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74AHC139D

Dual 2-to-4 line decoder/demultiplexer

The 74AHC139; 74AHCT139 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 74AHC139; 74AHCT139 is a high-speed, dual 2-to-4 line decoder/demultiplexer. This device has two independent decoders, each accepting two binary weighted inputs (nA0 and nA1) and providing four mutually exclusive active LOW outputs (nY0 to nY3). Each decoder has an active LOW enable input (nE). When nE is HIGH, every output is forced HIGH. The enable input can be used as the data input for a 1-to-4 demultiplexer application.

The 74AHC139; 74AHCT139 is identical to the HEF4556 of the HE4000B family.

Alternatives

Orderable parts

Type number Orderable part number Ordering code (12NC) Package Buy from distributors
74AHC139D 74AHC139D,118 935263565118 SOT109-1 Order product
74AHC139D 74AHC139D,112 935263565112 SOT109-1 Order product

Features and benefits

  • Balanced propagation delays
  • All inputs have Schmitt-trigger actions
  • Inputs accept voltages higher than VCC
  • Input levels:
    • For 74AHC139: CMOS level
    • For 74AHCT139: 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 Cel to +85 Cel and from -40 Cel to +125 Cel

Applications

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
74AHC139DProduction2.0 - 5.5CMOS± 83.9low-40~125908.649SO16

Package

Type numberOrderable part number, (Ordering code (12NC))StatusMarkingPackagePackage informationReflow-/Wave solderingPacking
74AHC139D74AHC139D,118
( 9352 635 65118 ) 		Active74AHC139D
SO16
(SOT109-1) 		SOT109-1SO-SOJ-REFLOW
SO-SOJ-WAVE
Reel 13" Q1/T1
74AHC139D,112
( 9352 635 65112 ) 		Active74AHC139DBulk Pack

Quality, reliability & chemical content

Type numberOrderable part numberChemical contentRoHS / RHFEFRIFRMTBF (hour)MSLMSL leadfree
74AHC139D74AHC139D,11874AHC139D84.96.621.51E811
74AHC139D74AHC139D,11274AHC139D84.96.621.51E811
Quality and reliability disclaimer

Series

Documentation (5)

File nameTitleTypeDate
74AHC_AHCT139Dual 2-to-4 line decoder/demultiplexerData sheet2017-07-20
AN11106Pin FMEA for AHC/AHCT familyApplication note2019-01-09
ahc139ahc139 IBIS modelIBIS model2013-04-07
SO-SOJ-REFLOWFootprint for reflow solderingReflow soldering2009-10-08
SO-SOJ-WAVEFootprint for wave solderingWave soldering2009-10-08

Support

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.

Models

File nameTitleTypeDate
ahc139ahc139 IBIS modelIBIS model2013-04-07

Ordering, pricing & availability

Type numberOrderable part numberOrdering code (12NC)PackingBuy online
74AHC139D74AHC139D,118935263565118Reel 13" Q1/T1Order product
74AHC139D74AHC139D,112935263565112Bulk PackOrder product

Sample

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Sample orders normally take 2-4 days for delivery.

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