74LVC244ABX NRND

Octal buffer/line driver; 3-state

The 74LVC244A; 74LVCH244A is an octal non-inverting buffer/line driver with 3-state outputs. The 3-state outputs are controlled by the output enable inputs 1OE and 2OE. A HIGH on nOE causes the outputs to assume a high-impedance OFF-state. Schmitt-trigger action at all inputs makes the circuit highly tolerant for slower input rise and fall times.

Inputs can be driven from either 3.3 V or 5.0 V devices. In 3-state operation, outputs can handle 5 V. These features allow the use of these devices as translators in a mixed 3.3 V and 5 V environment.

The 74LVCH244A bus hold on data inputs eliminates the need for external pull-up resistors to hold unused inputs.

Not recommended for new designs (NRND).
This product has been discontinued, click here for discontinuation information and replacement parts.

Orderable parts

Type number Orderable part number Ordering code (12NC) Package Buy from distributors
74LVC244ABX 74LVC244ABX,115 935289828115 SOT1045-2 Order product

Features

  • 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
  • Inputs accept voltages up to 5.5 V
  • High-impedance when VCC = 0 V
  • Bus hold on all data inputs (74LVCH244A only)
  • 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

Target applications

Parametrics

Type numberProduct statusVCC (V)Logic switching levelsOutput drive capability (mA)fmax (MHz)No of bitsPower dissipation considerationsTamb (°C)Rth(j-a) (K/W)Ψth(j-top) (K/W)Package name
74LVC244ABX
NRND
End of life1.2 - 3.6CMOS/LVTTL+/- 241758low-40~1255023.0DHXQFN20

Package

All type numbers in the table below are discontinued. See the table Discontinuation information for more information.

Type numberOrderable part number, (Ordering code (12NC))StatusMarkingPackageOutline versionReflow-/Wave solderingPacking
74LVC244ABX
NRND
74LVC244ABX,115
( 9352 898 28115 )
Withdrawn / End-of-lifeLVC244A
DHXQFN20
(SOT1045-2)
SOT1045-2Reel 7" Q1/T1

Discontinuation information

Type numberOrderable part numberlabel.orderingCodeLast time buy dateLast time delivery dateReplacement productStatusComments
74LVC244ABX
NRND
74LVC244ABX,1159352898281152017-07-302018-01-30No replacementVersion withdrawal

Quality, reliability & chemical content

All type numbers in the table below are discontinued. See the table Discontinuation information for more information.

Type numberOrderable part numberChemical contentRoHS / RHFMSLMSL leadfree
74LVC244ABX
NRND
74LVC244ABX,115Not available11
Quality and reliability disclaimer

Documentation (5)

File nameTitleTypeDate
74LVC_LVCH244AOctal buffer/line driver; 3-stateData sheet2018-08-13
AN11009Pin FMEA for LVC familyApplication note2019-01-09
lvc244alvc244a IBIS modelIBIS model2013-04-07
lvclvc Spice modelSPICE model2013-05-06
SOT1045-2plastic, dual in-line compatible thermal enhanced extremely thin quad flat package; 20 terminals; 0.5 mm pitch; 4.5 mm x 2.5 mm x 0.5 mm bodyOutline drawing2017-01-30

Support

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Models

File nameTitleTypeDate
lvc244alvc244a IBIS modelIBIS model2013-04-07
lvclvc Spice modelSPICE model2013-05-06