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74AHCT244BQ

Octal buffer/line driver; 3-state

The 74AHC244; 74AHCT244 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 are overvoltage tolerant. This feature allows the use of these devices as translators in mixed voltage environments.

Orderable parts

Type number Orderable part number Ordering code (12NC) Package Buy from distributors
74AHCT244BQ 74AHCT244BQ,115 935285541115 SOT764-1 Order product

Features and benefits

  • Wide supply voltage range from 2.0 V to 5.5 V
  • Balanced propagation delays
  • All inputs have Schmitt-trigger action
  • Overvoltage tolerant inputs to 5.5 V
  • High noise immunity
  • CMOS low power dissipation
  • Input levels:
    • For 74AHC244: CMOS level
    • For 74AHCT244: TTL level
  • ESD protection:
    • HBM JESD22-A114F exceeds 2000 V
    • MM JESD22-A115-A exceeds 200 V
    • CDM JESD22-C101E exceeds 1000 V
  • Latch-up performance exceeds 100 mA per JESD 78 Class II Level A
  • Multiple package options
  • Specified from -40 °C to +85 °C and from -40 °C to +125 °C

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)Rth(j-c) (K/W)Package name
74AHCT244BQProduction4.5 - 5.5TTL± 8608low-40~125789.150DHVQFN20

Package

Type numberOrderable part number, (Ordering code (12NC))StatusMarkingPackagePackage informationReflow-/Wave solderingPacking
74AHCT244BQ74AHCT244BQ,115
( 9352 855 41115 )
ActiveAHCT244
DHVQFN20
(SOT764-1)
SOT764-1Reel 7” Q1/T1 or Q2/T3

Quality, reliability & chemical content

Type numberOrderable part numberChemical contentRoHS / RHFEFRIFRMTBF (hour)MSLMSL leadfree
74AHCT244BQ74AHCT244BQ,11574AHCT244BQ84.96.621.51E811
Quality and reliability disclaimer

Documentation (3)

File nameTitleTypeDate
74AHC_AHCT244Octal buffer/line driver; 3-stateData sheet2020-07-02
AN11106Pin FMEA for AHC/AHCT familyApplication note2019-01-09
ahct244ahct244 IBIS modelIBIS model2013-04-07

Support

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Models

File nameTitleTypeDate
ahct244ahct244 IBIS modelIBIS model2013-04-07

Ordering, pricing & availability

Type numberOrderable part numberOrdering code (12NC)PackingBuy online
74AHCT244BQ74AHCT244BQ,115935285541115Reel 7” Q1/T1 or Q2/T3Order product

Sample

As a Nexperia customer you can order samples via our sales organization or directly via our Online Sample Store: https://extranet.nexperia.com.

Sample orders normally take 2-4 days for delivery.

If you do not have a direct account with Nexperia our network of global and regional distributors is available and equipped to support you with Nexperia samples.