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74LVC245A; 74LVCH245A

Octal bus transceiver; 3-state

The 74LVC245A; 74LVCH245A is an 8-bit transceiver with 3-state outputs. The device features an output enable (OE) and send/receive (DIR) for direction control. A HIGH on OE causes the outputs to assume a high-impedance OFF-state. 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

  • Wide supply voltage range from 1.2 V to 3.6 V
  • CMOS low-power consumption
  • Direct interface with TTL levels
  • Overvoltage tolerant inputs to 5.5 V
  • Bus hold on all data inputs (74LVCH245A only)
  • 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 JESD22-A114F exceeds 2000 V
    • MM JESD22-A115B exceeds 200 V
    • CDM JESD22-C101E exceeds 1000 V
  • Specified from -40 °C to +85 °C and -40 °C to +125 °C

Parametrics

Type numberProduct statusVCC(A) (V)VCC(B) (V)Logic switching levelsPower dissipation considerationsTamb (°C)Package name
74LVC245ABQProductionn.a.n.a.CMOS/LVTTLlow-40~125DHVQFN20
74LVC245ABZProductionn.a.n.a.CMOS/LVTTLlow-40~125DHXQFN
74LVC245ADProductionn.a.n.a.CMOS/LVTTLlow-40~125SO20
74LVC245APWProductionn.a.n.a.CMOS/LVTTLlow-40~125TSSOP20
74LVCH245ABQProductionn.a.n.a.CMOS/LVTTLlow-40~125DHVQFN20
74LVCH245ADProductionn.a.n.a.CMOS/LVTTLlow-40~125SO20
74LVCH245APWProductionn.a.n.a.CMOS/LVTTLlow-40~125TSSOP20

Package

Type numberPackagePackage informationReflow-/Wave solderingPackingStatusMarkingOrderable part number, (Ordering code (12NC))
74LVC245ABQ
DHVQFN20
(SOT764-1)
SOT764-1Reel 7” Q1/T1 or Q2/T3ActiveLVC245A LVC245A Standard Procedure Standard Procedure74LVC245ABQ,115
( 9352 735 95115 )
74LVC245ABZ
DHXQFN
(SOT8020-1)
SOT8020-1Reel 7” Q1/T1 or Q2/T3ActiveVC24574LVC245ABZX
( 9356 911 45115 )
74LVC245AD
SO20
(SOT163-1)
SOT163-1WAVE_BG-BD-1
Reel 13" Q1/T1Active74LVC245AD74LVC245AD,118
( 9352 115 10118 )
74LVC245APW
TSSOP20
(SOT360-1)
SOT360-1SSOP-TSSOP-VSO-WAVE
Reel 13" Q1/T1ActiveLVC245A LVC245A Standard Procedure Standard Procedure74LVC245APW,118
( 9352 115 40118 )
74LVCH245ABQ
DHVQFN20
(SOT764-1)
SOT764-1Reel 7” Q1/T1 or Q2/T3ActiveLVCH245A74LVCH245ABQ,115
( 9352 736 96115 )
74LVCH245AD
SO20
(SOT163-1)
SOT163-1WAVE_BG-BD-1
Reel 13" Q1/T1Active74LVCH245AD74LVCH245AD,118
( 9352 115 50118 )
74LVCH245APW
TSSOP20
(SOT360-1)
SOT360-1SSOP-TSSOP-VSO-WAVE
Reel 13" Q1/T1ActiveVCH245A74LVCH245APW,118
( 9352 115 70118 )

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))
74LVC245AD
SO20
(SOT163-1)
SOT163-1WAVE_BG-BD-1
Bulk PackWithdrawn / End-of-life74LVC245AD74LVC245AD,112
( 9352 115 10112 )
74LVC245APW
TSSOP20
(SOT360-1)
SOT360-1SSOP-TSSOP-VSO-WAVE
Bulk PackWithdrawn / End-of-lifeLVC245A LVC245A Standard Procedure Standard Procedure74LVC245APW,112
( 9352 115 40112 )
74LVCH245APW
TSSOP20
(SOT360-1)
SOT360-1SSOP-TSSOP-VSO-WAVE
Bulk PackWithdrawn / End-of-lifeVCH245A74LVCH245APW,112
( 9352 115 70112 )

Discontinuation information

Type numberOrderable part number, (Ordering code (12NC))Last time buy dateLast time delivery dateReplacement productStatusComments
74LVC245AD9352115101122021-12-312022-06-3074LVC245AD
    74LVC245APW9352115401122021-12-312022-06-3074LVC245APW
      74LVCH245AD9352115501122021-12-312022-06-3074LVCH245AD
        74LVCH245APW9352115701122021-12-312022-06-3074LVCH245APW

          Environmental information

          Type numberOrderable part numberChemical contentRoHSRHF-indicatorLeadfree conversion date
          74LVC245ABQ74LVC245ABQ,11574LVC245ABQAlways Pb-free
          74LVC245ABZ74LVC245ABZX74LVC245ABZ
          74LVC245AD74LVC245AD,11874LVC245ADweek 30, 2004
          74LVC245APW74LVC245APW,11874LVC245APWweek 7, 2005
          74LVCH245ABQ74LVCH245ABQ,11574LVCH245ABQAlways Pb-free
          74LVCH245AD74LVCH245AD,11874LVCH245ADweek 30, 2004
          74LVCH245APW74LVCH245APW,11874LVCH245APWweek 7, 2005

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

          Type numberOrderable part numberChemical contentRoHSRHF-indicatorLeadfree conversion date
          74LVC245AD74LVC245AD,11274LVC245ADweek 30, 2004
          74LVC245APW74LVC245APW,11274LVC245APWweek 7, 2005
          74LVCH245APW74LVCH245APW,11274LVCH245APWweek 7, 2005
          Quality and reliability disclaimer

          Documentation (12)

          File nameTitleTypeDate
          74LVC_LVCH245AOctal bus transceiver; 3-stateData sheet2021-09-16
          AN263Power considerations when using CMOS and BiCMOS logic devicesApplication note2022-11-16
          AN11009Pin FMEA for LVC familyApplication note2019-01-09
          lvc245alvc245a IBIS modelIBIS model2021-02-02
          lvch245alvch245a IBIS modelIBIS model2013-04-07
          lvclvc Spice modelSPICE model2013-05-06
          SOT8020-1plastic, leadless dual in-line compatible thermal enhanced extreme thin quad flat package;no leads; 20 terminals; 0.4 mm pitch; body 2 mm x 3.2 mm x 0.48 mmPackage information2021-09-15
          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
          WAVE_BG-BD-1Wave soldering profileWave soldering2021-09-08
          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

          Support

          If you are in need of design/technical support, let us know and fill in the answer form, we'll get back to you shortly.

          Models

          File nameTitleTypeDate
          lvc245alvc245a IBIS modelIBIS model2021-02-02
          lvch245alvch245a IBIS modelIBIS model2013-04-07
          lvclvc Spice modelSPICE model2013-05-06

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