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74AHC245; 74AHCT245

Octal bus transceiver; 3-state

The 74AHC245; 74AHCT245 is an 8-bit transceiver with 3-state outputs. The device features an output enable (OE) and send/receive (DIR) for direction control. A HIGH on OE 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.

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 74AHC245: CMOS level
    • For 74AHCT245: 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

Parametrics

Type numberProduct statusVCC(A) (V)VCC(B) (V)Logic switching levelsOutput drive capabilitytpd (ns)No of bitsfmax (MHz)Power dissipation considerationsTamb (°C)Rth(j-a) (K/W)Rth(j-c) (K/W)Package name
74AHC245BQProduction2.0 - 5.5n.a.CMOS± 83.5860low-40~1257547DHVQFN20
74AHC245DProduction2.0 - 5.5n.a.CMOS± 83.5860low-40~1258359SO20
74AHC245PWProduction2.0 - 5.5n.a.CMOS± 83.5860low-40~1259943.3TSSOP20
74AHCT245APWProduction4.5 - 5.5n.a.TTL± 83.0860low-40~12510145TSSOP20
74AHCT245BQProduction4.5 - 5.5n.a.TTL± 85.0860low-40~1257547DHVQFN20
74AHCT245DProduction4.5 - 5.5n.a.TTL± 85.0860low-40~1258359SO20
74AHCT245PWProduction4.5 - 5.5n.a.TTL± 85.0860low-40~1259943.3TSSOP20

Package

Type numberPackagePackage informationReflow-/Wave solderingPackingStatusMarkingOrderable part number, (Ordering code (12NC))
74AHC245BQ
DHVQFN20
(SOT764-1)
SOT764-1Reel 7” Q1/T1 or Q2/T3ActiveAHC24574AHC245BQ,115
( 9352 891 07115 )
74AHC245D
SO20
(SOT163-1)
SOT163-1WAVE_BG-BD-1
Reel 13" Q1/T1Active74AHC245D74AHC245D,118
( 9352 620 03118 )
74AHC245PW
TSSOP20
(SOT360-1)
SOT360-1SSOP-TSSOP-VSO-WAVE
Reel 13" Q1/T1ActiveAHC24574AHC245PW,118
( 9352 620 05118 )
74AHCT245APW
TSSOP20
(SOT360-1)
SOT360-1SSOP-TSSOP-VSO-WAVE
Reel 13" Q1/T1ActiveAHT245A74AHCT245APWJ
( 9353 078 76118 )
74AHCT245BQ
DHVQFN20
(SOT764-1)
SOT764-1Reel 7” Q1/T1 or Q2/T3ActiveAHCT24574AHCT245BQ,115
( 9352 891 08115 )
74AHCT245D
SO20
(SOT163-1)
SOT163-1WAVE_BG-BD-1
Reel 13" Q1/T1Active74AHCT245D74AHCT245D,118
( 9352 619 60118 )
74AHCT245PW
TSSOP20
(SOT360-1)
SOT360-1SSOP-TSSOP-VSO-WAVE
Reel 13" Q1/T1ActiveAHCT24574AHCT245PW,118
( 9352 619 62118 )

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))
74AHC245D
SO20
(SOT163-1)
SOT163-1WAVE_BG-BD-1
Bulk PackDiscontinued / End-of-life74AHC245D74AHC245D,112
( 9352 620 03112 )
74AHC245PW
TSSOP20
(SOT360-1)
SOT360-1SSOP-TSSOP-VSO-WAVE
Bulk PackDiscontinued / End-of-lifeAHC24574AHC245PW,112
( 9352 620 05112 )
74AHCT245D
SO20
(SOT163-1)
SOT163-1WAVE_BG-BD-1
Bulk PackDiscontinued / End-of-life74AHCT245D74AHCT245D,112
( 9352 619 60112 )
74AHCT245PW
TSSOP20
(SOT360-1)
SOT360-1SSOP-TSSOP-VSO-WAVE
Bulk PackDiscontinued / End-of-lifeAHCT24574AHCT245PW,112
( 9352 619 62112 )

Discontinuation information

Type numberOrderable part number, (Ordering code (12NC))Last time buy dateLast time delivery dateReplacement productStatusComments
74AHC245D9352620031122021-12-312022-06-3074AHC245D
    74AHC245PW9352620051122021-12-312022-06-3074AHC245PW
      74AHCT245D9352619601122021-12-312022-06-3074AHCT245D
        74AHCT245PW9352619621122021-12-312022-06-3074AHCT245PW

          Quality, reliability & chemical content

          Type numberOrderable part numberChemical contentRoHS / RHFLeadfree conversion dateEFRIFRMTBF (hour)MSLMSL leadfree
          74AHC245BQ74AHC245BQ,11574AHC245BQAlways Pb-free19.30.52E911
          74AHC245D74AHC245D,11874AHC245Dweek 30, 200419.30.52E911
          74AHC245PW74AHC245PW,11874AHC245PWweek 7, 200519.30.52E911
          74AHCT245APW74AHCT245APWJ74AHCT245APWAlways Pb-free19.30.52E911
          74AHCT245BQ74AHCT245BQ,11574AHCT245BQAlways Pb-free19.30.52E911
          74AHCT245D74AHCT245D,11874AHCT245Dweek 30, 200419.30.52E911
          74AHCT245PW74AHCT245PW,11874AHCT245PWweek 7, 200519.30.52E911

          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
          74AHC245D74AHC245D,11274AHC245Dweek 30, 200419.30.52E911
          74AHC245PW74AHC245PW,11274AHC245PWweek 7, 200519.30.52E911
          74AHCT245D74AHCT245D,11274AHCT245Dweek 30, 200419.30.52E911
          74AHCT245PW74AHCT245PW,11274AHCT245PWweek 7, 200519.30.52E911
          Quality and reliability disclaimer

          Documentation (8)

          File nameTitleTypeDate
          74AHC_AHCT245Octal bus transceiver; 3-stateData sheet2020-07-03
          ahct245ahct245 IBIS modelIBIS model2013-04-07
          ahc245ahc245 IBIS modelIBIS model2013-04-07
          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
          SSOP-TSSOP-VSO-WAVEFootprint for wave solderingWave soldering2009-10-08
          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
          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
          ahct245ahct245 IBIS modelIBIS model2013-04-07
          ahc245ahc245 IBIS modelIBIS model2013-04-07

          Sample

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