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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 levelsOutput drive capabilitytpd (ns)No of bitsfmax (MHz)Power dissipation considerationsTamb (°C)Rth(j-a) (K/W)Rth(j-c) (K/W)Package name
74LVC245ABQProduction1.2 - 3.6n.a.CMOS/LVTTL± 242.98175low-40~1257748DHVQFN20
74LVC245ABZProduction1.2 - 3.6n.a.CMOS/LVTTL----low-40~125--DHXQFN
74LVC245ADProduction1.2 - 3.6n.a.CMOS/LVTTL± 242.98175low-40~1258460SO20
74LVC245APWProduction1.2 - 3.6n.a.CMOS/LVTTL± 242.98175low-40~12510044TSSOP20
74LVCH245ABQProduction1.2 - 3.6n.a.CMOS/LVTTL± 242.98175low-40~1257748DHVQFN20
74LVCH245ADProduction1.2 - 3.6n.a.CMOS/LVTTL± 242.98175low-40~1258460SO20
74LVCH245APWProduction1.2 - 3.6n.a.CMOS/LVTTL± 242.98175low-40~12510044TSSOP20

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 PackDiscontinued / End-of-life74LVC245AD74LVC245AD,112
( 9352 115 10112 )
74LVC245APW
TSSOP20
(SOT360-1)
SOT360-1SSOP-TSSOP-VSO-WAVE
Bulk PackDiscontinued / End-of-lifeLVC245A LVC245A Standard Procedure Standard Procedure74LVC245APW,112
( 9352 115 40112 )
74LVCH245AD
SO20
(SOT163-1)
SOT163-1WAVE_BG-BD-1
Bulk PackDiscontinued / End-of-life74LVCH245AD74LVCH245AD,112
( 9352 115 50112 )
74LVCH245APW
TSSOP20
(SOT360-1)
SOT360-1SSOP-TSSOP-VSO-WAVE
Bulk PackDiscontinued / End-of-lifeVCH245A74LVCH245APW,112
( 9352 115 70112 )

Discontinuation information

Type numberOrderable part number, (Ordering code (12NC))Last time buy dateLast time delivery dateReplacement productStatusComments
74LVC245AD935211510112
74LVC245APW935211540112
74LVCH245AD935211550112
74LVCH245APW935211570112

Quality, reliability & chemical content

Type numberOrderable part numberChemical contentRoHS / RHFLeadfree conversion dateEFRIFRMTBF (hour)MSLMSL leadfree
74LVC245ABQ74LVC245ABQ,11574LVC245ABQAlways Pb-free19.30.52E911
74LVC245ABZ74LVC245ABZX74LVC245ABZ19.30.52E9
74LVC245AD74LVC245AD,11874LVC245ADweek 30, 200419.30.52E911
74LVC245APW74LVC245APW,11874LVC245APWweek 7, 200519.30.52E911
74LVCH245ABQ74LVCH245ABQ,11574LVCH245ABQAlways Pb-free19.30.52E911
74LVCH245AD74LVCH245AD,11874LVCH245ADweek 30, 200419.30.52E911
74LVCH245APW74LVCH245APW,11874LVCH245APWweek 7, 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
74LVC245AD74LVC245AD,11274LVC245ADweek 30, 200419.30.52E911
74LVC245APW74LVC245APW,11274LVC245APWweek 7, 200519.30.52E911
74LVCH245AD74LVCH245AD,11274LVCH245ADweek 30, 200419.30.52E911
74LVCH245APW74LVCH245APW,11274LVCH245APWweek 7, 200519.30.52E911
Quality and reliability disclaimer

Documentation (11)

File nameTitleTypeDate
74LVC_LVCH245AOctal bus transceiver; 3-stateData sheet2021-09-16
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 information2021-08-17
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
WAVE_BG-BD-1Wave soldering profileWave soldering2021-09-08

Support

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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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