74AHCT240BQ

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.

Orderable parts

Type number Orderable part number Ordering code (12NC) Package Buy from distributors
74AHCT240BQ 74AHCT240BQ,115 935282627115 SOT764-1 Order product

Features

  • 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

Target applications

Parametrics

Type numberProduct statusVCC (V)Logic switching levelsOutput drive capability (mA)fmax (MHz)No of bitsPower dissipation considerationsTamb (Cel)Rth(j-a) (K/W)Ψth(j-top) (K/W)Rth(j-c) (K/W)Package name
74AHCT240BQProduction4.5 - 5.5TTL+/- 8608low-40~125789.150DHVQFN20

Package

Type numberOrderable part number, (Ordering code (12NC))StatusMarkingPackageOutline versionReflow-/Wave solderingPacking
74AHCT240BQ74AHCT240BQ,115
( 9352 826 27115 )
ActiveAHCT240
DHVQFN20
(SOT764-1)
SOT764-1Reel 7" Q1/T1

Quality, reliability & chemical content

Type numberOrderable part numberChemical contentRoHS / RHFEFRIFRMTBF (hour)MSLMSL leadfree
74AHCT240BQ74AHCT240BQ,11574AHCT240BQ84.96.621.51E811
Quality and reliability disclaimer

Documentation (5)

File nameTitleTypeDate
74AHCT240Octal buffer/line driver; inverting; 3-stateData sheet2017-03-16
AN11106Pin FMEA for AHC/AHCT familyApplication note2019-01-09
ahct240ahct240 IBIS modelIBIS model2013-04-07
SOT764-1_115DHVQFN20; Reel pack; SMD, 7" Q1/T1 Standard product orientation Orderable part number ending ,115 or X Ordering code (12NC) ending 115Packing2013-04-23
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 bodyOutline drawing2018-11-14

Support

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Models

File nameTitleTypeDate
ahct240ahct240 IBIS modelIBIS model2013-04-07

Ordering, pricing & availability

Type numberOrderable part numberOrdering code (12NC)PackingBuy online
74AHCT240BQ74AHCT240BQ,115935282627115Reel 7" Q1/T1Order product

Sample

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Sample orders normally take 2-4 days for delivery.

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