MIN MAX UNIT SN54LVC138A(1) 2 3.6 Operating V Supplyvoltage SN74LVC138A(1) 1.65 3.6 V CC Dataretentiononly 1.5 V =1.65Vto1.95V SN74LVC138A(1) 0.65× CC V CC VIH High-levelinputvoltage V =2.3Vto2.7V SN74LVC138A(1) 1.7 V CC V =2.7Vto3.6V 2 CC V =1.65Vto1.95V SN74LVC138A(1) 0.35× CC V CC VIL Low-levelinputvoltage V =2.3Vto2.7V SN74LVC138A(1) 0.7 V CC V =2.7Vto3.6V 0.8 CC V Inputvoltage 0 5.5 V I V Outputvoltage 0 V V O CC V =1.65V SN74LVC138A(1) –4 CC V =2.3V SN74LVC138A(1) –8 CC I High-leveloutputcurrent mA OH V =2.7V –12 CC V =3V –24 CC V =1.65V SN74LVC138A(1) 4 CC V =2.3V SN74LVC138A(1) 8 CC I Low-leveloutputcurrent mA OL V =2.7V 12 CC V =3V 24 CC Δt/Δv Inputtransitionriseorfallrate 10 ns/V Operatingfree-air SN54LVC138A(1) –55 125 T °C A temperature SN74LVC138A(1) –40 85 (1) AllunusedinputsofthedevicemustbeheldatV orGNDtoensureproperdeviceoperation.SeetheTIapplicationreport, CC ImplicationsofSloworFloatingCMOSInputs. 6.4 Thermal Information SNx4LVC138A ZQN FK J W D DB DGV (BGA PW RSV THERMALMETRIC(1) (LCCC) (CDIP) (CFP) (SOIC) (SSOP) (TVSOP) MICROSTAR (TSSOP) (UQFN) UNIT JUNIOR) 20 16 16 16 16 16 20 16 16 PINS PINS PINS PINS PINS PINS PINS PINS PINS Junction-to-ambientthermal RθJA resistance 79.2 85.8 138.0 86.8 100.1 122.1 84 108.9 168.9 °C/W Junction-to-case(top)thermal RθJC(top) resistance 56.5 49.3 74.6 47.9 50.6 47.4 56.9 42.5 78.2 °C/W Junction-to-boardthermal RθJB resistance 55.2 64.9 127.7 43.8 50.7 53.8 46.1 54.5 96.4 °C/W Junction-to-topcharacterization ψJT parameter 49.8 37.4 50 15.7 14.3 4.6 3 4.4 4.2 °C/W Junction-to-board ψJB characterizationparameter 55.0 69.5 115.7 43.5 50.1 53.2 48.9 53.8 96.5 °C/W (1) Formoreinformationabouttraditionalandnewthermalmetrics,seetheSemiconductorandICPackageThermalMetricsapplication report. 6 SubmitDocumentationFeedback Copyright©1993–2016,TexasInstrumentsIncorporated ProductFolderLinks:SN54LVC138A SN74LVC138A

SN54LVC138A,SN74LVC138A www.ti.com SCAS291W–MARCH1993–REVISEDOCTOBER2016 6.5 Electrical Characteristics overrecommendedoperatingfree-airtemperaturerange(unlessotherwisenoted) PARAMETER TESTCONDITIONS VCC MIN TYP(1) MAX UNIT SN74LVC138A 1.65Vto3.6V VCC–0.2 IOH=–100µA SN54LVC138A 2.7Vto3.6V VCC–0.2 IOH=–4mA SN74LVC138A 1.65V 1.2 VOH High-leveloutputvoltage IOH=–8mA SN74LVC138A 2.3V 1.7 V 2.7V 2.2 IOH=–12mA 3V 2.4 IOH=–24mA 3V 2.2 SN74LVC138A 1.65Vto3.6V 0.2 IOL=100µA SN54LVC138A 2.7Vto3.6V 0.2 IOL=4mA SN74LVC138A 1.65V 0.45 VOL Low-leveloutputvoltage V IOL=8mA SN74LVC138A 2.3V 0.7 IOL=12mA 2.7V 0.4 IOL=24mA 3V 0.55 II Inputcurrent VI=5.5VorGND 3.6V ±5 µA ICC Supplycurrent VI=VCCorGND,IO=0 3.6V 10 µA ΔICC Changeinsupplycurrent OOntheerinipnuptuatstaVtCVCC–C0o.r6GVN,D 2.7Vto3.6V 500 µA Ci Inputcapacitance VI=VCCorGND 3.3V 5 pF (1) AlltypicalvaluesareatV =3.3V,T =25°C. CC A 6.6 Switching Characteristics—SN54LVC138A overrecommendedoperatingfree-airtemperaturerange(unlessotherwisenoted)(seeFigure2) FROM TO PARAMETER TESTCONDITIONS MIN MAX UNIT (INPUT) (OUTPUT) VCC=2.7V 7.9 AorBorC VCC=3.3V±0.3V 1 6.7 VCC=2.7V 7.4 tpd Propagation(delay)time G2AorG2B Y ns VCC=3.3V±0.3V 1 6.5 VCC=2.7V 6.4 G1 VCC=3.3V±0.3V 1 5.8 6.7 Switching Characteristics—SN74LVC138A overrecommendedoperatingfree-airtemperaturerange(unlessotherwisenoted)(seeFigure2) FROM TO PARAMETER TESTCONDITIONS MIN MAX UNIT (INPUT) (OUTPUT) VCC=1.8V±0.15V 1 22 VCC=2.5V±0.2V 1 9.9 AorBorC VCC=2.7V 1 7.9 VCC=3.3V±0.3V 1 6.7 VCC=1.8V±0.15V 1 21 VCC=2.5V±0.2V 1 9.4 tpd Propagation(delay)time G2AorG2B Y ns VCC=2.7V 1 7.4 VCC=3.3V±0.3V 1 6.5 VCC=1.8V±0.15V 1 20.3 VCC=2.5V±0.2V 1 8.4 G1 VCC=2.7V 1 6.4 VCC=3.3V±0.3V 1 5.8 tsk(o) Skew(time),output — — VCC=3.3V±0.3V 1 ns Copyright©1993–2016,TexasInstrumentsIncorporated SubmitDocumentationFeedback 7 ProductFolderLinks:SN54LVC138A SN74LVC138A

SN54LVC138A,SN74LVC138A SCAS291W–MARCH1993–REVISEDOCTOBER2016 www.ti.com 6.8 Operating Characteristics T =25°C A PARAMETER TESTCONDITIONS TYP UNIT V =1.8V 25 CC C Powerdissipationcapacitance f=10MHz V =2.5V 26 pF pd CC V =3.3V 27 CC 6.9 Typical Characteristics 24 s) Y (n 22 o 20 A t y - 18 a el 16 D on 14 ati g 12 a p Pro 10 m u 8 m xi 6 a M 4 1.8 2 2.2 2.4 2.6 2.8 3 3.2 3.4 Supply Voltage VCC (V) D002 Figure1.MaximumPropagationDelayvsSupplyVoltage 8 SubmitDocumentationFeedback Copyright©1993–2016,TexasInstrumentsIncorporated ProductFolderLinks:SN54LVC138A SN74LVC138A

SN54LVC138A,SN74LVC138A www.ti.com SCAS291W–MARCH1993–REVISEDOCTOBER2016 7 Parameter Measurement Information VLOAD From Output RL S1 Open TEST S1 Under Test GND tPLH/tPHL Open (see NoteCAL) RL tPLZ/tPZL VLOAD tPHZ/tPZH GND LOAD CIRCUIT INPUTS VCC VI tr/tf VM VLOAD CL RL VD 1.8 V±0.15 V VCC ≤2 ns VCC/2 2×VCC 30 pF 1 kW 0.15 V 2.5 V±0.2 V VCC ≤2 ns VCC/2 2×VCC 30 pF 500W 0.15 V 2.7 V 2.7 V ≤2.5 ns 1.5 V 6 V 50 pF 500W 0.3 V 3.3 V±0.3 V 2.7 V ≤2.5 ns 1.5 V 6 V 50 pF 500W 0.3 V VI Timing Input VM 0 V tw VI tsu th VI Input VM VM Data Input VM VM 0 V 0 V VOLTAGE WAVEFORMS VOLTAGE WAVEFORMS PULSE DURATION SETUPAND HOLD TIMES VI VI Output Input VM VM Control VM VM 0 V 0 V tPLH tPHL tPZL tPLZ Output VOH Waveform 1 VLOAD/2 Output VM VM VOL (Ss1ee a tN VoLteO ABD) VM VOL+ VD VOL tPHL tPLH tPZH tPHZ Output VM VM VOH WSa1v eaOftou GrtmpNu D2t VM VOH−VD VOH VOL (see Note B) ≈0 V VOLTAGE WAVEFORMS VOLTAGE WAVEFORMS PROPAGATION DELAYTIMES ENABLEAND DISABLE TIMES INVERTINGAND NONINVERTING OUTPUTS LOW-AND HIGH-LEVELENABLING NOTES: A. CLincludes probe and jig capacitance. B. Waveform 1 is for an output with internal conditions such that the output is low, except when disabled by the output control. Waveform2 is for an output with internal conditions such that the output is high, except when disabled by the output control. C. All input pulses are supplied by generators having the following characteristics: PRR≤10 MHz, ZO= 50W. D. The outputs are measured one at a time, with one transition per measurement. E. tPLZand tPHZare the same as tdis. F. tPZLand tPZHare the same as ten. G. tPLHand tPHLare the same as tpd. H. All parameters and waveforms are not applicable to all devices. Figure2. LoadCircuitandVoltageWaveforms Copyright©1993–2016,TexasInstrumentsIncorporated SubmitDocumentationFeedback 9 ProductFolderLinks:SN54LVC138A SN74LVC138A

SN54LVC138A,SN74LVC138A SCAS291W–MARCH1993–REVISEDOCTOBER2016 www.ti.com 8 Detailed Description 8.1 Overview The SNx4LVC138A devices are 3-to-8 decoders and demultiplexers. The three input pins, A, B, and C, select which output is active. The selected output is pulled LOW, while the remaining outputs are all HIGH. The conditions at the binary-select inputs at the three enable inputs select one of eight output lines. Two active-low and one active-high enable inputs reduce the requirement for external gates or inverters when expanding. A 24- line decoder can be implemented without external inverters, and a 32-line decoder requires only one inverter. An enableinputcanbeusedasadatainputfordemultiplexingapplications. The conditions at the binary-select inputs and the three enable inputs select one of eight output lines. Two active-low enable inputs and one active-high enable input reduce the need for external gates or inverters when expanding. A 24-line decoder can be implemented without external inverters, and a 32-line decoder requires only oneinverter.Anenableinputcanbeusedasadatainputfordemultiplexingapplications. 8.2 Functional Block Diagram 15 Y0 1 A 14 Y1 Select 2 Inputs B 13 Y2 3 12 C Y3 Data Outputs 11 Y4 10 Y5 6 G1 9 Y6 Enable 4 7 Inputs G2A Y7 5 G2B Pin numbers shown are for the D, DB, DGV, J, NS, PW, RGY, and W packages. Copyright©2016,TexasInstrumentsIncorporated 8.3 Feature Description 8.3.1 3-Lineto8-LineDecoder This device features three binary inputs to select a single active-low output. Three enable pins are also available to enable or disable the outputs. One active high enable and two active low enable pins are available, and any enable pin can be deactivated to force all outputs high. All three enable pins must be active for the output to be enabled. 10 SubmitDocumentationFeedback Copyright©1993–2016,TexasInstrumentsIncorporated ProductFolderLinks:SN54LVC138A SN74LVC138A

SN54LVC138A,SN74LVC138A www.ti.com SCAS291W–MARCH1993–REVISEDOCTOBER2016 Feature Description (continued) 8.3.2 1.65-Vto3.6-VOperationWithInputsupto5.5V The SN54LVC138A 3-line to 8-line decoder demultiplexer is designed for 2.7-V to 3.6-V V operation, and the CC SN74LVC138A3-lineto8-linedecoderdemultiplexerisdesignedfor1.65-Vto3.6-VV operation. CC Inputs can be driven from either 3.3-V or 5-V devices. This feature allows the use of these devices as translators inamixed3.3-Vand5-Vsystemenvironment. 8.4 Device Functional Modes Table2liststheoutputsoftheSNx4LVC138Adevicesbasedonthepossibleinputconfigurations. Table2. FunctionTable ENABLEINPUTS SELECTINPUTS OUTPUTS G1 G2A G2B C B A Y0 Y1 Y2 Y3 Y4 Y5 Y6 Y7 X H X X X X H H H H H H H H X X H X X X H H H H H H H H L X X X X X H H H H H H H H H L L L L L L H H H H H H H H L L L L H H L H H H H H H H L L L H L H H L H H H H H H L L L H H H H H L H H H H H L L H L L H H H H L H H H H L L H L H H H H H H L H H H L L H H L H H H H H H L H H L L H H H H H H H H H H L Copyright©1993–2016,TexasInstrumentsIncorporated SubmitDocumentationFeedback 11 ProductFolderLinks:SN54LVC138A SN74LVC138A

SN54LVC138A,SN74LVC138A SCAS291W–MARCH1993–REVISEDOCTOBER2016 www.ti.com 9 Application and Implementation NOTE Information in the following applications sections is not part of the TI component specification, and TI does not warrant its accuracy or completeness. TI’s customers are responsible for determining suitability of components for their purposes. Customers should validateandtesttheirdesignimplementationtoconfirmsystemfunctionality. 9.1 Application Information The SN74LVC138A is useful as a scanning column selector for an LED Matrix display as it can be used for the low-side drive of the LED string. The decoder functionality ensures that no more than one output is pulled to a low-levellogicvoltagesothatonlyasinglecolumnisenabledatanypointintime. 9.2 Typical Application SER 0V GPIO Inputs Q SRCLK A RCLK SN74HC595B 3.3V Q H 3.3V 0V HIGH Y0 Y7 A GPIO Inputs HIGH B SN74LVC138A HIGH C Copyright © 2016, Texas Instruments Incorporated Figure3. LEDMatrixDriverApplication 9.2.1 DesignRequirements These devices use CMOS technology and have balanced output drive. Take care to avoid bus contention because it can drive currents that would exceed maximum limits. The high drive also creates fast edges into light loads,soroutingandloadconditionsmustbeconsideredtopreventringing. 9.2.2 DetailedDesignProcedure 1. RecommendedInputConditions – Forswitchtimespecifications,seepropagationdelaytimesinSwitchingCharacteristics—SN74LVC138A. – For input voltage level specifications for control inputs, see V and V in Recommended Operating IH IL Conditions. 2. RecommendedOutputConditions – OutputsmustnotbepulledaboveV orbelowGND. CC 12 SubmitDocumentationFeedback Copyright©1993–2016,TexasInstrumentsIncorporated ProductFolderLinks:SN54LVC138A SN74LVC138A

SN54LVC138A,SN74LVC138A www.ti.com SCAS291W–MARCH1993–REVISEDOCTOBER2016 Typical Application (continued) 9.2.3 ApplicationCurve 2.4 2.2 VVIIHL MMAINX 2 1.8 V) el ( 1.6 v e 1.4 L c gi 1.2 o L 1 0.8 0.6 0.4 1.6 1.8 2 2.2 2.4 2.6 2.8 3 3.2 3.4 3.6 Supply Voltage VCC (V) D001 Figure4.InputHighandInputLowThresholdsvsSupplyVoltage 10 Power Supply Recommendations The power supply can be any voltage between the minimum and maximum supply voltage rating located in the RecommendedOperatingConditions. Each V terminal must have a good bypass capacitor to prevent power disturbance. A 0.1-µF bypass capacitor CC is recommended to be placed close to the V terminal. It is acceptable to parallel multiple bypass capacitors to CC reject different frequencies of noise; 0.1-µF and 1-µF capacitors are commonly used in parallel. The bypass capacitormustbeinstalledasclosetothepowerterminalaspossibleforbestresults. 11 Layout 11.1 Layout Guidelines Reflections and matching are closely related to loop antenna theory, but different enough to warrant their own discussion. When a PCB trace turns a corner at a 90° angle, a reflection can occur. This is primarily due to the change of width of the trace. At the apex of the turn, the trace width is increased to 1.414 times its width. This upsets the transmission line characteristics, especially the distributed capacitance and self–inductance of the trace (resulting in the reflection). It is a given that not all PCB traces can be straight, and so they have to turn corners. Figure 5 shows progressively better techniques of rounding corners. Only the last example maintains constanttracewidthandminimizesreflections. 11.2 Layout Example WORST BETTER BEST W 2 1W min. W Figure5. TraceExample Copyright©1993–2016,TexasInstrumentsIncorporated SubmitDocumentationFeedback 13 ProductFolderLinks:SN54LVC138A SN74LVC138A

SN54LVC138A,SN74LVC138A SCAS291W–MARCH1993–REVISEDOCTOBER2016 www.ti.com 12 Device and Documentation Support 12.1 Related Links The table below lists quick access links. Categories include technical documents, support and community resources,toolsandsoftware,andquickaccesstosampleorbuy. Table3.RelatedLinks TECHNICAL TOOLS& SUPPORT& PARTS PRODUCTFOLDER SAMPLE&BUY DOCUMENTS SOFTWARE COMMUNITY SN54LVC138A Clickhere Clickhere Clickhere Clickhere Clickhere SN74LVC138A Clickhere Clickhere Clickhere Clickhere Clickhere 12.2 Receiving Notification of Documentation Updates To receive notification of documentation updates, navigate to the device product folder on ti.com. In the upper right corner, click on Alert me to register and receive a weekly digest of any product information that has changed.Forchangedetails,reviewtherevisionhistoryincludedinanyreviseddocument. 12.3 Community Resources The following links connect to TI community resources. Linked contents are provided "AS IS" by the respective contributors. They do not constitute TI specifications and do not necessarily reflect TI's views; see TI's Terms of Use. TIE2E™OnlineCommunity TI'sEngineer-to-Engineer(E2E)Community.Createdtofostercollaboration amongengineers.Ate2e.ti.com,youcanaskquestions,shareknowledge,exploreideasandhelp solveproblemswithfellowengineers. DesignSupport TI'sDesignSupport QuicklyfindhelpfulE2Eforumsalongwithdesignsupporttoolsand contactinformationfortechnicalsupport. 12.4 Trademarks E2EisatrademarkofTexasInstruments. Allothertrademarksarethepropertyoftheirrespectiveowners. 12.5 Electrostatic Discharge Caution Thesedeviceshavelimitedbuilt-inESDprotection.Theleadsshouldbeshortedtogetherorthedeviceplacedinconductivefoam duringstorageorhandlingtopreventelectrostaticdamagetotheMOSgates. 12.6 Glossary SLYZ022—TIGlossary. Thisglossarylistsandexplainsterms,acronyms,anddefinitions. 13 Mechanical, Packaging, and Orderable Information The following pages include mechanical, packaging, and orderable information. This information is the most current data available for the designated devices. This data is subject to change without notice and revision of thisdocument.Forbrowser-basedversionsofthisdatasheet,refertotheleft-handnavigation. 14 SubmitDocumentationFeedback Copyright©1993–2016,TexasInstrumentsIncorporated ProductFolderLinks:SN54LVC138A SN74LVC138A

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) 5962-9752601Q2A ACTIVE LCCC FK 20 1 TBD POST-PLATE N / A for Pkg Type -55 to 125 5962- 9752601Q2A SNJ54LVC 138AFK 5962-9752601QEA ACTIVE CDIP J 16 1 TBD Call TI N / A for Pkg Type -55 to 125 5962-9752601QE A SNJ54LVC138AJ 5962-9752601QFA ACTIVE CFP W 16 1 TBD Call TI N / A for Pkg Type -55 to 125 5962-9752601QF A SNJ54LVC138AW 5962-9752601VFA ACTIVE CFP W 16 1 TBD Call TI N / A for Pkg Type -55 to 125 5962-9752601VF A SNV54LVC138AW SN74LVC138AD ACTIVE SOIC D 16 40 Green (RoHS NIPDAU Level-1-260C-UNLIM -40 to 85 LVC138A & no Sb/Br) SN74LVC138ADBR ACTIVE SSOP DB 16 2000 Green (RoHS NIPDAU Level-1-260C-UNLIM -40 to 85 LC138A & no Sb/Br) SN74LVC138ADE4 ACTIVE SOIC D 16 40 Green (RoHS NIPDAU Level-1-260C-UNLIM -40 to 85 LVC138A & no Sb/Br) SN74LVC138ADGVR ACTIVE TVSOP DGV 16 2000 Green (RoHS NIPDAU Level-1-260C-UNLIM -40 to 85 LC138A & no Sb/Br) SN74LVC138ADR ACTIVE SOIC D 16 2500 Green (RoHS NIPDAU Level-1-260C-UNLIM -40 to 85 LVC138A & no Sb/Br) SN74LVC138ADRE4 ACTIVE SOIC D 16 2500 Green (RoHS NIPDAU Level-1-260C-UNLIM -40 to 85 LVC138A & no Sb/Br) SN74LVC138ADRG4 ACTIVE SOIC D 16 2500 Green (RoHS NIPDAU Level-1-260C-UNLIM -40 to 85 LVC138A & no Sb/Br) SN74LVC138ADT ACTIVE SOIC D 16 250 Green (RoHS NIPDAU Level-1-260C-UNLIM -40 to 85 LVC138A & no Sb/Br) SN74LVC138ANSR ACTIVE SO NS 16 2000 Green (RoHS NIPDAU Level-1-260C-UNLIM -40 to 85 LVC138A & no Sb/Br) SN74LVC138ANSRG4 ACTIVE SO NS 16 2000 Green (RoHS NIPDAU Level-1-260C-UNLIM -40 to 85 LVC138A & no Sb/Br) SN74LVC138APW ACTIVE TSSOP PW 16 90 Green (RoHS NIPDAU Level-1-260C-UNLIM -40 to 85 LC138A & no Sb/Br) Addendum-Page 1

PACKAGE OPTION ADDENDUM www.ti.com 6-Feb-2020 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) SN74LVC138APWE4 ACTIVE TSSOP PW 16 90 Green (RoHS NIPDAU Level-1-260C-UNLIM -40 to 85 LC138A & no Sb/Br) SN74LVC138APWG4 ACTIVE TSSOP PW 16 90 Green (RoHS NIPDAU Level-1-260C-UNLIM -40 to 85 LC138A & no Sb/Br) SN74LVC138APWR ACTIVE TSSOP PW 16 2000 Green (RoHS NIPDAU | SN Level-1-260C-UNLIM -40 to 85 LC138A & no Sb/Br) SN74LVC138APWRE4 ACTIVE TSSOP PW 16 2000 Green (RoHS NIPDAU Level-1-260C-UNLIM -40 to 85 LC138A & no Sb/Br) SN74LVC138APWRG4 ACTIVE TSSOP PW 16 2000 Green (RoHS NIPDAU Level-1-260C-UNLIM -40 to 85 LC138A & no Sb/Br) SN74LVC138APWT ACTIVE TSSOP PW 16 250 Green (RoHS NIPDAU Level-1-260C-UNLIM -40 to 85 LC138A & no Sb/Br) SN74LVC138ARGYR ACTIVE VQFN RGY 16 3000 Green (RoHS NIPDAU Level-2-260C-1 YEAR -40 to 85 LC138A & no Sb/Br) SN74LVC138ARGYRG4 ACTIVE VQFN RGY 16 3000 Green (RoHS NIPDAU Level-2-260C-1 YEAR -40 to 85 LC138A & no Sb/Br) SN74LVC138ARSVR ACTIVE UQFN RSV 16 3000 Green (RoHS NIPDAU Level-1-260C-UNLIM -40 to 85 ZTP & no Sb/Br) SN74LVC138AZQNR LIFEBUY BGA ZQN 20 1000 Green (RoHS SNAGCU Level-1-260C-UNLIM -40 to 85 LC138A MICROSTAR & no Sb/Br) JUNIOR SNJ54LVC138AFK ACTIVE LCCC FK 20 1 TBD POST-PLATE N / A for Pkg Type -55 to 125 5962- 9752601Q2A SNJ54LVC 138AFK SNJ54LVC138AJ ACTIVE CDIP J 16 1 TBD Call TI N / A for Pkg Type -55 to 125 5962-9752601QE A SNJ54LVC138AJ SNJ54LVC138AW ACTIVE CFP W 16 1 TBD Call TI N / A for Pkg Type -55 to 125 5962-9752601QF A SNJ54LVC138AW (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. Addendum-Page 2

PACKAGE OPTION ADDENDUM www.ti.com 6-Feb-2020 (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 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. OTHER QUALIFIED VERSIONS OF SN54LVC138A, SN54LVC138A-SP, SN74LVC138A : •Catalog: SN74LVC138A, SN54LVC138A •Automotive: SN74LVC138A-Q1, SN74LVC138A-Q1 •Enhanced Product: SN74LVC138A-EP, SN74LVC138A-EP •Military: SN54LVC138A •Space: SN54LVC138A-SP NOTE: Qualified Version Definitions: Addendum-Page 3

PACKAGE OPTION ADDENDUM www.ti.com 6-Feb-2020 •Catalog - TI's standard catalog product •Automotive - Q100 devices qualified for high-reliability automotive applications targeting zero defects •Enhanced Product - Supports Defense, Aerospace and Medical Applications •Military - QML certified for Military and Defense Applications •Space - Radiation tolerant, ceramic packaging and qualified for use in Space-based application Addendum-Page 4

PACKAGE MATERIALS INFORMATION www.ti.com 21-May-2020 TAPE AND REEL INFORMATION *Alldimensionsarenominal Device Package Package Pins SPQ Reel Reel A0 B0 K0 P1 W Pin1 Type Drawing Diameter Width (mm) (mm) (mm) (mm) (mm) Quadrant (mm) W1(mm) SN74LVC138ADGVR TVSOP DGV 16 2000 330.0 12.4 6.8 4.0 1.6 8.0 12.0 Q1 SN74LVC138ADR SOIC D 16 2500 330.0 16.4 6.5 10.3 2.1 8.0 16.0 Q1 SN74LVC138ANSR SO NS 16 2000 330.0 16.4 8.2 10.5 2.5 12.0 16.0 Q1 SN74LVC138APWR TSSOP PW 16 2000 330.0 12.4 6.9 5.6 1.6 8.0 12.0 Q1 SN74LVC138APWR TSSOP PW 16 2000 330.0 12.4 6.9 5.6 1.6 8.0 12.0 Q1 SN74LVC138APWRG4 TSSOP PW 16 2000 330.0 12.4 6.9 5.6 1.6 8.0 12.0 Q1 SN74LVC138APWT TSSOP PW 16 250 330.0 12.4 6.9 5.6 1.6 8.0 12.0 Q1 SN74LVC138ARGYR VQFN RGY 16 3000 330.0 12.4 3.8 4.3 1.5 8.0 12.0 Q1 SN74LVC138AZQNR BGAMI ZQN 20 1000 330.0 12.4 3.3 4.3 1.6 8.0 12.0 Q1 CROSTA RJUNI OR PackMaterials-Page1

PACKAGE MATERIALS INFORMATION www.ti.com 21-May-2020 *Alldimensionsarenominal Device PackageType PackageDrawing Pins SPQ Length(mm) Width(mm) Height(mm) SN74LVC138ADGVR TVSOP DGV 16 2000 367.0 367.0 35.0 SN74LVC138ADR SOIC D 16 2500 333.2 345.9 28.6 SN74LVC138ANSR SO NS 16 2000 367.0 367.0 38.0 SN74LVC138APWR TSSOP PW 16 2000 364.0 364.0 27.0 SN74LVC138APWR TSSOP PW 16 2000 367.0 367.0 35.0 SN74LVC138APWRG4 TSSOP PW 16 2000 367.0 367.0 35.0 SN74LVC138APWT TSSOP PW 16 250 367.0 367.0 35.0 SN74LVC138ARGYR VQFN RGY 16 3000 367.0 367.0 35.0 SN74LVC138AZQNR BGAMICROSTAR ZQN 20 1000 350.0 350.0 43.0 JUNIOR PackMaterials-Page2

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PACKAGE OUTLINE RSV0016A UQFN - 0.55 mm max height SCALE 5.000 ULTRA THIN QUAD FLATPACK - NO LEAD 1.85 B A 1.75 PIN 1 INDEX AREA 2.65 2.55 0.55 C 0.45 SEATING PLANE 0.05 0.05 C 0.00 2X 1.2 SYMM (0.13) TYP 5 ℄ 8 0.45 15X 0.35 4 9 SYMM 2X 1.2 ℄ 12X 0.4 1 0.25 12 16X 0.15 0.07 C A B 0.05 16 13 0.55 0.45 PIN 1 ID (45 X 0.1) ° 4220314/C 02/2020 NOTES: 1. All linear dimensions are in millimeters. Any dimensions in parenthesis are for reference only. Dimensioning and tolerancing per ASME Y14.5M. 2. This drawing is subject to change without notice. www.ti.com

EXAMPLE BOARD LAYOUT RSV0016A UQFN - 0.55 mm max height ULTRA THIN QUAD FLATPACK - NO LEAD SYMM (0.7) ℄ 16 13 SEE SOLDER MASK DETAIL 16X (0.2) 1 12 SYMM 12X (0.4) (2.4) ℄ (R0.05) TYP 4 9 15X (0.6) 5 8 (1.6) LAND PATTERN EXAMPLE EXPOSED METAL SHOWN SCALE: 25X 0.05 MIN 0.05 MAX ALL AROUND ALL AROUND METAL UNDER METAL EDGE SOLDER MASK EXPOSED METAL SOLDER MASK EXPOSED SOLDER MASK OPENING METAL OPENING NON SOLDER MASK DEFINED SOLDER MASK DEFINED (PREFERRED) SOLDER MASK DETAILS 4220314/C 02/2020 NOTES: (continued) 3. For more information, see Texas Instruments literature number SLUA271 (www.ti.com/lit/slua271). www.ti.com

EXAMPLE STENCIL DESIGN RSV0016A UQFN - 0.55 mm max height ULTRA THIN QUAD FLATPACK - NO LEAD (0.7) 16 13 16X (0.2) 1 12 SYMM 12X (0.4) (2.4) ℄ (R0.05) TYP 4 9 15X (0.6) 5 8 SYMM ℄ (1.6) SOLDER PASTE EXAMPLE BASED ON 0.125 MM THICK STENCIL SCALE: 25X 4220314/C 02/2020 NOTES: (continued) 4. Laser cutting apertures with trapezoidal walls and rounded corners may offer better paste release. IPC-7525 may have alternate design recommendations. www.ti.com

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PACKAGE OUTLINE PW0016A TSSOP - 1.2 mm max height SCALE 2.500 SMALL OUTLINE PACKAGE SEATING PLANE C 6.6 TYP 6.2 A 0.1 C PIN 1 INDEX AREA 14X 0.65 16 1 2X 5.1 4.55 4.9 NOTE 3 8 9 0.30 B 4.5 16X 0.19 1.2 MAX 4.3 0.1 C A B NOTE 4 (0.15) TYP SEE DETAIL A 0.25 GAGE PLANE 0.15 0.05 0.75 0.50 0 -8 DETA 20AIL A TYPICAL 4220204/A 02/2017 NOTES: 1. All linear dimensions are in millimeters. Any dimensions in parenthesis are for reference only. Dimensioning and tolerancing per ASME Y14.5M. 2. This drawing is subject to change without notice. 3. This dimension does not include mold flash, protrusions, or gate burrs. Mold flash, protrusions, or gate burrs shall not exceed 0.15 mm per side. 4. This dimension does not include interlead flash. Interlead flash shall not exceed 0.25 mm per side. 5. Reference JEDEC registration MO-153. www.ti.com

EXAMPLE BOARD LAYOUT PW0016A TSSOP - 1.2 mm max height SMALL OUTLINE PACKAGE 16X (1.5) SYMM (R0.05) TYP 1 16X (0.45) 16 SYMM 14X (0.65) 8 9 (5.8) LAND PATTERN EXAMPLE EXPOSED METAL SHOWN SCALE: 10X SOLDER MASK METAL UNDER SOLDER MASK OPENING METAL SOLDER MASK OPENING EXPOSED METAL EXPOSED METAL 0.05 MAX 0.05 MIN ALL AROUND ALL AROUND NON-SOLDER MASK SOLDER MASK DEFINED DEFINED (PREFERRED) SOLDE15.000R MASK DETAILS 4220204/A 02/2017 NOTES: (continued) 6. Publication IPC-7351 may have alternate designs. 7. Solder mask tolerances between and around signal pads can vary based on board fabrication site. www.ti.com

EXAMPLE STENCIL DESIGN PW0016A TSSOP - 1.2 mm max height SMALL OUTLINE PACKAGE 16X (1.5) SYMM (R0.05) TYP 1 16X (0.45) 16 SYMM 14X (0.65) 8 9 (5.8) SOLDER PASTE EXAMPLE BASED ON 0.125 mm THICK STENCIL SCALE: 10X 4220204/A 02/2017 NOTES: (continued) 8. Laser cutting apertures with trapezoidal walls and rounded corners may offer better paste release. IPC-7525 may have alternate design recommendations. 9. Board assembly site may have different recommendations for stencil design. www.ti.com

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MECHANICAL DATA MPDS006C – FEBRUARY 1996 – REVISED AUGUST 2000 DGV (R-PDSO-G**) PLASTIC SMALL-OUTLINE 24 PINS SHOWN 0,23 0,40 0,07 M 0,13 24 13 0,16 NOM 4,50 6,60 4,30 6,20 Gage Plane 0,25 0°–(cid:1)8° 0,75 1 12 0,50 A Seating Plane 0,15 1,20 MAX 0,08 0,05 PINS ** 14 16 20 24 38 48 56 DIM A MAX 3,70 3,70 5,10 5,10 7,90 9,80 11,40 A MIN 3,50 3,50 4,90 4,90 7,70 9,60 11,20 4073251/E 08/00 NOTES: A. All linear dimensions are in millimeters. B. This drawing is subject to change without notice. C. Body dimensions do not include mold flash or protrusion, not to exceed 0,15 per side. D. Falls within JEDEC: 24/48 Pins – MO-153 14/16/20/56 Pins – MO-194 • POST OFFICE BOX 655303 DALLAS, TEXAS 75265

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MECHANICAL DATA MSSO002E – JANUARY 1995 – REVISED DECEMBER 2001 DB (R-PDSO-G**) PLASTIC SMALL-OUTLINE 28 PINS SHOWN 0,38 0,65 0,15 M 0,22 28 15 0,25 0,09 5,60 8,20 5,00 7,40 Gage Plane 1 14 0,25 A 0°–(cid:1)8° 0,95 0,55 Seating Plane 2,00 MAX 0,05 MIN 0,10 PINS ** 14 16 20 24 28 30 38 DIM A MAX 6,50 6,50 7,50 8,50 10,50 10,50 12,90 A MIN 5,90 5,90 6,90 7,90 9,90 9,90 12,30 4040065/E 12/01 NOTES: A. All linear dimensions are in millimeters. B. This drawing is subject to change without notice. C. Body dimensions do not include mold flash or protrusion not to exceed 0,15. D. Falls within JEDEC MO-150 • POST OFFICE BOX 655303 DALLAS, TEXAS 75265

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