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74AHCT257D

Quad 2-input multiplexer; 3-state

The 74AHC257; 74AHCT257 is a quad 2-input multiplexer with 3-state outputs. Inputs are overvoltage tolerant. This feature allows the use of these devices as translators in mixed voltage environments.

Alternatives

Orderable parts

Type number Orderable part number Ordering code (12NC) Package Buy from distributors
74AHCT257D 74AHCT257D,118 935265469118 SOT109-1 Order product

Features and benefits

  • Balanced propagation delays

  • All inputs have Schmitt-trigger actions

  • Non-inverting data path

  • Wide supply voltage range from 2.0 V to 5.5 V

  • Input levels:

    • For 74AHC257: CMOS level

    • For 74AHCT257: TTL level

  • Overvoltage tolerant inputs to 5.5 V

  • High noise immunity

  • CMOS low power dissipation

  • Latch-up performance exceeds 100 mA per JESD 78 Class II Level A

  • ESD protection:

    • HBM: ANSI/ESDA/JEDEC JS-001 class 2 exceeds 2000 V

    • CDM: ANSI/ESDA/JEDEC JS-002 class C3 exceeds 1000 V

  • Specified from -40 °C to +85 °C and from -40 °C to +125 °C

Parametrics

Type numberProduct statusVCC (V)Logic switching levelsOutput drive capability (mA)tpd (ns)Power dissipation considerationsTamb (°C)Rth(j-a) (K/W)Ψth(j-top) (K/W)Rth(j-c) (K/W)Package name
74AHCT257DProduction4.5 - 5.5TTL± 83.7low-40~125939.752SO16

PCB Symbol, Footprint and 3D Model

Model NameDescription

Package

Type numberOrderable part number, (Ordering code (12NC))StatusMarkingPackagePackage informationReflow-/Wave solderingPacking
74AHCT257D74AHCT257D,118
( 9352 654 69118 ) 		Active74AHCT257D
SO16
(SOT109-1) 		SOT109-1SO-SOJ-REFLOW
SO-SOJ-WAVE
SOT109-1_118

Environmental information

Type numberOrderable part numberChemical contentRoHSRHF-indicator
74AHCT257D74AHCT257D,11874AHCT257D
Quality and reliability disclaimer

Series

Documentation (9)

File nameTitleTypeDate
74AHC_AHCT257Quad 2-input multiplexer; 3-stateData sheet2023-08-30
AN11106Pin FMEA for AHC/AHCT familyApplication note2019-01-09
ahct257ahct257 IBIS modelIBIS model2013-04-07
74AHCT257D_Nexperia_Product_Reliability74AHCT257D Nexperia Product ReliabilityQuality document2023-05-29
SO-SOJ-REFLOWFootprint for reflow solderingReflow soldering2009-10-08
SO-SOJ-WAVEFootprint for wave solderingWave soldering2009-10-08
SOT109-1_118SO16; Reel pack for SMD, 13"; Q1/T1 product orientationPacking information2023-01-17
WAVE_BG-BD-1Wave soldering profileWave soldering2021-09-08
SOT109-1_112SO16; Tube pack; Standard product orientationPacking information2021-09-10

Support

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Models

File nameTitleTypeDate
ahct257ahct257 IBIS modelIBIS model2013-04-07

PCB Symbol, Footprint and 3D Model

Model NameDescription

Ordering, pricing & availability

Type numberOrderable part numberOrdering code (12NC)PackingPacking quantityBuy online
74AHCT257D74AHCT257D,118935265469118SOT109-1_118- Order 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.

How does it work?

The interactive datasheets are based on the Nexperia MOSFET precision electrothermal models. With our interactive datasheets you can simply specify your own conditions interactively. Start by changing the values of the conditions. You can do this by using the sliders in the condition fields. By dragging the sliders you will see how the MOSFET will perform at the new conditions set.

Interactive datasheet