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HEF40244B

Octal buffers with 3-state outputs

The HEF40244B 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. Inputs include clamp diodes. This enables the use of current limiting resistors to interface inputs to voltages in excess of VCC.

Features and benefits

  • Wide supply voltage range from 3.0 to 15.0 V

  • CMOS low power dissipation

  • High noise immunity

  • Complies with JEDEC standard JESD 13-B

  • ESD protection

    • HBM ANSI/ESDA/JEDEC JS-001 exceeds 2000 V

    • MM EIA/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)Nr of bitsPower dissipation considerationsTamb (°C)Rth(j-a) (K/W)Rth(j-c) (K/W)Package name
HEF40244BTProduction3.0 - 15CMOS-62 / +45108medium-40~857652SO20

Package

Type numberPackagePackage informationReflow-/Wave solderingPackingStatusMarkingOrderable part number, (Ordering code (12NC))
HEF40244BT
SO20
(SOT163-1) 		SOT163-1WAVE_BG-BD-1
SOT163-1_653ActiveHEF40244BTHEF40244BT,653
( 9336 386 80653 )

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))
HEF40244BT
SO20
(SOT163-1) 		SOT163-1WAVE_BG-BD-1
SOT163-1_652Withdrawn / End-of-lifeHEF40244BTHEF40244BT,652
( 9336 386 80652 )

Discontinuation information

Type numberOrderable part number, (Ordering code (12NC))Last time buy dateLast time delivery dateReplacement productStatusComments
HEF40244BT9336386806522021-12-312022-06-30HEF40244BT

    Environmental information

    Type numberOrderable part numberChemical contentRoHSRHF-indicatorLeadfree conversion date
    HEF40244BTHEF40244BT,653HEF40244BTweek 30, 2004

    The variants in the table below are discontinued. See the table Discontinuation information for more information.

    Type numberOrderable part numberChemical contentRoHSRHF-indicatorLeadfree conversion date
    HEF40244BTHEF40244BT,652HEF40244BTweek 30, 2004
    Quality and reliability disclaimer

    Documentation (4)

    File nameTitleTypeDate
    HEF40244BOctal buffers with 3-state outputsData sheet2023-10-20
    Nexperia_Selection_guide_2023Nexperia Selection Guide 2023Selection guide2023-05-10
    SOT163-1plastic, small outline package; 20 leads; 1.27 mm pitch; 12.8 mm x 7.5 mm x 2.65 mm bodyPackage information2022-06-20
    WAVE_BG-BD-1Wave soldering profileWave soldering2021-09-08

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    Ordering, pricing & availability

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