74AHC245-Q100; 74AHCT245-Q100

Octal bus transceiver; 3-state

The 74AHC245-Q100; 74AHCT245-Q100 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.

This product has been qualified to the Automotive Electronics Council (AEC) standard Q100 (Grade 1) and is suitable for use in automotive applications.

Features and benefits

  • Automotive product qualification in accordance with AEC-Q100 (Grade 1)
    • Specified from -40 °C to +85 °C and from -40 °C to +125 °C
  • 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-Q100: CMOS level
    • For 74AHCT245-Q100: TTL level
  • ESD protection:
    • MIL-STD-883, method 3015 exceeds 2000 V
    • HBM JESD22-A114F exceeds 2000 V
    • MM JESD22-A115-A exceeds 200 V (C = 200 pf, R = 0 Ω)
  • Latch-up performance exceeds 100 mA per JESD 78 Class II Level A
  • Multiple package options
  • DHVQFN package with Side-Wettable Flanks enabling Automatic Optical Inspection (AOI) of solder joints


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
74AHC245BQ-Q100Production2.0 - 5.5CMOS+/- 8608low-40~125757.147DHVQFN20
74AHC245D-Q100Production2.0 - 5.5CMOS+/- 8608low-40~1258325.659SO20
74AHC245PW-Q100Production2.0 - 5.5CMOS+/- 8608low-40~125994.343.3TSSOP20
74AHCT245BQ-Q100Production4.5 - 5.5TTL+/- 8608low-40~125757.147DHVQFN20
74AHCT245D-Q100Production4.5 - 5.5TTL+/- 8608low-40~1258325.659SO20
74AHCT245PW-Q100Production4.5 - 5.5TTL+/- 8608low-40~125994.343.3TSSOP20


Type numberPackagePackage informationReflow-/Wave solderingPackingStatusMarkingOrderable part number, (Ordering code (12NC))
SOT764-1Reel 7” Q1/T1 or Q2/T3ActiveAHC24574AHC245BQ-Q100X
( 9353 001 84115 )
Reel 13" Q1/T1Active74AHC245D74AHC245D-Q100J
( 9353 001 85118 )
Reel 13" Q1/T1ActiveAHC24574AHC245PW-Q100J
( 9353 001 86118 )
SOT764-1Reel 7” Q1/T1 or Q2/T3ActiveAHCT24574AHCT245BQ-Q100X
( 9353 002 02115 )
Reel 13" Q1/T1Active74AHCT245D74AHCT245D-Q100J
( 9353 002 03118 )
Reel 13" Q1/T1ActiveAHCT24574AHCT245PW-Q100J
( 9353 002 04118 )

Quality, reliability & chemical content

Type numberOrderable part numberChemical contentRoHS / RHFLeadfree conversion dateEFRIFRMTBF (hour)MSLMSL leadfree
74AHC245BQ-Q10074AHC245BQ-Q100X74AHC245BQ-Q100Always Pb-free29.90.91.11E911
74AHC245D-Q10074AHC245D-Q100J74AHC245D-Q100Always Pb-free29.90.91.11E911
74AHC245PW-Q10074AHC245PW-Q100J74AHC245PW-Q100Always Pb-free29.90.91.11E911
74AHCT245BQ-Q10074AHCT245BQ-Q100X74AHCT245BQ-Q100Always Pb-free29.90.91.11E911
74AHCT245D-Q10074AHCT245D-Q100J74AHCT245D-Q100Always Pb-free29.90.91.11E911
74AHCT245PW-Q10074AHCT245PW-Q100J74AHCT245PW-Q100Always Pb-free29.90.91.11E911
Quality and reliability disclaimer

Documentation (8)

File nameTitleTypeDate
74AHC_AHCT245_Q100Octal bus transceiver; 3-stateData sheet2020-07-06
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
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


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
ahct245ahct245 IBIS modelIBIS model2013-04-07
ahc245ahc245 IBIS modelIBIS model2013-04-07


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