Octal D-type flip-flop; positive edge-trigger; 3-state

The 74AHC374; 74AHCT374 is a high-speed Si-gate CMOS device and is pin compatible with Low-power Schottky TTL (LSTTL). It is specified in compliance with JEDEC standard No. 7-A.

The 74AHC374; 74AHCT374 comprises eight D-type flip-flops featuring separate D-type inputs for each flip-flop and 3-state outputs for bus oriented applications. A clock input (CP) and an output enable input (OE) are common to all flip-flops.

The eight flip-flops will store the state of their individual D inputs that meet the set-up and hold times requirements for the LOW-to-HIGH CP transition.

When OE is LOW the content of the eight flip-flops is available at the outputs. When OE is HIGH, the outputs go to the high-impedance OFF-state. Operation of the OE input does not affect the state of the flip-flops.


  • Balanced propagation delays
  • All inputs have Schmitt-trigger actions
  • Inputs accept voltages higher than VCC
  • Common 3-state output enable input
  • Input levels:
    • For 74AHC374: CMOS level
    • For 74AHCT374: TTL level
  • ESD protection:
    • HBM EIA/JESD22-A114E exceeds 2000 V
    • MM EIA/JESD22-A115-A exceeds 200 V
    • CDM EIA/JESD22-C101C exceeds 1000 V
  • Multiple package options
  • Specified from -40 °C to +85 °C and from -40 °C to +125 °C


Type numberProduct statusVCC (V)Logic switching levelsOutput drive capability (mA)tpd (ns)fmax (MHz)Power dissipation considerationsTamb (°C)Rth(j-a) (K/W)Ψth(j-top) (K/W)Rth(j-c) (K/W)Package name
74AHC374DProduction2.0 - 5.5CMOS± 84.4185low-40~1258427.061SO20
74AHC374PWProduction2.0 - 5.5CMOS± 84.4185low-40~1251004.544.5TSSOP20
74AHCT374DProduction4.5 - 5.5TTL± 84.3140low-40~1258427.061SO20
74AHCT374PWProduction4.5 - 5.5TTL± 84.3140low-40~1251004.544.5TSSOP20


Type numberPackageOutline versionReflow-/Wave solderingPackingStatusMarkingOrderable part number, (Ordering code (12NC))
SOT163-1Reel 13" Q1/T1Active74AHC374D74AHC374D,118
( 9352 626 80118 )
Reel 13" Q1/T1ActiveAHC37474AHC374PW,118
( 9352 626 81118 )
SOT163-1Reel 13" Q1/T1Active74AHCT374D74AHCT374D,118
( 9352 626 82118 )
Bulk PackActive74AHCT374D74AHCT374D,112
( 9352 626 82112 )
Reel 13" Q1/T1ActiveAHCT37474AHCT374PW,118
( 9352 626 83118 )
Bulk PackActiveAHCT37474AHCT374PW,112
( 9352 626 83112 )

Discontinuation information

Type numberOrderable part number, (Ordering code (12NC))Last time buy dateLast time delivery dateReplacement productStatusComments

      Quality, reliability & chemical content

      Type numberOrderable part numberChemical contentRoHS / RHFLeadfree conversion dateEFRIFRMTBF (hour)MSLMSL leadfree
      74AHC374D74AHC374D,11874AHC374Dweek 30, 200484.96.621.51E811
      74AHC374PW74AHC374PW,11874AHC374PWweek 7, 200584.96.621.51E811
      74AHCT374D74AHCT374D,11874AHCT374Dweek 30, 200484.96.621.51E811
      74AHCT374D74AHCT374D,11274AHCT374Dweek 30, 200484.96.621.51E811
      74AHCT374PW74AHCT374PW,11874AHCT374PWweek 5, 200584.96.621.51E811
      74AHCT374PW74AHCT374PW,11274AHCT374PWweek 5, 200584.96.621.51E811
      Quality and reliability disclaimer

      Documentation (11)

      File nameTitleTypeDate
      74AHC_AHCT374Octal D-type flip-flop; positive edge-trigger; 3-stateData sheet2017-07-20
      ahc374ahc374 IBIS modelIBIS model2013-04-07
      ahct374ahct374 IBIS modelIBIS model2013-04-07
      nexperia_selection_guide_2019_201901Selection guide 2019. Discretes, Logic and MOSFETsSelection guide2018-12-12
      SOT360-1_118TSSOP20; Reel pack; SMD, 13" Q1/T1 Standard product orientation Orderable part number ending ,118 or J Ordering code (12NC) ending 118Packing2013-04-15
      SOT360-1plastic, thin shrink small outline package; 20 leads; 0.65 mm pitch; 6.5 mm x 4.4 mm x 1.1 mm bodyOutline drawing2018-10-18
      SSOP-TSSOP-VSO-WAVEFootprint for wave solderingWave soldering2009-10-08
      SOT163-1_115Tape reel SMD; standard product orientation 12NC ending 115Packing2013-04-25
      SOT163-1_118SO20; Reel pack; SMD, 13" Q1/T1 Standard product orientation Orderable part number ending ,118 or J Ordering code (12NC) ending 118Packing2013-04-15
      SOT163-1_518SO20; Reel dry pack; SMD, 13" Q1/T1 Standard product orientation Orderable part number ending ,518 or Y Ordering code (12NC) ending 518Packing2014-12-16
      SOT163-1plastic, small outline package; 20 leads; 1.27 mm pitch; 12.8 mm x 7.5 mm x 2.65 mm bodyOutline drawing2018-10-18


      If you are in need of design/technical support, let us know and fill in the answer form, we'll get back to you shortly.


      File nameTitleTypeDate
      ahc374ahc374 IBIS modelIBIS model2013-04-07
      ahct374ahct374 IBIS modelIBIS model2013-04-07

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