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74LVT244B; 74LVTH244B

3.3 V octal buffer/line driver; 3-state

The 74LVT244B; 74LVTH244B 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
  • Speed upgrade of 74LVT244A
  • Wide supply voltage range from 2.7 to 3.6 V
  • BiCMOS high speed and output drive
  • Output capability: +64 mA and -32 mA
  • Direct interface with TTL levels
  • Overvoltage tolerant inputs to 5.5 V
  • Input and output interface capability to systems at 5 V supply
  • Bus hold data inputs eliminate need for external pull-up resistors to hold unused inputs
  • No bus current loading when output is tied to 5 V bus
  • Power-up 3-state
  • Live insertion and extraction permitted
  • IOFF circuitry provides partial Power-down mode operation
  • Latch-up performance exceeds 500 mA per JESD 78 Class II Level B
  • Complies with JEDEC standards
    • JESD8C (2.7 V to 3.6 V)
  • ESD protection:
    • HBM EIA/JESD22-A114-C exceeds 2000 V
    • MM EIA/JESD22-A115-A 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
74LVT244BDProduction2.7 - 3.6TTL-32 / +641508medium-40~858460SO20
74LVT244BPWProduction2.7 - 3.6TTL-32 / +641508medium-40~8510044TSSOP20
74LVTH244BDProduction2.7 - 3.6TTL-32 / +641508medium-40~858460SO20
74LVTH244BPWProduction2.7 - 3.6TTL-32 / +641508medium-40~8510044TSSOP20

Package

Type numberPackagePackage informationReflow-/Wave solderingPackingStatusMarkingOrderable part number, (Ordering code (12NC))
74LVT244BD
SO20
(SOT163-1)
SOT163-1WAVE_BG-BD-1
Reel 13" Q1/T1Active74LVT244BD74LVT244BD,118
( 9352 627 91118 )
74LVT244BPW
TSSOP20
(SOT360-1)
SOT360-1SSOP-TSSOP-VSO-WAVE
Reel 13" Q1/T1ActiveLVT244B74LVT244BPW,118
( 9352 627 93118 )
74LVTH244BD
SO20
(SOT163-1)
SOT163-1WAVE_BG-BD-1
Reel 13" Q1/T1Active74LVTH244BD74LVTH244BD,118
( 9352 817 41118 )
74LVTH244BPW
TSSOP20
(SOT360-1)
SOT360-1SSOP-TSSOP-VSO-WAVE
Reel 13" Q1/T1ActiveVTH244B74LVTH244BPW,118
( 9352 817 43118 )

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))
74LVT244BD
SO20
(SOT163-1)
SOT163-1WAVE_BG-BD-1
Bulk PackDiscontinued / End-of-life74LVT244BD74LVT244BD,112
( 9352 627 91112 )
74LVT244BPW
TSSOP20
(SOT360-1)
SOT360-1SSOP-TSSOP-VSO-WAVE
Bulk PackDiscontinued / End-of-lifeLVT244B74LVT244BPW,112
( 9352 627 93112 )

Discontinuation information

Type numberOrderable part number, (Ordering code (12NC))Last time buy dateLast time delivery dateReplacement productStatusComments
74LVT244BD935262791112
74LVT244BPW935262793112
74LVTH244BD9352817411122018-12-312019-06-3074LVTH244BD
    74LVTH244BPW9352817431122018-12-312019-06-3074LVTH244BPW

      Quality, reliability & chemical content

      Type numberOrderable part numberChemical contentRoHS / RHFLeadfree conversion dateEFRIFRMTBF (hour)MSLMSL leadfree
      74LVT244BD74LVT244BD,11874LVT244BDweek 4, 200450.40.81.25E911
      74LVT244BPW74LVT244BPW,11874LVT244BPWweek 7, 200550.40.81.25E911
      74LVTH244BD74LVTH244BD,11874LVTH244BDAlways Pb-free50.40.81.25E911
      74LVTH244BPW74LVTH244BPW,11874LVTH244BPWAlways 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
      74LVT244BD74LVT244BD,11274LVT244BDweek 4, 200450.40.81.25E911
      74LVT244BPW74LVT244BPW,11274LVT244BPWweek 7, 200550.40.81.25E911
      Quality and reliability disclaimer

      Documentation (6)

      File nameTitleTypeDate
      74LVT_LVTH244B3.3 V octal buffer/line driver; 3-stateData sheet2021-08-12
      lvt244blvt244b IBIS modelIBIS model2013-04-07
      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
      lvt244blvt244b IBIS modelIBIS model2013-04-07

      Ordering, pricing & availability

      Sample

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