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74LVC373A

Octal D-type transparent latch with 5 V tolerant inputs/outputs; 3-state

The 74LVC373A is an octal D-type transparent latch with 3-state outputs. The device features latch enable (LE) and output enable (OE) inputs. When LE is HIGH, data at the inputs enter the latches. In this condition the latches are transparent, a latch output will change each time its corresponding D-input changes. When LE is LOW the latches store the information that was present at the inputs a set-up time preceding the HIGH-to-LOW transition of LE. A HIGH on OE causes the outputs to assume a high-impedance OFF-state. Operation of the OE input does not affect the state of the latches. 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.

This device is fully specified for partial power down applications using IOFF. The IOFF circuitry disables the output, preventing the potentially damaging backflow current through the device when it is powered down.

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

  • High-impedance outputs when VCC = 0 V

  • IOFF circuitry provides partial Power-down mode operation

  • 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: ANSI/ESDA/JEDEC JS-001 class 2 exceeds 2000 V

    • CDM: ANSI/ESDA/JEDEC JS-002 class C3 exceeds 1000 V

  • Specified from -40 °C to +85 °C and -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
74LVC373ABQProduction1.2 - 3.6TTL± 243.0low-40~125789.049DHVQFN20
74LVC373ADProduction1.2 - 3.6TTL± 243.0low-40~1258527.161SO20
74LVC373APWProduction1.2 - 3.6TTL± 243.0low-40~1251014.645TSSOP20

Package

Type numberPackagePackage informationReflow-/Wave solderingPackingStatusMarkingOrderable part number, (Ordering code (12NC))
74LVC373ABQ
DHVQFN20
(SOT764-1) 		SOT764-1SOT764-1_115ActiveLVC373A74LVC373ABQ,115
( 9352 750 55115 )
74LVC373AD
SO20
(SOT163-1) 		SOT163-1WAVE_BG-BD-1
SOT163-1_118Active74LVC373AD74LVC373AD,118
( 9352 186 30118 )
74LVC373APW
TSSOP20
(SOT360-1) 		SOT360-1SSOP-TSSOP-VSO-WAVE
SOT360-1_118ActiveLVC373A74LVC373APW,118
( 9352 186 50118 )

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))
74LVC373AD
SO20
(SOT163-1) 		SOT163-1WAVE_BG-BD-1
SOT163-1_112Withdrawn / End-of-life74LVC373AD74LVC373AD,112
( 9352 186 30112 )
74LVC373APW
TSSOP20
(SOT360-1) 		SOT360-1SSOP-TSSOP-VSO-WAVE
SOT360-1_112Withdrawn / End-of-lifeLVC373A74LVC373APW,112
( 9352 186 50112 )

Discontinuation information

Type numberOrderable part number, (Ordering code (12NC))Last time buy dateLast time delivery dateReplacement productStatusComments
74LVC373AD9352186301122021-12-312022-06-3074LVC373AD
    74LVC373APW9352186501122021-12-312022-06-3074LVC373APW

      Environmental information

      Type numberOrderable part numberChemical contentRoHSRHF-indicatorLeadfree conversion date
      74LVC373ABQ74LVC373ABQ,11574LVC373ABQAlways Pb-free
      74LVC373AD74LVC373AD,11874LVC373ADweek 30, 2004
      74LVC373APW74LVC373APW,11874LVC373APWweek 53, 2004

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

      Type numberOrderable part numberChemical contentRoHSRHF-indicatorLeadfree conversion date
      74LVC373AD74LVC373AD,11274LVC373ADweek 30, 2004
      74LVC373APW74LVC373APW,11274LVC373APWweek 53, 2004
      Quality and reliability disclaimer

      Documentation (11)

      File nameTitleTypeDate
      74LVC373AOctal D-type transparent latch with 5 V tolerant inputs/outputs; 3-stateData sheet2023-08-28
      AN263Power considerations when using CMOS and BiCMOS logic devicesApplication note2023-02-07
      AN11009Pin FMEA for LVC familyApplication note2019-01-09
      lvc373alvc373a IBIS modelIBIS model2013-04-07
      Nexperia_Selection_guide_2023Nexperia Selection Guide 2023Selection guide2023-05-10
      lvclvc Spice modelSPICE model2013-05-06
      SOT764-1plastic, leadless dual in-line compatible thermal enhanced very thin quad flat package; 20 terminals; 0.5 mm pitch; 4.5 mm x 2.5 mm x 1 mm bodyPackage information2022-06-21
      SSOP-TSSOP-VSO-WAVEFootprint for wave solderingWave soldering2009-10-08
      SOT360-1plastic, thin shrink small outline package; 20 leads; 0.65 mm pitch; 6.5 mm x 4.4 mm x 1.1 mm bodyPackage information2022-06-21
      SOT163-1plastic, small outline package; 20 leads; 1.27 mm pitch; 12.8 mm x 7.5 mm x 2.65 mm bodyPackage information2022-06-20
      WAVE_BG-BD-1Wave soldering profileWave soldering2021-09-08

      Support

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      Models

      File nameTitleTypeDate
      lvc373alvc373a IBIS modelIBIS model2013-04-07
      lvclvc Spice modelSPICE model2013-05-06

      Ordering, pricing & availability

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