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74LVT244A; 74LVTH244A

3.3 V octal buffer/line driver; 3-state

The 74LVT244A; 74LVTH244A is an 8-bit buffer/line driver with 3-state outputs. The device can be used as two 4-bit buffers or one 8-bit buffer. The device features two output enables (1OE and 2OE), each controlling four of the 3-state outputs. A HIGH on nOE causes the outputs to assume a high-impedance OFF-state. Bus hold data inputs eliminate the need for external pull-up resistors to define unused inputs

Features and benefits

  • Octal bus interface
  • 3-state buffers
  • Output capability: +64 mA and -32 mA
  • Wide supply voltage range from 2.7 to 3.6 V
  • Overvoltage tolerant inputs to 5.5 V
  • Direct interface with TTL levels
  • BiCMOS high speed and output drive
  • IOFF circuitry provides partial Power-down mode operation
  • Bus hold data inputs eliminate need for external pull-up resistors to hold unused inputs
  • Live insertion and extraction permitted
  • Power-up 3-state
  • No bus current loading when output is tied to 5 V bus
  • Latch-up performance exceeds 500 mA per JESD 78 Class II Level B
  • Complies with JEDEC standard JESD8C (2.7 V to 3.6 V)
  • ESD protection:
    • HBM JESD22-A114E exceeds 2000 V
    • MM JESD22-A115-A exceeds 200 V
  • Specified from -40 °C to 85 °C

Parametrics

Type numberProduct statusVCC (V)Logic switching levelsOutput drive capability (mA)fmax (MHz)No of bitsPower dissipation considerationsTamb (°C)Rth(j-a) (K/W)Rth(j-c) (K/W)Package name
74LVT244ABQProduction2.7 - 3.6TTL-32 / +641508medium-40~857748DHVQFN20
74LVT244ADProduction2.7 - 3.6TTL-32 / +641508medium-40~858460SO20
74LVT244APWProduction2.7 - 3.6TTL-32 / +641508medium-40~8510044TSSOP20
74LVTH244ABQProduction2.7 - 3.6TTL-32 / +641508medium-40~857748DHVQFN20
74LVTH244ADProduction2.7 - 3.6TTL-32 / +641508medium-40~858460SO20
74LVTH244APWProduction2.7 - 3.6TTL-32 / +641508medium-40~8510044TSSOP20

Package

Type numberPackagePackage informationReflow-/Wave solderingPackingStatusMarkingOrderable part number, (Ordering code (12NC))
74LVT244ABQ
DHVQFN20
(SOT764-1)
SOT764-1Reel 7” Q1/T1 or Q2/T3ActiveLVT244A74LVT244ABQ,115
( 9352 856 02115 )
74LVT244AD
SO20
(SOT163-1)
SOT163-1WAVE_BG-BD-1
Reel 13" Q1/T1Active74LVT244AD74LVT244AD,118
( 9351 671 30118 )
74LVT244APW
TSSOP20
(SOT360-1)
SOT360-1SSOP-TSSOP-VSO-WAVE
Reel 13" Q1/T1ActiveLVT244A74LVT244APW,118
( 9351 763 80118 )
74LVTH244ABQ
DHVQFN20
(SOT764-1)
SOT764-1Reel 7” Q1/T1 or Q2/T3ActiveLVTH244A74LVTH244ABQ,115
( 9352 856 03115 )
74LVTH244AD
SO20
(SOT163-1)
SOT163-1WAVE_BG-BD-1
Reel 13" Q1/T1Active74LVTH244AD74LVTH244AD,118
( 9352 620 69118 )
74LVTH244APW
TSSOP20
(SOT360-1)
SOT360-1SSOP-TSSOP-VSO-WAVE
Reel 13" Q1/T1ActiveVTH244A74LVTH244APW,118
( 9352 620 71118 )

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))
74LVT244AD
SO20
(SOT163-1)
SOT163-1WAVE_BG-BD-1
Bulk PackDiscontinued / End-of-life74LVT244AD74LVT244AD,112
( 9351 671 30112 )
74LVT244APW
TSSOP20
(SOT360-1)
SOT360-1SSOP-TSSOP-VSO-WAVE
Bulk PackDiscontinued / End-of-lifeLVT244A74LVT244APW,112
( 9351 763 80112 )
74LVTH244AD
SO20
(SOT163-1)
SOT163-1WAVE_BG-BD-1
Bulk PackDiscontinued / End-of-life74LVTH244AD74LVTH244AD,112
( 9352 620 69112 )
74LVTH244APW
TSSOP20
(SOT360-1)
SOT360-1SSOP-TSSOP-VSO-WAVE
Bulk PackDiscontinued / End-of-lifeVTH244A74LVTH244APW,112
( 9352 620 71112 )

Discontinuation information

Type numberOrderable part number, (Ordering code (12NC))Last time buy dateLast time delivery dateReplacement productStatusComments
74LVT244AD935167130112
74LVT244APW935176380112
74LVTH244AD935262069112
74LVTH244APW935262071112

Quality, reliability & chemical content

Type numberOrderable part numberChemical contentRoHS / RHFLeadfree conversion dateEFRIFRMTBF (hour)MSLMSL leadfree
74LVT244ABQ74LVT244ABQ,11574LVT244ABQAlways Pb-free50.40.81.25E911
74LVT244AD74LVT244AD,11874LVT244ADweek 4, 200450.40.81.25E911
74LVT244APW74LVT244APW,11874LVT244APWweek 7, 200550.40.81.25E911
74LVTH244ABQ74LVTH244ABQ,11574LVTH244ABQAlways Pb-free50.40.81.25E911
74LVTH244AD74LVTH244AD,11874LVTH244ADAlways Pb-free50.40.81.25E911
74LVTH244APW74LVTH244APW,11874LVTH244APWAlways Pb-free50.40.81.25E911

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
74LVT244AD74LVT244AD,11274LVT244ADweek 4, 200450.40.81.25E911
74LVT244APW74LVT244APW,11274LVT244APWweek 7, 200550.40.81.25E911
74LVTH244AD74LVTH244AD,11274LVTH244ADAlways Pb-free50.40.81.25E911
74LVTH244APW74LVTH244APW,11274LVTH244APWAlways Pb-free50.40.81.25E911
Quality and reliability disclaimer

Documentation (7)

File nameTitleTypeDate
74LVT_LVTH244A3.3 V octal buffer/line driver; 3-stateData sheet2021-08-17
lvt244alvt244a IBIS modelIBIS model2013-04-07
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
lvt244alvt244a IBIS modelIBIS model2013-04-07

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