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

  • 5 V tolerant inputs/outputs for interfacing with 5 V logic
  • 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 levelstpd (ns)No of bitsfmax (MHz)Power dissipation considerationsRth(j-a) (K/W)Rth(j-c) (K/W)Package name
74LVC245ABQProduction1.2 - 3.6n.a.CMOS/LVTTL2.98175low7748DHVQFN20
74LVC245ADProduction1.2 - 3.6n.a.CMOS/LVTTL2.98175low8460SO20
74LVC245ADB
NRND
Not for design inSSOP20
74LVC245APWProduction1.2 - 3.6n.a.CMOS/LVTTL2.98175low10044TSSOP20
74LVCH245ABQProduction1.2 - 3.6n.a.CMOS/LVTTL2.98175low7748DHVQFN20
74LVCH245ADProduction1.2 - 3.6n.a.CMOS/LVTTL2.98175low8460SO20
74LVCH245ADB
NRND
Not for design inSSOP20
74LVCH245APWProduction1.2 - 3.6n.a.CMOS/LVTTL2.98175low10044TSSOP20

Package

Type numberPackagePackage informationReflow-/Wave solderingPackingStatusMarkingOrderable part number, (Ordering code (12NC))
74LVC245ABQ
DHVQFN20
(SOT764-1)
SOT764-1Reel 7” Q1/T1 or Q2/T3ActiveLVC245A74LVC245ABQ,115
( 9352 735 95115 )
74LVC245AD
SO20
(SOT163-1)
SOT163-1Reel 13" Q1/T1Active74LVC245AD74LVC245AD,118
( 9352 115 10118 )
Bulk PackActive74LVC245AD74LVC245AD,112
( 9352 115 10112 )
74LVC245ADB
NRND

SSOP20
(SOT339-1)
SOT339-1SSOP-TSSOP-VSO-WAVE
Reel 13" Q1/T1ActiveLVC245A74LVC245ADB,118
( 9352 115 30118 )
Bulk PackActiveLVC245A74LVC245ADB,112
( 9352 115 30112 )
74LVC245APW
TSSOP20
(SOT360-1)
SOT360-1SSOP-TSSOP-VSO-WAVE
Reel 13" Q1/T1ActiveLVC245A LVC245A Standard Procedure Standard Procedure74LVC245APW,118
( 9352 115 40118 )
Bulk PackActiveLVC245A LVC245A Standard Procedure Standard Procedure74LVC245APW,112
( 9352 115 40112 )
74LVCH245ABQ
DHVQFN20
(SOT764-1)
SOT764-1Reel 7” Q1/T1 or Q2/T3ActiveLVCH245A74LVCH245ABQ,115
( 9352 736 96115 )
74LVCH245AD
SO20
(SOT163-1)
SOT163-1Reel 13" Q1/T1Active74LVCH245AD74LVCH245AD,118
( 9352 115 50118 )
Bulk PackActive74LVCH245AD74LVCH245AD,112
( 9352 115 50112 )
74LVCH245ADB
NRND

SSOP20
(SOT339-1)
SOT339-1SSOP-TSSOP-VSO-WAVE
Reel 13" Q1/T1ActiveVCH245A74LVCH245ADB,118
( 9352 115 60118 )
74LVCH245APW
TSSOP20
(SOT360-1)
SOT360-1SSOP-TSSOP-VSO-WAVE
Reel 13" Q1/T1ActiveVCH245A74LVCH245APW,118
( 9352 115 70118 )
Bulk PackActiveVCH245A74LVCH245APW,112
( 9352 115 70112 )

Discontinuation information

Type numberOrderable part number, (Ordering code (12NC))Last time buy dateLast time delivery dateReplacement productStatusComments
74LVCH245ADB9352115601122018-12-312019-06-3074LVCH245ADB

    Quality, reliability & chemical content

    Type numberOrderable part numberChemical contentRoHS / RHFLeadfree conversion dateMSLMSL leadfree
    74LVC245ABQ74LVC245ABQ,11574LVC245ABQAlways Pb-free11
    74LVC245AD74LVC245AD,11874LVC245ADweek 30, 200411
    74LVC245AD74LVC245AD,11274LVC245ADweek 30, 200411
    74LVC245ADB
    NRND
    74LVC245ADB,11874LVC245ADBweek 17, 200511
    74LVC245ADB
    NRND
    74LVC245ADB,11274LVC245ADBweek 17, 200511
    74LVC245APW74LVC245APW,11874LVC245APWweek 7, 200511
    74LVC245APW74LVC245APW,11274LVC245APWweek 7, 200511
    74LVCH245ABQ74LVCH245ABQ,11574LVCH245ABQAlways Pb-free11
    74LVCH245AD74LVCH245AD,11874LVCH245ADweek 30, 200411
    74LVCH245AD74LVCH245AD,11274LVCH245ADweek 30, 200411
    74LVCH245ADB
    NRND
    74LVCH245ADB,11874LVCH245ADBweek 17, 200511
    74LVCH245APW74LVCH245APW,11874LVCH245APWweek 7, 200511
    74LVCH245APW74LVCH245APW,11274LVCH245APWweek 7, 200511
    Quality and reliability disclaimer

    Documentation (11)

    File nameTitleTypeDate
    74LVC_LVCH245AOctal bus transceiver; 3-stateData sheet2020-08-05
    AN11009Pin FMEA for LVC familyApplication note2019-01-09
    lvc245alvc245a IBIS modelIBIS model2013-04-07
    lvch245alvch245a IBIS modelIBIS model2013-04-07
    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 information2020-04-21
    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 information2020-04-21
    SOT163-1plastic, small outline package; 20 leads; 1.27 mm pitch; 12.8 mm x 7.5 mm x 2.65 mm bodyPackage information2020-04-21
    SSOP-TSSOP-VSO-WAVEFootprint for wave solderingWave soldering2009-10-08
    SOT339-1plastic, shrink small outline package; 20 leads; 0.65 mm pitch; 7.2 mm x 5.3 mm x 2 mm bodyPackage information2020-04-21

    Support

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    Models

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

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