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74AHCT240

Octal buffer/line driver; inverting; 3-state

The 74AHCT240 is an 8-bit inverting buffer/line driver with 3-state outputs. This device can be used as two 4-bit buffers or one 8-bit buffer. It 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 are over voltage tolerant. This feature allows the use of these devices as translators in mixed voltage environments.

Features and benefits

  • Balanced propagation delays
  • All inputs have a Schmitt-trigger action
  • Inputs accepts voltages higher than VCC
  • Operates with TTL input levels
  • ESD protection:
    • HBM JESD22-A114F exceeds 2000 V
    • CDM JESD22-C101D exceeds 1000 V
  • Multiple package options
  • Specified from -40 °C to +85 °C and from -40 °C to +125 °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
74AHCT240BQProduction4.5 - 5.5TTL± 8608low-40~1257850DHVQFN20
74AHCT240DProduction4.5 - 5.5TTL± 8608low-40~1258561SO20
74AHCT240PWProduction4.5 - 5.5TTL± 8608low-40~12510044.6TSSOP20

Package

Type numberPackagePackage informationReflow-/Wave solderingPackingStatusMarkingOrderable part number, (Ordering code (12NC))
74AHCT240BQ
DHVQFN20
(SOT764-1)
SOT764-1Reel 7” Q1/T1 or Q2/T3ActiveAHCT24074AHCT240BQ,115
( 9352 826 27115 )
74AHCT240D
SO20
(SOT163-1)
SOT163-1WAVE_BG-BD-1
Reel 13" Q1/T1Active74AHCT240D74AHCT240D,118
( 9352 826 28118 )
74AHCT240PW
TSSOP20
(SOT360-1)
SOT360-1SSOP-TSSOP-VSO-WAVE
Reel 13" Q1/T1ActiveAHCT24074AHCT240PW,118
( 9352 826 29118 )

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))
74AHCT240PW
TSSOP20
(SOT360-1)
SOT360-1SSOP-TSSOP-VSO-WAVE
Bulk PackDiscontinued / End-of-lifeAHCT24074AHCT240PW,112
( 9352 826 29112 )

Discontinuation information

Type numberOrderable part number, (Ordering code (12NC))Last time buy dateLast time delivery dateReplacement productStatusComments
74AHCT240D9352826281122018-12-312019-06-3074AHCT240D
    74AHCT240PW9352826291122021-12-312022-06-3074AHCT240PW

      Quality, reliability & chemical content

      Type numberOrderable part numberChemical contentRoHS / RHFLeadfree conversion dateEFRIFRMTBF (hour)MSLMSL leadfree
      74AHCT240BQ74AHCT240BQ,11574AHCT240BQAlways Pb-free29.90.91.11E911
      74AHCT240D74AHCT240D,11874AHCT240DAlways Pb-free29.90.91.11E911
      74AHCT240PW74AHCT240PW,11874AHCT240PWAlways Pb-free29.90.91.11E911

      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
      74AHCT240PW74AHCT240PW,11274AHCT240PWAlways Pb-free29.90.91.11E911
      Quality and reliability disclaimer

      Documentation (8)

      File nameTitleTypeDate
      74AHCT240Octal buffer/line driver; inverting; 3-stateData sheet2020-06-29
      ahct240ahct240 IBIS modelIBIS model2013-04-07
      Nexperia_Selection_guide_2022Nexperia Selection Guide 2022Selection guide2022-01-05
      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
      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
      SSOP-TSSOP-VSO-WAVEFootprint for wave solderingWave soldering2009-10-08
      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
      ahct240ahct240 IBIS modelIBIS model2013-04-07

      Ordering, pricing & availability

      Sample

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