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74LVC138A

3-to-8 line decoder/demultiplexer; inverting

The 74LVC138A decodes three binary weighted address inputs (A0, A1 and A2) to eight mutually exclusive outputs (Y0 to Y7). The 74LVC138A features three enable inputs (E1, E2 and E3). Every output will be HIGH unless E1 and E2 are LOW and E3 is HIGH. This multiple enable function allows easy parallel expansion of the 74LVC138A to a 1-of-32 (5 to 32 lines) decoder with just four 74LVC138A ICs and one inverter. The 74LVC138A can be used as an eight output demultiplexer by using one of the active LOW enable inputs as the data input and the remaining enable inputs as strobes. Inputs can be driven from either 3.3 V or 5 V devices. This feature allows the use of these devices as translators in mixed 3.3 V and 5 V environments.

Schmitt-trigger action at all inputs makes the circuit tolerant of slower input rise and fall times.

Features and benefits

  • Overvoltage tolerant inputs to 5.5 V
  • Wide supply voltage range from 1.2 V to 3.6 V
  • CMOS low power consumption
  • Direct interface with TTL levels
  • Demultiplexing capability
  • Multiple input enable for easy expansion
  • Ideal for memory chip select decoding
  • Mutually exclusive outputs
  • Output drive capability 50 Ω transmission lines at 125 °C
  • Complies with JEDEC standard:
    • JESD8-7A (1.65 V to 1.95 V)
    • JESD8-5A (2.3 V to 2.7 V)
    • JESD8-C/JESD36 (2.7 V to 3.6 V)
  • ESD protection:
    • HBM JESD22-A114F exceeds 2000 V
    • MM JESD22-A115-B exceeds 200 V
    • CDM JESD22-C101E exceeds 1000 V
  • Specified from -40 °C to +85 °C and from -40 °C to +125 °C

Parametrics

Type numberProduct statusVCC (V)Logic switching levelsOutput drive capability (mA)tpd (ns)Power dissipation considerationsTamb (°C)Rth(j-a) (K/W)Ψth(j-top) (K/W)Rth(j-c) (K/W)Package name
74LVC138ABQProduction1.2 - 3.6CMOS/LVTTL± 242.7low-40~1259414.563DHVQFN16
74LVC138ADProduction1.2 - 3.6CMOS/LVTTL± 242.7low-40~1259310.152.8SO16
74LVC138APWProduction1.2 - 3.6CMOS/LVTTL± 242.7low-40~1251264.855.9TSSOP16

Package

Type numberPackagePackage informationReflow-/Wave solderingPackingStatusMarkingOrderable part number, (Ordering code (12NC))
74LVC138ABQ
DHVQFN16
(SOT763-1)
SOT763-1Reel 7” Q1/T1 or Q2/T3ActiveVC138A74LVC138ABQ,115
( 9352 733 34115 )
74LVC138AD
SO16
(SOT109-1)
SOT109-1SO-SOJ-REFLOW
SO-SOJ-WAVE
Reel 13" Q1/T1Active74LVC138AD74LVC138AD,118
( 9352 607 45118 )
74LVC138APW
TSSOP16
(SOT403-1)
SOT403-1SSOP-TSSOP-VSO-WAVE
Reel 13" Q1/T1ActiveLVC138A74LVC138APW,118
( 9352 607 47118 )

The variants in the table below are discontinued. See the table Discontinuation information for more information.

Type numberPackagePackage informationReflow-/Wave solderingPackingStatusMarkingOrderable part number, (Ordering code (12NC))
74LVC138AD
SO16
(SOT109-1)
SOT109-1SO-SOJ-REFLOW
SO-SOJ-WAVE
Bulk PackDiscontinued / End-of-life74LVC138AD74LVC138AD,112
( 9352 607 45112 )
74LVC138APW
TSSOP16
(SOT403-1)
SOT403-1SSOP-TSSOP-VSO-WAVE
Bulk PackDiscontinued / End-of-lifeLVC138A74LVC138APW,112
( 9352 607 47112 )

Discontinuation information

Type numberOrderable part number, (Ordering code (12NC))Last time buy dateLast time delivery dateReplacement productStatusComments
74LVC138AD9352607451122021-12-312022-06-3074LVC138AD
    74LVC138APW9352607471122021-12-312022-06-3074LVC138APW

      Quality, reliability & chemical content

      Type numberOrderable part numberChemical contentRoHS / RHFLeadfree conversion dateEFRIFRMTBF (hour)MSLMSL leadfree
      74LVC138ABQ74LVC138ABQ,11574LVC138ABQAlways Pb-free19.30.52E911
      74LVC138AD74LVC138AD,11874LVC138ADweek 12, 200519.30.52E911
      74LVC138APW74LVC138APW,11874LVC138APWweek 10, 200519.30.52E911

      The variants in the table below are discontinued. See the table Discontinuation information for more information.

      Type numberOrderable part numberChemical contentRoHS / RHFLeadfree conversion dateEFRIFRMTBF (hour)MSLMSL leadfree
      74LVC138AD74LVC138AD,11274LVC138ADweek 12, 200519.30.52E911
      74LVC138APW74LVC138APW,11274LVC138APWweek 10, 200519.30.52E911
      Quality and reliability disclaimer

      Documentation (13)

      File nameTitleTypeDate
      74LVC138A3-to-8 line decoder/demultiplexer; invertingData sheet2021-09-20
      AN11009Pin FMEA for LVC familyApplication note2019-01-09
      lvc138alvc138a IBIS modelIBIS model2013-04-07
      Nexperia_Selection_guide_2020Nexperia Selection Guide 2020Selection guide2020-01-31
      Nexperia_Selection_guide_2021Nexperia Selection Guide 2021Selection guide2021-01-08
      lvclvc Spice modelSPICE model2013-05-06
      SOT763-1plastic, leadless dual in-line compatible thermal enhanced very thin quad flat package; 16 terminals; 0.5 mm pitch; 3.5 mm x 2.5 mm x 1 mm bodyPackage information2020-04-21
      SO-SOJ-WAVEFootprint for wave solderingWave soldering2009-10-08
      SO-SOJ-REFLOWFootprint for reflow solderingReflow soldering2009-10-08
      SOT109-1plastic, small outline package; 16 leads; 1.27 mm pitch; 9.9 mm x 3.9 mm x 1.75 mm bodyPackage information2021-01-06
      WAVE_BG-BD-1Wave soldering profileWave soldering2021-09-08
      SSOP-TSSOP-VSO-WAVEFootprint for wave solderingWave soldering2009-10-08
      SOT403-1plastic, thin shrink small outline package; 16 leads; 5 mm x 4.4 mm x 1.1 mm bodyPackage information2020-04-21

      Support

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      Models

      File nameTitleTypeDate
      lvc138alvc138a IBIS modelIBIS model2013-04-07
      lvclvc Spice modelSPICE model2013-05-06

      Ordering, pricing & availability

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